TY  - CONF
AU  - Fratrić, Natalija
AU  - Kovačić, Marijana
AU  - Gvozdić, Dragan
AU  - Marković, Dragana
AU  - Drvenica, Ivana
AU  - Maslovarić, Irina
AU  - Ilić, Vesna
PY  - 2023
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/3331
PB  - German Veterinary Medical Society
C3  - European Buiatrics Congress and ECBHM Jubilee Symposium 2023, Berlin, Germany, August 24 - 26, 2023
T1  - Rivanol soluble blood serum IgG in calf bronchopneumonia
SP  - 251
EP  - 252
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_3331
ER  - 

@conference{
author = "Fratrić, Natalija and Kovačić, Marijana and Gvozdić, Dragan and Marković, Dragana and Drvenica, Ivana and Maslovarić, Irina and Ilić, Vesna",
year = "2023",
publisher = "German Veterinary Medical Society",
journal = "European Buiatrics Congress and ECBHM Jubilee Symposium 2023, Berlin, Germany, August 24 - 26, 2023",
title = "Rivanol soluble blood serum IgG in calf bronchopneumonia",
pages = "251-252",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_3331"
}

Fratrić, N., Kovačić, M., Gvozdić, D., Marković, D., Drvenica, I., Maslovarić, I.,& Ilić, V.. (2023). Rivanol soluble blood serum IgG in calf bronchopneumonia. in European Buiatrics Congress and ECBHM Jubilee Symposium 2023, Berlin, Germany, August 24 - 26, 2023
German Veterinary Medical Society., 251-252.
https://hdl.handle.net/21.15107/rcub_veterinar_3331

Fratrić N, Kovačić M, Gvozdić D, Marković D, Drvenica I, Maslovarić I, Ilić V. Rivanol soluble blood serum IgG in calf bronchopneumonia. in European Buiatrics Congress and ECBHM Jubilee Symposium 2023, Berlin, Germany, August 24 - 26, 2023. 2023;:251-252.
https://hdl.handle.net/21.15107/rcub_veterinar_3331 .

Fratrić, Natalija, Kovačić, Marijana, Gvozdić, Dragan, Marković, Dragana, Drvenica, Ivana, Maslovarić, Irina, Ilić, Vesna, "Rivanol soluble blood serum IgG in calf bronchopneumonia" in European Buiatrics Congress and ECBHM Jubilee Symposium 2023, Berlin, Germany, August 24 - 26, 2023 (2023):251-252,
https://hdl.handle.net/21.15107/rcub_veterinar_3331 .

TY  - JOUR
AU  - Ivana, Drvenica
AU  - Stojić, Milica
AU  - Fratrić, Natalija
AU  - Kovačić, Marijana
AU  - Grujić-Milanović, Jelica
AU  - Vejnović, Branislav
AU  - Marković, Dragana
AU  - Gvozdić, Dragan
AU  - Ilić, Vesna
PY  - 2022
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2646
AB  - Redox imbalance in peripartum period influences health of dairy cows and their foetus and,
through the colostrum, health of new-born calves. Oxidative stress in cattle can be suppressed
by dietary supplementation with natural minerals, and we investigated the effect of supplementation with organically modified clinoptilolite on redox status parameters in healthy pregnant
primiparous dairy cows. Holstein cows were randomly assigned to receive daily oral drenching,
with 1 L of water containing either 0 g/L (n ¼ 14; control group) or 150 g/L of clinoptilolite (n ¼ 17; supplemented group). Treatment lasted from 24 ± 4 days prior to parturition until 2 days postpartum (pp). Blood samples were collected on days 24 ± 4 (–24 D) and 4 ± 2 (–4 D) prior to
parturition and on days 1 (þ1 D), 2 (þ2 D), and 7 (þ7 D) pp, and colostrum were collected at 2,
12, 24 and 36 h pp. Total antioxidant capacity, lipid peroxides, and advanced oxidation protein
products (AOPP) levels were determined in peripheral blood plasma, erythrocytes, and colostrum
whey. The concentration of antioxidants in the peripheral blood of supplemented cows was
increased by 41% and 19% on (þ2 D) and (þ7 D), respectively, while the concentration of lipid
peroxides on (þ7 D) was lowered by 57% compared with the control group. In addition, this
supplementation increased erythrocyte AOPP level on (–4 D) 61%) and colostral lipid peroxides
level (90%) at 24 h pp. The results of this study showed that applied short-term supplementation
with clinoptilolite influences redox homeostasis and may contribute to effective adaptation of
primiparous cows to redox imbalance in the peripartum period.
PB  - Taylor and Francis
T2  - Italian Journal of Animal Science
T1  - Oral supplementation with organically modified clinoptilolite during prepartum period influences the redox status of peripheral blood and colostrum of primiparous dairy cows
VL  - 21
IS  - 1
SP  - 847
EP  - 858
DO  - 10.1080/1828051X.2022.2070034
ER  - 

@article{
author = "Ivana, Drvenica and Stojić, Milica and Fratrić, Natalija and Kovačić, Marijana and Grujić-Milanović, Jelica and Vejnović, Branislav and Marković, Dragana and Gvozdić, Dragan and Ilić, Vesna",
year = "2022",
abstract = "Redox imbalance in peripartum period influences health of dairy cows and their foetus and,
through the colostrum, health of new-born calves. Oxidative stress in cattle can be suppressed
by dietary supplementation with natural minerals, and we investigated the effect of supplementation with organically modified clinoptilolite on redox status parameters in healthy pregnant
primiparous dairy cows. Holstein cows were randomly assigned to receive daily oral drenching,
with 1 L of water containing either 0 g/L (n ¼ 14; control group) or 150 g/L of clinoptilolite (n ¼ 17; supplemented group). Treatment lasted from 24 ± 4 days prior to parturition until 2 days postpartum (pp). Blood samples were collected on days 24 ± 4 (–24 D) and 4 ± 2 (–4 D) prior to
parturition and on days 1 (þ1 D), 2 (þ2 D), and 7 (þ7 D) pp, and colostrum were collected at 2,
12, 24 and 36 h pp. Total antioxidant capacity, lipid peroxides, and advanced oxidation protein
products (AOPP) levels were determined in peripheral blood plasma, erythrocytes, and colostrum
whey. The concentration of antioxidants in the peripheral blood of supplemented cows was
increased by 41% and 19% on (þ2 D) and (þ7 D), respectively, while the concentration of lipid
peroxides on (þ7 D) was lowered by 57% compared with the control group. In addition, this
supplementation increased erythrocyte AOPP level on (–4 D) 61%) and colostral lipid peroxides
level (90%) at 24 h pp. The results of this study showed that applied short-term supplementation
with clinoptilolite influences redox homeostasis and may contribute to effective adaptation of
primiparous cows to redox imbalance in the peripartum period.",
publisher = "Taylor and Francis",
journal = "Italian Journal of Animal Science",
title = "Oral supplementation with organically modified clinoptilolite during prepartum period influences the redox status of peripheral blood and colostrum of primiparous dairy cows",
volume = "21",
number = "1",
pages = "847-858",
doi = "10.1080/1828051X.2022.2070034"
}

Ivana, D., Stojić, M., Fratrić, N., Kovačić, M., Grujić-Milanović, J., Vejnović, B., Marković, D., Gvozdić, D.,& Ilić, V.. (2022). Oral supplementation with organically modified clinoptilolite during prepartum period influences the redox status of peripheral blood and colostrum of primiparous dairy cows. in Italian Journal of Animal Science
Taylor and Francis., 21(1), 847-858.
https://doi.org/10.1080/1828051X.2022.2070034

Ivana D, Stojić M, Fratrić N, Kovačić M, Grujić-Milanović J, Vejnović B, Marković D, Gvozdić D, Ilić V. Oral supplementation with organically modified clinoptilolite during prepartum period influences the redox status of peripheral blood and colostrum of primiparous dairy cows. in Italian Journal of Animal Science. 2022;21(1):847-858.
doi:10.1080/1828051X.2022.2070034 .

Ivana, Drvenica, Stojić, Milica, Fratrić, Natalija, Kovačić, Marijana, Grujić-Milanović, Jelica, Vejnović, Branislav, Marković, Dragana, Gvozdić, Dragan, Ilić, Vesna, "Oral supplementation with organically modified clinoptilolite during prepartum period influences the redox status of peripheral blood and colostrum of primiparous dairy cows" in Italian Journal of Animal Science, 21, no. 1 (2022):847-858,
https://doi.org/10.1080/1828051X.2022.2070034 . .

Stojić, M., Ilić, V., Kovačić, M., Gvozdić, D., Stajković, S., Vejnović, B., Savić, O.,& Fratrić, N.. (2020). Effects of oral supplementation with organically modified clinoptilolite during prepartum period on colostrum quality in primiparous dairy cows. in Journal of Dairy Research
Cambridge University Press., 87(4), 429-435.
https://hdl.handle.net/21.15107/rcub_veterinar_1976

Stojić M, Ilić V, Kovačić M, Gvozdić D, Stajković S, Vejnović B, Savić O, Fratrić N. Effects of oral supplementation with organically modified clinoptilolite during prepartum period on colostrum quality in primiparous dairy cows. in Journal of Dairy Research. 2020;87(4):429-435.
https://hdl.handle.net/21.15107/rcub_veterinar_1976 .

Stojić, Milica, Ilić, Vesna, Kovačić, Marijana, Gvozdić, Dragan, Stajković, Silvana, Vejnović, Branislav, Savić, Olivera, Fratrić, Natalija, "Effects of oral supplementation with organically modified clinoptilolite during prepartum period on colostrum quality in primiparous dairy cows" in Journal of Dairy Research, 87, no. 4 (2020):429-435,
https://hdl.handle.net/21.15107/rcub_veterinar_1976 .

