TY  - JOUR
AU  - Milić, Mirta
AU  - Ceppi, Marcello
AU  - Bruzzone, Marco
AU  - Azqueta, Amaya
AU  - Brunborg, Gunnar
AU  - Godschalk, Roger
AU  - Koppen, Gudrun
AU  - Langie, Sabine
AU  - Møller, Peter
AU  - Teixeira, João Paulo
AU  - Alija, Avdulla
AU  - Anderson, Diana
AU  - Andrade, Vanessa
AU  - Andreoli, Cristina
AU  - Asllani, Fisnik
AU  - Bangkoglu, Ezgi Eyluel
AU  - Barančoková, Magdalena
AU  - Basaran, Nursen
AU  - Boutet-Robinet, Elisa
AU  - Buschini, Annamaria
AU  - Cavallo, Delia
AU  - Costa Pereira, Cristiana
AU  - Costa, Carla
AU  - Costa, Solange
AU  - Da Silva, Juliana
AU  - Del Boˊ, Cristian
AU  - Dimitrijević Srećković, Vesna
AU  - Đelić, Ninoslav
AU  - Dobrzyńska, Malgorzata
AU  - Duračková, Zdenka
AU  - Dvořáková, Monika
AU  - Gajski, Goran
AU  - Galati, Serena
AU  - García Lima, Omar
AU  - Giovannelli, Lisa
AU  - Goroshinskaya, Irina A.
AU  - Grindel, Annemarie
AU  - Gutzkow, Kristine B.
AU  - Hernández, Alba
AU  - Hernández, Carlos
AU  - Holven, Kirsten B.
AU  - Ibero-Baraibar, Idoia
AU  - Ottestad, Inger
AU  - Kadioglu, Ela
AU  - Kažimirová, Alena
AU  - Kuznetsova, Elena
AU  - Ladeira, Carina
AU  - Laffon, Blanca
AU  - Lamonaca, Palma
AU  - Lebailly, Pierre
AU  - Louro, Henriqueta
AU  - Mandina Cardoso, Tania
AU  - Marcon, Francesca
AU  - Marcos, Ricard
AU  - Moretti, Massimo
AU  - Moretti, Silvia
AU  - Najafzadeh, Mojgan
AU  - Nemeth, Zsuzsanna
AU  - Neri, Monica
AU  - Novotna, Bozena
AU  - Orlow, Irene
AU  - Paduchova, Zuzana
AU  - Pastor, Susana
AU  - Perdry, Hervé
AU  - Spremo-Potparević, Biljana
AU  - Ramadhani, Dwi
AU  - Riso, Patrizia
AU  - Rohr, Paula
AU  - Rojas, Emilio
AU  - Rossner, Pavel
AU  - Safar, Anna
AU  - Sardas, Semra
AU  - Silva, Maria João
AU  - Sirota, Nikolay
AU  - Smolkova, Bozena
AU  - Staruchova, Marta
AU  - Stetina, Rudolf
AU  - Stopper, Helga
AU  - Surikova, Ekaterina I.
AU  - Ulven, Stine M.
AU  - Ursini, Cinzia Lucia
AU  - Valdiglesias, Vanessa
AU  - Valverde, Mahara
AU  - Vodicka, Pavel
AU  - Volkovova, Katarina
AU  - Wagner, Karl-Heinz
AU  - Živković, Lada
AU  - Dušinská, Maria
AU  - Collins, Andrew R.
AU  - Bonassi, Stefano
PY  - 2021
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2020
AB  - The alkaline comet assay, or single cell gel electrophoresis, is one of the most popular methods for assessing DNA damage in human population. One of the open issues concerning this assay is the identification of those factors that can explain the large inter-individual and inter-laboratory variation. International collaborative initiatives such as the hCOMET project - a COST Action launched in 2016 - represent a valuable tool to meet this challenge. The aims of hCOMET were to establish reference values for the level of DNA damage in humans, to investigate the effect of host factors, lifestyle and exposure to genotoxic agents, and to compare different sources of assay variability. A database of 19,320 subjects was generated, pooling data from 105 studies run by 44 laboratories in 26 countries between 1999 and 2019. A mixed random effect log-linear model, in parallel with a classic meta-analysis, was applied to take into account the extensive heterogeneity of data, due to descriptor, specimen and protocol variability. As a result of this analysis interquartile intervals of DNA strand breaks (which includes alkali-labile sites) were reported for tail intensity, tail length, and tail moment (comet assay descriptors). A small variation by age was reported in some datasets, suggesting higher DNA damage in oldest age-classes, while no effect could be shown for sex or smoking habit, although the lack of data on heavy smokers has still to be considered. Finally, highly significant differences in DNA damage were found for most exposures investigated in specific studies. In conclusion, these data, which confirm that DNA damage measured by the comet assay is an excellent biomarker of exposure in several conditions, may contribute to improving the quality of study design and to the standardization of results of the comet assay in human populations.
PB  - Elsevier
T2  - Mutation Research/Reviews in Mutation Research
T1  - The hCOMET project: International database comparison of results with the comet assay in human biomonitoring. Baseline frequency of DNA damage and effect of main confounders
VL  - 787
SP  - 108371
DO  - 10.1016/j.mrrev.2021.108371
ER  - 

@article{
author = "Milić, Mirta and Ceppi, Marcello and Bruzzone, Marco and Azqueta, Amaya and Brunborg, Gunnar and Godschalk, Roger and Koppen, Gudrun and Langie, Sabine and Møller, Peter and Teixeira, João Paulo and Alija, Avdulla and Anderson, Diana and Andrade, Vanessa and Andreoli, Cristina and Asllani, Fisnik and Bangkoglu, Ezgi Eyluel and Barančoková, Magdalena and Basaran, Nursen and Boutet-Robinet, Elisa and Buschini, Annamaria and Cavallo, Delia and Costa Pereira, Cristiana and Costa, Carla and Costa, Solange and Da Silva, Juliana and Del Boˊ, Cristian and Dimitrijević Srećković, Vesna and Đelić, Ninoslav and Dobrzyńska, Malgorzata and Duračková, Zdenka and Dvořáková, Monika and Gajski, Goran and Galati, Serena and García Lima, Omar and Giovannelli, Lisa and Goroshinskaya, Irina A. and Grindel, Annemarie and Gutzkow, Kristine B. and Hernández, Alba and Hernández, Carlos and Holven, Kirsten B. and Ibero-Baraibar, Idoia and Ottestad, Inger and Kadioglu, Ela and Kažimirová, Alena and Kuznetsova, Elena and Ladeira, Carina and Laffon, Blanca and Lamonaca, Palma and Lebailly, Pierre and Louro, Henriqueta and Mandina Cardoso, Tania and Marcon, Francesca and Marcos, Ricard and Moretti, Massimo and Moretti, Silvia and Najafzadeh, Mojgan and Nemeth, Zsuzsanna and Neri, Monica and Novotna, Bozena and Orlow, Irene and Paduchova, Zuzana and Pastor, Susana and Perdry, Hervé and Spremo-Potparević, Biljana and Ramadhani, Dwi and Riso, Patrizia and Rohr, Paula and Rojas, Emilio and Rossner, Pavel and Safar, Anna and Sardas, Semra and Silva, Maria João and Sirota, Nikolay and Smolkova, Bozena and Staruchova, Marta and Stetina, Rudolf and Stopper, Helga and Surikova, Ekaterina I. and Ulven, Stine M. and Ursini, Cinzia Lucia and Valdiglesias, Vanessa and Valverde, Mahara and Vodicka, Pavel and Volkovova, Katarina and Wagner, Karl-Heinz and Živković, Lada and Dušinská, Maria and Collins, Andrew R. and Bonassi, Stefano",
year = "2021",
abstract = "The alkaline comet assay, or single cell gel electrophoresis, is one of the most popular methods for assessing DNA damage in human population. One of the open issues concerning this assay is the identification of those factors that can explain the large inter-individual and inter-laboratory variation. International collaborative initiatives such as the hCOMET project - a COST Action launched in 2016 - represent a valuable tool to meet this challenge. The aims of hCOMET were to establish reference values for the level of DNA damage in humans, to investigate the effect of host factors, lifestyle and exposure to genotoxic agents, and to compare different sources of assay variability. A database of 19,320 subjects was generated, pooling data from 105 studies run by 44 laboratories in 26 countries between 1999 and 2019. A mixed random effect log-linear model, in parallel with a classic meta-analysis, was applied to take into account the extensive heterogeneity of data, due to descriptor, specimen and protocol variability. As a result of this analysis interquartile intervals of DNA strand breaks (which includes alkali-labile sites) were reported for tail intensity, tail length, and tail moment (comet assay descriptors). A small variation by age was reported in some datasets, suggesting higher DNA damage in oldest age-classes, while no effect could be shown for sex or smoking habit, although the lack of data on heavy smokers has still to be considered. Finally, highly significant differences in DNA damage were found for most exposures investigated in specific studies. In conclusion, these data, which confirm that DNA damage measured by the comet assay is an excellent biomarker of exposure in several conditions, may contribute to improving the quality of study design and to the standardization of results of the comet assay in human populations.",
publisher = "Elsevier",
journal = "Mutation Research/Reviews in Mutation Research",
title = "The hCOMET project: International database comparison of results with the comet assay in human biomonitoring. Baseline frequency of DNA damage and effect of main confounders",
volume = "787",
pages = "108371",
doi = "10.1016/j.mrrev.2021.108371"
}

Milić, M., Ceppi, M., Bruzzone, M., Azqueta, A., Brunborg, G., Godschalk, R., Koppen, G., Langie, S., Møller, P., Teixeira, J. P., Alija, A., Anderson, D., Andrade, V., Andreoli, C., Asllani, F., Bangkoglu, E. E., Barančoková, M., Basaran, N., Boutet-Robinet, E., Buschini, A., Cavallo, D., Costa Pereira, C., Costa, C., Costa, S., Da Silva, J., Del Boˊ, C., Dimitrijević Srećković, V., Đelić, N., Dobrzyńska, M., Duračková, Z., Dvořáková, M., Gajski, G., Galati, S., García Lima, O., Giovannelli, L., Goroshinskaya, I. A., Grindel, A., Gutzkow, K. B., Hernández, A., Hernández, C., Holven, K. B., Ibero-Baraibar, I., Ottestad, I., Kadioglu, E., Kažimirová, A., Kuznetsova, E., Ladeira, C., Laffon, B., Lamonaca, P., Lebailly, P., Louro, H., Mandina Cardoso, T., Marcon, F., Marcos, R., Moretti, M., Moretti, S., Najafzadeh, M., Nemeth, Z., Neri, M., Novotna, B., Orlow, I., Paduchova, Z., Pastor, S., Perdry, H., Spremo-Potparević, B., Ramadhani, D., Riso, P., Rohr, P., Rojas, E., Rossner, P., Safar, A., Sardas, S., Silva, M. J., Sirota, N., Smolkova, B., Staruchova, M., Stetina, R., Stopper, H., Surikova, E. I., Ulven, S. M., Ursini, C. L., Valdiglesias, V., Valverde, M., Vodicka, P., Volkovova, K., Wagner, K., Živković, L., Dušinská, M., Collins, A. R.,& Bonassi, S.. (2021). The hCOMET project: International database comparison of results with the comet assay in human biomonitoring. Baseline frequency of DNA damage and effect of main confounders. in Mutation Research/Reviews in Mutation Research
Elsevier., 787, 108371.
https://doi.org/10.1016/j.mrrev.2021.108371

Milić M, Ceppi M, Bruzzone M, Azqueta A, Brunborg G, Godschalk R, Koppen G, Langie S, Møller P, Teixeira JP, Alija A, Anderson D, Andrade V, Andreoli C, Asllani F, Bangkoglu EE, Barančoková M, Basaran N, Boutet-Robinet E, Buschini A, Cavallo D, Costa Pereira C, Costa C, Costa S, Da Silva J, Del Boˊ C, Dimitrijević Srećković V, Đelić N, Dobrzyńska M, Duračková Z, Dvořáková M, Gajski G, Galati S, García Lima O, Giovannelli L, Goroshinskaya IA, Grindel A, Gutzkow KB, Hernández A, Hernández C, Holven KB, Ibero-Baraibar I, Ottestad I, Kadioglu E, Kažimirová A, Kuznetsova E, Ladeira C, Laffon B, Lamonaca P, Lebailly P, Louro H, Mandina Cardoso T, Marcon F, Marcos R, Moretti M, Moretti S, Najafzadeh M, Nemeth Z, Neri M, Novotna B, Orlow I, Paduchova Z, Pastor S, Perdry H, Spremo-Potparević B, Ramadhani D, Riso P, Rohr P, Rojas E, Rossner P, Safar A, Sardas S, Silva MJ, Sirota N, Smolkova B, Staruchova M, Stetina R, Stopper H, Surikova EI, Ulven SM, Ursini CL, Valdiglesias V, Valverde M, Vodicka P, Volkovova K, Wagner K, Živković L, Dušinská M, Collins AR, Bonassi S. The hCOMET project: International database comparison of results with the comet assay in human biomonitoring. Baseline frequency of DNA damage and effect of main confounders. in Mutation Research/Reviews in Mutation Research. 2021;787:108371.
doi:10.1016/j.mrrev.2021.108371 .

Milić, Mirta, Ceppi, Marcello, Bruzzone, Marco, Azqueta, Amaya, Brunborg, Gunnar, Godschalk, Roger, Koppen, Gudrun, Langie, Sabine, Møller, Peter, Teixeira, João Paulo, Alija, Avdulla, Anderson, Diana, Andrade, Vanessa, Andreoli, Cristina, Asllani, Fisnik, Bangkoglu, Ezgi Eyluel, Barančoková, Magdalena, Basaran, Nursen, Boutet-Robinet, Elisa, Buschini, Annamaria, Cavallo, Delia, Costa Pereira, Cristiana, Costa, Carla, Costa, Solange, Da Silva, Juliana, Del Boˊ, Cristian, Dimitrijević Srećković, Vesna, Đelić, Ninoslav, Dobrzyńska, Malgorzata, Duračková, Zdenka, Dvořáková, Monika, Gajski, Goran, Galati, Serena, García Lima, Omar, Giovannelli, Lisa, Goroshinskaya, Irina A., Grindel, Annemarie, Gutzkow, Kristine B., Hernández, Alba, Hernández, Carlos, Holven, Kirsten B., Ibero-Baraibar, Idoia, Ottestad, Inger, Kadioglu, Ela, Kažimirová, Alena, Kuznetsova, Elena, Ladeira, Carina, Laffon, Blanca, Lamonaca, Palma, Lebailly, Pierre, Louro, Henriqueta, Mandina Cardoso, Tania, Marcon, Francesca, Marcos, Ricard, Moretti, Massimo, Moretti, Silvia, Najafzadeh, Mojgan, Nemeth, Zsuzsanna, Neri, Monica, Novotna, Bozena, Orlow, Irene, Paduchova, Zuzana, Pastor, Susana, Perdry, Hervé, Spremo-Potparević, Biljana, Ramadhani, Dwi, Riso, Patrizia, Rohr, Paula, Rojas, Emilio, Rossner, Pavel, Safar, Anna, Sardas, Semra, Silva, Maria João, Sirota, Nikolay, Smolkova, Bozena, Staruchova, Marta, Stetina, Rudolf, Stopper, Helga, Surikova, Ekaterina I., Ulven, Stine M., Ursini, Cinzia Lucia, Valdiglesias, Vanessa, Valverde, Mahara, Vodicka, Pavel, Volkovova, Katarina, Wagner, Karl-Heinz, Živković, Lada, Dušinská, Maria, Collins, Andrew R., Bonassi, Stefano, "The hCOMET project: International database comparison of results with the comet assay in human biomonitoring. Baseline frequency of DNA damage and effect of main confounders" in Mutation Research/Reviews in Mutation Research, 787 (2021):108371,
https://doi.org/10.1016/j.mrrev.2021.108371 . .

TY  - JOUR
AU  - Sjakste, Nikolajs
AU  - Đelić, Ninoslav
AU  - Dzintare, Maija
AU  - Živković, Lada
PY  - 2020
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1817
AB  - The review summarizes literature data on the DNA-binding, DNA-protecting and DNA-damaging activities of a range of natural human endogenous and exogenous compounds. Small natural organic molecules bind DNA in a site-specific mode, by arranging tight touch with the structure of the major and minor grooves, as well as individual bases in the local duplex DNA. Polyphenols are the best-studied exogenous compounds from this point of view. Many of them demonstrate hormetic effects, producing both beneficial and damaging effects. An attempt to establish the dependence of DNA damage or DNA protection on the concentration of the compound turned out to be successful for some polyphenols, daidzein, genistein and resveratrol, which were DNA protecting in low concentrations and DNA damaging in high concentrations. There was no evident dependence on concentration for quercetin and kaempferol. Probably, the DNA-protecting effect is associated with the affinity to DNA. Caffeine and theophylline are DNA binders; at the same time, they favor DNA repair. Although most alkaloids damage DNA, berberine can protect DNA against damage. Among the endogenous compounds, hormones belonging to the amine class, thyroid and steroid hormones appear to bind DNA and produce some DNA damage. Thus, natural compounds continue to reveal beneficial or adverse effects on genome integrity and provide a promising source of therapeutic activities.
PB  - Elsevier Ireland Ltd, Clare
T2  - Chemico-Biological Interactions
T1  - DNA-binding and DNA-protecting activities of small natural organic molecules and food extracts
VL  - 323
SP  - 109030
DO  - 10.1016/j.cbi.2020.109030
ER  - 

@article{
author = "Sjakste, Nikolajs and Đelić, Ninoslav and Dzintare, Maija and Živković, Lada",
year = "2020",
abstract = "The review summarizes literature data on the DNA-binding, DNA-protecting and DNA-damaging activities of a range of natural human endogenous and exogenous compounds. Small natural organic molecules bind DNA in a site-specific mode, by arranging tight touch with the structure of the major and minor grooves, as well as individual bases in the local duplex DNA. Polyphenols are the best-studied exogenous compounds from this point of view. Many of them demonstrate hormetic effects, producing both beneficial and damaging effects. An attempt to establish the dependence of DNA damage or DNA protection on the concentration of the compound turned out to be successful for some polyphenols, daidzein, genistein and resveratrol, which were DNA protecting in low concentrations and DNA damaging in high concentrations. There was no evident dependence on concentration for quercetin and kaempferol. Probably, the DNA-protecting effect is associated with the affinity to DNA. Caffeine and theophylline are DNA binders; at the same time, they favor DNA repair. Although most alkaloids damage DNA, berberine can protect DNA against damage. Among the endogenous compounds, hormones belonging to the amine class, thyroid and steroid hormones appear to bind DNA and produce some DNA damage. Thus, natural compounds continue to reveal beneficial or adverse effects on genome integrity and provide a promising source of therapeutic activities.",
publisher = "Elsevier Ireland Ltd, Clare",
journal = "Chemico-Biological Interactions",
title = "DNA-binding and DNA-protecting activities of small natural organic molecules and food extracts",
volume = "323",
pages = "109030",
doi = "10.1016/j.cbi.2020.109030"
}

Sjakste, N., Đelić, N., Dzintare, M.,& Živković, L.. (2020). DNA-binding and DNA-protecting activities of small natural organic molecules and food extracts. in Chemico-Biological Interactions
Elsevier Ireland Ltd, Clare., 323, 109030.
https://doi.org/10.1016/j.cbi.2020.109030

Sjakste N, Đelić N, Dzintare M, Živković L. DNA-binding and DNA-protecting activities of small natural organic molecules and food extracts. in Chemico-Biological Interactions. 2020;323:109030.
doi:10.1016/j.cbi.2020.109030 .