TY  - JOUR
AU  - Kovačić, Marijana
AU  - Fratrić, Natalija
AU  - Arsić, Aleksandra
AU  - Mojsilović, Slavko
AU  - Drvenica, Ivana
AU  - Marković, Dragana
AU  - Maslovarić, Irina
AU  - Grujić Milanović, Jelica
AU  - Ivanov, Milan
AU  - Ilić, Vesna
PY  - 2020
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1862
AB  - Calf bronchopneumonia is accompanied by increased level of circulating immune complexes (CIC), and we analysed size, and protein and lipid constituents of these CIC with an attempt to elucidate the connection between the CIC structural properties and their capacity to modulate leukocyte function. CIC of heathy calves (CICH) and calves with naturally occurring bronchopneumonia (CICD) were isolated by PEG precipitation and analysed by electrophoresis and chromatography. The predominant CIC proteins were IgG, albumin, and transferrin. Affinity isolated serum and CIC IgG coprecipitated several proteins, but only 75 and 80 kDa proteins bound CIC IgG, exclusively. 60 and 65 kDa proteins co-precipitated with CICD IgG, unlike CICH IgG. In both CICH and CICD, oleic acid-containing phospholipids predominated. In CICD, the content of oleic and vaccenic acid was higher than in CICH, while myristic, palmitic, stearic, linoleic and arachidonic acid showed lower content. Dynamic light scattering displayed difference in particle size distribution between CICH and CICD; 1280 nm large particles were present only in CICD. The effect of CICH and CICD on mononuclear cells (MNC) and granulocytes was analysed in vitro. CICH and CICD, with slight difference in intensity, stimulate MNC apoptosis, promote cell cycle arrest of unstimulated MNC, and cell cycle progression of PHA stimulated MNC. Both CIC reduced granulocyte apoptosis after 24 h while after 48 h this effect was detected for CICD only. These results indicate that structural differences of CICH and CICD might interfere with the CIC functional capacity, which we consider important for evaluation of CIC immunoregulatory function.
PB  - Elsevier
T2  - Research in Veterinary Science
T1  - Structural characteristics of circulating immune complexes in calves with bronchopneumonia: Impact on the quiescent leukocytes
VL  - 133
SP  - 63
EP  - 74
DO  - 10.1016/j.rvsc.2020.09.004
ER  - 

@article{
author = "Kovačić, Marijana and Fratrić, Natalija and Arsić, Aleksandra and Mojsilović, Slavko and Drvenica, Ivana and Marković, Dragana and Maslovarić, Irina and Grujić Milanović, Jelica and Ivanov, Milan and Ilić, Vesna",
year = "2020",
abstract = "Calf bronchopneumonia is accompanied by increased level of circulating immune complexes (CIC), and we analysed size, and protein and lipid constituents of these CIC with an attempt to elucidate the connection between the CIC structural properties and their capacity to modulate leukocyte function. CIC of heathy calves (CICH) and calves with naturally occurring bronchopneumonia (CICD) were isolated by PEG precipitation and analysed by electrophoresis and chromatography. The predominant CIC proteins were IgG, albumin, and transferrin. Affinity isolated serum and CIC IgG coprecipitated several proteins, but only 75 and 80 kDa proteins bound CIC IgG, exclusively. 60 and 65 kDa proteins co-precipitated with CICD IgG, unlike CICH IgG. In both CICH and CICD, oleic acid-containing phospholipids predominated. In CICD, the content of oleic and vaccenic acid was higher than in CICH, while myristic, palmitic, stearic, linoleic and arachidonic acid showed lower content. Dynamic light scattering displayed difference in particle size distribution between CICH and CICD; 1280 nm large particles were present only in CICD. The effect of CICH and CICD on mononuclear cells (MNC) and granulocytes was analysed in vitro. CICH and CICD, with slight difference in intensity, stimulate MNC apoptosis, promote cell cycle arrest of unstimulated MNC, and cell cycle progression of PHA stimulated MNC. Both CIC reduced granulocyte apoptosis after 24 h while after 48 h this effect was detected for CICD only. These results indicate that structural differences of CICH and CICD might interfere with the CIC functional capacity, which we consider important for evaluation of CIC immunoregulatory function.",
publisher = "Elsevier",
journal = "Research in Veterinary Science",
title = "Structural characteristics of circulating immune complexes in calves with bronchopneumonia: Impact on the quiescent leukocytes",
volume = "133",
pages = "63-74",
doi = "10.1016/j.rvsc.2020.09.004"
}

Kovačić, M., Fratrić, N., Arsić, A., Mojsilović, S., Drvenica, I., Marković, D., Maslovarić, I., Grujić Milanović, J., Ivanov, M.,& Ilić, V.. (2020). Structural characteristics of circulating immune complexes in calves with bronchopneumonia: Impact on the quiescent leukocytes. in Research in Veterinary Science
Elsevier., 133, 63-74.
https://doi.org/10.1016/j.rvsc.2020.09.004

Kovačić M, Fratrić N, Arsić A, Mojsilović S, Drvenica I, Marković D, Maslovarić I, Grujić Milanović J, Ivanov M, Ilić V. Structural characteristics of circulating immune complexes in calves with bronchopneumonia: Impact on the quiescent leukocytes. in Research in Veterinary Science. 2020;133:63-74.
doi:10.1016/j.rvsc.2020.09.004 .

Kovačić, Marijana, Fratrić, Natalija, Arsić, Aleksandra, Mojsilović, Slavko, Drvenica, Ivana, Marković, Dragana, Maslovarić, Irina, Grujić Milanović, Jelica, Ivanov, Milan, Ilić, Vesna, "Structural characteristics of circulating immune complexes in calves with bronchopneumonia: Impact on the quiescent leukocytes" in Research in Veterinary Science, 133 (2020):63-74,
https://doi.org/10.1016/j.rvsc.2020.09.004 . .

TY  - JOUR
AU  - Stojić, Milica
AU  - Fratrić, Natalija
AU  - Kovacić, Marijana
AU  - Ilić, Vesna
AU  - Gvozdić, Dragan
AU  - Savić, Olivera
AU  - Doković, Radojica
AU  - Valčić, Olivera
PY  - 2017
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1519
AB  - Failure of passive transfer (FPT) of immunoglobulins (IgG) is associated with increased morbidity and mortality of calves. In this study we evaluated the digital Brix refractometer usefulness for the assessment of FPT. A number of 16 colostrum samples from the first milking (2-3h post-partum) of Holstein-Friesian dairy heifers and 29 blood sera of 3-6 days old calves were analyzed with a digital Brix refractometer. Total proteins were determined by the biuret reaction. Colostral IgG were determined by radial immunodiffusion (RID), and colostral whey and blood serum. globulin (composed almost entirely of IgG) were determined by agarose protein gel electrophoresis (APE) and densitometry. Colostral % Brix score was 25.5 +/- 3.4%. Concentrations of colostrum IgG and colostral whey. globulin were 130 +/- 33 g/L and 100 +/- 24 g/L respectively. The concentration of total proteins in colostral whey was 134 +/- 30 g/L. The correlations between Brix values and the concentrations of IgG determined with RID and the concentrations of. globulin determined with APE were positive and highly significant (P<0.001 and P<0.01). The concentration of serum proteins of new-born calves was 57.75 +/- 11.8 g/L, the concentration of. globulin was 14.4 +/- 7.8 g/L, and the Brix score was 8.6 +/- 1.0%. FPT (serum. globulin<10 g/L) was detected in 34.5% (10/29) calves. Brix score correlated with the concentration of blood serum. globulins in all examined calves. The results have confirmed that digital Brix refractometry allows the producers to use this technique in order to estimate colostral and calf serum IgG, thereby monitoring both colostrum quality and success of passive transfer.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Brix refractometry of colostrum from primiparous dairy cows and new-born calf blood serum in the evaluation of failure of passive transfer
VL  - 67
IS  - 4
SP  - 508
EP  - 524
DO  - 10.1515/acve-2017-0041
ER  - 

@article{
author = "Stojić, Milica and Fratrić, Natalija and Kovacić, Marijana and Ilić, Vesna and Gvozdić, Dragan and Savić, Olivera and Doković, Radojica and Valčić, Olivera",
year = "2017",
abstract = "Failure of passive transfer (FPT) of immunoglobulins (IgG) is associated with increased morbidity and mortality of calves. In this study we evaluated the digital Brix refractometer usefulness for the assessment of FPT. A number of 16 colostrum samples from the first milking (2-3h post-partum) of Holstein-Friesian dairy heifers and 29 blood sera of 3-6 days old calves were analyzed with a digital Brix refractometer. Total proteins were determined by the biuret reaction. Colostral IgG were determined by radial immunodiffusion (RID), and colostral whey and blood serum. globulin (composed almost entirely of IgG) were determined by agarose protein gel electrophoresis (APE) and densitometry. Colostral % Brix score was 25.5 +/- 3.4%. Concentrations of colostrum IgG and colostral whey. globulin were 130 +/- 33 g/L and 100 +/- 24 g/L respectively. The concentration of total proteins in colostral whey was 134 +/- 30 g/L. The correlations between Brix values and the concentrations of IgG determined with RID and the concentrations of. globulin determined with APE were positive and highly significant (P<0.001 and P<0.01). The concentration of serum proteins of new-born calves was 57.75 +/- 11.8 g/L, the concentration of. globulin was 14.4 +/- 7.8 g/L, and the Brix score was 8.6 +/- 1.0%. FPT (serum. globulin<10 g/L) was detected in 34.5% (10/29) calves. Brix score correlated with the concentration of blood serum. globulins in all examined calves. The results have confirmed that digital Brix refractometry allows the producers to use this technique in order to estimate colostral and calf serum IgG, thereby monitoring both colostrum quality and success of passive transfer.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Brix refractometry of colostrum from primiparous dairy cows and new-born calf blood serum in the evaluation of failure of passive transfer",
volume = "67",
number = "4",
pages = "508-524",
doi = "10.1515/acve-2017-0041"
}

Stojić, M., Fratrić, N., Kovacić, M., Ilić, V., Gvozdić, D., Savić, O., Doković, R.,& Valčić, O.. (2017). Brix refractometry of colostrum from primiparous dairy cows and new-born calf blood serum in the evaluation of failure of passive transfer. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 67(4), 508-524.
https://doi.org/10.1515/acve-2017-0041

Stojić M, Fratrić N, Kovacić M, Ilić V, Gvozdić D, Savić O, Doković R, Valčić O. Brix refractometry of colostrum from primiparous dairy cows and new-born calf blood serum in the evaluation of failure of passive transfer. in Acta Veterinaria-Beograd. 2017;67(4):508-524.
doi:10.1515/acve-2017-0041 .

Stojić, Milica, Fratrić, Natalija, Kovacić, Marijana, Ilić, Vesna, Gvozdić, Dragan, Savić, Olivera, Doković, Radojica, Valčić, Olivera, "Brix refractometry of colostrum from primiparous dairy cows and new-born calf blood serum in the evaluation of failure of passive transfer" in Acta Veterinaria-Beograd, 67, no. 4 (2017):508-524,
https://doi.org/10.1515/acve-2017-0041 . .

TY  - JOUR
AU  - Bjelica, Jelena
AU  - Jovanović, Ivan B.
AU  - Ilić, Vesna
AU  - Valčić, Olivera
AU  - Kirovski, Danijela
AU  - Gvozdić, Dragan
AU  - Milanović, Svetlana
PY  - 2017
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1535
AB  - Both selenium, as an effector and regulator of antioxidative enzymes activity, and thyroid hormones are potent immunomodulators. Besides, selenium incorporated into iodothyronine deiodinases is involved in the thyroid function and thus indirectly regulates the immune response. Studies of the mutual infl uence of selenium and thyroid hormones on the immune response are scarce, hence we analyzed the effects of an iodothyronine deiodinases blocker, propylthiouracil (PTU), and selenium defi ciency on the function of peritoneal macrophages, and titer of naturally occurring anti-sheep red blood cells (SRBC) IgM antibodies in juvenile rats. The experiment was carried out on 64 Wistar male rats allotted to 4 groups: controlselenium adequate PTU-group; selenium adequate, PTU+ group; selenium defi cient, PTU-group; and selenium defi cient, PTU+. The selenium adequate and selenium defi cient groups were fed a diet containing 0.334 and 0.031 mg Se/kg, respectively. PTU+ groups received PTU (150 mg/L) in drinking water. After 3 weeks, thyroxine (T-4), triiodothyronine (T-3), and thyroid stimulating hormone (TSH) were determined. The animals having intermediate concentrations of T-3 (1.56-1.69 nmol/L) and T 4 (41-50 nmol/L) were excluded from further analysis. Thus, PTU+ groups included hypothyroid animals (T-3 <= 1.55 nmol/L; T-4 <= 40 nmol/L), while PTU-groups included euthyroid rats (T-3 <= 1.70 nmol/L; T-4 <= 50 nmol/L). Both groups of selenium defi cient rats had, when compared to the control group, a signifi cantly lower activity of glutathione peroxidase GPx1 and GPx3. Neither selenium defi ciency nor PTU infl uenced the adherence of peritoneal macrophages. Selenium defi ciency signifi cantly decreased the peroxide synthesis in macrophages and signifi cantly increased the titer of anti-SRBC IgM. Hypotyroidism alone or in combination with selenium defi ciency had no infl uence on these parameters.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Effects of selenium and thyroid hormone deficiency on peritoneal macrophages adhesion and occurrence of natural IGM antibodies in juvenile rats
VL  - 67
IS  - 3
SP  - 340
EP  - 355
DO  - 10.1515/acve-2017-0028
ER  - 

@article{
author = "Bjelica, Jelena and Jovanović, Ivan B. and Ilić, Vesna and Valčić, Olivera and Kirovski, Danijela and Gvozdić, Dragan and Milanović, Svetlana",
year = "2017",
abstract = "Both selenium, as an effector and regulator of antioxidative enzymes activity, and thyroid hormones are potent immunomodulators. Besides, selenium incorporated into iodothyronine deiodinases is involved in the thyroid function and thus indirectly regulates the immune response. Studies of the mutual infl uence of selenium and thyroid hormones on the immune response are scarce, hence we analyzed the effects of an iodothyronine deiodinases blocker, propylthiouracil (PTU), and selenium defi ciency on the function of peritoneal macrophages, and titer of naturally occurring anti-sheep red blood cells (SRBC) IgM antibodies in juvenile rats. The experiment was carried out on 64 Wistar male rats allotted to 4 groups: controlselenium adequate PTU-group; selenium adequate, PTU+ group; selenium defi cient, PTU-group; and selenium defi cient, PTU+. The selenium adequate and selenium defi cient groups were fed a diet containing 0.334 and 0.031 mg Se/kg, respectively. PTU+ groups received PTU (150 mg/L) in drinking water. After 3 weeks, thyroxine (T-4), triiodothyronine (T-3), and thyroid stimulating hormone (TSH) were determined. The animals having intermediate concentrations of T-3 (1.56-1.69 nmol/L) and T 4 (41-50 nmol/L) were excluded from further analysis. Thus, PTU+ groups included hypothyroid animals (T-3 <= 1.55 nmol/L; T-4 <= 40 nmol/L), while PTU-groups included euthyroid rats (T-3 <= 1.70 nmol/L; T-4 <= 50 nmol/L). Both groups of selenium defi cient rats had, when compared to the control group, a signifi cantly lower activity of glutathione peroxidase GPx1 and GPx3. Neither selenium defi ciency nor PTU infl uenced the adherence of peritoneal macrophages. Selenium defi ciency signifi cantly decreased the peroxide synthesis in macrophages and signifi cantly increased the titer of anti-SRBC IgM. Hypotyroidism alone or in combination with selenium defi ciency had no infl uence on these parameters.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Effects of selenium and thyroid hormone deficiency on peritoneal macrophages adhesion and occurrence of natural IGM antibodies in juvenile rats",
volume = "67",
number = "3",
pages = "340-355",
doi = "10.1515/acve-2017-0028"
}

Bjelica, J., Jovanović, I. B., Ilić, V., Valčić, O., Kirovski, D., Gvozdić, D.,& Milanović, S.. (2017). Effects of selenium and thyroid hormone deficiency on peritoneal macrophages adhesion and occurrence of natural IGM antibodies in juvenile rats. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 67(3), 340-355.
https://doi.org/10.1515/acve-2017-0028

Bjelica J, Jovanović IB, Ilić V, Valčić O, Kirovski D, Gvozdić D, Milanović S. Effects of selenium and thyroid hormone deficiency on peritoneal macrophages adhesion and occurrence of natural IGM antibodies in juvenile rats. in Acta Veterinaria-Beograd. 2017;67(3):340-355.
doi:10.1515/acve-2017-0028 .

Bjelica, Jelena, Jovanović, Ivan B., Ilić, Vesna, Valčić, Olivera, Kirovski, Danijela, Gvozdić, Dragan, Milanović, Svetlana, "Effects of selenium and thyroid hormone deficiency on peritoneal macrophages adhesion and occurrence of natural IGM antibodies in juvenile rats" in Acta Veterinaria-Beograd, 67, no. 3 (2017):340-355,
https://doi.org/10.1515/acve-2017-0028 . .

TY  - JOUR
AU  - Bojkovski, Jovan
AU  - Ilić, Vesna
AU  - Vasić, A.
AU  - Maletić, Jelena
AU  - Vakanjac, Slobodanka
AU  - Savić, S.
AU  - Štukelj, Marina
AU  - Zdravković, Nemanja
AU  - Tzika, E. D.
AU  - Niculae, Mihaela
AU  - Milanov, Dubravka
PY  - 2017
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1525
AB  - The aim of the present study was to determine the porcine circovirus type 2 (PCV2) prevalence in boars in 3 farms in Serbia and their possible relation with alterations of reproductive parameters and blood biochemical parameters [total protein, urea, creatinine and aspartate transaminase levels (AST)]. The prevalence of (PCV2) was evaluated by the presence of specific antibodies. An ELISA assay was used for the detection of PCV2 antibodies in 58 boars' blood sera from Serbian commercial farms, among which 48 were from and reared in the Serbian farms, and 10 were imported from different European Union (EU) countries. Anti PCV2 IgM and/or IgG were detected in sera of 51 (87.93%) boars. Based on the type of antibodies (IgM and IgG PCV2 antibodies), it was concluded that chronic PCV2 infection was the predominant type in tested boars. The imported boars did not have an active infection titer. Biochemical tests in blood didn't show significant differences between PCV2 positive and negative boars. The recorded high prevalence of PCV2 antibodies among boars indirectly proved that PCV2 has been wide spread in the examined farms. Significant difference in the frequency of active, recent and chronic PCV2 infection in boars was found among three farms (p  lt  0.05). Imported boars did not show significant difference in terms of active, recent or chronic PCV2 infection in comparison with boars deriving from Serbian farms (p > 0.05). Among boars of three different breeds (Landrace, Duroc and Yorkshire), a significantly higher prevalence of PCV2 antibodies was revealed in Landrace boars (p=0.003). Reproductive parameters of sows that were inseminated with PCV2 positive or negative boars' semen, showed similar farrowing rate, as well as percentage of live and stillborn piglets, thus indicating that the observed chronic PCV2 infection did not affect significantly the breeding capability of boars.
PB  - Hellenic Veterinary Medical Soc, Athens
T2  - Journal of the Hellenic Veterinary Medical Society
T1  - Investigation of Porcine Circovirus type 2 (PCV2) antibodies in clinically healthy boars from Serbian commercial farms
VL  - 68
IS  - 3
SP  - 347
EP  - 354
DO  - 10.12681/jhvms.15488
ER  - 

@article{
author = "Bojkovski, Jovan and Ilić, Vesna and Vasić, A. and Maletić, Jelena and Vakanjac, Slobodanka and Savić, S. and Štukelj, Marina and Zdravković, Nemanja and Tzika, E. D. and Niculae, Mihaela and Milanov, Dubravka",
year = "2017",
abstract = "The aim of the present study was to determine the porcine circovirus type 2 (PCV2) prevalence in boars in 3 farms in Serbia and their possible relation with alterations of reproductive parameters and blood biochemical parameters [total protein, urea, creatinine and aspartate transaminase levels (AST)]. The prevalence of (PCV2) was evaluated by the presence of specific antibodies. An ELISA assay was used for the detection of PCV2 antibodies in 58 boars' blood sera from Serbian commercial farms, among which 48 were from and reared in the Serbian farms, and 10 were imported from different European Union (EU) countries. Anti PCV2 IgM and/or IgG were detected in sera of 51 (87.93%) boars. Based on the type of antibodies (IgM and IgG PCV2 antibodies), it was concluded that chronic PCV2 infection was the predominant type in tested boars. The imported boars did not have an active infection titer. Biochemical tests in blood didn't show significant differences between PCV2 positive and negative boars. The recorded high prevalence of PCV2 antibodies among boars indirectly proved that PCV2 has been wide spread in the examined farms. Significant difference in the frequency of active, recent and chronic PCV2 infection in boars was found among three farms (p  lt  0.05). Imported boars did not show significant difference in terms of active, recent or chronic PCV2 infection in comparison with boars deriving from Serbian farms (p > 0.05). Among boars of three different breeds (Landrace, Duroc and Yorkshire), a significantly higher prevalence of PCV2 antibodies was revealed in Landrace boars (p=0.003). Reproductive parameters of sows that were inseminated with PCV2 positive or negative boars' semen, showed similar farrowing rate, as well as percentage of live and stillborn piglets, thus indicating that the observed chronic PCV2 infection did not affect significantly the breeding capability of boars.",
publisher = "Hellenic Veterinary Medical Soc, Athens",
journal = "Journal of the Hellenic Veterinary Medical Society",
title = "Investigation of Porcine Circovirus type 2 (PCV2) antibodies in clinically healthy boars from Serbian commercial farms",
volume = "68",
number = "3",
pages = "347-354",
doi = "10.12681/jhvms.15488"
}

Bojkovski, J., Ilić, V., Vasić, A., Maletić, J., Vakanjac, S., Savić, S., Štukelj, M., Zdravković, N., Tzika, E. D., Niculae, M.,& Milanov, D.. (2017). Investigation of Porcine Circovirus type 2 (PCV2) antibodies in clinically healthy boars from Serbian commercial farms. in Journal of the Hellenic Veterinary Medical Society
Hellenic Veterinary Medical Soc, Athens., 68(3), 347-354.
https://doi.org/10.12681/jhvms.15488

Bojkovski J, Ilić V, Vasić A, Maletić J, Vakanjac S, Savić S, Štukelj M, Zdravković N, Tzika ED, Niculae M, Milanov D. Investigation of Porcine Circovirus type 2 (PCV2) antibodies in clinically healthy boars from Serbian commercial farms. in Journal of the Hellenic Veterinary Medical Society. 2017;68(3):347-354.
doi:10.12681/jhvms.15488 .