Sjakste, Nikolajs, Đelić, Ninoslav, Dzintare, Maija, Živković, Lada, "DNA-binding and DNA-protecting activities of small natural organic molecules and food extracts" in Chemico-Biological Interactions, 323 (2020):109030,
https://doi.org/10.1016/j.cbi.2020.109030 . .

TY  - JOUR
AU  - Topalović, Dijana
AU  - Živković, Lada
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2020
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2050
AB  - Objective. Inosine 5'-monophosphate dehydrogenase (IMPDH) activity in cancer cells is increased. Tiazofurin selectively inhibits the activity of IMPDH, and it has been granted for the treatment of different cancers and new viral diseases. Its widespread use was limited because exposure to tiazofurin under certain circumstances was found to have a higher frequency of severe non-hematologic toxicity. Therefore, the objective of this study was to examine genotoxic action and inducement of DNA damage of tiazofurin using the comet assay. Methods. The ability of tiazofurin to induce DNA damage was evaluated using single-cell gel electrophoresis (SCGE) technique/comet assay. Human whole blood cells were exposed to three final concentrations of tiazofurin (1µM/mL, 2 µM/mL, and 5 µM/mL) for 30 min in vitro. Results. Our results indicate that tiazofurin produced a significant level of DNA damage on whole blood cells after 30 min of exposure vs. control. All tested concentrations were significantly comet-forming, in a concentration-dependent manner. Conclusion. Our investigation on the tiazofurin-treated cells and their relationship to the formation of DNA damage demonstrated that the genotoxic effect was induced after exposure to tiazofurin under described conditions.
AB  - Cilj. Aktivnost inozin 5’-monofosfat dehidrogenaze
(IMPDH) povećana je u ćelijama karcinoma. Tiazofurin
selektivno inhibira aktivnost IMPDH i odobren je za lečenje
različitih karcinoma i novih virusnih bolesti. Njegova široko
rasprostranjena upotreba bila je ograničena jer je utvrđeno
da je izloženost tiazofurinu pod određenim okolnostima
imala veću incidencu ozbiljne nehematološke toksičnosti.
Stoga je cilj ove studije bio da se pomoću komet testa ispita
genotoksično delovanje i izazivanje DNK oštećenja
tiazofurinom.
Metode. Sposobnost tiazofurina da izazove DNK
oštećenje procenjena je primenom elektroforeze DNK
pojedinačnih ćelija (SCGE) / komet testa. Ćelije pune krvi su
bile izložene trima konačnim koncentracijama tiazofurina (1
µM/mL, 2 µM/mL, and 5 µM/mL) tokom 30 minuta in vitro.
Rezultati. Naši rezultati ukazuju na to da je tiazofurin
proizveo značajan nivo DNK oštećenja na ćelijama pune krvi
nakon 30 minuta izlaganja u odnosu na kontrolu. Sve
ispitivane koncentracije su dovele do značajnog nastanka
kometa, pri čemu je nivo oštećenja rastao s koncentracijom.
Zaključak. Naše istraživanje ćelija tretiranih
tiazofurinom i njihova reakcija na izazivanje DNK oštećenja pokazalo je da je tiazofurin ispoljio genotoksični efekat pod opisanim uslovima
PB  - Kragujevac : Srpsko lekarsko društvo - Okružna podružnica Kragujevac
T2  - Medicinski časopis
T1  - Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay
T1  - Analiza dnk oštećenja izazvanog tiazofurinom u humanim ćelijama pune krvi primenom in vitro komet testa
VL  - 54
IS  - 3
SP  - 91
EP  - 95
DO  - 10.5937/mckg54-28798
ER  - 

@article{
author = "Topalović, Dijana and Živković, Lada and Đelić, Ninoslav and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2020",
abstract = "Objective. Inosine 5'-monophosphate dehydrogenase (IMPDH) activity in cancer cells is increased. Tiazofurin selectively inhibits the activity of IMPDH, and it has been granted for the treatment of different cancers and new viral diseases. Its widespread use was limited because exposure to tiazofurin under certain circumstances was found to have a higher frequency of severe non-hematologic toxicity. Therefore, the objective of this study was to examine genotoxic action and inducement of DNA damage of tiazofurin using the comet assay. Methods. The ability of tiazofurin to induce DNA damage was evaluated using single-cell gel electrophoresis (SCGE) technique/comet assay. Human whole blood cells were exposed to three final concentrations of tiazofurin (1µM/mL, 2 µM/mL, and 5 µM/mL) for 30 min in vitro. Results. Our results indicate that tiazofurin produced a significant level of DNA damage on whole blood cells after 30 min of exposure vs. control. All tested concentrations were significantly comet-forming, in a concentration-dependent manner. Conclusion. Our investigation on the tiazofurin-treated cells and their relationship to the formation of DNA damage demonstrated that the genotoxic effect was induced after exposure to tiazofurin under described conditions., Cilj. Aktivnost inozin 5’-monofosfat dehidrogenaze
(IMPDH) povećana je u ćelijama karcinoma. Tiazofurin
selektivno inhibira aktivnost IMPDH i odobren je za lečenje
različitih karcinoma i novih virusnih bolesti. Njegova široko
rasprostranjena upotreba bila je ograničena jer je utvrđeno
da je izloženost tiazofurinu pod određenim okolnostima
imala veću incidencu ozbiljne nehematološke toksičnosti.
Stoga je cilj ove studije bio da se pomoću komet testa ispita
genotoksično delovanje i izazivanje DNK oštećenja
tiazofurinom.
Metode. Sposobnost tiazofurina da izazove DNK
oštećenje procenjena je primenom elektroforeze DNK
pojedinačnih ćelija (SCGE) / komet testa. Ćelije pune krvi su
bile izložene trima konačnim koncentracijama tiazofurina (1
µM/mL, 2 µM/mL, and 5 µM/mL) tokom 30 minuta in vitro.
Rezultati. Naši rezultati ukazuju na to da je tiazofurin
proizveo značajan nivo DNK oštećenja na ćelijama pune krvi
nakon 30 minuta izlaganja u odnosu na kontrolu. Sve
ispitivane koncentracije su dovele do značajnog nastanka
kometa, pri čemu je nivo oštećenja rastao s koncentracijom.
Zaključak. Naše istraživanje ćelija tretiranih
tiazofurinom i njihova reakcija na izazivanje DNK oštećenja pokazalo je da je tiazofurin ispoljio genotoksični efekat pod opisanim uslovima",
publisher = "Kragujevac : Srpsko lekarsko društvo - Okružna podružnica Kragujevac",
journal = "Medicinski časopis",
title = "Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay, Analiza dnk oštećenja izazvanog tiazofurinom u humanim ćelijama pune krvi primenom in vitro komet testa",
volume = "54",
number = "3",
pages = "91-95",
doi = "10.5937/mckg54-28798"
}

Topalović, D., Živković, L., Đelić, N., Bajić, V.,& Spremo-Potparević, B.. (2020). Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay. in Medicinski časopis
Kragujevac : Srpsko lekarsko društvo - Okružna podružnica Kragujevac., 54(3), 91-95.
https://doi.org/10.5937/mckg54-28798

Topalović D, Živković L, Đelić N, Bajić V, Spremo-Potparević B. Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay. in Medicinski časopis. 2020;54(3):91-95.
doi:10.5937/mckg54-28798 .

Topalović, Dijana, Živković, Lada, Đelić, Ninoslav, Bajić, Vladan, Spremo-Potparević, Biljana, "Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay" in Medicinski časopis, 54, no. 3 (2020):91-95,
https://doi.org/10.5937/mckg54-28798 . .

TY  - JOUR
AU  - Pirković-Čabarkapa, Andrea
AU  - Živković, Lada
AU  - Zlatković-Švenda, M.
AU  - Borozan, Sunčica
AU  - Topalović, Dijana
AU  - Dekanski, Dragana
AU  - Bruić, Marija
AU  - Bajić, Vladan
AU  - Radak-Perović, Marija
AU  - Spremo-Potparević, Biljana
PY  - 2020
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1849
AB  - Oxidative stress and inflammation are DNA instability factors for rheumatoid arthritis (RA) patients. The aims of this study were to evaluate cytogenetic alterations in Peripheral Blood Lymphocytes (PBL) in two groups of RA patients: the early and the long-term RA group; and to examine potential of concomitant treatment with Methotrexate (MTX) and Dry olive leaf extract (DOLE) against cytogenetic damage in RA patients after a 3-weeks treatment. A total of 32 RA patients and 10 healthy individuals were included. RA patients were equally divided into four groups: two groups with early phase RA (one treated with MTX alone, the other in combination with DOLE); and two long-term phase RA groups (group with active disease and group with low disease activity)-both treated with MTX and DOLE combination. PBL cultures were screened for chromosome aberrations and micronuclei frequencies. Significantly increased frequencies of micronuclei were shown in active phase RA disease (both early and long-term) but not in the group with low disease activity, as compared to controls. Chromosome aberrations were detected for all 4 RA groups. The highest frequencies of micronuclei and chromosome aberrations were found in the long-term active RA group. After 3 weeks-treatment, there were no significant decrease of the micronuclei frequencies compared to baseline, although they were reduced in all RA groups, except for the group with the long-term active disease. High level of cytogenetic damage in RA patients was concordant with duration and activity of the RA disease. At 3 weeks of therapy, neither the combined treatment (MTX+DOLE), nor MTX alone did not affect the frequency of micronuclei formation.
T2  - Genetika
T1  - Cytogenetic alterations in rheumatoid arthritis patients treated with methotrexate and dry olive leaf extract
VL  - 52
IS  - 1
SP  - 67
EP  - 80
DO  - 10.2298/GENSR2001067P
ER  - 

@article{
author = "Pirković-Čabarkapa, Andrea and Živković, Lada and Zlatković-Švenda, M. and Borozan, Sunčica and Topalović, Dijana and Dekanski, Dragana and Bruić, Marija and Bajić, Vladan and Radak-Perović, Marija and Spremo-Potparević, Biljana",
year = "2020",
abstract = "Oxidative stress and inflammation are DNA instability factors for rheumatoid arthritis (RA) patients. The aims of this study were to evaluate cytogenetic alterations in Peripheral Blood Lymphocytes (PBL) in two groups of RA patients: the early and the long-term RA group; and to examine potential of concomitant treatment with Methotrexate (MTX) and Dry olive leaf extract (DOLE) against cytogenetic damage in RA patients after a 3-weeks treatment. A total of 32 RA patients and 10 healthy individuals were included. RA patients were equally divided into four groups: two groups with early phase RA (one treated with MTX alone, the other in combination with DOLE); and two long-term phase RA groups (group with active disease and group with low disease activity)-both treated with MTX and DOLE combination. PBL cultures were screened for chromosome aberrations and micronuclei frequencies. Significantly increased frequencies of micronuclei were shown in active phase RA disease (both early and long-term) but not in the group with low disease activity, as compared to controls. Chromosome aberrations were detected for all 4 RA groups. The highest frequencies of micronuclei and chromosome aberrations were found in the long-term active RA group. After 3 weeks-treatment, there were no significant decrease of the micronuclei frequencies compared to baseline, although they were reduced in all RA groups, except for the group with the long-term active disease. High level of cytogenetic damage in RA patients was concordant with duration and activity of the RA disease. At 3 weeks of therapy, neither the combined treatment (MTX+DOLE), nor MTX alone did not affect the frequency of micronuclei formation.",
journal = "Genetika",
title = "Cytogenetic alterations in rheumatoid arthritis patients treated with methotrexate and dry olive leaf extract",
volume = "52",
number = "1",
pages = "67-80",
doi = "10.2298/GENSR2001067P"
}

Pirković-Čabarkapa, A., Živković, L., Zlatković-Švenda, M., Borozan, S., Topalović, D., Dekanski, D., Bruić, M., Bajić, V., Radak-Perović, M.,& Spremo-Potparević, B.. (2020). Cytogenetic alterations in rheumatoid arthritis patients treated with methotrexate and dry olive leaf extract. in Genetika, 52(1), 67-80.
https://doi.org/10.2298/GENSR2001067P

Pirković-Čabarkapa A, Živković L, Zlatković-Švenda M, Borozan S, Topalović D, Dekanski D, Bruić M, Bajić V, Radak-Perović M, Spremo-Potparević B. Cytogenetic alterations in rheumatoid arthritis patients treated with methotrexate and dry olive leaf extract. in Genetika. 2020;52(1):67-80.
doi:10.2298/GENSR2001067P .

Pirković-Čabarkapa, Andrea, Živković, Lada, Zlatković-Švenda, M., Borozan, Sunčica, Topalović, Dijana, Dekanski, Dragana, Bruić, Marija, Bajić, Vladan, Radak-Perović, Marija, Spremo-Potparević, Biljana, "Cytogenetic alterations in rheumatoid arthritis patients treated with methotrexate and dry olive leaf extract" in Genetika, 52, no. 1 (2020):67-80,
https://doi.org/10.2298/GENSR2001067P . .

TY  - JOUR
AU  - Topalović, Dijana
AU  - Dekanski, Dragana
AU  - Spremo-Potparević, Biljana
AU  - Pirković, Andrea
AU  - Borozan, Sunčica
AU  - Bajić, Vladan
AU  - Stojanović, Danilo
AU  - Giampieri, Francesca
AU  - Gasparrini, Massimiliano
AU  - Živković, Lada
PY  - 2019
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1791
AB  - Phenolic groups of steroidal or nonsteroidal estrogens can redox cycle, leading to oxidative stress, where creation of reactive oxygen species are recognized as the main mechanism of their DNA damage properties. Dry olive (Olea europaea L.) leaf extract is known to contain bioactive and antioxidative components and to have an ability to modulate the effects of various oxidants in cells. The main goal of this study was to investigate antigenotoxic potential of a standardized dry olive leaf extract on DNA damage induced by 17 beta-estradiol and diethylstilbestrol in human whole blood cells in vitro, using comet assay. Our results indicated that both hormones showed a genotoxic effect at a concentration of 100 mu M (P < 0.05, n = 6). Dry olive leaf extract was efficient in reducing number of cells with estrogen-induced DNA damage at tested concentrations (0.125, 0.5 and 1 mg/mL) (P < 0.05, n = 6) and under two experimental protocols, pre-treatment and post-treatment, exhibiting antigenotoxic properties. Analysis of antioxidant properties of the extract revealed moderate ABTS radical scavenging properties and reducing power. Overall, our results suggested that the protective potential of dry olive leaf extract could arise from the synergistic effect of its scavenging activity and enhancement of the cells antioxidant capacity.
PB  - Elsevier, Amsterdam
T2  - Mutation Research-Genetic Toxicology and Environmental Mutagenesis
T1  - Dry olive leaf extract attenuates DNA damage induced by estradiol and diethylstilbestrol in human peripheral blood cells in vitro
VL  - 845
SP  - UNSP 402993
DO  - 10.1016/j.mrgentox.2018.12.001
ER  - 

@article{
author = "Topalović, Dijana and Dekanski, Dragana and Spremo-Potparević, Biljana and Pirković, Andrea and Borozan, Sunčica and Bajić, Vladan and Stojanović, Danilo and Giampieri, Francesca and Gasparrini, Massimiliano and Živković, Lada",
year = "2019",
abstract = "Phenolic groups of steroidal or nonsteroidal estrogens can redox cycle, leading to oxidative stress, where creation of reactive oxygen species are recognized as the main mechanism of their DNA damage properties. Dry olive (Olea europaea L.) leaf extract is known to contain bioactive and antioxidative components and to have an ability to modulate the effects of various oxidants in cells. The main goal of this study was to investigate antigenotoxic potential of a standardized dry olive leaf extract on DNA damage induced by 17 beta-estradiol and diethylstilbestrol in human whole blood cells in vitro, using comet assay. Our results indicated that both hormones showed a genotoxic effect at a concentration of 100 mu M (P < 0.05, n = 6). Dry olive leaf extract was efficient in reducing number of cells with estrogen-induced DNA damage at tested concentrations (0.125, 0.5 and 1 mg/mL) (P < 0.05, n = 6) and under two experimental protocols, pre-treatment and post-treatment, exhibiting antigenotoxic properties. Analysis of antioxidant properties of the extract revealed moderate ABTS radical scavenging properties and reducing power. Overall, our results suggested that the protective potential of dry olive leaf extract could arise from the synergistic effect of its scavenging activity and enhancement of the cells antioxidant capacity.",
publisher = "Elsevier, Amsterdam",
journal = "Mutation Research-Genetic Toxicology and Environmental Mutagenesis",
title = "Dry olive leaf extract attenuates DNA damage induced by estradiol and diethylstilbestrol in human peripheral blood cells in vitro",
volume = "845",
pages = "UNSP 402993",
doi = "10.1016/j.mrgentox.2018.12.001"
}

Topalović, D., Dekanski, D., Spremo-Potparević, B., Pirković, A., Borozan, S., Bajić, V., Stojanović, D., Giampieri, F., Gasparrini, M.,& Živković, L.. (2019). Dry olive leaf extract attenuates DNA damage induced by estradiol and diethylstilbestrol in human peripheral blood cells in vitro. in Mutation Research-Genetic Toxicology and Environmental Mutagenesis
Elsevier, Amsterdam., 845, UNSP 402993.
https://doi.org/10.1016/j.mrgentox.2018.12.001

Topalović D, Dekanski D, Spremo-Potparević B, Pirković A, Borozan S, Bajić V, Stojanović D, Giampieri F, Gasparrini M, Živković L. Dry olive leaf extract attenuates DNA damage induced by estradiol and diethylstilbestrol in human peripheral blood cells in vitro. in Mutation Research-Genetic Toxicology and Environmental Mutagenesis. 2019;845:UNSP 402993.
doi:10.1016/j.mrgentox.2018.12.001 .

Topalović, Dijana, Dekanski, Dragana, Spremo-Potparević, Biljana, Pirković, Andrea, Borozan, Sunčica, Bajić, Vladan, Stojanović, Danilo, Giampieri, Francesca, Gasparrini, Massimiliano, Živković, Lada, "Dry olive leaf extract attenuates DNA damage induced by estradiol and diethylstilbestrol in human peripheral blood cells in vitro" in Mutation Research-Genetic Toxicology and Environmental Mutagenesis, 845 (2019):UNSP 402993,
https://doi.org/10.1016/j.mrgentox.2018.12.001 . .