Bojkovski, Jovan, Ilić, Vesna, Vasić, A., Maletić, Jelena, Vakanjac, Slobodanka, Savić, S., Štukelj, Marina, Zdravković, Nemanja, Tzika, E. D., Niculae, Mihaela, Milanov, Dubravka, "Investigation of Porcine Circovirus type 2 (PCV2) antibodies in clinically healthy boars from Serbian commercial farms" in Journal of the Hellenic Veterinary Medical Society, 68, no. 3 (2017):347-354,
https://doi.org/10.12681/jhvms.15488 . .

TY  - JOUR
AU  - Kovacić, Marijana
AU  - Marković, Dragana
AU  - Maslovarić, Irina
AU  - Obrenović, Sonja
AU  - Grujic-Milanović, Jelica
AU  - Arsić, Aleksandra
AU  - Milanović, Zorana
AU  - Savić, Olivera
AU  - Fratrić, Natalija
AU  - Ilić, Vesna
PY  - 2017
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1478
AB  - Calf bronchopneumonia is complex multifactorial disease and for its accurate diagnosis and therapy, besides clinical examination, microbiologic, hematologic and biochemical analyses could be necessary. In general, additional analyses are not implemented, mainly because the disease biomarkers are not defined. To establish which analysis might be useful for determining the severity of the disease, we analyzed 23 three-month old calves with mild clinical signs of bronchopneumonia and 15 age-matched healthy calves. Pasteurella multocida was isolated from deep nasal swabs of diseased calves. Peripheral blood erythrocyte and leukocyte count of bronchopneumonic and healthy calves showed no difference. Serum proteins, lipoproteins and lipids were analyzed with spectrophotometry, agarose gel electrophoresis, non-reducing SDSPAGE, gel zymography, and thin-layer chromatography. The bronchopneumonic calves had an increased level of circulating immune complexes and a globulins, which contain some of the positive acute phase proteins. In diseased calves the increased concentration of total. globulins (IgG), due to an increased concentration of anionic. globulins (predominately IgG1), was detected. The increased concentration of anionic. globulins followed by increased concentration of transferrin (negative acute phase protein) and HDL cholesterol, decreased concentration of LDL-cholesterol, unchanged activity of matrix metalloproteases and leukocyte counts might reflect the obvious absence of generalized inflammation. A positive correlation was found between the acquired results and the appearance of mild clinical signs. Therefore, we believe that the parameters analyzed in the peripheral blood could be applied as reliable disease markers to distinguish between severe (inflammatory) and mild forms of calf bronchopneumonia and to predict a better outcome for these calves.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Serum proteins and lipids in mild form of calf bronchopneumonia: candidates for reliable biomarkers
VL  - 67
IS  - 2
SP  - 207
EP  - 227
DO  - 10.1515/acve-2017-0018
ER  - 

@article{
author = "Kovacić, Marijana and Marković, Dragana and Maslovarić, Irina and Obrenović, Sonja and Grujic-Milanović, Jelica and Arsić, Aleksandra and Milanović, Zorana and Savić, Olivera and Fratrić, Natalija and Ilić, Vesna",
year = "2017",
abstract = "Calf bronchopneumonia is complex multifactorial disease and for its accurate diagnosis and therapy, besides clinical examination, microbiologic, hematologic and biochemical analyses could be necessary. In general, additional analyses are not implemented, mainly because the disease biomarkers are not defined. To establish which analysis might be useful for determining the severity of the disease, we analyzed 23 three-month old calves with mild clinical signs of bronchopneumonia and 15 age-matched healthy calves. Pasteurella multocida was isolated from deep nasal swabs of diseased calves. Peripheral blood erythrocyte and leukocyte count of bronchopneumonic and healthy calves showed no difference. Serum proteins, lipoproteins and lipids were analyzed with spectrophotometry, agarose gel electrophoresis, non-reducing SDSPAGE, gel zymography, and thin-layer chromatography. The bronchopneumonic calves had an increased level of circulating immune complexes and a globulins, which contain some of the positive acute phase proteins. In diseased calves the increased concentration of total. globulins (IgG), due to an increased concentration of anionic. globulins (predominately IgG1), was detected. The increased concentration of anionic. globulins followed by increased concentration of transferrin (negative acute phase protein) and HDL cholesterol, decreased concentration of LDL-cholesterol, unchanged activity of matrix metalloproteases and leukocyte counts might reflect the obvious absence of generalized inflammation. A positive correlation was found between the acquired results and the appearance of mild clinical signs. Therefore, we believe that the parameters analyzed in the peripheral blood could be applied as reliable disease markers to distinguish between severe (inflammatory) and mild forms of calf bronchopneumonia and to predict a better outcome for these calves.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Serum proteins and lipids in mild form of calf bronchopneumonia: candidates for reliable biomarkers",
volume = "67",
number = "2",
pages = "207-227",
doi = "10.1515/acve-2017-0018"
}

Kovacić, M., Marković, D., Maslovarić, I., Obrenović, S., Grujic-Milanović, J., Arsić, A., Milanović, Z., Savić, O., Fratrić, N.,& Ilić, V.. (2017). Serum proteins and lipids in mild form of calf bronchopneumonia: candidates for reliable biomarkers. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 67(2), 207-227.
https://doi.org/10.1515/acve-2017-0018

Kovacić M, Marković D, Maslovarić I, Obrenović S, Grujic-Milanović J, Arsić A, Milanović Z, Savić O, Fratrić N, Ilić V. Serum proteins and lipids in mild form of calf bronchopneumonia: candidates for reliable biomarkers. in Acta Veterinaria-Beograd. 2017;67(2):207-227.
doi:10.1515/acve-2017-0018 .

Kovacić, Marijana, Marković, Dragana, Maslovarić, Irina, Obrenović, Sonja, Grujic-Milanović, Jelica, Arsić, Aleksandra, Milanović, Zorana, Savić, Olivera, Fratrić, Natalija, Ilić, Vesna, "Serum proteins and lipids in mild form of calf bronchopneumonia: candidates for reliable biomarkers" in Acta Veterinaria-Beograd, 67, no. 2 (2017):207-227,
https://doi.org/10.1515/acve-2017-0018 . .

TY  - JOUR
AU  - Buac, Marijana
AU  - Mojsilović, Slavko
AU  - Mišić, Dušan
AU  - Vuković, Dejan
AU  - Savić, Olivera
AU  - Valčić, Olivera
AU  - Marković, Dragana
AU  - Gvozdić, Dragan
AU  - Ilić, Vesna
AU  - Fratrić, Natalija
PY  - 2016
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1403
AB  - In this work we studied if circulating immune complexes (CIC) of calves with bronchopneumonia have the capacity to modulate function of peripheral blood leukocytes of healthy cattle. CIC of three month old calves (6 healthy and 6 diseased) were isolated by PEG precipitation. Peripheral blood mononuclear cells (MNCs) and granulocytes from healthy calves and cows were the CIC responder cells in in vitro tests. The most remarkable increase of adhesiveness to polystyrene and ROS synthesis (assessed by NBT test) was detected in cows granulocytes stimulated with CIC of diseased calves. Results of MTT test showed that CIC of both healthy and diseased calves reduced granulocytes viability. The strongest effect of inhibition of cows granulocytes resulted from CIC of diseased calves. CIC only moderately reduced spontaneous viability of calves MNCs. Again, the strongest effect of CIC isolated from diseased calves was observed. In contrast to the low impact of CIC on non-stimulated cells, their inhibitory effect on viability of mitogen stimulated MNCs was very strong. With CFSE assay we showed that both types of CIC stimulated spontaneous, but inhibited mitogen induced proliferation of calves MNCs. Propidium iodide staining reviled that CIC increased apoptosis/necrosis of both non-stimulated and mitogen stimulated MNCs. CIC of both healthy and diseased calves modulated the function of peripheral blood MNCs and granulocytes, but a stronger effect of CIC of diseased calves was shown. The age of the donors (calves or cows) of the responder cells, and the activation state of these cells, were also of influence.
PB  - Elsevier Sci Ltd, Oxford
T2  - Research in Veterinary Science
T1  - Circulating immune complexes of calves with bronchopneumonia modulate the function of peripheral blood leukocytes: In vitro evaluation
VL  - 106
SP  - 135
EP  - 142
DO  - 10.1016/j.rvsc.2016.04.002
ER  - 

@article{
author = "Buac, Marijana and Mojsilović, Slavko and Mišić, Dušan and Vuković, Dejan and Savić, Olivera and Valčić, Olivera and Marković, Dragana and Gvozdić, Dragan and Ilić, Vesna and Fratrić, Natalija",
year = "2016",
abstract = "In this work we studied if circulating immune complexes (CIC) of calves with bronchopneumonia have the capacity to modulate function of peripheral blood leukocytes of healthy cattle. CIC of three month old calves (6 healthy and 6 diseased) were isolated by PEG precipitation. Peripheral blood mononuclear cells (MNCs) and granulocytes from healthy calves and cows were the CIC responder cells in in vitro tests. The most remarkable increase of adhesiveness to polystyrene and ROS synthesis (assessed by NBT test) was detected in cows granulocytes stimulated with CIC of diseased calves. Results of MTT test showed that CIC of both healthy and diseased calves reduced granulocytes viability. The strongest effect of inhibition of cows granulocytes resulted from CIC of diseased calves. CIC only moderately reduced spontaneous viability of calves MNCs. Again, the strongest effect of CIC isolated from diseased calves was observed. In contrast to the low impact of CIC on non-stimulated cells, their inhibitory effect on viability of mitogen stimulated MNCs was very strong. With CFSE assay we showed that both types of CIC stimulated spontaneous, but inhibited mitogen induced proliferation of calves MNCs. Propidium iodide staining reviled that CIC increased apoptosis/necrosis of both non-stimulated and mitogen stimulated MNCs. CIC of both healthy and diseased calves modulated the function of peripheral blood MNCs and granulocytes, but a stronger effect of CIC of diseased calves was shown. The age of the donors (calves or cows) of the responder cells, and the activation state of these cells, were also of influence.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Research in Veterinary Science",
title = "Circulating immune complexes of calves with bronchopneumonia modulate the function of peripheral blood leukocytes: In vitro evaluation",
volume = "106",
pages = "135-142",
doi = "10.1016/j.rvsc.2016.04.002"
}

Buac, M., Mojsilović, S., Mišić, D., Vuković, D., Savić, O., Valčić, O., Marković, D., Gvozdić, D., Ilić, V.,& Fratrić, N.. (2016). Circulating immune complexes of calves with bronchopneumonia modulate the function of peripheral blood leukocytes: In vitro evaluation. in Research in Veterinary Science
Elsevier Sci Ltd, Oxford., 106, 135-142.
https://doi.org/10.1016/j.rvsc.2016.04.002

Buac M, Mojsilović S, Mišić D, Vuković D, Savić O, Valčić O, Marković D, Gvozdić D, Ilić V, Fratrić N. Circulating immune complexes of calves with bronchopneumonia modulate the function of peripheral blood leukocytes: In vitro evaluation. in Research in Veterinary Science. 2016;106:135-142.
doi:10.1016/j.rvsc.2016.04.002 .