TY  - JOUR
AU  - Živković, Lada
AU  - Bajić, Vladan
AU  - Bruić, Marija
AU  - Borozan, Sunčica
AU  - Popić, Kristina
AU  - Topalović, Dijana
AU  - Santibanez, Juan Francisco
AU  - Spremo-Potparević, Biljana
PY  - 2019
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1790
AB  - Immune Assist (IA) is produced from extract of six species of medical mushrooms: Agaricus blazei - Cordyceps sinensis - Grifola frondosa - Ganoderma lucidum - Coriolus versicolor - Lentinula edodes. The genoprotective potential of IA was evaluated for the first time. Significant antigenotoxic effects were detected in human peripheral blood cells against H2O2 induced DNA damage, in the pretreatment and in the posttreatment. The most efficient concentration of IA in pretreatment was 500 mu g/mL, while in posttreatment it was the concentration of 250 mu g/mL. Kinetics of attenuation of H2O2 induced DNA damage in posttreatment with the optimal concentration of IA showed significant decrease in the number of damaged cells at all time periods (15-60 min), reaching the greatest reduction after 15 and 45 min. Remarkable center dot OH scavenging properties and moderate reducing power, together with the modest DPPH scavenging activity, could be responsible for the great attenuation of DNA damage after 15 min of exposure to IA, while reduction of DNA damage after 45 min could be the result in additional stimulation of the cells repair machinery. Our results suggest that IA displayed antigenotoxic and antioxidant properties. A broader investigation of its profile in biological systems is needed.
PB  - Elsevier, Amsterdam
T2  - Mutation Research-Genetic Toxicology and Environmental Mutagenesis
T1  - Antigenotoxic and antioxidant potential of medicinal mushrooms (Immune Assist) against DNA damage induced by free radicals-an in vitro study
VL  - 845
SP  - UNSP 403078
DO  - 10.1016/j.mrgentox.2019.06.008
ER  - 

@article{
author = "Živković, Lada and Bajić, Vladan and Bruić, Marija and Borozan, Sunčica and Popić, Kristina and Topalović, Dijana and Santibanez, Juan Francisco and Spremo-Potparević, Biljana",
year = "2019",
abstract = "Immune Assist (IA) is produced from extract of six species of medical mushrooms: Agaricus blazei - Cordyceps sinensis - Grifola frondosa - Ganoderma lucidum - Coriolus versicolor - Lentinula edodes. The genoprotective potential of IA was evaluated for the first time. Significant antigenotoxic effects were detected in human peripheral blood cells against H2O2 induced DNA damage, in the pretreatment and in the posttreatment. The most efficient concentration of IA in pretreatment was 500 mu g/mL, while in posttreatment it was the concentration of 250 mu g/mL. Kinetics of attenuation of H2O2 induced DNA damage in posttreatment with the optimal concentration of IA showed significant decrease in the number of damaged cells at all time periods (15-60 min), reaching the greatest reduction after 15 and 45 min. Remarkable center dot OH scavenging properties and moderate reducing power, together with the modest DPPH scavenging activity, could be responsible for the great attenuation of DNA damage after 15 min of exposure to IA, while reduction of DNA damage after 45 min could be the result in additional stimulation of the cells repair machinery. Our results suggest that IA displayed antigenotoxic and antioxidant properties. A broader investigation of its profile in biological systems is needed.",
publisher = "Elsevier, Amsterdam",
journal = "Mutation Research-Genetic Toxicology and Environmental Mutagenesis",
title = "Antigenotoxic and antioxidant potential of medicinal mushrooms (Immune Assist) against DNA damage induced by free radicals-an in vitro study",
volume = "845",
pages = "UNSP 403078",
doi = "10.1016/j.mrgentox.2019.06.008"
}

Živković, L., Bajić, V., Bruić, M., Borozan, S., Popić, K., Topalović, D., Santibanez, J. F.,& Spremo-Potparević, B.. (2019). Antigenotoxic and antioxidant potential of medicinal mushrooms (Immune Assist) against DNA damage induced by free radicals-an in vitro study. in Mutation Research-Genetic Toxicology and Environmental Mutagenesis
Elsevier, Amsterdam., 845, UNSP 403078.
https://doi.org/10.1016/j.mrgentox.2019.06.008

Živković L, Bajić V, Bruić M, Borozan S, Popić K, Topalović D, Santibanez JF, Spremo-Potparević B. Antigenotoxic and antioxidant potential of medicinal mushrooms (Immune Assist) against DNA damage induced by free radicals-an in vitro study. in Mutation Research-Genetic Toxicology and Environmental Mutagenesis. 2019;845:UNSP 403078.
doi:10.1016/j.mrgentox.2019.06.008 .

Živković, Lada, Bajić, Vladan, Bruić, Marija, Borozan, Sunčica, Popić, Kristina, Topalović, Dijana, Santibanez, Juan Francisco, Spremo-Potparević, Biljana, "Antigenotoxic and antioxidant potential of medicinal mushrooms (Immune Assist) against DNA damage induced by free radicals-an in vitro study" in Mutation Research-Genetic Toxicology and Environmental Mutagenesis, 845 (2019):UNSP 403078,
https://doi.org/10.1016/j.mrgentox.2019.06.008 . .

TY  - JOUR
AU  - Živković, Lada
AU  - Borozan, Sunčica
AU  - Bajić, Vladan
AU  - Đorđević, Stefana
AU  - Hristov, Aleksandar
AU  - Spremo-Potparević, Biljana
PY  - 2019
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1710
AB  - Objective. Prooxidants and antioxidants affect the oxidative balance at the intracellular level. Oxidative stress is a consequence of the overproduction of prooxidants and is caused by disturbances in the balance of oxidative reduction processes. Non-enzymatic low molecular weight antioxidants can be introduced into the body through food. Cordyceps sinensis (C. sinensis) is a medicinal fungus used in traditional Chinese medicine, with rich content of vitamins, various polysaccharides, and many nucleosides. The aim of this study is to evaluate the antioxidant capacity of the dietary supplement C. sinensis. Methods. The capacity of the hydroxyl radical scavenger activity, the total antioxidant activity of FRAP (Ferric Reducing Antioxidant Power) and the DPPH (2,2-diphenyl-1picrylhydrazyl) scavenger activity were measured. Results. C. sinensis at the tested concentrations of 0.0078-2.00 mg/mL had a pronounced ability to remove hydroxyl radicals with IC50 of 0.5 mg/mL, while at concentrations (0.0078-10.00 mg / mL) it showed a moderate reducing ability. C sinensis showed no ability to remove DPPH radicals. Conclusion. C. sinensis effectively removes hydroxyl radicals, for which the body does not have adequate antioxidant protection, so we can include it in the group of free radical scavengers.
AB  - Cilj. Prooksidansi i antioksidansi utiču na oksidativnu ravnotežu na intracelularnom nivou. Oksidativni stres je posledica prekomerne produkcije prooksidanasa i nastaje usled poremećaja u ravnoteži oksido-redukcionih procesa. Neenzimski antioksidansi male molekulske mase mogu se uneti u organizam preko hrane. Cordyceps sinensis (C. sinensis) lekovita je gljiva koja se koristi u tradicionalnoj kineskoj medicini, ima bogat sadržaj vitamina, raznih polisaharida, kao i mnogih nukleozida. Cilj istraživanja ove studije bila je evaluacija antioksidativnog kapaciteta dijetetskog suplementa C. sinensis. Metode. Mereni su kapacitet "skevindžer" aktivnosti hidroksil radikala, ukupna antioksidativna aktivnost primenom FRAP (Ferric Reducing Antioxidant Power) metode i DPPH (2,2-difenil-1-pikrilhidrazil) - skevindžer aktivnost. Rezultati. C. sinensis je u ispitivanim koncentracijama 0,0078-2,00 mg/mL imao izraženu sposobnost uklanjanja hidroskil radikala, čija je IC50 iznosila 0,5 mg/mL, dok je u koncentracijama 0,0078-10,00 mg/mL pokazao umerenu redukcionu sposobnost. C. sinensis nije pokazao sposobnost uklanjanja DPPH radikala. Zaključak. C. sinensis efikasno neutrališe hidroksilne radikale, za koje organizam nema adekvatnu antioksidativnu zaštitu pa ga možemo uvrstiti u grupu potencijalnih protektora od slobodnih radikala.
PB  - Srpsko lekarsko društvo - Okružna podružnica Kragujevac, Kragujevac
T2  - Medicinski časopis
T1  - Evaluation of antioxidant potential of Cordyceps sinensis in vitro
T1  - Evaluacija antioksidativnog potencijala gljive Cordyceps sinensis in vitro
VL  - 53
IS  - 4
SP  - 129
EP  - 134
DO  - 10.5937/mckg53-24450
ER  - 

@article{
author = "Živković, Lada and Borozan, Sunčica and Bajić, Vladan and Đorđević, Stefana and Hristov, Aleksandar and Spremo-Potparević, Biljana",
year = "2019",
abstract = "Objective. Prooxidants and antioxidants affect the oxidative balance at the intracellular level. Oxidative stress is a consequence of the overproduction of prooxidants and is caused by disturbances in the balance of oxidative reduction processes. Non-enzymatic low molecular weight antioxidants can be introduced into the body through food. Cordyceps sinensis (C. sinensis) is a medicinal fungus used in traditional Chinese medicine, with rich content of vitamins, various polysaccharides, and many nucleosides. The aim of this study is to evaluate the antioxidant capacity of the dietary supplement C. sinensis. Methods. The capacity of the hydroxyl radical scavenger activity, the total antioxidant activity of FRAP (Ferric Reducing Antioxidant Power) and the DPPH (2,2-diphenyl-1picrylhydrazyl) scavenger activity were measured. Results. C. sinensis at the tested concentrations of 0.0078-2.00 mg/mL had a pronounced ability to remove hydroxyl radicals with IC50 of 0.5 mg/mL, while at concentrations (0.0078-10.00 mg / mL) it showed a moderate reducing ability. C sinensis showed no ability to remove DPPH radicals. Conclusion. C. sinensis effectively removes hydroxyl radicals, for which the body does not have adequate antioxidant protection, so we can include it in the group of free radical scavengers., Cilj. Prooksidansi i antioksidansi utiču na oksidativnu ravnotežu na intracelularnom nivou. Oksidativni stres je posledica prekomerne produkcije prooksidanasa i nastaje usled poremećaja u ravnoteži oksido-redukcionih procesa. Neenzimski antioksidansi male molekulske mase mogu se uneti u organizam preko hrane. Cordyceps sinensis (C. sinensis) lekovita je gljiva koja se koristi u tradicionalnoj kineskoj medicini, ima bogat sadržaj vitamina, raznih polisaharida, kao i mnogih nukleozida. Cilj istraživanja ove studije bila je evaluacija antioksidativnog kapaciteta dijetetskog suplementa C. sinensis. Metode. Mereni su kapacitet "skevindžer" aktivnosti hidroksil radikala, ukupna antioksidativna aktivnost primenom FRAP (Ferric Reducing Antioxidant Power) metode i DPPH (2,2-difenil-1-pikrilhidrazil) - skevindžer aktivnost. Rezultati. C. sinensis je u ispitivanim koncentracijama 0,0078-2,00 mg/mL imao izraženu sposobnost uklanjanja hidroskil radikala, čija je IC50 iznosila 0,5 mg/mL, dok je u koncentracijama 0,0078-10,00 mg/mL pokazao umerenu redukcionu sposobnost. C. sinensis nije pokazao sposobnost uklanjanja DPPH radikala. Zaključak. C. sinensis efikasno neutrališe hidroksilne radikale, za koje organizam nema adekvatnu antioksidativnu zaštitu pa ga možemo uvrstiti u grupu potencijalnih protektora od slobodnih radikala.",
publisher = "Srpsko lekarsko društvo - Okružna podružnica Kragujevac, Kragujevac",
journal = "Medicinski časopis",
title = "Evaluation of antioxidant potential of Cordyceps sinensis in vitro, Evaluacija antioksidativnog potencijala gljive Cordyceps sinensis in vitro",
volume = "53",
number = "4",
pages = "129-134",
doi = "10.5937/mckg53-24450"
}

Živković, L., Borozan, S., Bajić, V., Đorđević, S., Hristov, A.,& Spremo-Potparević, B.. (2019). Evaluation of antioxidant potential of Cordyceps sinensis in vitro. in Medicinski časopis
Srpsko lekarsko društvo - Okružna podružnica Kragujevac, Kragujevac., 53(4), 129-134.
https://doi.org/10.5937/mckg53-24450

Živković L, Borozan S, Bajić V, Đorđević S, Hristov A, Spremo-Potparević B. Evaluation of antioxidant potential of Cordyceps sinensis in vitro. in Medicinski časopis. 2019;53(4):129-134.
doi:10.5937/mckg53-24450 .

Živković, Lada, Borozan, Sunčica, Bajić, Vladan, Đorđević, Stefana, Hristov, Aleksandar, Spremo-Potparević, Biljana, "Evaluation of antioxidant potential of Cordyceps sinensis in vitro" in Medicinski časopis, 53, no. 4 (2019):129-134,
https://doi.org/10.5937/mckg53-24450 . .

TY  - JOUR
AU  - Topalović, Dijana
AU  - Dekanski, Dragana
AU  - Spremo-Potparević, Biljana
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Živković, Lada
PY  - 2018
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1619
AB  - Harmful effects of elevated levels of catecholamines are mediated by various mechanisms, including gene transcription and formation of oxidation products. The aim of this study was to see whether the molecular mechanisms underlying the damaging action of adrenaline on DNA are mediated by reactive oxygen species (ROS). To do that, we exposed human whole blood cells to 10 mu mol L-1 adrenaline or 50 mu mol L-1 H2O2 (used as positive control) that were separately pre-treated or post-treated with 500 mu mol L-1 of quercetin, a scavenger of free radicals. Quercetin significantly reduced DNA damage in both pre- and post-treatment protocols, which suggests that adrenaline mainly acts via the production of ROS. This mechanism is also supported by gradual lowering of adrenaline and H2O2-induced DNA damage 15, 30, 45, and 60 min after treatment. Our results clearly show that DNA repair mechanisms are rather effective against ROS-mediated DNA damage induced by adrenaline.
PB  - Inst Medical Research & Occupational Health, Zagreb
T2  - Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology
T1  - Assessment of adrenaline-induced DNA damage in whole blood cells with the comet assay
VL  - 69
IS  - 4
SP  - 304
EP  - 308
DO  - 10.2478/aiht-2018-69-3154
ER  - 

@article{
author = "Topalović, Dijana and Dekanski, Dragana and Spremo-Potparević, Biljana and Đelić, Ninoslav and Bajić, Vladan and Živković, Lada",
year = "2018",
abstract = "Harmful effects of elevated levels of catecholamines are mediated by various mechanisms, including gene transcription and formation of oxidation products. The aim of this study was to see whether the molecular mechanisms underlying the damaging action of adrenaline on DNA are mediated by reactive oxygen species (ROS). To do that, we exposed human whole blood cells to 10 mu mol L-1 adrenaline or 50 mu mol L-1 H2O2 (used as positive control) that were separately pre-treated or post-treated with 500 mu mol L-1 of quercetin, a scavenger of free radicals. Quercetin significantly reduced DNA damage in both pre- and post-treatment protocols, which suggests that adrenaline mainly acts via the production of ROS. This mechanism is also supported by gradual lowering of adrenaline and H2O2-induced DNA damage 15, 30, 45, and 60 min after treatment. Our results clearly show that DNA repair mechanisms are rather effective against ROS-mediated DNA damage induced by adrenaline.",
publisher = "Inst Medical Research & Occupational Health, Zagreb",
journal = "Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology",
title = "Assessment of adrenaline-induced DNA damage in whole blood cells with the comet assay",
volume = "69",
number = "4",
pages = "304-308",
doi = "10.2478/aiht-2018-69-3154"
}

Topalović, D., Dekanski, D., Spremo-Potparević, B., Đelić, N., Bajić, V.,& Živković, L.. (2018). Assessment of adrenaline-induced DNA damage in whole blood cells with the comet assay. in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology
Inst Medical Research & Occupational Health, Zagreb., 69(4), 304-308.
https://doi.org/10.2478/aiht-2018-69-3154

Topalović D, Dekanski D, Spremo-Potparević B, Đelić N, Bajić V, Živković L. Assessment of adrenaline-induced DNA damage in whole blood cells with the comet assay. in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology. 2018;69(4):304-308.
doi:10.2478/aiht-2018-69-3154 .

Topalović, Dijana, Dekanski, Dragana, Spremo-Potparević, Biljana, Đelić, Ninoslav, Bajić, Vladan, Živković, Lada, "Assessment of adrenaline-induced DNA damage in whole blood cells with the comet assay" in Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology, 69, no. 4 (2018):304-308,
https://doi.org/10.2478/aiht-2018-69-3154 . .

TY  - JOUR
AU  - Živković, Lada
AU  - Borozan, Sunčica
AU  - Čabarkapa, Andrea
AU  - Topalović, Dijana
AU  - Ciptasari, Ummi
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2017
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1501
AB  - The ability of Agaricus blazei mushroom in its dried and powdered mycelial form was evaluated for its antigenotoxic properties for the first time. Antigenotoxic effects in human peripheral blood cells against H2O2-induced DNA damage were examined in pretreatment and posttreatment protocol by comet assay. The results showed better antigenotoxic properties of Agaricus blazei on the interventional level, respectively, after treatment. Agaricus blazei in concentration of 250 mu g/mL after treatment was most efficient in regard to its action against DNA damage. The evaluation of repair kinetics showed decrease in H2O2 induced DNA damage 15min after the application of A. blazei, reaching the maximum potency after 30 min. Analysis of antioxidant properties of Agaricus blazei revealed strong center dot OH scavenging properties and moderate reducing power, while its DPPH scavenging ability was weak. In regard to our findings, we can conclude that our preliminary results demonstrated antigenotoxic properties of Agaricus blazei and its strong center dot OH scavenging ability. Mechanisms underlying its properties should be further evaluated in in vivo studies.
PB  - Hindawi Ltd, London
T2  - Oxidative Medicine and Cellular Longevity
T1  - Antigenotoxic Properties of Agaricus blazei against Hydrogen Peroxide in Human Peripheral Blood Cells
VL  - 2017
SP  - 8759764
DO  - 10.1155/2017/8759764
ER  - 

@article{
author = "Živković, Lada and Borozan, Sunčica and Čabarkapa, Andrea and Topalović, Dijana and Ciptasari, Ummi and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2017",
abstract = "The ability of Agaricus blazei mushroom in its dried and powdered mycelial form was evaluated for its antigenotoxic properties for the first time. Antigenotoxic effects in human peripheral blood cells against H2O2-induced DNA damage were examined in pretreatment and posttreatment protocol by comet assay. The results showed better antigenotoxic properties of Agaricus blazei on the interventional level, respectively, after treatment. Agaricus blazei in concentration of 250 mu g/mL after treatment was most efficient in regard to its action against DNA damage. The evaluation of repair kinetics showed decrease in H2O2 induced DNA damage 15min after the application of A. blazei, reaching the maximum potency after 30 min. Analysis of antioxidant properties of Agaricus blazei revealed strong center dot OH scavenging properties and moderate reducing power, while its DPPH scavenging ability was weak. In regard to our findings, we can conclude that our preliminary results demonstrated antigenotoxic properties of Agaricus blazei and its strong center dot OH scavenging ability. Mechanisms underlying its properties should be further evaluated in in vivo studies.",
publisher = "Hindawi Ltd, London",
journal = "Oxidative Medicine and Cellular Longevity",
title = "Antigenotoxic Properties of Agaricus blazei against Hydrogen Peroxide in Human Peripheral Blood Cells",
volume = "2017",
pages = "8759764",
doi = "10.1155/2017/8759764"
}

Živković, L., Borozan, S., Čabarkapa, A., Topalović, D., Ciptasari, U., Bajić, V.,& Spremo-Potparević, B.. (2017). Antigenotoxic Properties of Agaricus blazei against Hydrogen Peroxide in Human Peripheral Blood Cells. in Oxidative Medicine and Cellular Longevity
Hindawi Ltd, London., 2017, 8759764.
https://doi.org/10.1155/2017/8759764

Živković L, Borozan S, Čabarkapa A, Topalović D, Ciptasari U, Bajić V, Spremo-Potparević B. Antigenotoxic Properties of Agaricus blazei against Hydrogen Peroxide in Human Peripheral Blood Cells. in Oxidative Medicine and Cellular Longevity. 2017;2017:8759764.
doi:10.1155/2017/8759764 .

Živković, Lada, Borozan, Sunčica, Čabarkapa, Andrea, Topalović, Dijana, Ciptasari, Ummi, Bajić, Vladan, Spremo-Potparević, Biljana, "Antigenotoxic Properties of Agaricus blazei against Hydrogen Peroxide in Human Peripheral Blood Cells" in Oxidative Medicine and Cellular Longevity, 2017 (2017):8759764,
https://doi.org/10.1155/2017/8759764 . .

TY  - CONF
AU  - Radaković, Milena
AU  - Borozan, Sunčica
AU  - Đelić, Ninoslav
AU  - Ivanović, Saša
AU  - Spremo-Potparević, Biljana
AU  - Živković, Lada
AU  - Stanimirović, Zoran
PY  - 2016
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2717
AB  - The catecholamines have always attracted interest for investigation due to physiological
and pathological effects. This study aims to point on biochemical endpoints of toxic
effects after administration of adrenaline. For this purpose the study was carried out on
Wistar rats and three experimental doses of adrenaline were used: 0.75 mg/kg, 1.5
mg/kg and 3 mg/kg.
We investigated the effects of adrenaline on total activity of lactate dehydrogenase
(LDH), carbonyl groups using spectrophotometric methods, concentrations of nitrite by
ELISA test and nitrotyrosine by Western blotting and SDS-PAGE. The level of acute
phase proteins (APPs) on alkaline-PAGE, alpha-1-acid glycoprotein and haptoglobulin
by Western blot and SDS-PAGE treated with adrenaline was also determined. The
obtained results revealed that all doses of adrenaline induced significant rise in total
activity of LDH and concentrations of carbonyl groups compared to control.
Accordingly, adrenaline exerted significant increase in concentration of nitrite and
nitrotyrosine derivate in a dose dependent manner. Further study indicated that
adrenaline significantly decreased serum albumine level and albumin-globulin ratio,
while the APPs level is increased (alpha-1-acid glycoprotein and haptoglobulin). Based
on the results it can be concluded that adrenaline causes significant alterations in APPs
and increased protein oxidative damage, which may contribute to better understanding
its toxic effects.
C3  - 3rd International Conference of Environmental and Occupational Health, Porto, 21-23 June 2016
T1  - Protein oxidative damage and level of acute phase proteins in wistar rats treated with adrenaline
IS  - 71
EP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_2717
ER  - 

@conference{
author = "Radaković, Milena and Borozan, Sunčica and Đelić, Ninoslav and Ivanović, Saša and Spremo-Potparević, Biljana and Živković, Lada and Stanimirović, Zoran",
year = "2016",
abstract = "The catecholamines have always attracted interest for investigation due to physiological
and pathological effects. This study aims to point on biochemical endpoints of toxic
effects after administration of adrenaline. For this purpose the study was carried out on
Wistar rats and three experimental doses of adrenaline were used: 0.75 mg/kg, 1.5
mg/kg and 3 mg/kg.
We investigated the effects of adrenaline on total activity of lactate dehydrogenase
(LDH), carbonyl groups using spectrophotometric methods, concentrations of nitrite by
ELISA test and nitrotyrosine by Western blotting and SDS-PAGE. The level of acute
phase proteins (APPs) on alkaline-PAGE, alpha-1-acid glycoprotein and haptoglobulin
by Western blot and SDS-PAGE treated with adrenaline was also determined. The
obtained results revealed that all doses of adrenaline induced significant rise in total
activity of LDH and concentrations of carbonyl groups compared to control.
Accordingly, adrenaline exerted significant increase in concentration of nitrite and
nitrotyrosine derivate in a dose dependent manner. Further study indicated that
adrenaline significantly decreased serum albumine level and albumin-globulin ratio,
while the APPs level is increased (alpha-1-acid glycoprotein and haptoglobulin). Based
on the results it can be concluded that adrenaline causes significant alterations in APPs
and increased protein oxidative damage, which may contribute to better understanding
its toxic effects.",
journal = "3rd International Conference of Environmental and Occupational Health, Porto, 21-23 June 2016",
title = "Protein oxidative damage and level of acute phase proteins in wistar rats treated with adrenaline",
number = "71",
pages = "71",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_2717"
}

Radaković, M., Borozan, S., Đelić, N., Ivanović, S., Spremo-Potparević, B., Živković, L.,& Stanimirović, Z.. (2016). Protein oxidative damage and level of acute phase proteins in wistar rats treated with adrenaline. in 3rd International Conference of Environmental and Occupational Health, Porto, 21-23 June 2016(71).
https://hdl.handle.net/21.15107/rcub_veterinar_2717

Radaković M, Borozan S, Đelić N, Ivanović S, Spremo-Potparević B, Živković L, Stanimirović Z. Protein oxidative damage and level of acute phase proteins in wistar rats treated with adrenaline. in 3rd International Conference of Environmental and Occupational Health, Porto, 21-23 June 2016. 2016;(71):null-71.
https://hdl.handle.net/21.15107/rcub_veterinar_2717 .

Radaković, Milena, Borozan, Sunčica, Đelić, Ninoslav, Ivanović, Saša, Spremo-Potparević, Biljana, Živković, Lada, Stanimirović, Zoran, "Protein oxidative damage and level of acute phase proteins in wistar rats treated with adrenaline" in 3rd International Conference of Environmental and Occupational Health, Porto, 21-23 June 2016, no. 71 (2016),
https://hdl.handle.net/21.15107/rcub_veterinar_2717 .

TY  - JOUR
AU  - Vasiljević, Jovana
AU  - Živković, Lada
AU  - Čabarkapa, Andrea
AU  - Bajić, Vladan
AU  - Đelić, Ninoslav
AU  - Spremo-Potparević, Biljana
PY  - 2016
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1429
AB  - Context • Cordyceps sinensis (C sinensis) is a well-known, traditional, Chinese medicinal mushroom, valued for its beneficial properties for human health. C sinensis has been reported to have immunomodulatory, anticancer, antiaging, antioxidant and anti-inflammatory activity. Despite potential medicinal benefits, no previously published reports are available about the genotoxicity or antigenotoxicity of C sinensis, as detected by comet assay. Objective • The objective of the study was to evaluate both the genotoxic and antigenotoxic potential of an extract of C sinensis (CS extract) in human peripheral blood cells. Design • The research team designed a pilot study. Setting •The study was conducted at the Center for Biological Research, University of Belgrade, in Belgrade, Serbia. Participants • Participants were 6 healthy individuals (2 males and 4 females), between the ages of 20 and 45 y, recruited on a voluntary basis, who provided heparinized, peripheral blood samples. Intervention • Four concentrations of the CS extract— 125 μg/mL, 250 μg/mL, 500 μg/mL, and 1000 μg/mL—were used in the treatment of tested blood cells from the blood samples. Three independent procedures were performed: (1) a genotoxicity assessment, (2) an antigenotoxicity assessment for pretreatment of human cells with the CS extract prior to their exposure to hydrogen peroxide (H2O2) (ie, an evaluation of the benefits of the CS extract as a preventive agent); and (3) posttreatment of human cells with the CS extract after their exposure to H2O2 (ie, an evaluation of the benefits of the CS extract as an interventional agent). Outcome Measures • Cells were graded by eye inspection into 5 classes, depending on the extent of DNA damage, representing: (1) class A—undamaged cells with no tail (<5% damaged DNA); (2) class B—low-level damage (5%-20%); (3) class C—medium-level damage (20%-40%); (4) class D—high-level damage (40%-95%), and (5) class E—total destruction (>95%). Results • The CS extract proved to be nongenotoxic because no induced DNA damage was detected at all tested concentrations. For the antigenotoxicity assessment of the pretreatment with the CS extract, only the 1000-μg/mL concentration showed a significant decrease in the number of cells exhibiting H2O2-induced DNA damage. For the posttreatment, the CS extract exhibited antigenotoxic potential by attenuating H2O2-induced DNA damage at all concentrations tested. The evaluation of repair kinetics showed a decrease in DNA-damaged cells 15 min after the application of the CS extract, reaching a maximum potency after 45 min. Conclusions • The results indicated that C sinensis can be used as a postapplicative agent that counteracts the effect of oxidative stress. The resulting reduction in DNA damage might be related to its scavenging properties and stimulation of DNA repair.
PB  - Innovision Communications, Aliso Viejo
T2  - Alternative Therapies in Health and Medicine
T1  - Cordyceps sinensis: Genotoxic potential in human peripheral blood cells and antigenotoxic properties against hydrogen peroxide by comet assay
VL  - 22
SP  - 24
EP  - 31
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_1429
ER  - 

@article{
author = "Vasiljević, Jovana and Živković, Lada and Čabarkapa, Andrea and Bajić, Vladan and Đelić, Ninoslav and Spremo-Potparević, Biljana",
year = "2016",
abstract = "Context • Cordyceps sinensis (C sinensis) is a well-known, traditional, Chinese medicinal mushroom, valued for its beneficial properties for human health. C sinensis has been reported to have immunomodulatory, anticancer, antiaging, antioxidant and anti-inflammatory activity. Despite potential medicinal benefits, no previously published reports are available about the genotoxicity or antigenotoxicity of C sinensis, as detected by comet assay. Objective • The objective of the study was to evaluate both the genotoxic and antigenotoxic potential of an extract of C sinensis (CS extract) in human peripheral blood cells. Design • The research team designed a pilot study. Setting •The study was conducted at the Center for Biological Research, University of Belgrade, in Belgrade, Serbia. Participants • Participants were 6 healthy individuals (2 males and 4 females), between the ages of 20 and 45 y, recruited on a voluntary basis, who provided heparinized, peripheral blood samples. Intervention • Four concentrations of the CS extract— 125 μg/mL, 250 μg/mL, 500 μg/mL, and 1000 μg/mL—were used in the treatment of tested blood cells from the blood samples. Three independent procedures were performed: (1) a genotoxicity assessment, (2) an antigenotoxicity assessment for pretreatment of human cells with the CS extract prior to their exposure to hydrogen peroxide (H2O2) (ie, an evaluation of the benefits of the CS extract as a preventive agent); and (3) posttreatment of human cells with the CS extract after their exposure to H2O2 (ie, an evaluation of the benefits of the CS extract as an interventional agent). Outcome Measures • Cells were graded by eye inspection into 5 classes, depending on the extent of DNA damage, representing: (1) class A—undamaged cells with no tail (<5% damaged DNA); (2) class B—low-level damage (5%-20%); (3) class C—medium-level damage (20%-40%); (4) class D—high-level damage (40%-95%), and (5) class E—total destruction (>95%). Results • The CS extract proved to be nongenotoxic because no induced DNA damage was detected at all tested concentrations. For the antigenotoxicity assessment of the pretreatment with the CS extract, only the 1000-μg/mL concentration showed a significant decrease in the number of cells exhibiting H2O2-induced DNA damage. For the posttreatment, the CS extract exhibited antigenotoxic potential by attenuating H2O2-induced DNA damage at all concentrations tested. The evaluation of repair kinetics showed a decrease in DNA-damaged cells 15 min after the application of the CS extract, reaching a maximum potency after 45 min. Conclusions • The results indicated that C sinensis can be used as a postapplicative agent that counteracts the effect of oxidative stress. The resulting reduction in DNA damage might be related to its scavenging properties and stimulation of DNA repair.",
publisher = "Innovision Communications, Aliso Viejo",
journal = "Alternative Therapies in Health and Medicine",
title = "Cordyceps sinensis: Genotoxic potential in human peripheral blood cells and antigenotoxic properties against hydrogen peroxide by comet assay",
volume = "22",
pages = "24-31",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_1429"
}

Vasiljević, J., Živković, L., Čabarkapa, A., Bajić, V., Đelić, N.,& Spremo-Potparević, B.. (2016). Cordyceps sinensis: Genotoxic potential in human peripheral blood cells and antigenotoxic properties against hydrogen peroxide by comet assay. in Alternative Therapies in Health and Medicine
Innovision Communications, Aliso Viejo., 22, 24-31.
https://hdl.handle.net/21.15107/rcub_veterinar_1429

Vasiljević J, Živković L, Čabarkapa A, Bajić V, Đelić N, Spremo-Potparević B. Cordyceps sinensis: Genotoxic potential in human peripheral blood cells and antigenotoxic properties against hydrogen peroxide by comet assay. in Alternative Therapies in Health and Medicine. 2016;22:24-31.
https://hdl.handle.net/21.15107/rcub_veterinar_1429 .

Vasiljević, Jovana, Živković, Lada, Čabarkapa, Andrea, Bajić, Vladan, Đelić, Ninoslav, Spremo-Potparević, Biljana, "Cordyceps sinensis: Genotoxic potential in human peripheral blood cells and antigenotoxic properties against hydrogen peroxide by comet assay" in Alternative Therapies in Health and Medicine, 22 (2016):24-31,
https://hdl.handle.net/21.15107/rcub_veterinar_1429 .

TY  - JOUR
AU  - Jović, Slavoljub
AU  - Ćupić, Vitomir
AU  - Ristić, Gordana
AU  - Vakanjac, Slobodanka
AU  - Dimitrijević, Blagoje
AU  - Ćupić Miladinović, Dejana
AU  - Živković, Lada
PY  - 2016
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1337
AB  - The objective of this work was to investigate the influence of the day of farrowing induction on the number of newborn piglets (live born and dead born), body mass and mortality of neonatal pigs in litter by the tenth day of age. For the investigation purpose, there were chosen 167 pregnant animals, 34 gilts and 133 sows, divided into 3 groups each, according to the day of pregnancy when prostaglandin analogue, dinoprost-tromethamine, was applied (from 112th to 114th day). Fastest-induced parturition was in gilts which were administered dinoprost on the 113th day of pregnancy, (34,30 ± 6,23) h after application, that is, in sows which were administered prostaglandin on the 114th day of pregnancy, (29,57 ± 4,14) h after application of dinoprost. Most gilts (75 %) and sows (90,91%) started farrowing 24-36 h after dinoprost application, when it was given on the 113th day of pregnancy. During daily twelve-hour working time (7-19 h), 67,07% out of all the treated animals started farrowing. When farrowing was induced on the 112th day of pregnancy, 17 sows (12,78%) needed obstetric assistance for dystocia, while 47 (35,34 %) sows had troublesome farrowing. Along with the delayed induction, body mass of newborn pigs increased, and the largest recorded weight was 1,27 kg in sows, that is 1,38 kg in gilts, which were given dinoprost on the 114th day of pregnancy, with the lowest number of live born pigs of body mass less than 1 kg (23,76%). In this experiment there was determined the connection between the body mass and vitality of newborn piglets, so the lowest mortality rate of the pigs by the 10th day of age was noticed in sows and gilts which were given dinoprost on the 114th day of pregnancy (11,05%), in regard to the pigs born of sows and gilts which were given dinoprost on the 112th day of pregnancy (15,39 %).
AB  - Cilj ovog rada bio je da se ispita uticaj izbora dana indukcije prašenja na broj novorođene prasadi (živo i mrtvorođene), telesnu masu i mortalitet neonatalne prasadi u leglu do 10. dana starosti. Za ispitivanje je izabrano 167 gravidnih životinja, 34 nazimica i 133 krmača, podeljenih u po 3 grupe, prema danu graviditeta kada je aplikovan analog prostaglandina, dinoprost-trometamin (od 112­114. dana). Najbrže je indukovan partus kod nazimica kojima je aplikovan dinoprost 113. dana graviditeta (34,30 ± 6,23) h nakon aplikacije, odnosno kod krmača kojima je aplikovan prostaglandin 114. dana graviditeta (29,57 ± 4,14) h nakon aplikacije dinoprosta. Najviše nazimica (75 %) i krmača (90,91%) započelo je prašenje 24-36 h nakon aplikacije dinoprosta, kada je on aplikovan 113. dana graviditeta. U toku dnevnog dvanaestočasovnog radnog vremena (7-19 h) započelo je prašenje 67,07% od ukupno tretiranih životinja. Kada je indukovano prašenje na 112 dan graviditeta 17 krmača (12,78%) zahtevalo je akušersku pomoć zbog distocije, dok je od ukupnog broja krmača 47 (35,34 %) bilo sa problematičnim prašenjem. Sa odlaganjem indukcije rasla je telesna masa novorođene prasadi, pri čemu je najveća zabeležena iznosila 1,27 kg kod krmača, odnosno 1,38 kg kod nazimica, kojima je dinoprost aplikovan 114. dana graviditeta, sa najmanje živorođene prasadi telesne mase ispod 1 kg (23,76%). U ogledu je utvrđena povezanost telesne mase sa vitalnošću novorođene prasadi, tako da je najmanja stopa smrtnosti prasadi do 10. dana života, zabeležena kod krmača i nazimica kojima je dinoprost aplikovan 114. dana graviditeta (11,05%), u odnosu na prasad rođenu kod krmača i nazimica kojima je dinoprost aplikovan 112. dana graviditeta (15,39%).
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Veterinarski Glasnik
T1  - The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days
T1  - Vlijanie indukcii oporosa na živoroždenie, massu tela, vozniknovenie distocii, smertnost' i vyživanie novoroždennyh porosjat v pervye desjat' dnej
T1  - Uticaj indukcije prašenja na živorođenost, telesnu masu, pojavu distocije, mortalitet i preživljavanje neonatalne prasadi u leglu u prvih deset dana
VL  - 70
IS  - 1-2
SP  - 13
EP  - 29
DO  - 10.2298/VETGL1602013J
ER  - 