Buac, Marijana, Mojsilović, Slavko, Mišić, Dušan, Vuković, Dejan, Savić, Olivera, Valčić, Olivera, Marković, Dragana, Gvozdić, Dragan, Ilić, Vesna, Fratrić, Natalija, "Circulating immune complexes of calves with bronchopneumonia modulate the function of peripheral blood leukocytes: In vitro evaluation" in Research in Veterinary Science, 106 (2016):135-142,
https://doi.org/10.1016/j.rvsc.2016.04.002 . .

TY  - JOUR
AU  - Obrenović, Sonja
AU  - Ristanović, Elizabeta
AU  - Cekanac, Radovan
AU  - Radulović, Željko
AU  - Ilić, Vesna
PY  - 2015
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1179
AB  - In this study the seroprevalence of anti-Borrelia burgdorferi IgG antibodies in populations of naturally exposed dogs in the Belgrade area was determined. Serum samples of 215 dogs were tested with in-house made indirect immunofluorescent-antibody assay (IFA), enzyme-linked immunosorbent assay (ELISA), and Western blot assay (WB). Sera were from 34 pet dogs suspected of having Lyme borreliosis, 41 hunting dogs, 125 shelter dogs, and 15 clinically healthy pet dogs. Results of WB were used as a standard against which the performances of ELISA and IFA were evaluated. ELISA was significantly more sensitive than IFA (84.8 vs 67.9%), whereas the specificities of these tests were just slightly different (94.4% vs 92.6 %). Borrelia burgdorferi seroprevalence of 24.7% among tested dogs was recorded by WB test. The highest seroprevalence of 31.2% was found in the group of shelter dogs, while hunting and pet dogs showed lower seroprevalence of 19.5% and 17.6%, but the difference was statistically insignificant. These results are the first report on the seroprevalence of IgG antibodies to B. burgdorferi in dogs in the Belgrade area and could be of importance in the assessment of the risk of infection with B. burgdorferi in human population.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Seroprevalence of igg antibodies against borrelia burgdorferi in dogs in Belgrade area, Serbia
VL  - 65
IS  - 1
SP  - 99
EP  - 110
DO  - 10.1515/acve-2015-0008
ER  - 

@article{
author = "Obrenović, Sonja and Ristanović, Elizabeta and Cekanac, Radovan and Radulović, Željko and Ilić, Vesna",
year = "2015",
abstract = "In this study the seroprevalence of anti-Borrelia burgdorferi IgG antibodies in populations of naturally exposed dogs in the Belgrade area was determined. Serum samples of 215 dogs were tested with in-house made indirect immunofluorescent-antibody assay (IFA), enzyme-linked immunosorbent assay (ELISA), and Western blot assay (WB). Sera were from 34 pet dogs suspected of having Lyme borreliosis, 41 hunting dogs, 125 shelter dogs, and 15 clinically healthy pet dogs. Results of WB were used as a standard against which the performances of ELISA and IFA were evaluated. ELISA was significantly more sensitive than IFA (84.8 vs 67.9%), whereas the specificities of these tests were just slightly different (94.4% vs 92.6 %). Borrelia burgdorferi seroprevalence of 24.7% among tested dogs was recorded by WB test. The highest seroprevalence of 31.2% was found in the group of shelter dogs, while hunting and pet dogs showed lower seroprevalence of 19.5% and 17.6%, but the difference was statistically insignificant. These results are the first report on the seroprevalence of IgG antibodies to B. burgdorferi in dogs in the Belgrade area and could be of importance in the assessment of the risk of infection with B. burgdorferi in human population.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Seroprevalence of igg antibodies against borrelia burgdorferi in dogs in Belgrade area, Serbia",
volume = "65",
number = "1",
pages = "99-110",
doi = "10.1515/acve-2015-0008"
}

Obrenović, S., Ristanović, E., Cekanac, R., Radulović, Ž.,& Ilić, V.. (2015). Seroprevalence of igg antibodies against borrelia burgdorferi in dogs in Belgrade area, Serbia. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 65(1), 99-110.
https://doi.org/10.1515/acve-2015-0008

Obrenović S, Ristanović E, Cekanac R, Radulović Ž, Ilić V. Seroprevalence of igg antibodies against borrelia burgdorferi in dogs in Belgrade area, Serbia. in Acta Veterinaria-Beograd. 2015;65(1):99-110.
doi:10.1515/acve-2015-0008 .

Obrenović, Sonja, Ristanović, Elizabeta, Cekanac, Radovan, Radulović, Željko, Ilić, Vesna, "Seroprevalence of igg antibodies against borrelia burgdorferi in dogs in Belgrade area, Serbia" in Acta Veterinaria-Beograd, 65, no. 1 (2015):99-110,
https://doi.org/10.1515/acve-2015-0008 . .

TY  - JOUR
AU  - Fratrić, Natalija
AU  - Gvozdić, Dragan
AU  - Vuković, Dejan
AU  - Savić, Olivera
AU  - Buac, Marijana
AU  - Ilić, Vesna
PY  - 2012
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/933
AB  - Immune complexes (IC) could have an important role in the pathogenesis of pre-ruminant calves bronchopneumonia. IC are potent activators of complement and neutrophils and they might be responsible for immune protection, as well as for pulmonary damage. Immunoglobulin G (IgG), as constituents of IC, initiates the effector phase of immune response through binding of Fc gamma and complement receptors. The oligosaccharide moieties expressed on IgG can modulate their antigen affinity and effector function. Structural characteristics of IgG molecules from IC in the pre-ruminant calves have not been studied in detail. The aim of our study was to determine if the glycosylation profile of IgG from circulating IC (CIC) in calves with bronchopneumonia differed from those of healthy control calves. A total number of 13 Holstein-Friesian calves, at the age of three months were included in the study. All calves were clinically examined by a veterinarian. Calves were classified by signs of respiratory disease in two groups: healthy (n = 6) and diseased (n = 7) calves. The CIC from calves sera were isolated by the polyethylene glycol precipitation (PEG) method. IgG molecules were isolated from PEG precipitates by Protein G affinity method. The level of expression and localization N-acetylglucosamine, galactose, sialic acid, and fucose within the isolated IgG was determined by lectin blot assay. Calves with bronchopneumonia had a statistically significantly increased level of CIC. IgG molecule:, were isolated from CIC of both healthy and diseased calves. Several other proteins in complex with IgG were detected in both groups of animals. The isolated IgG heavy chains of healthy calves expressed N-acetylglucosamine, galactose, sialic acid, and fucose. The light chains of IgG expressed N-acetylglucosamine, sialic acid, and fucose whereas galactose was not detected in healthy calves. In diseased animals, galactose was detected on light chains, and both heavy and light IgG chains were more sialylated. Proteins in complex with IgG were also lectin reactive, and their glycosylation in diseased animals was different compared to healthy controls. Increased sialylation is a characteristic of anti-inflammatory IgG. The increased sialylation of IgG from CIC in bronchopneumonia might be an attempt of immune system of calves to protect lung tissues against damages provoked by activated cells and secreted pro-inflammatory cytokines. At the same time, increased IgG sialylation could explain the inability of calves immune system to initiate the process of antigen elimination by activation of Fc gamma receptors.
PB  - Elsevier, Amsterdam
T2  - Veterinary Immunology and Immunopathology
T1  - Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes  IgG
VL  - 150
IS  - 3-4
SP  - 161
EP  - 168
DO  - 10.1016/j.vetimm.2012.09.009
ER  - 

@article{
author = "Fratrić, Natalija and Gvozdić, Dragan and Vuković, Dejan and Savić, Olivera and Buac, Marijana and Ilić, Vesna",
year = "2012",
abstract = "Immune complexes (IC) could have an important role in the pathogenesis of pre-ruminant calves bronchopneumonia. IC are potent activators of complement and neutrophils and they might be responsible for immune protection, as well as for pulmonary damage. Immunoglobulin G (IgG), as constituents of IC, initiates the effector phase of immune response through binding of Fc gamma and complement receptors. The oligosaccharide moieties expressed on IgG can modulate their antigen affinity and effector function. Structural characteristics of IgG molecules from IC in the pre-ruminant calves have not been studied in detail. The aim of our study was to determine if the glycosylation profile of IgG from circulating IC (CIC) in calves with bronchopneumonia differed from those of healthy control calves. A total number of 13 Holstein-Friesian calves, at the age of three months were included in the study. All calves were clinically examined by a veterinarian. Calves were classified by signs of respiratory disease in two groups: healthy (n = 6) and diseased (n = 7) calves. The CIC from calves sera were isolated by the polyethylene glycol precipitation (PEG) method. IgG molecules were isolated from PEG precipitates by Protein G affinity method. The level of expression and localization N-acetylglucosamine, galactose, sialic acid, and fucose within the isolated IgG was determined by lectin blot assay. Calves with bronchopneumonia had a statistically significantly increased level of CIC. IgG molecule:, were isolated from CIC of both healthy and diseased calves. Several other proteins in complex with IgG were detected in both groups of animals. The isolated IgG heavy chains of healthy calves expressed N-acetylglucosamine, galactose, sialic acid, and fucose. The light chains of IgG expressed N-acetylglucosamine, sialic acid, and fucose whereas galactose was not detected in healthy calves. In diseased animals, galactose was detected on light chains, and both heavy and light IgG chains were more sialylated. Proteins in complex with IgG were also lectin reactive, and their glycosylation in diseased animals was different compared to healthy controls. Increased sialylation is a characteristic of anti-inflammatory IgG. The increased sialylation of IgG from CIC in bronchopneumonia might be an attempt of immune system of calves to protect lung tissues against damages provoked by activated cells and secreted pro-inflammatory cytokines. At the same time, increased IgG sialylation could explain the inability of calves immune system to initiate the process of antigen elimination by activation of Fc gamma receptors.",
publisher = "Elsevier, Amsterdam",
journal = "Veterinary Immunology and Immunopathology",
title = "Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes  IgG",
volume = "150",
number = "3-4",
pages = "161-168",
doi = "10.1016/j.vetimm.2012.09.009"
}

Fratrić, N., Gvozdić, D., Vuković, D., Savić, O., Buac, M.,& Ilić, V.. (2012). Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes  IgG. in Veterinary Immunology and Immunopathology
Elsevier, Amsterdam., 150(3-4), 161-168.
https://doi.org/10.1016/j.vetimm.2012.09.009

Fratrić N, Gvozdić D, Vuković D, Savić O, Buac M, Ilić V. Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes  IgG. in Veterinary Immunology and Immunopathology. 2012;150(3-4):161-168.
doi:10.1016/j.vetimm.2012.09.009 .

Fratrić, Natalija, Gvozdić, Dragan, Vuković, Dejan, Savić, Olivera, Buac, Marijana, Ilić, Vesna, "Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes  IgG" in Veterinary Immunology and Immunopathology, 150, no. 3-4 (2012):161-168,
https://doi.org/10.1016/j.vetimm.2012.09.009 . .

TY  - JOUR
AU  - Kovačević-Filipović, Milica
AU  - Ilić, Vesna
AU  - Vujcić, Zoran
AU  - Dojnov, Biljana
AU  - Stevanov-Pavlović, Marija
AU  - Mijačević, Zora
AU  - Božić, Tatjana
PY  - 2012
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/892
AB  - Serum amyloid A proteins (SAA) are very sensitive acute phase proteins, displaying multiple isoforms in plasma and different body fluids. They are currently under investigation as biomarkers of diseases. The aim of the present study was to compare the concentration and isoform expression of SAA in serum and milk of cows with bacteriologically negative milk (control group) and naturally occurring Staphylococcus aureus (S. aureus) subclinical mastitis (subclinical mastitis group). Somatic cell count (SCC) and bacteriological analyses were performed to establish the control and subclinical mastitis group. SAA concentration was evaluated using a commercial ELISA kit, while expression of different isoforms (serum A-SAA and milk M-SAA3 isoforms) was visualized by denaturing isoelectrical focusing and immunoblotting. The SAA concentrations in sera and milk of cows in the subclinical mastitis group were three and 100 times higher than in those from the control group of cows, respectively. Cows in the subclinical mastitis group had more acidic SAA isoforms in serum with the most prominent one at pI 5.5. This isoform was not detected in sera from the control group. Milk samples in the subclinical mastitis group contained abundant highly alkaline M-SAA3 isoforms and most of the serum isoforms, except for that at pI 5.5. In the subclinical mastitis group SAA isoforms with equivalent pI as serum isoforms accounted for 20% of the total SAA concentration in milk. There were significant differences in the concentrations and isoform patterns of SAA in serum and milk between the control and subclinical mastitis groups of cows. Also, we demonstrated that serum SAA isoforms were not transferred to milk proportion to their plasma content.
PB  - Elsevier, Amsterdam
T2  - Veterinary Immunology and Immunopathology
T1  - Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis
VL  - 145
IS  - 1-2
SP  - 120
EP  - 128
DO  - 10.1016/j.vetimm.2011.10.015
ER  - 

@article{
author = "Kovačević-Filipović, Milica and Ilić, Vesna and Vujcić, Zoran and Dojnov, Biljana and Stevanov-Pavlović, Marija and Mijačević, Zora and Božić, Tatjana",
year = "2012",
abstract = "Serum amyloid A proteins (SAA) are very sensitive acute phase proteins, displaying multiple isoforms in plasma and different body fluids. They are currently under investigation as biomarkers of diseases. The aim of the present study was to compare the concentration and isoform expression of SAA in serum and milk of cows with bacteriologically negative milk (control group) and naturally occurring Staphylococcus aureus (S. aureus) subclinical mastitis (subclinical mastitis group). Somatic cell count (SCC) and bacteriological analyses were performed to establish the control and subclinical mastitis group. SAA concentration was evaluated using a commercial ELISA kit, while expression of different isoforms (serum A-SAA and milk M-SAA3 isoforms) was visualized by denaturing isoelectrical focusing and immunoblotting. The SAA concentrations in sera and milk of cows in the subclinical mastitis group were three and 100 times higher than in those from the control group of cows, respectively. Cows in the subclinical mastitis group had more acidic SAA isoforms in serum with the most prominent one at pI 5.5. This isoform was not detected in sera from the control group. Milk samples in the subclinical mastitis group contained abundant highly alkaline M-SAA3 isoforms and most of the serum isoforms, except for that at pI 5.5. In the subclinical mastitis group SAA isoforms with equivalent pI as serum isoforms accounted for 20% of the total SAA concentration in milk. There were significant differences in the concentrations and isoform patterns of SAA in serum and milk between the control and subclinical mastitis groups of cows. Also, we demonstrated that serum SAA isoforms were not transferred to milk proportion to their plasma content.",
publisher = "Elsevier, Amsterdam",
journal = "Veterinary Immunology and Immunopathology",
title = "Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis",
volume = "145",
number = "1-2",
pages = "120-128",
doi = "10.1016/j.vetimm.2011.10.015"
}

Kovačević-Filipović, M., Ilić, V., Vujcić, Z., Dojnov, B., Stevanov-Pavlović, M., Mijačević, Z.,& Božić, T.. (2012). Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis. in Veterinary Immunology and Immunopathology
Elsevier, Amsterdam., 145(1-2), 120-128.
https://doi.org/10.1016/j.vetimm.2011.10.015

Kovačević-Filipović M, Ilić V, Vujcić Z, Dojnov B, Stevanov-Pavlović M, Mijačević Z, Božić T. Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis. in Veterinary Immunology and Immunopathology. 2012;145(1-2):120-128.
doi:10.1016/j.vetimm.2011.10.015 .

Kovačević-Filipović, Milica, Ilić, Vesna, Vujcić, Zoran, Dojnov, Biljana, Stevanov-Pavlović, Marija, Mijačević, Zora, Božić, Tatjana, "Serum amyloid A isoforms in serum and milk from cows with Staphylococcus aureus subclinical mastitis" in Veterinary Immunology and Immunopathology, 145, no. 1-2 (2012):120-128,
https://doi.org/10.1016/j.vetimm.2011.10.015 . .

TY  - JOUR
AU  - Fratrić, Natalija
AU  - Gvozdić, Dragan
AU  - Savić, Olivera
AU  - Jagličić, Ivana
AU  - Ilić, Vesna
PY  - 2011
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/771
AB  - Pneumonia in preruminant calves is a multifactorial disease. Infectious agents, the environment, management and the immune status of the calves are all important factors in determining the outcome of an infection. Until today, the level and composition of circulating immune complexes in preruminant calves with pneumonia have not been studied in detail. We performed this work with the aim to determine whether pneumonia in three-month-old calves is followed by changes in the immune complex level and changes in the γ-globulin level as their possible constituents. Immune complexes from the calves' sera were isolated by polyethylene glycol (PEG) precipitation methods. Optical density at 350 nm (OD350) of redissolved precipitates was measured to determine the circulating immune complexes level. The OD350 level of PEG precipitates of calves with pneumonia at the time of diagnosis was 0.577±0.206 and it was statistically significantly higher (p lt 0.001) than OD350 the level of PEG precipitates of healthy calves (0.286±0.080). Electrophoretic analysis of sera and PEG precipitates showed that both slow and fast γ-globulins are found among serum and immune-complexes' γ-globulins, but the concentration of fast γ-globulins was significantly lower in sera of diseased calves. The level of PEG precipitable immune complexes was not correlated with the concentration of serum and PEG precipitable g-globulins. The results of this study have shown that by relatively simple PEG precipitation assay it is possible to detect an increased level of circulating immune complexes in calves with pneumonia. This can be used as an additional diagnostic parameter for the detection and follow up of the disease.
AB  - Oboljenja respiratornog trakta goveda su kompleksne etiologije, a javljaju se kao posledica interakcije imunskog sistema jedinke, stresogenih činilaca prisutnih u spoljašnjoj sredini i patogenih mikroorganizama. Nivo i uloga cirkulišućih imunskih kompleksa u serumima teladi obolelih od ove bolesti do sada nisu izučavani. Ovaj rad je urađen sa ciljem da se utvrdi da li su bolesti respiratornog trakta kod teladi u uzrastu od tri meseca praćene promenom nivoa imunskih kompleksa u serumu i promenom nivoa serumskih proteina, pre svega γ globulina, kao osnovnih konstituenata imunskih kompleksa. Imunski kompleksi iz seruma teladi su izolovani precipitacijom polietilen glikolom (PEG-om). Nivo PEG precipitabilnih imunskih kompleksa je određivan merenjem optičke gustine PEG precipitata na 350 nm (OD350). OD350 PEG precipitata obolele teladi je iznosila 0,577±0,206 i bila je statistički značajno viša (p lt 0,001) u odnosu na vrednosti dobijene kod zdrave teladi (OD350 = 0,286±0,080). U γ-globulinskoj frakciji seruma i PEG precipitata i zdrave i obolele teladi bili su prisutni i spori, katjonski, i brzi, anjonski γ-globulini, ali je koncentracija brzih γ-globulina bila značajno niža kod obolele teladi. Nivo ukupnih γ-globulina i γ-globulinskih frakcija nije statistički značajno korelirao sa nivoom PEG precipitabilnih imunskih kompleksa. Na osnovu dobijenih razultata može se zaključiti da se u serumima tri meseca starih teladi obolelih od bolesti respiratornog trakta detektuje povećan nivo PEG precipitabilnih imunskih kompleksa, a rezultati dobijeni ovim relativno jednostavnim testom mogu se koristiti kao dodatni parametar za dijagnozu i praćenje toka bolesti.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Veterinarski Glasnik
T1  - Immune complexes in blood serum of calves with clinical symptoms of bronchopneumonia
T1  - Imunski kompleksi u krvnom serumu teladi sa kliničkim simptomima bronhopneumonije
VL  - 65
IS  - 1-2
SP  - 13
EP  - 24
DO  - 10.2298/VETGL1102013F
ER  - 