@article{
author = "Jović, Slavoljub and Ćupić, Vitomir and Ristić, Gordana and Vakanjac, Slobodanka and Dimitrijević, Blagoje and Ćupić Miladinović, Dejana and Živković, Lada",
year = "2016",
abstract = "The objective of this work was to investigate the influence of the day of farrowing induction on the number of newborn piglets (live born and dead born), body mass and mortality of neonatal pigs in litter by the tenth day of age. For the investigation purpose, there were chosen 167 pregnant animals, 34 gilts and 133 sows, divided into 3 groups each, according to the day of pregnancy when prostaglandin analogue, dinoprost-tromethamine, was applied (from 112th to 114th day). Fastest-induced parturition was in gilts which were administered dinoprost on the 113th day of pregnancy, (34,30 ± 6,23) h after application, that is, in sows which were administered prostaglandin on the 114th day of pregnancy, (29,57 ± 4,14) h after application of dinoprost. Most gilts (75 %) and sows (90,91%) started farrowing 24-36 h after dinoprost application, when it was given on the 113th day of pregnancy. During daily twelve-hour working time (7-19 h), 67,07% out of all the treated animals started farrowing. When farrowing was induced on the 112th day of pregnancy, 17 sows (12,78%) needed obstetric assistance for dystocia, while 47 (35,34 %) sows had troublesome farrowing. Along with the delayed induction, body mass of newborn pigs increased, and the largest recorded weight was 1,27 kg in sows, that is 1,38 kg in gilts, which were given dinoprost on the 114th day of pregnancy, with the lowest number of live born pigs of body mass less than 1 kg (23,76%). In this experiment there was determined the connection between the body mass and vitality of newborn piglets, so the lowest mortality rate of the pigs by the 10th day of age was noticed in sows and gilts which were given dinoprost on the 114th day of pregnancy (11,05%), in regard to the pigs born of sows and gilts which were given dinoprost on the 112th day of pregnancy (15,39 %)., Cilj ovog rada bio je da se ispita uticaj izbora dana indukcije prašenja na broj novorođene prasadi (živo i mrtvorođene), telesnu masu i mortalitet neonatalne prasadi u leglu do 10. dana starosti. Za ispitivanje je izabrano 167 gravidnih životinja, 34 nazimica i 133 krmača, podeljenih u po 3 grupe, prema danu graviditeta kada je aplikovan analog prostaglandina, dinoprost-trometamin (od 112­114. dana). Najbrže je indukovan partus kod nazimica kojima je aplikovan dinoprost 113. dana graviditeta (34,30 ± 6,23) h nakon aplikacije, odnosno kod krmača kojima je aplikovan prostaglandin 114. dana graviditeta (29,57 ± 4,14) h nakon aplikacije dinoprosta. Najviše nazimica (75 %) i krmača (90,91%) započelo je prašenje 24-36 h nakon aplikacije dinoprosta, kada je on aplikovan 113. dana graviditeta. U toku dnevnog dvanaestočasovnog radnog vremena (7-19 h) započelo je prašenje 67,07% od ukupno tretiranih životinja. Kada je indukovano prašenje na 112 dan graviditeta 17 krmača (12,78%) zahtevalo je akušersku pomoć zbog distocije, dok je od ukupnog broja krmača 47 (35,34 %) bilo sa problematičnim prašenjem. Sa odlaganjem indukcije rasla je telesna masa novorođene prasadi, pri čemu je najveća zabeležena iznosila 1,27 kg kod krmača, odnosno 1,38 kg kod nazimica, kojima je dinoprost aplikovan 114. dana graviditeta, sa najmanje živorođene prasadi telesne mase ispod 1 kg (23,76%). U ogledu je utvrđena povezanost telesne mase sa vitalnošću novorođene prasadi, tako da je najmanja stopa smrtnosti prasadi do 10. dana života, zabeležena kod krmača i nazimica kojima je dinoprost aplikovan 114. dana graviditeta (11,05%), u odnosu na prasad rođenu kod krmača i nazimica kojima je dinoprost aplikovan 112. dana graviditeta (15,39%).",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Veterinarski Glasnik",
title = "The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days, Vlijanie indukcii oporosa na živoroždenie, massu tela, vozniknovenie distocii, smertnost' i vyživanie novoroždennyh porosjat v pervye desjat' dnej, Uticaj indukcije prašenja na živorođenost, telesnu masu, pojavu distocije, mortalitet i preživljavanje neonatalne prasadi u leglu u prvih deset dana",
volume = "70",
number = "1-2",
pages = "13-29",
doi = "10.2298/VETGL1602013J"
}

Jović, S., Ćupić, V., Ristić, G., Vakanjac, S., Dimitrijević, B., Ćupić Miladinović, D.,& Živković, L.. (2016). The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days. in Veterinarski Glasnik
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 70(1-2), 13-29.
https://doi.org/10.2298/VETGL1602013J

Jović S, Ćupić V, Ristić G, Vakanjac S, Dimitrijević B, Ćupić Miladinović D, Živković L. The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days. in Veterinarski Glasnik. 2016;70(1-2):13-29.
doi:10.2298/VETGL1602013J .

Jović, Slavoljub, Ćupić, Vitomir, Ristić, Gordana, Vakanjac, Slobodanka, Dimitrijević, Blagoje, Ćupić Miladinović, Dejana, Živković, Lada, "The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days" in Veterinarski Glasnik, 70, no. 1-2 (2016):13-29,
https://doi.org/10.2298/VETGL1602013J . .

TY  - JOUR
AU  - Čabarkapa, Andrea
AU  - Živković, Lada
AU  - Borozan, Sunčica
AU  - Zlatkovic-Svenda, Mirjana
AU  - Dekanski, Dragana
AU  - Jancić, Ivan
AU  - Radak-Perović, Marija
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2016
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1418
AB  - The effects of co-administration of dry olive leaf extract (DOLE) with standard methotrexate (MTX) therapy on the parameters of cell damage and inflammation in patients with early and long-term rheumatoid arthritis (RA) were evaluated at baseline, 3 and 6weeks. Patients were assigned to groups: the early phase RA group on MTX monotherapy (E MTX), and the two RA groups that received co-treatment with DOLE and MTX: early (E MTX+DOLE) and long-term phase patients (L-t MTX+ DOLE). Baseline values indicated increased parameters of cell damage and disruption of redox balance in all groups. After three weeks the E MTX+DOLE group maintained high catalase activity, exhibited decrease of lipid peroxidation and protein damage indicatorsthiols and nitrites, while levels of DNA damage and pro-inflammatory interleukin-6 were significantly reduced. In E MTX group catalase activity remained unaltered while significant lipid peroxidation and DNA damage reductions were seen only after six weeks. L-t MTX+DOLE group showed only modest alterations of cell damage parameters during six weeks. Combined administration of DOLE with MTX contributes to faster reduction of cell damage, restores oxidative balance and improves interleukin-6 suppression during high disease activity in early phase RA, but not in long term patients. Copyright
PB  - Wiley-Blackwell, Hoboken
T2  - Phytotherapy Research
T1  - Dry Olive Leaf Extract in Combination with Methotrexate Reduces Cell Damage in Early Rheumatoid Arthritis PatientsA Pilot Study
VL  - 30
IS  - 10
SP  - 1615
EP  - 1623
DO  - 10.1002/ptr.5662
ER  - 

@article{
author = "Čabarkapa, Andrea and Živković, Lada and Borozan, Sunčica and Zlatkovic-Svenda, Mirjana and Dekanski, Dragana and Jancić, Ivan and Radak-Perović, Marija and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2016",
abstract = "The effects of co-administration of dry olive leaf extract (DOLE) with standard methotrexate (MTX) therapy on the parameters of cell damage and inflammation in patients with early and long-term rheumatoid arthritis (RA) were evaluated at baseline, 3 and 6weeks. Patients were assigned to groups: the early phase RA group on MTX monotherapy (E MTX), and the two RA groups that received co-treatment with DOLE and MTX: early (E MTX+DOLE) and long-term phase patients (L-t MTX+ DOLE). Baseline values indicated increased parameters of cell damage and disruption of redox balance in all groups. After three weeks the E MTX+DOLE group maintained high catalase activity, exhibited decrease of lipid peroxidation and protein damage indicatorsthiols and nitrites, while levels of DNA damage and pro-inflammatory interleukin-6 were significantly reduced. In E MTX group catalase activity remained unaltered while significant lipid peroxidation and DNA damage reductions were seen only after six weeks. L-t MTX+DOLE group showed only modest alterations of cell damage parameters during six weeks. Combined administration of DOLE with MTX contributes to faster reduction of cell damage, restores oxidative balance and improves interleukin-6 suppression during high disease activity in early phase RA, but not in long term patients. Copyright",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Phytotherapy Research",
title = "Dry Olive Leaf Extract in Combination with Methotrexate Reduces Cell Damage in Early Rheumatoid Arthritis PatientsA Pilot Study",
volume = "30",
number = "10",
pages = "1615-1623",
doi = "10.1002/ptr.5662"
}

Čabarkapa, A., Živković, L., Borozan, S., Zlatkovic-Svenda, M., Dekanski, D., Jancić, I., Radak-Perović, M., Bajić, V.,& Spremo-Potparević, B.. (2016). Dry Olive Leaf Extract in Combination with Methotrexate Reduces Cell Damage in Early Rheumatoid Arthritis PatientsA Pilot Study. in Phytotherapy Research
Wiley-Blackwell, Hoboken., 30(10), 1615-1623.
https://doi.org/10.1002/ptr.5662

Čabarkapa A, Živković L, Borozan S, Zlatkovic-Svenda M, Dekanski D, Jancić I, Radak-Perović M, Bajić V, Spremo-Potparević B. Dry Olive Leaf Extract in Combination with Methotrexate Reduces Cell Damage in Early Rheumatoid Arthritis PatientsA Pilot Study. in Phytotherapy Research. 2016;30(10):1615-1623.
doi:10.1002/ptr.5662 .

Čabarkapa, Andrea, Živković, Lada, Borozan, Sunčica, Zlatkovic-Svenda, Mirjana, Dekanski, Dragana, Jancić, Ivan, Radak-Perović, Marija, Bajić, Vladan, Spremo-Potparević, Biljana, "Dry Olive Leaf Extract in Combination with Methotrexate Reduces Cell Damage in Early Rheumatoid Arthritis PatientsA Pilot Study" in Phytotherapy Research, 30, no. 10 (2016):1615-1623,
https://doi.org/10.1002/ptr.5662 . .

TY  - JOUR
AU  - Žukovec-Topalović, Dijana
AU  - Živković, Lada
AU  - Čabarkapa, Andrea
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Dekanski, Dragana
AU  - Spremo-Potparević, Biljana
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1177
AB  - The thyroid hormones change the rate of basal metabolism, modulating the consumption of oxygen and causing production of reactive oxygen species, which leads to the development of oxidative stress and DNA strand breaks. Olive (Olea europaea L.) leaf contains many potentially bioactive compounds, making it one of the most potent natural antioxidants. The objective of this study was to evaluate the genotoxicity of L-thyroxine and to investigate antioxidative and antigenotoxic potential of the standardized oleuropein-rich dry olive leaf extract (DOLE) against hydrogen peroxide and L-thyroxine-induced DNA damage in human peripheral blood leukocytes by using the comet assay. Various concentrations of the extract were tested with both DNA damage inducers, under two different experimental conditions, pretreatment and posttreatment. Results indicate that L-thyroxine exhibited genotoxic effect and that DOLE displayed protective effect against thyroxine-induced genotoxicity. The number of cells with DNA damage, was significantly reduced, in both pretreated and posttreated samples (P < 0.05). Comparing the beneficial effect of all tested concentrations of DOLE, in both experimental protocols, it appears that extract was more effective in reducing DNA damage in the pretreatment, exhibiting protective role against L-thyroxine effect. This feature of DOLE can be explained by its capacity to act as potent free radical scavenger.
PB  - Hindawi Ltd, London
T2  - Oxidative Medicine and Cellular Longevity
T1  - Dry Olive Leaf Extract Counteracts L-Thyroxine-Induced Genotoxicity in Human Peripheral Blood Leukocytes In Vitro
VL  - 2015
SP  - 762192
DO  - 10.1155/2015/762192
ER  - 

@article{
author = "Žukovec-Topalović, Dijana and Živković, Lada and Čabarkapa, Andrea and Đelić, Ninoslav and Bajić, Vladan and Dekanski, Dragana and Spremo-Potparević, Biljana",
year = "2015",
abstract = "The thyroid hormones change the rate of basal metabolism, modulating the consumption of oxygen and causing production of reactive oxygen species, which leads to the development of oxidative stress and DNA strand breaks. Olive (Olea europaea L.) leaf contains many potentially bioactive compounds, making it one of the most potent natural antioxidants. The objective of this study was to evaluate the genotoxicity of L-thyroxine and to investigate antioxidative and antigenotoxic potential of the standardized oleuropein-rich dry olive leaf extract (DOLE) against hydrogen peroxide and L-thyroxine-induced DNA damage in human peripheral blood leukocytes by using the comet assay. Various concentrations of the extract were tested with both DNA damage inducers, under two different experimental conditions, pretreatment and posttreatment. Results indicate that L-thyroxine exhibited genotoxic effect and that DOLE displayed protective effect against thyroxine-induced genotoxicity. The number of cells with DNA damage, was significantly reduced, in both pretreated and posttreated samples (P < 0.05). Comparing the beneficial effect of all tested concentrations of DOLE, in both experimental protocols, it appears that extract was more effective in reducing DNA damage in the pretreatment, exhibiting protective role against L-thyroxine effect. This feature of DOLE can be explained by its capacity to act as potent free radical scavenger.",
publisher = "Hindawi Ltd, London",
journal = "Oxidative Medicine and Cellular Longevity",
title = "Dry Olive Leaf Extract Counteracts L-Thyroxine-Induced Genotoxicity in Human Peripheral Blood Leukocytes In Vitro",
volume = "2015",
pages = "762192",
doi = "10.1155/2015/762192"
}

Žukovec-Topalović, D., Živković, L., Čabarkapa, A., Đelić, N., Bajić, V., Dekanski, D.,& Spremo-Potparević, B.. (2015). Dry Olive Leaf Extract Counteracts L-Thyroxine-Induced Genotoxicity in Human Peripheral Blood Leukocytes In Vitro. in Oxidative Medicine and Cellular Longevity
Hindawi Ltd, London., 2015, 762192.
https://doi.org/10.1155/2015/762192

Žukovec-Topalović D, Živković L, Čabarkapa A, Đelić N, Bajić V, Dekanski D, Spremo-Potparević B. Dry Olive Leaf Extract Counteracts L-Thyroxine-Induced Genotoxicity in Human Peripheral Blood Leukocytes In Vitro. in Oxidative Medicine and Cellular Longevity. 2015;2015:762192.
doi:10.1155/2015/762192 .

Žukovec-Topalović, Dijana, Živković, Lada, Čabarkapa, Andrea, Đelić, Ninoslav, Bajić, Vladan, Dekanski, Dragana, Spremo-Potparević, Biljana, "Dry Olive Leaf Extract Counteracts L-Thyroxine-Induced Genotoxicity in Human Peripheral Blood Leukocytes In Vitro" in Oxidative Medicine and Cellular Longevity, 2015 (2015):762192,
https://doi.org/10.1155/2015/762192 . .

TY  - JOUR
AU  - Đelić, Ninoslav
AU  - Radaković, Milena
AU  - Spremo-Potparević, Biljana
AU  - Živković, Lada
AU  - Bajić, Vladan
AU  - Stevanović, Jevrosima
AU  - Stanimirović, Zoran
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1197
AB  - Catechol groups can be involved in redox cycling accompanied by generation of reactive oxygen species (ROS) which may lead to oxidative damage of cellular macromolecules including DNA. The objective of this investigation was to evaluate possible genotoxic effects of a natural catecholamine adrenaline in cultured human lymphocytes using cytogenetic (sister chromatid exchange and micronuclei) and the single cell gel electrophoresis (Comet) assay. In cytogenetic tests, six experimental concentrations of adrenaline were used in a range from 0.01-500 mu M. There were no indications of genotoxic effects of adrenaline in sister chromatid exchange and micronucleus tests. However, at four highest concentrations of adrenaline (5 mu M, 50 mu M, 150 mu M and 300 mu M) we observed a decreased mitotic index and cell-cycle delay. In addition, in the Comet assay we used adrenaline in a range from 0.0005-500 mu M, at two treatment times: 15 min or 60 min. In contrast to cytogenetic analysis, there was a dose-dependent increase of DNA damage detected in the Comet assay. These effects were significantly reduced by concomitant treatment with quercetin or catalase. Therefore, the obtained results indicate that adrenaline may exhibit genotoxic effects in cultured human lymphocytes, most likely due to production of reactive oxygen species.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Toxicology in Vitro
T1  - Evaluation of cytogenetic and DNA damage in human lymphocytes treated with adrenaline in vitro
VL  - 29
IS  - 1
SP  - 27
EP  - 33
DO  - 10.1016/j.tiv.2014.08.001
ER  - 

@article{
author = "Đelić, Ninoslav and Radaković, Milena and Spremo-Potparević, Biljana and Živković, Lada and Bajić, Vladan and Stevanović, Jevrosima and Stanimirović, Zoran",
year = "2015",
abstract = "Catechol groups can be involved in redox cycling accompanied by generation of reactive oxygen species (ROS) which may lead to oxidative damage of cellular macromolecules including DNA. The objective of this investigation was to evaluate possible genotoxic effects of a natural catecholamine adrenaline in cultured human lymphocytes using cytogenetic (sister chromatid exchange and micronuclei) and the single cell gel electrophoresis (Comet) assay. In cytogenetic tests, six experimental concentrations of adrenaline were used in a range from 0.01-500 mu M. There were no indications of genotoxic effects of adrenaline in sister chromatid exchange and micronucleus tests. However, at four highest concentrations of adrenaline (5 mu M, 50 mu M, 150 mu M and 300 mu M) we observed a decreased mitotic index and cell-cycle delay. In addition, in the Comet assay we used adrenaline in a range from 0.0005-500 mu M, at two treatment times: 15 min or 60 min. In contrast to cytogenetic analysis, there was a dose-dependent increase of DNA damage detected in the Comet assay. These effects were significantly reduced by concomitant treatment with quercetin or catalase. Therefore, the obtained results indicate that adrenaline may exhibit genotoxic effects in cultured human lymphocytes, most likely due to production of reactive oxygen species.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Toxicology in Vitro",
title = "Evaluation of cytogenetic and DNA damage in human lymphocytes treated with adrenaline in vitro",
volume = "29",
number = "1",
pages = "27-33",
doi = "10.1016/j.tiv.2014.08.001"
}

Đelić, N., Radaković, M., Spremo-Potparević, B., Živković, L., Bajić, V., Stevanović, J.,& Stanimirović, Z.. (2015). Evaluation of cytogenetic and DNA damage in human lymphocytes treated with adrenaline in vitro. in Toxicology in Vitro
Pergamon-Elsevier Science Ltd, Oxford., 29(1), 27-33.
https://doi.org/10.1016/j.tiv.2014.08.001

Đelić N, Radaković M, Spremo-Potparević B, Živković L, Bajić V, Stevanović J, Stanimirović Z. Evaluation of cytogenetic and DNA damage in human lymphocytes treated with adrenaline in vitro. in Toxicology in Vitro. 2015;29(1):27-33.
doi:10.1016/j.tiv.2014.08.001 .

Đelić, Ninoslav, Radaković, Milena, Spremo-Potparević, Biljana, Živković, Lada, Bajić, Vladan, Stevanović, Jevrosima, Stanimirović, Zoran, "Evaluation of cytogenetic and DNA damage in human lymphocytes treated with adrenaline in vitro" in Toxicology in Vitro, 29, no. 1 (2015):27-33,
https://doi.org/10.1016/j.tiv.2014.08.001 . .