@article{
author = "Fratrić, Natalija and Gvozdić, Dragan and Savić, Olivera and Jagličić, Ivana and Ilić, Vesna",
year = "2011",
abstract = "Pneumonia in preruminant calves is a multifactorial disease. Infectious agents, the environment, management and the immune status of the calves are all important factors in determining the outcome of an infection. Until today, the level and composition of circulating immune complexes in preruminant calves with pneumonia have not been studied in detail. We performed this work with the aim to determine whether pneumonia in three-month-old calves is followed by changes in the immune complex level and changes in the γ-globulin level as their possible constituents. Immune complexes from the calves' sera were isolated by polyethylene glycol (PEG) precipitation methods. Optical density at 350 nm (OD350) of redissolved precipitates was measured to determine the circulating immune complexes level. The OD350 level of PEG precipitates of calves with pneumonia at the time of diagnosis was 0.577±0.206 and it was statistically significantly higher (p lt 0.001) than OD350 the level of PEG precipitates of healthy calves (0.286±0.080). Electrophoretic analysis of sera and PEG precipitates showed that both slow and fast γ-globulins are found among serum and immune-complexes' γ-globulins, but the concentration of fast γ-globulins was significantly lower in sera of diseased calves. The level of PEG precipitable immune complexes was not correlated with the concentration of serum and PEG precipitable g-globulins. The results of this study have shown that by relatively simple PEG precipitation assay it is possible to detect an increased level of circulating immune complexes in calves with pneumonia. This can be used as an additional diagnostic parameter for the detection and follow up of the disease., Oboljenja respiratornog trakta goveda su kompleksne etiologije, a javljaju se kao posledica interakcije imunskog sistema jedinke, stresogenih činilaca prisutnih u spoljašnjoj sredini i patogenih mikroorganizama. Nivo i uloga cirkulišućih imunskih kompleksa u serumima teladi obolelih od ove bolesti do sada nisu izučavani. Ovaj rad je urađen sa ciljem da se utvrdi da li su bolesti respiratornog trakta kod teladi u uzrastu od tri meseca praćene promenom nivoa imunskih kompleksa u serumu i promenom nivoa serumskih proteina, pre svega γ globulina, kao osnovnih konstituenata imunskih kompleksa. Imunski kompleksi iz seruma teladi su izolovani precipitacijom polietilen glikolom (PEG-om). Nivo PEG precipitabilnih imunskih kompleksa je određivan merenjem optičke gustine PEG precipitata na 350 nm (OD350). OD350 PEG precipitata obolele teladi je iznosila 0,577±0,206 i bila je statistički značajno viša (p lt 0,001) u odnosu na vrednosti dobijene kod zdrave teladi (OD350 = 0,286±0,080). U γ-globulinskoj frakciji seruma i PEG precipitata i zdrave i obolele teladi bili su prisutni i spori, katjonski, i brzi, anjonski γ-globulini, ali je koncentracija brzih γ-globulina bila značajno niža kod obolele teladi. Nivo ukupnih γ-globulina i γ-globulinskih frakcija nije statistički značajno korelirao sa nivoom PEG precipitabilnih imunskih kompleksa. Na osnovu dobijenih razultata može se zaključiti da se u serumima tri meseca starih teladi obolelih od bolesti respiratornog trakta detektuje povećan nivo PEG precipitabilnih imunskih kompleksa, a rezultati dobijeni ovim relativno jednostavnim testom mogu se koristiti kao dodatni parametar za dijagnozu i praćenje toka bolesti.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Veterinarski Glasnik",
title = "Immune complexes in blood serum of calves with clinical symptoms of bronchopneumonia, Imunski kompleksi u krvnom serumu teladi sa kliničkim simptomima bronhopneumonije",
volume = "65",
number = "1-2",
pages = "13-24",
doi = "10.2298/VETGL1102013F"
}

Fratrić, N., Gvozdić, D., Savić, O., Jagličić, I.,& Ilić, V.. (2011). Immune complexes in blood serum of calves with clinical symptoms of bronchopneumonia. in Veterinarski Glasnik
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 65(1-2), 13-24.
https://doi.org/10.2298/VETGL1102013F

Fratrić N, Gvozdić D, Savić O, Jagličić I, Ilić V. Immune complexes in blood serum of calves with clinical symptoms of bronchopneumonia. in Veterinarski Glasnik. 2011;65(1-2):13-24.
doi:10.2298/VETGL1102013F .

Fratrić, Natalija, Gvozdić, Dragan, Savić, Olivera, Jagličić, Ivana, Ilić, Vesna, "Immune complexes in blood serum of calves with clinical symptoms of bronchopneumonia" in Veterinarski Glasnik, 65, no. 1-2 (2011):13-24,
https://doi.org/10.2298/VETGL1102013F . .

TY  - JOUR
AU  - Fratrić, Natalija
AU  - Ilić, Vesna
AU  - Milošević-Jovčić, Nadežda
AU  - Stojić, Velibor
PY  - 2010
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/668
AB  - Preruminant calves encounter numerous antigens, and formation of immune complexes is necessary for antigens elimination. The capability of immunologically immature calves to form immune complexes has not yet been studied in detail. For immune complexes studies, selective precipitation by PEG was performed, in combination with agarose gel electrophoresis and immunoelectrophoresis, with an aim to determine some properties of IgG, as constituents of immune complexes. In our previous work it was shown that the level of PEG precipitable immune complexes increased in the period from birth to 48-hours of life, decreased at day 10, increased in one month old animals, and after that, stayed unchanged until 4th month of age. Electrophoretic and immunoelectrophoretic analysis showed that until one month of age, calves' sera and PEG precipitates contained only one part of IgG molecules which corresponded to fast, anionic γ globulins. Although at the age of one month, preruminant calves' sera contained all molecular forms of IgG molecules present in the sera of adult cattle, only one part of serum IgG (fast, anionic IgG) was precipitated by PEG. In older calves, all molecular forms of serum IgG had the capacity to form PEG precipitable immune complexes. Presented data, as well as the results of our previous work, can be used as parameters with reference to physicochemical and immunochemical characteristics of IgG immune complexes of preruminant calves under pathological conditions.
AB  - Telad od rođenja dolazi u kontakt sa velikim brojem antigena za čije je efikasno uklanjanje neophodno formiranje imunokompleksa. Sposobnost ovih, još uvek imunološki nezrelih, životinja da formiraju iminokomplekse, kao i sastav njihovih konstituenata, nisu detaljno ispitivani. U ovom radu smo imunokomplekse iz seruma teladi izolovali precipitacijom polietilen glikolom (PEGom), a osobine IgG, kao potencijalnih konstituenata imunokompleksa, analizirali metodama elektroforeze i imunoelektroforeze. U našem prethodnom radu dokazali smo da se nivo PEG precipitabilnih imunokompleksa menja sa uzrastom teladi. On raste od rođenja do 48. sata, opada desetog dana, ponovo raste u prvom mesecu, nakon čega ostaje nepromenjen do četvrtog meseca starosti. Elekroforetske i imunoelektroforetske analize su ukazale da se u serumu i PEG precipitatima seruma teladi do mesec dana starosti nalazi samo jedna molekulska frakcija IgG koja odgovara brzim, anjonskim IgG. Iako se u serumima teladi već u prvom mesecu starosti nalaze sve molekulske forme IgG koje se nalaze i u serumu odraslih krava, samo jedan njihov deo (brzi, anjonski γ globulini) ima sposobnost da formira imune komplekse. Kod starijih teladi, kao i kod odraslih krava, sve molekulske forme serumskih IgG mogu da formiraju imune komplekse. Ovi rezultati, zajedno sa rezultatima našeg predhodnog rada, se mogu koristiti za dobijanje referentnog sistema vrednosti nivoa i sastava imunokompleksa kod zdravih teladi, a koji bi se mogao koristiti za određivanje nivoa i sastava imunokompleksa kod teladi u patološkim uslovima.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Electrophoretic and immunoelectrophoretic characteristics of IgG as a constituents of peg precipitable immune complexes in preruminant calves' sera
T1  - Elektroforetske i imunoelektroforetske karakteristike IgG kao konstituenata peg precipitabilnih imunokompleksa seruma kod teladi do četvrtog meseca starosti
VL  - 60
IS  - 2-3
SP  - 155
EP  - 164
DO  - 10.2298/AVB1003155F
ER  - 

@article{
author = "Fratrić, Natalija and Ilić, Vesna and Milošević-Jovčić, Nadežda and Stojić, Velibor",
year = "2010",
abstract = "Preruminant calves encounter numerous antigens, and formation of immune complexes is necessary for antigens elimination. The capability of immunologically immature calves to form immune complexes has not yet been studied in detail. For immune complexes studies, selective precipitation by PEG was performed, in combination with agarose gel electrophoresis and immunoelectrophoresis, with an aim to determine some properties of IgG, as constituents of immune complexes. In our previous work it was shown that the level of PEG precipitable immune complexes increased in the period from birth to 48-hours of life, decreased at day 10, increased in one month old animals, and after that, stayed unchanged until 4th month of age. Electrophoretic and immunoelectrophoretic analysis showed that until one month of age, calves' sera and PEG precipitates contained only one part of IgG molecules which corresponded to fast, anionic γ globulins. Although at the age of one month, preruminant calves' sera contained all molecular forms of IgG molecules present in the sera of adult cattle, only one part of serum IgG (fast, anionic IgG) was precipitated by PEG. In older calves, all molecular forms of serum IgG had the capacity to form PEG precipitable immune complexes. Presented data, as well as the results of our previous work, can be used as parameters with reference to physicochemical and immunochemical characteristics of IgG immune complexes of preruminant calves under pathological conditions., Telad od rođenja dolazi u kontakt sa velikim brojem antigena za čije je efikasno uklanjanje neophodno formiranje imunokompleksa. Sposobnost ovih, još uvek imunološki nezrelih, životinja da formiraju iminokomplekse, kao i sastav njihovih konstituenata, nisu detaljno ispitivani. U ovom radu smo imunokomplekse iz seruma teladi izolovali precipitacijom polietilen glikolom (PEGom), a osobine IgG, kao potencijalnih konstituenata imunokompleksa, analizirali metodama elektroforeze i imunoelektroforeze. U našem prethodnom radu dokazali smo da se nivo PEG precipitabilnih imunokompleksa menja sa uzrastom teladi. On raste od rođenja do 48. sata, opada desetog dana, ponovo raste u prvom mesecu, nakon čega ostaje nepromenjen do četvrtog meseca starosti. Elekroforetske i imunoelektroforetske analize su ukazale da se u serumu i PEG precipitatima seruma teladi do mesec dana starosti nalazi samo jedna molekulska frakcija IgG koja odgovara brzim, anjonskim IgG. Iako se u serumima teladi već u prvom mesecu starosti nalaze sve molekulske forme IgG koje se nalaze i u serumu odraslih krava, samo jedan njihov deo (brzi, anjonski γ globulini) ima sposobnost da formira imune komplekse. Kod starijih teladi, kao i kod odraslih krava, sve molekulske forme serumskih IgG mogu da formiraju imune komplekse. Ovi rezultati, zajedno sa rezultatima našeg predhodnog rada, se mogu koristiti za dobijanje referentnog sistema vrednosti nivoa i sastava imunokompleksa kod zdravih teladi, a koji bi se mogao koristiti za određivanje nivoa i sastava imunokompleksa kod teladi u patološkim uslovima.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Electrophoretic and immunoelectrophoretic characteristics of IgG as a constituents of peg precipitable immune complexes in preruminant calves' sera, Elektroforetske i imunoelektroforetske karakteristike IgG kao konstituenata peg precipitabilnih imunokompleksa seruma kod teladi do četvrtog meseca starosti",
volume = "60",
number = "2-3",
pages = "155-164",
doi = "10.2298/AVB1003155F"
}