TY  - JOUR
AU  - Topalović, Dijana
AU  - Živković, Lada
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Čabarkapa, Andrea
AU  - Jović, Slavoljub
AU  - Spremo-Potparević, Biljana
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1212
AB  - Hormones are cellular products involved in the regulation of a large number of processes in living systems, and which by their actions affect the growth, function and metabo­lism of cells. Considering that hormones are compounds normally present in the organism, it is important to determine if they can, under certain circumstances, lead to genetic changes in the hereditary material. Numerous experimental studies in vitro and in vivo in different systems, from bacteria to mammals, dealt with the mutagenic and genotoxic effects of hormones. This work presents an overview of the research on genotoxic effects of non­steroidal hormones, although possible changes of genetic material under their influence have not still been known enough, and moreover, investigations on their genotoxic influ­ence have given conflicting results. The study results show that mechanisms of genotoxic effect of nonsteroidal hormones are manifested through the increase of oxidative stress by arising reactive oxygen species. A common mechanism of ROS occurence in thyroid hormones and catecholamines is through metabolic oxidation of their phenolic groups. Mani­festation of insulin genotoxic effect is based on production of ROS by activation of NADPH isophorms, while testing oxytocin showed absence of genotoxic effect. Considering that the investigations on genotoxicity of nonsteroidal hormones demonstrated both positive and negative results, the explanation of this discordance involve limitations of test systems themselves, different cell types or biological species used in the experiments, different lev­el of reactivity in vitro and in vivo, as well as possible variations in a tissue-specific expres­sion. Integrated, the provided data contribute to better understanding of genotoxic effect of nonsteroidal hormones and point out to the role and mode of action of these hormones in the process of occurring of effects caused by oxidative stress.
AB  - Hormoni su ćelijski proizvodi uključeni u regulaciju velikog broja procesa u živim sistemima koji svojim dejstvom utiču na rast, funkciju ili metabolizam ćelija. Obzirom da su hormoni jedinjenja koja su uobičajeno prisutna u organizmu, značajno je utvrditi da li oni mogu pod izvesnim okolnostima dovesti do genetičkih promena na naslednom materijalu. Eksperimentalna ispitivanja u in vitro i in vivo uslovima u različitim sistemima, od bakterija do sisara, bavila su se istraživanjem mutagenih i genotoksičnih efekata hormona. U ovom radu je dat pregled istraživanja genotoksičnih efekata nesteroidnih hormona, pošto još uvek nisu dovoljno poznate moguće promene naslednog materijala pod njihovim uticajem, a i ispitivanja njihovog genotoksičnog dejstva su dala oprečne rezultate. Rezultati studija pokazuju da se mehanizmi genotoksičnog dejstva nesteroidnih hormona ispoljavaju kroz povećanje oksidativnog stresa nastankom reaktivnih vrsta kiseonika (reactive oxygen species - ROS). Uobičajeni mehanizam nastanka ROS kod tireoidnih hormona i kateholamina je putem metaboličke oksidacije njihovih fenolnih grupa. Ispoljavanje genotoksičnog efekta insulina se zasniva na produkciji ROS putem aktivacije NADPH izoformi, dok je ispitivanje oksitocina pokazalo odsustvo genotoksičnog efekta. Uzimajući u obzir da su ispitivanja genotoksičnosti nesteroidnih hormona pokazala i pozitivne i negativne rezultate, objašnjenja ovog neslaganja obuhvataju ograničenja samih test sistema, različite tipove ćelije ili bioloških vrsta upotrebljenih u eksperimentima, različiti nivo reaktivnosti u in vitro i in vivo uslovima, kao i moguće razlike u tkivno specifičnoj ekspresiji. Objedinjeni, navedeni podaci doprinose boljem razumevanju genotoksičnih efekata nesteroidnih hormona i ukazuju na ulogu i načine delovanja ovih hormona u procesu nastanka efekata izazvanih oksidativnim stresom.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Veterinarski Glasnik
T1  - Genotoxic potential of nonsteroidal hormones
T1  - Genotoksični potencijal nesteroidnih hormona
VL  - 69
IS  - 3-4
SP  - 245
EP  - 257
DO  - 10.2298/VETGL1504245T
ER  - 

@article{
author = "Topalović, Dijana and Živković, Lada and Đelić, Ninoslav and Bajić, Vladan and Čabarkapa, Andrea and Jović, Slavoljub and Spremo-Potparević, Biljana",
year = "2015",
abstract = "Hormones are cellular products involved in the regulation of a large number of processes in living systems, and which by their actions affect the growth, function and metabo­lism of cells. Considering that hormones are compounds normally present in the organism, it is important to determine if they can, under certain circumstances, lead to genetic changes in the hereditary material. Numerous experimental studies in vitro and in vivo in different systems, from bacteria to mammals, dealt with the mutagenic and genotoxic effects of hormones. This work presents an overview of the research on genotoxic effects of non­steroidal hormones, although possible changes of genetic material under their influence have not still been known enough, and moreover, investigations on their genotoxic influ­ence have given conflicting results. The study results show that mechanisms of genotoxic effect of nonsteroidal hormones are manifested through the increase of oxidative stress by arising reactive oxygen species. A common mechanism of ROS occurence in thyroid hormones and catecholamines is through metabolic oxidation of their phenolic groups. Mani­festation of insulin genotoxic effect is based on production of ROS by activation of NADPH isophorms, while testing oxytocin showed absence of genotoxic effect. Considering that the investigations on genotoxicity of nonsteroidal hormones demonstrated both positive and negative results, the explanation of this discordance involve limitations of test systems themselves, different cell types or biological species used in the experiments, different lev­el of reactivity in vitro and in vivo, as well as possible variations in a tissue-specific expres­sion. Integrated, the provided data contribute to better understanding of genotoxic effect of nonsteroidal hormones and point out to the role and mode of action of these hormones in the process of occurring of effects caused by oxidative stress., Hormoni su ćelijski proizvodi uključeni u regulaciju velikog broja procesa u živim sistemima koji svojim dejstvom utiču na rast, funkciju ili metabolizam ćelija. Obzirom da su hormoni jedinjenja koja su uobičajeno prisutna u organizmu, značajno je utvrditi da li oni mogu pod izvesnim okolnostima dovesti do genetičkih promena na naslednom materijalu. Eksperimentalna ispitivanja u in vitro i in vivo uslovima u različitim sistemima, od bakterija do sisara, bavila su se istraživanjem mutagenih i genotoksičnih efekata hormona. U ovom radu je dat pregled istraživanja genotoksičnih efekata nesteroidnih hormona, pošto još uvek nisu dovoljno poznate moguće promene naslednog materijala pod njihovim uticajem, a i ispitivanja njihovog genotoksičnog dejstva su dala oprečne rezultate. Rezultati studija pokazuju da se mehanizmi genotoksičnog dejstva nesteroidnih hormona ispoljavaju kroz povećanje oksidativnog stresa nastankom reaktivnih vrsta kiseonika (reactive oxygen species - ROS). Uobičajeni mehanizam nastanka ROS kod tireoidnih hormona i kateholamina je putem metaboličke oksidacije njihovih fenolnih grupa. Ispoljavanje genotoksičnog efekta insulina se zasniva na produkciji ROS putem aktivacije NADPH izoformi, dok je ispitivanje oksitocina pokazalo odsustvo genotoksičnog efekta. Uzimajući u obzir da su ispitivanja genotoksičnosti nesteroidnih hormona pokazala i pozitivne i negativne rezultate, objašnjenja ovog neslaganja obuhvataju ograničenja samih test sistema, različite tipove ćelije ili bioloških vrsta upotrebljenih u eksperimentima, različiti nivo reaktivnosti u in vitro i in vivo uslovima, kao i moguće razlike u tkivno specifičnoj ekspresiji. Objedinjeni, navedeni podaci doprinose boljem razumevanju genotoksičnih efekata nesteroidnih hormona i ukazuju na ulogu i načine delovanja ovih hormona u procesu nastanka efekata izazvanih oksidativnim stresom.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Veterinarski Glasnik",
title = "Genotoxic potential of nonsteroidal hormones, Genotoksični potencijal nesteroidnih hormona",
volume = "69",
number = "3-4",
pages = "245-257",
doi = "10.2298/VETGL1504245T"
}

Topalović, D., Živković, L., Đelić, N., Bajić, V., Čabarkapa, A., Jović, S.,& Spremo-Potparević, B.. (2015). Genotoxic potential of nonsteroidal hormones. in Veterinarski Glasnik
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 69(3-4), 245-257.
https://doi.org/10.2298/VETGL1504245T

Topalović D, Živković L, Đelić N, Bajić V, Čabarkapa A, Jović S, Spremo-Potparević B. Genotoxic potential of nonsteroidal hormones. in Veterinarski Glasnik. 2015;69(3-4):245-257.
doi:10.2298/VETGL1504245T .

Topalović, Dijana, Živković, Lada, Đelić, Ninoslav, Bajić, Vladan, Čabarkapa, Andrea, Jović, Slavoljub, Spremo-Potparević, Biljana, "Genotoxic potential of nonsteroidal hormones" in Veterinarski Glasnik, 69, no. 3-4 (2015):245-257,
https://doi.org/10.2298/VETGL1504245T . .

TY  - JOUR
AU  - Čabarkapa, Andrea
AU  - Borozan, Sunčica
AU  - Živković, Lada
AU  - Milanović-Čabarkapa, Mirjana
AU  - Stojanović, Srđan
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1827
AB  - The aim of this study was to determine oxidative alterations leading to cellular dysfunctions in Pb-exposed subjects by evaluating damage to all major classes of biomolecules in the cell, lipid peroxidation, protein and DNA damage and determine relationships between parameters of Pb toxicity and specific biomarkers of oxidative damage.Analysis was conducted of smelter workers with high blood Pb and urine aminolevulinic acid levels and slightly elevated values of coproporphyrin and erythrocyte protoporphyrin IX. Significant decreases of thiol groups and increases in carbonyl groups as protein degradation end products, and of nitrite were detected. Elevated rates of lipid peroxidation and rises in the activities of the antioxidant enzymes Cu-Zn superoxide dismutase and catalase were also observed. Both enzymes showed positive correlations with the blood lead levels and urine coproporphyrin, while thiol groups correlated negatively with the same indices. The genotoxic potential of lead was manifested through an increased number of DNA-damaged cells. Increased activities of serum lactate dehydrogenase isoenzymes indicated cellular damage in the lungs, kidneys, and liver. These lead-induced impairments should be taken into consideration in the assessment of Pb-related health hazards.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Toxicology
T1  - Implications of oxidative stress in occupational exposure to lead on a cellular level
VL  - 97
IS  - 6
SP  - 799
EP  - 813
DO  - 10.1080/02772248.2015.1060973
ER  - 

@article{
author = "Čabarkapa, Andrea and Borozan, Sunčica and Živković, Lada and Milanović-Čabarkapa, Mirjana and Stojanović, Srđan and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2015",
abstract = "The aim of this study was to determine oxidative alterations leading to cellular dysfunctions in Pb-exposed subjects by evaluating damage to all major classes of biomolecules in the cell, lipid peroxidation, protein and DNA damage and determine relationships between parameters of Pb toxicity and specific biomarkers of oxidative damage.Analysis was conducted of smelter workers with high blood Pb and urine aminolevulinic acid levels and slightly elevated values of coproporphyrin and erythrocyte protoporphyrin IX. Significant decreases of thiol groups and increases in carbonyl groups as protein degradation end products, and of nitrite were detected. Elevated rates of lipid peroxidation and rises in the activities of the antioxidant enzymes Cu-Zn superoxide dismutase and catalase were also observed. Both enzymes showed positive correlations with the blood lead levels and urine coproporphyrin, while thiol groups correlated negatively with the same indices. The genotoxic potential of lead was manifested through an increased number of DNA-damaged cells. Increased activities of serum lactate dehydrogenase isoenzymes indicated cellular damage in the lungs, kidneys, and liver. These lead-induced impairments should be taken into consideration in the assessment of Pb-related health hazards.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Toxicology",
title = "Implications of oxidative stress in occupational exposure to lead on a cellular level",
volume = "97",
number = "6",
pages = "799-813",
doi = "10.1080/02772248.2015.1060973"
}

Čabarkapa, A., Borozan, S., Živković, L., Milanović-Čabarkapa, M., Stojanović, S., Bajić, V.,& Spremo-Potparević, B.. (2015). Implications of oxidative stress in occupational exposure to lead on a cellular level. in Toxicology
Taylor & Francis Ltd, Abingdon., 97(6), 799-813.
https://doi.org/10.1080/02772248.2015.1060973

Čabarkapa A, Borozan S, Živković L, Milanović-Čabarkapa M, Stojanović S, Bajić V, Spremo-Potparević B. Implications of oxidative stress in occupational exposure to lead on a cellular level. in Toxicology. 2015;97(6):799-813.
doi:10.1080/02772248.2015.1060973 .

Čabarkapa, Andrea, Borozan, Sunčica, Živković, Lada, Milanović-Čabarkapa, Mirjana, Stojanović, Srđan, Bajić, Vladan, Spremo-Potparević, Biljana, "Implications of oxidative stress in occupational exposure to lead on a cellular level" in Toxicology, 97, no. 6 (2015):799-813,
https://doi.org/10.1080/02772248.2015.1060973 . .

TY  - JOUR
AU  - Čabarkapa, Andrea
AU  - Borozan, Sunčica
AU  - Živković, Lada
AU  - Milanović-Čabarkapa, Mirjana
AU  - Stojanović, Srđan
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1249
AB  - The aim of this study was to determine oxidative alterations leading to cellular dysfunctions in Pb-exposed subjects by evaluating damage to all major classes of biomolecules in the cell, lipid peroxidation, protein and DNA damage and determine relationships between parameters of Pb toxicity and specific biomarkers of oxidative damage.Analysis was conducted of smelter workers with high blood Pb and urine aminolevulinic acid levels and slightly elevated values of coproporphyrin and erythrocyte protoporphyrin IX. Significant decreases of thiol groups and increases in carbonyl groups as protein degradation end products, and of nitrite were detected. Elevated rates of lipid peroxidation and rises in the activities of the antioxidant enzymes Cu-Zn superoxide dismutase and catalase were also observed. Both enzymes showed positive correlations with the blood lead levels and urine coproporphyrin, while thiol groups correlated negatively with the same indices. The genotoxic potential of lead was manifested through an increased number of DNA-damaged cells. Increased activities of serum lactate dehydrogenase isoenzymes indicated cellular damage in the lungs, kidneys, and liver. These lead-induced impairments should be taken into consideration in the assessment of Pb-related health hazards.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Toxicological and Environmental Chemistry
T1  - Implications of oxidative stress in occupational exposure to lead on a cellular level
VL  - 97
IS  - 6
SP  - 799
EP  - 813
DO  - 10.1080/02772248.2015.1060973
ER  - 

@article{
author = "Čabarkapa, Andrea and Borozan, Sunčica and Živković, Lada and Milanović-Čabarkapa, Mirjana and Stojanović, Srđan and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2015",
abstract = "The aim of this study was to determine oxidative alterations leading to cellular dysfunctions in Pb-exposed subjects by evaluating damage to all major classes of biomolecules in the cell, lipid peroxidation, protein and DNA damage and determine relationships between parameters of Pb toxicity and specific biomarkers of oxidative damage.Analysis was conducted of smelter workers with high blood Pb and urine aminolevulinic acid levels and slightly elevated values of coproporphyrin and erythrocyte protoporphyrin IX. Significant decreases of thiol groups and increases in carbonyl groups as protein degradation end products, and of nitrite were detected. Elevated rates of lipid peroxidation and rises in the activities of the antioxidant enzymes Cu-Zn superoxide dismutase and catalase were also observed. Both enzymes showed positive correlations with the blood lead levels and urine coproporphyrin, while thiol groups correlated negatively with the same indices. The genotoxic potential of lead was manifested through an increased number of DNA-damaged cells. Increased activities of serum lactate dehydrogenase isoenzymes indicated cellular damage in the lungs, kidneys, and liver. These lead-induced impairments should be taken into consideration in the assessment of Pb-related health hazards.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Toxicological and Environmental Chemistry",
title = "Implications of oxidative stress in occupational exposure to lead on a cellular level",
volume = "97",
number = "6",
pages = "799-813",
doi = "10.1080/02772248.2015.1060973"
}

Čabarkapa, A., Borozan, S., Živković, L., Milanović-Čabarkapa, M., Stojanović, S., Bajić, V.,& Spremo-Potparević, B.. (2015). Implications of oxidative stress in occupational exposure to lead on a cellular level. in Toxicological and Environmental Chemistry
Taylor & Francis Ltd, Abingdon., 97(6), 799-813.
https://doi.org/10.1080/02772248.2015.1060973

Čabarkapa A, Borozan S, Živković L, Milanović-Čabarkapa M, Stojanović S, Bajić V, Spremo-Potparević B. Implications of oxidative stress in occupational exposure to lead on a cellular level. in Toxicological and Environmental Chemistry. 2015;97(6):799-813.
doi:10.1080/02772248.2015.1060973 .

Čabarkapa, Andrea, Borozan, Sunčica, Živković, Lada, Milanović-Čabarkapa, Mirjana, Stojanović, Srđan, Bajić, Vladan, Spremo-Potparević, Biljana, "Implications of oxidative stress in occupational exposure to lead on a cellular level" in Toxicological and Environmental Chemistry, 97, no. 6 (2015):799-813,
https://doi.org/10.1080/02772248.2015.1060973 . .

TY  - JOUR
AU  - Plecas-Solarović, Bosiljka
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Živković, Lada
AU  - Spremo-Potparević, Biljana
PY  - 2014
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1101
AB  - Alzheimers disease (AD) is the most frequent progressive neurodegenerative disorder in elderly associated with irreversible cognitive impairment and dementia. The vast majority of AD patients are sporadic (SAD) in which the disease develops after age of 65. Despite of century of research, we lack understanding of the SAD etiology and pathogenesis. Several hypotheses try to explain the main causes of brain degeneration in SAD, one of them assuming that genomic instability and the reentry of certain neurons into the incomplete cell cycle may be the pathogenic basis of the disease. Although the brain is the most affected organ in AD, numerous studies showed structural and functional alterations in peripheral tissues, suggesting that AD is a generalized systemic disorder. Diverse changes in peripheral cells from AD patients are described in literature including cell cycle aberration and chromosome instability, alterations in cell viability, proliferation and apoptosis, oxidative metabolism, amyloid precursor protein and amyloid beta protein metabolism, and other cellular processes. The aim of this paper was to summarize and review the results of our investigations and the growing literature data concerning the multiple chromosomal alterations in peripheral cells of AD patients and to consider their possible role in the disease pathogenesis as well as the importance of such investigations.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Cytogenetic alterations in peripheral cells of Alzheimer s disease patients
VL  - 46
IS  - 1
SP  - 315
EP  - 330
DO  - 10.2298/GENSR1401315P
ER  - 

@article{
author = "Plecas-Solarović, Bosiljka and Đelić, Ninoslav and Bajić, Vladan and Živković, Lada and Spremo-Potparević, Biljana",
year = "2014",
abstract = "Alzheimers disease (AD) is the most frequent progressive neurodegenerative disorder in elderly associated with irreversible cognitive impairment and dementia. The vast majority of AD patients are sporadic (SAD) in which the disease develops after age of 65. Despite of century of research, we lack understanding of the SAD etiology and pathogenesis. Several hypotheses try to explain the main causes of brain degeneration in SAD, one of them assuming that genomic instability and the reentry of certain neurons into the incomplete cell cycle may be the pathogenic basis of the disease. Although the brain is the most affected organ in AD, numerous studies showed structural and functional alterations in peripheral tissues, suggesting that AD is a generalized systemic disorder. Diverse changes in peripheral cells from AD patients are described in literature including cell cycle aberration and chromosome instability, alterations in cell viability, proliferation and apoptosis, oxidative metabolism, amyloid precursor protein and amyloid beta protein metabolism, and other cellular processes. The aim of this paper was to summarize and review the results of our investigations and the growing literature data concerning the multiple chromosomal alterations in peripheral cells of AD patients and to consider their possible role in the disease pathogenesis as well as the importance of such investigations.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Cytogenetic alterations in peripheral cells of Alzheimer s disease patients",
volume = "46",
number = "1",
pages = "315-330",
doi = "10.2298/GENSR1401315P"
}

Plecas-Solarović, B., Đelić, N., Bajić, V., Živković, L.,& Spremo-Potparević, B.. (2014). Cytogenetic alterations in peripheral cells of Alzheimer s disease patients. in Genetika
Društvo genetičara Srbije, Beograd., 46(1), 315-330.
https://doi.org/10.2298/GENSR1401315P

Plecas-Solarović B, Đelić N, Bajić V, Živković L, Spremo-Potparević B. Cytogenetic alterations in peripheral cells of Alzheimer s disease patients. in Genetika. 2014;46(1):315-330.
doi:10.2298/GENSR1401315P .

Plecas-Solarović, Bosiljka, Đelić, Ninoslav, Bajić, Vladan, Živković, Lada, Spremo-Potparević, Biljana, "Cytogenetic alterations in peripheral cells of Alzheimer s disease patients" in Genetika, 46, no. 1 (2014):315-330,
https://doi.org/10.2298/GENSR1401315P . .

TY  - JOUR
AU  - Čabarkapa, Andrea
AU  - Živković, Lada
AU  - Žukovec, Dijana
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Dekanski, Dragana
AU  - Spremo-Potparević, Biljana
PY  - 2014
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1104
AB  - Excessive release of stress hormone adrenaline is accompanied by generation of reactive oxygen species which may cause disruption of DNA integrity leading to cancer and age-related disorders. Phenolic-rich plant product dry olive leaf extract (DOLE) is known to modulate effects of various oxidants in human cells. The aim was to evaluate the effect of commercial DOLE against adrenaline induced DNA damage in human leukocytes by using comet assay. Peripheral blood leukocytes from 6 healthy subjects were treated in vitro with three final concentrations of DOLE (0.125, 0.5, and 1 mg/mL) for 30 min at 37 degrees C under two different protocols, pretreatment and post-treatment. Protective effect of DOLE was assessed from its ability to attenuate formation of DNA lesions induced by adrenaline. Compared to cells exposed only to adrenaline, DOLE displayed significant reduction (P < 0.001) of DNA damage at all three concentrations and under both experimental protocols. Pearson correlation analysis revealed a significant positive association between DOLE concentration and leukocytes DNA damage (P < 0.05). Antigenotoxic effect of the extract was more pronounced at smaller concentrations. Post-treatment with 0.125 mg/mL DOLE was the most effective against adrenaline genotoxicity. Results indicate genoprotective and antioxidant properties in dry olive leaf extract, strongly supporting further explorations of its underlying mechanisms of action.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Toxicology in Vitro
T1  - Protective effect of dry olive leaf extract in adrenaline induced DNA damage evaluated using in vitro comet assay with human peripheral leukocytes
VL  - 28
IS  - 3
SP  - 451
EP  - 456
DO  - 10.1016/j.tiv.2013.12.014
ER  - 

@article{
author = "Čabarkapa, Andrea and Živković, Lada and Žukovec, Dijana and Đelić, Ninoslav and Bajić, Vladan and Dekanski, Dragana and Spremo-Potparević, Biljana",
year = "2014",
abstract = "Excessive release of stress hormone adrenaline is accompanied by generation of reactive oxygen species which may cause disruption of DNA integrity leading to cancer and age-related disorders. Phenolic-rich plant product dry olive leaf extract (DOLE) is known to modulate effects of various oxidants in human cells. The aim was to evaluate the effect of commercial DOLE against adrenaline induced DNA damage in human leukocytes by using comet assay. Peripheral blood leukocytes from 6 healthy subjects were treated in vitro with three final concentrations of DOLE (0.125, 0.5, and 1 mg/mL) for 30 min at 37 degrees C under two different protocols, pretreatment and post-treatment. Protective effect of DOLE was assessed from its ability to attenuate formation of DNA lesions induced by adrenaline. Compared to cells exposed only to adrenaline, DOLE displayed significant reduction (P < 0.001) of DNA damage at all three concentrations and under both experimental protocols. Pearson correlation analysis revealed a significant positive association between DOLE concentration and leukocytes DNA damage (P < 0.05). Antigenotoxic effect of the extract was more pronounced at smaller concentrations. Post-treatment with 0.125 mg/mL DOLE was the most effective against adrenaline genotoxicity. Results indicate genoprotective and antioxidant properties in dry olive leaf extract, strongly supporting further explorations of its underlying mechanisms of action.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Toxicology in Vitro",
title = "Protective effect of dry olive leaf extract in adrenaline induced DNA damage evaluated using in vitro comet assay with human peripheral leukocytes",
volume = "28",
number = "3",
pages = "451-456",
doi = "10.1016/j.tiv.2013.12.014"
}

Čabarkapa, A., Živković, L., Žukovec, D., Đelić, N., Bajić, V., Dekanski, D.,& Spremo-Potparević, B.. (2014). Protective effect of dry olive leaf extract in adrenaline induced DNA damage evaluated using in vitro comet assay with human peripheral leukocytes. in Toxicology in Vitro
Pergamon-Elsevier Science Ltd, Oxford., 28(3), 451-456.
https://doi.org/10.1016/j.tiv.2013.12.014

Čabarkapa A, Živković L, Žukovec D, Đelić N, Bajić V, Dekanski D, Spremo-Potparević B. Protective effect of dry olive leaf extract in adrenaline induced DNA damage evaluated using in vitro comet assay with human peripheral leukocytes. in Toxicology in Vitro. 2014;28(3):451-456.
doi:10.1016/j.tiv.2013.12.014 .

Čabarkapa, Andrea, Živković, Lada, Žukovec, Dijana, Đelić, Ninoslav, Bajić, Vladan, Dekanski, Dragana, Spremo-Potparević, Biljana, "Protective effect of dry olive leaf extract in adrenaline induced DNA damage evaluated using in vitro comet assay with human peripheral leukocytes" in Toxicology in Vitro, 28, no. 3 (2014):451-456,
https://doi.org/10.1016/j.tiv.2013.12.014 . .

TY  - CONF
AU  - Žukovec, Dijana
AU  - Čabarkapa, Andrea
AU  - Živković, Lada
AU  - Đelić, Ninoslav
AU  - Dekanski, Dragana
AU  - Bajić, Vladan
AU  - Spremo-Potparević, Biljana
PY  - 2013
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/985
PB  - Karger, Basel
C3  - Annals of Nutrition and Metabolism
T1  - Protective Potential of Dry Olive Leaf Extract Against Oxidative Stress in Human Lymphocytes Induced by Thyroxin
VL  - 62
SP  - 51
EP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_985
ER  - 

@conference{
author = "Žukovec, Dijana and Čabarkapa, Andrea and Živković, Lada and Đelić, Ninoslav and Dekanski, Dragana and Bajić, Vladan and Spremo-Potparević, Biljana",
year = "2013",
publisher = "Karger, Basel",
journal = "Annals of Nutrition and Metabolism",
title = "Protective Potential of Dry Olive Leaf Extract Against Oxidative Stress in Human Lymphocytes Induced by Thyroxin",
volume = "62",
pages = "51-51",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_985"
}

Žukovec, D., Čabarkapa, A., Živković, L., Đelić, N., Dekanski, D., Bajić, V.,& Spremo-Potparević, B.. (2013). Protective Potential of Dry Olive Leaf Extract Against Oxidative Stress in Human Lymphocytes Induced by Thyroxin. in Annals of Nutrition and Metabolism
Karger, Basel., 62, 51-51.
https://hdl.handle.net/21.15107/rcub_veterinar_985

Žukovec D, Čabarkapa A, Živković L, Đelić N, Dekanski D, Bajić V, Spremo-Potparević B. Protective Potential of Dry Olive Leaf Extract Against Oxidative Stress in Human Lymphocytes Induced by Thyroxin. in Annals of Nutrition and Metabolism. 2013;62:51-51.
https://hdl.handle.net/21.15107/rcub_veterinar_985 .

Žukovec, Dijana, Čabarkapa, Andrea, Živković, Lada, Đelić, Ninoslav, Dekanski, Dragana, Bajić, Vladan, Spremo-Potparević, Biljana, "Protective Potential of Dry Olive Leaf Extract Against Oxidative Stress in Human Lymphocytes Induced by Thyroxin" in Annals of Nutrition and Metabolism, 62 (2013):51-51,
https://hdl.handle.net/21.15107/rcub_veterinar_985 .

TY  - JOUR
AU  - Živković, Lada
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan
AU  - Bogavac-Stanojević, Nataša
AU  - Žukovec, Dijana
AU  - Čabarkapa, Andrea
AU  - Spremo-Potparević, Biljana
PY  - 2013
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/981
AB  - Background: The antioxidant activity of estrogen has a beneficial impact in Alzheimer's disease. A variety of clinical studies have demonstrated that estrogen replacement therapy in postmenopausal women results in a lower frequency of AD, delaying the onset of the neurodegenerative cascade. On the other hand, it has been demonstrated that estrogens may exhibit genotoxic effects, especially at elevated tissue concentrations. Therefore, the aim of this study was to determine whether β-estradiol induces DNA damage in the peripheral blood lymphocytes of healthy young females and males, healthy elderly females and males and females and males with Alzheimer's disease. Methods: All experiments were performed using the alkaline version of the Comet assay (single cell gel electrophoresis), on six donors per each experimental group and controls. Results: In the Comet assay, a significant increase of DNA migration was observed in the lymphocytes of all treated groups (young and elderly females, young and elderly males, AD females and AD males) at all β-estradiol concentrations (50 µmol/L, 100 µmol/L and 250 µmol/L) used in this investigation. In all the experiments cell viability was over 80%.Conclusions: Lymphocytes are sensitive to the test concentrations of β-estradiol in the Comet assay regardless of gender, age and health condition of the examined subjects. Therefore, the role of β-estradiol in cellular DNA damage has been confirmed.
AB  - Uvod: Antioksidativna svojstva estrogena imaju povoljan uticaj na Alchajmerovu bolest (AB). Brojne kliničke studije su pokazale da primena hormonske supstitucione terapije estrogenom kod žena u postmenopauzi smanjuje učestalost pojave AB, odlažući početak neurodegenerativnih procesa. S druge strane, pokazano je da estrogeni mogu ispoljiti genotoksičan efekat, naročito pri povišenim koncentracijama u tkivu. Shodno tome, cilj ove studije bio je ispitivanje sposobnosti β-estradiola da izazove oštećenja u limfocitima periferne krvi zdravih mladih žena i muškaraca, zdravih starih žena i muškaraca, kao i žena i muškaraca koji boluju od Alchajmerove bolesti. Metode: Svi eksperimenti su izvedeni primenom alkalne verzije komet testa (gel-elektroforeza DNK pojedinačnih ćelija), na po šest subjekata u svakoj ispitivanoj grupi. Rezultati: Upotrebom komet testa, zabeleženo je značajno povećanje migracije DNK u limfocitima ispitanika iz svih tretiranih grupa (mladih i starih žena, mladih i starih muškaraca kao i kod žena i muškaraca sa AB), pri svim koncentracijama β-estradiola (50 µmol/L, 100 µmol/L i 250 µmol/L) koje su korišćene u ovoj studiji. U svim eksperimentima vijabilnost ćelija je bila iznad 80%. Zaključak: Limfociti periferne krvi osetljivi su na testirane koncentracije β-estradiola, bez obzira na pol, godište i zdravstveno stanje ispitanika. U skladu s navedenim nalazima, potvrđena je uloga β-estradiola u izazivanju oštećenja na ćelijskoj DNK.
PB  - Društvo medicinskih biohemičara Srbije, Beograd i Versita
T2  - Journal of Medical Biochemistry
T1  - Evaluation of DNA damage in the lymphocytes of young, elderly and Alzheimer's disease patients treated with β-estradiol in the comet assay
T1  - Evaluacija oštećenja DNK u limfocitima mladih, starih i pacijenata obolelih od Alchajmerove bolesti tretiranih β-estradiolom u komet testu
VL  - 32
IS  - 3
SP  - 238
EP  - 244
DO  - 10.2478/jomb-2013-0015
ER  - 

@article{
author = "Živković, Lada and Đelić, Ninoslav and Bajić, Vladan and Bogavac-Stanojević, Nataša and Žukovec, Dijana and Čabarkapa, Andrea and Spremo-Potparević, Biljana",
year = "2013",
abstract = "Background: The antioxidant activity of estrogen has a beneficial impact in Alzheimer's disease. A variety of clinical studies have demonstrated that estrogen replacement therapy in postmenopausal women results in a lower frequency of AD, delaying the onset of the neurodegenerative cascade. On the other hand, it has been demonstrated that estrogens may exhibit genotoxic effects, especially at elevated tissue concentrations. Therefore, the aim of this study was to determine whether β-estradiol induces DNA damage in the peripheral blood lymphocytes of healthy young females and males, healthy elderly females and males and females and males with Alzheimer's disease. Methods: All experiments were performed using the alkaline version of the Comet assay (single cell gel electrophoresis), on six donors per each experimental group and controls. Results: In the Comet assay, a significant increase of DNA migration was observed in the lymphocytes of all treated groups (young and elderly females, young and elderly males, AD females and AD males) at all β-estradiol concentrations (50 µmol/L, 100 µmol/L and 250 µmol/L) used in this investigation. In all the experiments cell viability was over 80%.Conclusions: Lymphocytes are sensitive to the test concentrations of β-estradiol in the Comet assay regardless of gender, age and health condition of the examined subjects. Therefore, the role of β-estradiol in cellular DNA damage has been confirmed., Uvod: Antioksidativna svojstva estrogena imaju povoljan uticaj na Alchajmerovu bolest (AB). Brojne kliničke studije su pokazale da primena hormonske supstitucione terapije estrogenom kod žena u postmenopauzi smanjuje učestalost pojave AB, odlažući početak neurodegenerativnih procesa. S druge strane, pokazano je da estrogeni mogu ispoljiti genotoksičan efekat, naročito pri povišenim koncentracijama u tkivu. Shodno tome, cilj ove studije bio je ispitivanje sposobnosti β-estradiola da izazove oštećenja u limfocitima periferne krvi zdravih mladih žena i muškaraca, zdravih starih žena i muškaraca, kao i žena i muškaraca koji boluju od Alchajmerove bolesti. Metode: Svi eksperimenti su izvedeni primenom alkalne verzije komet testa (gel-elektroforeza DNK pojedinačnih ćelija), na po šest subjekata u svakoj ispitivanoj grupi. Rezultati: Upotrebom komet testa, zabeleženo je značajno povećanje migracije DNK u limfocitima ispitanika iz svih tretiranih grupa (mladih i starih žena, mladih i starih muškaraca kao i kod žena i muškaraca sa AB), pri svim koncentracijama β-estradiola (50 µmol/L, 100 µmol/L i 250 µmol/L) koje su korišćene u ovoj studiji. U svim eksperimentima vijabilnost ćelija je bila iznad 80%. Zaključak: Limfociti periferne krvi osetljivi su na testirane koncentracije β-estradiola, bez obzira na pol, godište i zdravstveno stanje ispitanika. U skladu s navedenim nalazima, potvrđena je uloga β-estradiola u izazivanju oštećenja na ćelijskoj DNK.",
publisher = "Društvo medicinskih biohemičara Srbije, Beograd i Versita",
journal = "Journal of Medical Biochemistry",
title = "Evaluation of DNA damage in the lymphocytes of young, elderly and Alzheimer's disease patients treated with β-estradiol in the comet assay, Evaluacija oštećenja DNK u limfocitima mladih, starih i pacijenata obolelih od Alchajmerove bolesti tretiranih β-estradiolom u komet testu",
volume = "32",
number = "3",
pages = "238-244",
doi = "10.2478/jomb-2013-0015"
}

Živković, L., Đelić, N., Bajić, V., Bogavac-Stanojević, N., Žukovec, D., Čabarkapa, A.,& Spremo-Potparević, B.. (2013). Evaluation of DNA damage in the lymphocytes of young, elderly and Alzheimer's disease patients treated with β-estradiol in the comet assay. in Journal of Medical Biochemistry
Društvo medicinskih biohemičara Srbije, Beograd i Versita., 32(3), 238-244.
https://doi.org/10.2478/jomb-2013-0015

Živković L, Đelić N, Bajić V, Bogavac-Stanojević N, Žukovec D, Čabarkapa A, Spremo-Potparević B. Evaluation of DNA damage in the lymphocytes of young, elderly and Alzheimer's disease patients treated with β-estradiol in the comet assay. in Journal of Medical Biochemistry. 2013;32(3):238-244.
doi:10.2478/jomb-2013-0015 .

Živković, Lada, Đelić, Ninoslav, Bajić, Vladan, Bogavac-Stanojević, Nataša, Žukovec, Dijana, Čabarkapa, Andrea, Spremo-Potparević, Biljana, "Evaluation of DNA damage in the lymphocytes of young, elderly and Alzheimer's disease patients treated with β-estradiol in the comet assay" in Journal of Medical Biochemistry, 32, no. 3 (2013):238-244,
https://doi.org/10.2478/jomb-2013-0015 . .

TY  - JOUR
AU  - Radaković, Milena
AU  - Đelić, Ninoslav
AU  - Stanimirović, Zoran
AU  - Plećaš-Solarović, Bosiljka
AU  - Spremo-Potparević, Biljana
AU  - Živković, Lada
AU  - Bajić, Vladan
PY  - 2011
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/816
AB  - Ephedrine, a natural alkaloid from plants of the genus Ephedra, has a chemical structure similar to catecholamines. It is well established that catecholamines (adraneline, noradrenaline and dopamine) cause genotoxic and mutagenic effects. Therefore, the objectives of this investigation were to examine weather ephedrine can exhibit genotoxic effects on isolated human lymphocytes in the Comet assay. Dose-response of human lymphocytes was determined at the concentration range of ephedrine from 0.0005 μM to 500 μM. Three concentrations of ephedrine (1, 50 and 300 μM) which had acceptable cell viability (over 90%) were used for further experiments with inhibitors of DNA reparation (cytosine arabinoside and hydroxyurea). The obtained results showed that ephedrine did not induce DNA damage in isolated human lymphocytes. However, co-treatment of the negative control with DNA repair inhibitors caused a slight but significant increase of DNA damage, due to an endogenous DNA damage. Interestingly, cells treated with ephedrine and DNA repair inhibitors did not express increased DNA damage. On the basis of the obtained results it can be concluded that ephedrine did not exhibit genotoxic effects on isolated human lymphocytes. This result is in accordance with previous investigations showing negative genotoxicological results for ephedrine using bacterial gene mutation test-systems and in vitro cytogenetic analysis.
AB  - Efedrin, prirodni alkaloid iz biljaka roda Ephedra, ima sličnu hemijsku strukturu sa kateholaminima. Dobro je poznato da kateholamini (adrenalin, noradrenalin i dopamin) mogu da prouzrokuju genotoksične i mutagene efekte. Stoga su ciljevi ovog istraživanja bili da se ispita da li efedrin može da ispolji genotoksične efekte na izolovanim limfocitima čoveka u Komet testu. Odnos doza-efekat određ en je u rasponu koncentracija efedrina od 0.0005 μM do 500 μM. Tri koncentracije efedrina (1, 50 and 300 μM) koje su imale prihvatljiv nivo ćelijske vijabilnosti (preko 90%) upotrebljene su za dalje eksperimente sa inhibitorima reparacije DNK (citozin arabinozid i hidroksiurea). Dobijeni rezultati pokazuju da efedrin nije indukovao oštećenja DNK na izolovanim limfocitima čoveka. Međutim, istovremeni tretman sa inhibitorima reparacije DNK doveo je do malog ali statistički značajnog porasta oštećenja DNK kod negativne kontrole, usled endogenog oštećenja DNK. Interestantno je da ćelije tretirane sa efedrinom i inhibitorima reparacije DNK nisu ispoljile povećan nivo oštećenja DNK. Na osnovu dobijenih rezultata može se zaključiti da efedrin nije ispoljio genotoksične efekte na izolovanim limfocitima čoveka. Ovaj rezultat je u saglasnosti sa prethodnim istraživanjima u kojima je dokazano da efedrin ne dovodi do genotoksičnih efekata u bakterijskim testovima na genske mutacije i u in vitro citogenetičkim analizama.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Evaluation of the effects of ephedrine on human lymphocytes in the comet assay
T1  - Evaluacija dejstva efedrina na limfocite čoveka u komet testu
VL  - 61
IS  - 4
SP  - 363
EP  - 371
DO  - 10.2298/AVB1104363R
ER  - 

@article{
author = "Radaković, Milena and Đelić, Ninoslav and Stanimirović, Zoran and Plećaš-Solarović, Bosiljka and Spremo-Potparević, Biljana and Živković, Lada and Bajić, Vladan",
year = "2011",
abstract = "Ephedrine, a natural alkaloid from plants of the genus Ephedra, has a chemical structure similar to catecholamines. It is well established that catecholamines (adraneline, noradrenaline and dopamine) cause genotoxic and mutagenic effects. Therefore, the objectives of this investigation were to examine weather ephedrine can exhibit genotoxic effects on isolated human lymphocytes in the Comet assay. Dose-response of human lymphocytes was determined at the concentration range of ephedrine from 0.0005 μM to 500 μM. Three concentrations of ephedrine (1, 50 and 300 μM) which had acceptable cell viability (over 90%) were used for further experiments with inhibitors of DNA reparation (cytosine arabinoside and hydroxyurea). The obtained results showed that ephedrine did not induce DNA damage in isolated human lymphocytes. However, co-treatment of the negative control with DNA repair inhibitors caused a slight but significant increase of DNA damage, due to an endogenous DNA damage. Interestingly, cells treated with ephedrine and DNA repair inhibitors did not express increased DNA damage. On the basis of the obtained results it can be concluded that ephedrine did not exhibit genotoxic effects on isolated human lymphocytes. This result is in accordance with previous investigations showing negative genotoxicological results for ephedrine using bacterial gene mutation test-systems and in vitro cytogenetic analysis., Efedrin, prirodni alkaloid iz biljaka roda Ephedra, ima sličnu hemijsku strukturu sa kateholaminima. Dobro je poznato da kateholamini (adrenalin, noradrenalin i dopamin) mogu da prouzrokuju genotoksične i mutagene efekte. Stoga su ciljevi ovog istraživanja bili da se ispita da li efedrin može da ispolji genotoksične efekte na izolovanim limfocitima čoveka u Komet testu. Odnos doza-efekat određ en je u rasponu koncentracija efedrina od 0.0005 μM do 500 μM. Tri koncentracije efedrina (1, 50 and 300 μM) koje su imale prihvatljiv nivo ćelijske vijabilnosti (preko 90%) upotrebljene su za dalje eksperimente sa inhibitorima reparacije DNK (citozin arabinozid i hidroksiurea). Dobijeni rezultati pokazuju da efedrin nije indukovao oštećenja DNK na izolovanim limfocitima čoveka. Međutim, istovremeni tretman sa inhibitorima reparacije DNK doveo je do malog ali statistički značajnog porasta oštećenja DNK kod negativne kontrole, usled endogenog oštećenja DNK. Interestantno je da ćelije tretirane sa efedrinom i inhibitorima reparacije DNK nisu ispoljile povećan nivo oštećenja DNK. Na osnovu dobijenih rezultata može se zaključiti da efedrin nije ispoljio genotoksične efekte na izolovanim limfocitima čoveka. Ovaj rezultat je u saglasnosti sa prethodnim istraživanjima u kojima je dokazano da efedrin ne dovodi do genotoksičnih efekata u bakterijskim testovima na genske mutacije i u in vitro citogenetičkim analizama.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Evaluation of the effects of ephedrine on human lymphocytes in the comet assay, Evaluacija dejstva efedrina na limfocite čoveka u komet testu",
volume = "61",
number = "4",
pages = "363-371",
doi = "10.2298/AVB1104363R"
}

Radaković, M., Đelić, N., Stanimirović, Z., Plećaš-Solarović, B., Spremo-Potparević, B., Živković, L.,& Bajić, V.. (2011). Evaluation of the effects of ephedrine on human lymphocytes in the comet assay. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 61(4), 363-371.
https://doi.org/10.2298/AVB1104363R

Radaković M, Đelić N, Stanimirović Z, Plećaš-Solarović B, Spremo-Potparević B, Živković L, Bajić V. Evaluation of the effects of ephedrine on human lymphocytes in the comet assay. in Acta Veterinaria-Beograd. 2011;61(4):363-371.
doi:10.2298/AVB1104363R .

Radaković, Milena, Đelić, Ninoslav, Stanimirović, Zoran, Plećaš-Solarović, Bosiljka, Spremo-Potparević, Biljana, Živković, Lada, Bajić, Vladan, "Evaluation of the effects of ephedrine on human lymphocytes in the comet assay" in Acta Veterinaria-Beograd, 61, no. 4 (2011):363-371,
https://doi.org/10.2298/AVB1104363R . .

TY  - JOUR
AU  - Živković, Lada
AU  - Plećaš, Bosiljka
AU  - Bajić, Vladan
AU  - Đelić, Ninoslav
AU  - Spremo-Potparević, Biljana
PY  - 2011
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/795
AB  - DNA damage is a powerful trigger of apoptosis in neurons and is present in patients with Alzheimer's disease (AB). Also, DNA damage is registered in cells that are not neurons, such as peripheral blood leukocytes and fibroblasts. In this paper we examined and compared the impact of AB and chronological aging on DNA damage in peripheral blood leukocytes. We used electrophoresis of individual cells on gel (comet test) as a modern and reliable method for registration of nuclear DNA damage whose fragments form a comet tail, which is not present in undamaged cells. We analyzed leukocytes of these groups: AB patients with sporadic form of the disease, healthy elderly of an appropriate age and healthy younger adults as controls. The results show that the frequency of AB patients with leukocyte DNA damage significantly is higher than in similar control age-matched controls. Also, a significant increase in the frequency of DNA damage has been observed during chronological aging. Based on the obtained data we can conclude that genetic instability, otherwise present in the elderly is more expressed in patients with sporadic AB, which indicates that it is not just an epiphenomenon of aging, but is characteristic of the disease.
AB  - Oštećenja DNK su snažan okidač apoptoze neurona i prisutna su kod obolelih od Alchajmerove bolesti (AB). Ona se registruju i u ćelijama koje nisu neuroni, kao što su leukociti periferne krvi i fibroblasti. U ovom radu smo ispitivali i poredili uticaj AB i hronološkog starenja na oštećenje DNK leukocita periferne krvi. Koristili smo elektroforezu pojedinačnih ćelija na gelu (Komet test), kao savremenu i pouzdanu metodu za registrovanje oštećenja jedarne DNK čiji fragmenti formiraju rep komete, koji nije prisutan u neoštećenim ćelijama. Analizarani su leukociti: AB pacijenata sa sporadičnim oblikom bolesti, zdravih starih osoba odgovarajuće starosti i zdravih odraslih mlađih kontrolnih osoba. Dobijeni rezultati pokazuju da je kod AB ispitanika frekvencija leukocita sa oštećenjima DNK statistički značajno veća nego kod kontrola slične starosti; značajan porast učestalosti oštećenja DNK zapaža se i tokom hronološkog starenja. Na osnovu dobijenih podataka možemo da zaključimo da je genetička nestabilnost, inače prisutna i kod starih osoba, jače izražena kod pacijenata sa sporadičnom AB, što ukazuje na to da ona nije samo epifenomen starenja, već je karakteristika same bolesti.
PB  - Savez farmaceutskih udruženja Srbije, Beograd
T2  - Arhiv za farmaciju
T1  - Evaluation of DNA damages in peripheral blood leukocytes of Alzheimer's disease patients by Comet test
T1  - Ispitivanje stepena oštećenja DNK leukocita periferne krvi pacijenata sa Alchajmerovom bolešću primenom Komet testa
VL  - 61
IS  - 1
SP  - 28
EP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_795
ER  - 

@article{
author = "Živković, Lada and Plećaš, Bosiljka and Bajić, Vladan and Đelić, Ninoslav and Spremo-Potparević, Biljana",
year = "2011",
abstract = "DNA damage is a powerful trigger of apoptosis in neurons and is present in patients with Alzheimer's disease (AB). Also, DNA damage is registered in cells that are not neurons, such as peripheral blood leukocytes and fibroblasts. In this paper we examined and compared the impact of AB and chronological aging on DNA damage in peripheral blood leukocytes. We used electrophoresis of individual cells on gel (comet test) as a modern and reliable method for registration of nuclear DNA damage whose fragments form a comet tail, which is not present in undamaged cells. We analyzed leukocytes of these groups: AB patients with sporadic form of the disease, healthy elderly of an appropriate age and healthy younger adults as controls. The results show that the frequency of AB patients with leukocyte DNA damage significantly is higher than in similar control age-matched controls. Also, a significant increase in the frequency of DNA damage has been observed during chronological aging. Based on the obtained data we can conclude that genetic instability, otherwise present in the elderly is more expressed in patients with sporadic AB, which indicates that it is not just an epiphenomenon of aging, but is characteristic of the disease., Oštećenja DNK su snažan okidač apoptoze neurona i prisutna su kod obolelih od Alchajmerove bolesti (AB). Ona se registruju i u ćelijama koje nisu neuroni, kao što su leukociti periferne krvi i fibroblasti. U ovom radu smo ispitivali i poredili uticaj AB i hronološkog starenja na oštećenje DNK leukocita periferne krvi. Koristili smo elektroforezu pojedinačnih ćelija na gelu (Komet test), kao savremenu i pouzdanu metodu za registrovanje oštećenja jedarne DNK čiji fragmenti formiraju rep komete, koji nije prisutan u neoštećenim ćelijama. Analizarani su leukociti: AB pacijenata sa sporadičnim oblikom bolesti, zdravih starih osoba odgovarajuće starosti i zdravih odraslih mlađih kontrolnih osoba. Dobijeni rezultati pokazuju da je kod AB ispitanika frekvencija leukocita sa oštećenjima DNK statistički značajno veća nego kod kontrola slične starosti; značajan porast učestalosti oštećenja DNK zapaža se i tokom hronološkog starenja. Na osnovu dobijenih podataka možemo da zaključimo da je genetička nestabilnost, inače prisutna i kod starih osoba, jače izražena kod pacijenata sa sporadičnom AB, što ukazuje na to da ona nije samo epifenomen starenja, već je karakteristika same bolesti.",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Evaluation of DNA damages in peripheral blood leukocytes of Alzheimer's disease patients by Comet test, Ispitivanje stepena oštećenja DNK leukocita periferne krvi pacijenata sa Alchajmerovom bolešću primenom Komet testa",
volume = "61",
number = "1",
pages = "28-41",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_795"
}

Živković, L., Plećaš, B., Bajić, V., Đelić, N.,& Spremo-Potparević, B.. (2011). Evaluation of DNA damages in peripheral blood leukocytes of Alzheimer's disease patients by Comet test. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 61(1), 28-41.
https://hdl.handle.net/21.15107/rcub_veterinar_795

Živković L, Plećaš B, Bajić V, Đelić N, Spremo-Potparević B. Evaluation of DNA damages in peripheral blood leukocytes of Alzheimer's disease patients by Comet test. in Arhiv za farmaciju. 2011;61(1):28-41.
https://hdl.handle.net/21.15107/rcub_veterinar_795 .

Živković, Lada, Plećaš, Bosiljka, Bajić, Vladan, Đelić, Ninoslav, Spremo-Potparević, Biljana, "Evaluation of DNA damages in peripheral blood leukocytes of Alzheimer's disease patients by Comet test" in Arhiv za farmaciju, 61, no. 1 (2011):28-41,
https://hdl.handle.net/21.15107/rcub_veterinar_795 .

TY  - JOUR
AU  - Bajić, Vladan
AU  - Su, Bo
AU  - Lee, Hyoung-Gon
AU  - Kudo, Wataru
AU  - Siedlak, Sandra L.
AU  - Živković, Lada
AU  - Spremo-Potparević, Biljana
AU  - Đelić, Ninoslav
AU  - Milicević, Zorana
AU  - Singh, Avneet K.
AU  - Fahmy, Lara M.
AU  - Wang, Xinglong
AU  - Smith, Mark A.
AU  - Zhu, Xiongwei
PY  - 2011
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/800
AB  - Post-mitotic neurons are typically terminally differentiated and in a quiescent status. However, in Alzheimer disease (AD), many neurons display ectopic re-expression of cell cycle-related proteins. Cyclin-dependent kinase 11 (CDK11) mRNA produces a 110-kDa protein (CDK11(p110)) throughout the cell cycle, a 58-kDa protein (CDK11(p58)) that is specifically translated from an internal ribosome entry site and expressed only in the G(2)/M phase of the cell cycle, and a 46-kDa protein (CDK11(p46)) that is considered to be apoptosis specific. CDK11 is required for sister chromatid cohesion and the completion of mitosis. In this study, we found that the expression patterns of CDK11 vary such that cytoplasmic CDK11 is increased in AD cellular processes, compared to a pronounced nuclear expression pattern in most controls. We also investigated the effect of amyloid precursor protein (APP) on CDK11 expression in vitro by using M17 cells overexpressing wild-type APP and APP Swedish mutant phenotype and found increased CDK11 expression compared to empty vector. In addition, amyloid-beta(25-35) resulted in increased CDK11 in M17 cells. These data suggest that CDK11 may play a vital role in cell cycle re-entry in AD neurons in an APP-dependent manner, thus presenting an intriguing novel function of the APP signaling pathway in AD.
PB  - BMC, London
T2  - Cellular & Molecular Biology Letters
T1  - Mislocalization of CDK11/PITSLRE, a regulator of the G2/M phase of the cell cycle, in Alzheimer disease
VL  - 16
IS  - 3
SP  - 359
EP  - 372
DO  - 10.2478/s11658-011-0011-2
ER  - 

@article{
author = "Bajić, Vladan and Su, Bo and Lee, Hyoung-Gon and Kudo, Wataru and Siedlak, Sandra L. and Živković, Lada and Spremo-Potparević, Biljana and Đelić, Ninoslav and Milicević, Zorana and Singh, Avneet K. and Fahmy, Lara M. and Wang, Xinglong and Smith, Mark A. and Zhu, Xiongwei",
year = "2011",
abstract = "Post-mitotic neurons are typically terminally differentiated and in a quiescent status. However, in Alzheimer disease (AD), many neurons display ectopic re-expression of cell cycle-related proteins. Cyclin-dependent kinase 11 (CDK11) mRNA produces a 110-kDa protein (CDK11(p110)) throughout the cell cycle, a 58-kDa protein (CDK11(p58)) that is specifically translated from an internal ribosome entry site and expressed only in the G(2)/M phase of the cell cycle, and a 46-kDa protein (CDK11(p46)) that is considered to be apoptosis specific. CDK11 is required for sister chromatid cohesion and the completion of mitosis. In this study, we found that the expression patterns of CDK11 vary such that cytoplasmic CDK11 is increased in AD cellular processes, compared to a pronounced nuclear expression pattern in most controls. We also investigated the effect of amyloid precursor protein (APP) on CDK11 expression in vitro by using M17 cells overexpressing wild-type APP and APP Swedish mutant phenotype and found increased CDK11 expression compared to empty vector. In addition, amyloid-beta(25-35) resulted in increased CDK11 in M17 cells. These data suggest that CDK11 may play a vital role in cell cycle re-entry in AD neurons in an APP-dependent manner, thus presenting an intriguing novel function of the APP signaling pathway in AD.",
publisher = "BMC, London",
journal = "Cellular & Molecular Biology Letters",
title = "Mislocalization of CDK11/PITSLRE, a regulator of the G2/M phase of the cell cycle, in Alzheimer disease",
volume = "16",
number = "3",
pages = "359-372",
doi = "10.2478/s11658-011-0011-2"
}

Bajić, V., Su, B., Lee, H., Kudo, W., Siedlak, S. L., Živković, L., Spremo-Potparević, B., Đelić, N., Milicević, Z., Singh, A. K., Fahmy, L. M., Wang, X., Smith, M. A.,& Zhu, X.. (2011). Mislocalization of CDK11/PITSLRE, a regulator of the G2/M phase of the cell cycle, in Alzheimer disease. in Cellular & Molecular Biology Letters
BMC, London., 16(3), 359-372.
https://doi.org/10.2478/s11658-011-0011-2

Bajić V, Su B, Lee H, Kudo W, Siedlak SL, Živković L, Spremo-Potparević B, Đelić N, Milicević Z, Singh AK, Fahmy LM, Wang X, Smith MA, Zhu X. Mislocalization of CDK11/PITSLRE, a regulator of the G2/M phase of the cell cycle, in Alzheimer disease. in Cellular & Molecular Biology Letters. 2011;16(3):359-372.
doi:10.2478/s11658-011-0011-2 .

Bajić, Vladan, Su, Bo, Lee, Hyoung-Gon, Kudo, Wataru, Siedlak, Sandra L., Živković, Lada, Spremo-Potparević, Biljana, Đelić, Ninoslav, Milicević, Zorana, Singh, Avneet K., Fahmy, Lara M., Wang, Xinglong, Smith, Mark A., Zhu, Xiongwei, "Mislocalization of CDK11/PITSLRE, a regulator of the G2/M phase of the cell cycle, in Alzheimer disease" in Cellular & Molecular Biology Letters, 16, no. 3 (2011):359-372,
https://doi.org/10.2478/s11658-011-0011-2 . .