Fratrić, N., Ilić, V., Milošević-Jovčić, N.,& Stojić, V.. (2010). Electrophoretic and immunoelectrophoretic characteristics of IgG as a constituents of peg precipitable immune complexes in preruminant calves' sera. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 60(2-3), 155-164.
https://doi.org/10.2298/AVB1003155F

Fratrić N, Ilić V, Milošević-Jovčić N, Stojić V. Electrophoretic and immunoelectrophoretic characteristics of IgG as a constituents of peg precipitable immune complexes in preruminant calves' sera. in Acta Veterinaria-Beograd. 2010;60(2-3):155-164.
doi:10.2298/AVB1003155F .

Fratrić, Natalija, Ilić, Vesna, Milošević-Jovčić, Nadežda, Stojić, Velibor, "Electrophoretic and immunoelectrophoretic characteristics of IgG as a constituents of peg precipitable immune complexes in preruminant calves' sera" in Acta Veterinaria-Beograd, 60, no. 2-3 (2010):155-164,
https://doi.org/10.2298/AVB1003155F . .

TY  - JOUR
AU  - Fratrić, Natalija
AU  - Milošević-Jovčić, Nadežda
AU  - Ilić, Vesna
AU  - Stojić, Velibor
PY  - 2006
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/376
AB  - In this work immune complexes (IC) in the sera of healthy calves from birth to four months of age, heifers and cows were investigated. Polyethylen glycol (PEG) precipitation assay was applied after previous standardization. Optical density (OD) of redissolved precipitates, formed after adding PEG to serum samples, was a measure of IC level. The upper-limit values for normal IC levels were established using isolated cattle IgG in different amounts and aggregated by heat as an IC model in vitro, in the same assay. In newborn calves before colostrum intake, OD of 0.047±0.024 was registered in redissolved PEG precipitates, far below the values obtained for native monomeric IgG. Therefore, these values can not be considered to refer to immune complexes. After colostrum intake, OD values for normal IC levels were higher, with significant interindividual differences: in calves at 6 24 and 48 hours after birth the mean OD values of solubilized PEG precipitates were 0.069±0.025, 0.148±0.079, and 0.136±0.062 respectively. In the sera of calves 10 days after birth mean OD value was slightly lower 0.089±0.053, whereas in the serum of 1, 2, 3 and 4 month old calves normal levels of IC rose to 0.165±0.067, 0.157±0.080, 0,231±0,124 and 0.261±0.092 respectively. OD values for IC levels for adult animals were found to be 0,456±0,150 for heifers, and 0,183±0,031 for cows. Together, the obtained data may be included in a reference values system for normal levels of IC at different ages, in relation to which the IC levels under pathological conditions could be estimated.
AB  - U radu je ispitivan nivo imunokompleksa (IC) u krvnom serumu teladi od rođenja do četiri meseca starosti, kao i kod junica i krava. Za analize je posle predhodne standardizacije korišćen polietilenglikol precipitacioni test (direktan PEG test). Meru nivoa IC predstavljale su vrednosti optičke gustine (OD) rastvorenog precipitata dobijenog nakon taloženja imunokompleksa iz seruma PEG-om. Gornja granica normalnih vrednosti za nivo IC utvrđena je prema vrednostima dobijenim za izolovane i toplotom agregirane kravlje IgG, u istom testu, gde su takvi IgG korišćeni kao modeli IC in vitro. U grupi novorođene teladi pre uzimanja kolostruma vrednosti OD su bile ekstremno niske (OD 0,047±0.024) i nisu mogle biti pripisane imunokompleksima. Vrednosti OD za normalan nivo IC u serumu teladi nakon uzimanja kolostruma su bile više: za telad 6, 24 i 48 sati nakon rođenja taj nivo je iznosio 0,069±0,025, 0,148±0,079 i 0,136±0,062 respektivno. U odnosu na ove vrednosti, nivo IC u serumu teladi 10 dana od rođenja je bio nešto niži i iznosio 0,089±0,053, da bi se, zatim, kontinuirano povećavao kod teladi uzrasta od 1 do 4 meseca i iznosio 0,165±0,067 za telad od 1-og meseca, 0,157±0,080 za telad od 2 meseca, 0,231±0,124 za telad od 3 meseca i 0,261±0,092 za telad od 4 meseca starosti. Nivo imunokompleksa u serumu odraslih goveda iznosio je kod junica 0,456±0,150 i krava 0,183±0,031. Dobijeni rezultati mogu biti uključeni u kontrolni sistem vrednosti za normalan nivo IC u raznim starosnim grupama goveda, koji se može koristiti pri određivanju nivoa IC PEG testom pod patološkim uslovima kod teladi junica i krava.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - The levels of immune complexes in the blood sera of calves in the neonatal period and in adult cattle
T1  - Imunokompleksi u krvnom serumu teladi u neonatalnom periodu i kod odraslih goveda
VL  - 56
IS  - 2-3
SP  - 103
EP  - 110
DO  - 10.2298/AVB0603103F
ER  - 

@article{
author = "Fratrić, Natalija and Milošević-Jovčić, Nadežda and Ilić, Vesna and Stojić, Velibor",
year = "2006",
abstract = "In this work immune complexes (IC) in the sera of healthy calves from birth to four months of age, heifers and cows were investigated. Polyethylen glycol (PEG) precipitation assay was applied after previous standardization. Optical density (OD) of redissolved precipitates, formed after adding PEG to serum samples, was a measure of IC level. The upper-limit values for normal IC levels were established using isolated cattle IgG in different amounts and aggregated by heat as an IC model in vitro, in the same assay. In newborn calves before colostrum intake, OD of 0.047±0.024 was registered in redissolved PEG precipitates, far below the values obtained for native monomeric IgG. Therefore, these values can not be considered to refer to immune complexes. After colostrum intake, OD values for normal IC levels were higher, with significant interindividual differences: in calves at 6 24 and 48 hours after birth the mean OD values of solubilized PEG precipitates were 0.069±0.025, 0.148±0.079, and 0.136±0.062 respectively. In the sera of calves 10 days after birth mean OD value was slightly lower 0.089±0.053, whereas in the serum of 1, 2, 3 and 4 month old calves normal levels of IC rose to 0.165±0.067, 0.157±0.080, 0,231±0,124 and 0.261±0.092 respectively. OD values for IC levels for adult animals were found to be 0,456±0,150 for heifers, and 0,183±0,031 for cows. Together, the obtained data may be included in a reference values system for normal levels of IC at different ages, in relation to which the IC levels under pathological conditions could be estimated., U radu je ispitivan nivo imunokompleksa (IC) u krvnom serumu teladi od rođenja do četiri meseca starosti, kao i kod junica i krava. Za analize je posle predhodne standardizacije korišćen polietilenglikol precipitacioni test (direktan PEG test). Meru nivoa IC predstavljale su vrednosti optičke gustine (OD) rastvorenog precipitata dobijenog nakon taloženja imunokompleksa iz seruma PEG-om. Gornja granica normalnih vrednosti za nivo IC utvrđena je prema vrednostima dobijenim za izolovane i toplotom agregirane kravlje IgG, u istom testu, gde su takvi IgG korišćeni kao modeli IC in vitro. U grupi novorođene teladi pre uzimanja kolostruma vrednosti OD su bile ekstremno niske (OD 0,047±0.024) i nisu mogle biti pripisane imunokompleksima. Vrednosti OD za normalan nivo IC u serumu teladi nakon uzimanja kolostruma su bile više: za telad 6, 24 i 48 sati nakon rođenja taj nivo je iznosio 0,069±0,025, 0,148±0,079 i 0,136±0,062 respektivno. U odnosu na ove vrednosti, nivo IC u serumu teladi 10 dana od rođenja je bio nešto niži i iznosio 0,089±0,053, da bi se, zatim, kontinuirano povećavao kod teladi uzrasta od 1 do 4 meseca i iznosio 0,165±0,067 za telad od 1-og meseca, 0,157±0,080 za telad od 2 meseca, 0,231±0,124 za telad od 3 meseca i 0,261±0,092 za telad od 4 meseca starosti. Nivo imunokompleksa u serumu odraslih goveda iznosio je kod junica 0,456±0,150 i krava 0,183±0,031. Dobijeni rezultati mogu biti uključeni u kontrolni sistem vrednosti za normalan nivo IC u raznim starosnim grupama goveda, koji se može koristiti pri određivanju nivoa IC PEG testom pod patološkim uslovima kod teladi junica i krava.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "The levels of immune complexes in the blood sera of calves in the neonatal period and in adult cattle, Imunokompleksi u krvnom serumu teladi u neonatalnom periodu i kod odraslih goveda",
volume = "56",
number = "2-3",
pages = "103-110",
doi = "10.2298/AVB0603103F"
}

Fratrić, N., Milošević-Jovčić, N., Ilić, V.,& Stojić, V.. (2006). The levels of immune complexes in the blood sera of calves in the neonatal period and in adult cattle. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 56(2-3), 103-110.
https://doi.org/10.2298/AVB0603103F

Fratrić N, Milošević-Jovčić N, Ilić V, Stojić V. The levels of immune complexes in the blood sera of calves in the neonatal period and in adult cattle. in Acta Veterinaria-Beograd. 2006;56(2-3):103-110.
doi:10.2298/AVB0603103F .

Fratrić, Natalija, Milošević-Jovčić, Nadežda, Ilić, Vesna, Stojić, Velibor, "The levels of immune complexes in the blood sera of calves in the neonatal period and in adult cattle" in Acta Veterinaria-Beograd, 56, no. 2-3 (2006):103-110,
https://doi.org/10.2298/AVB0603103F . .

TY  - JOUR
AU  - Ilić, Vesna
AU  - Petakov, Marijana
AU  - Stojanović, Nevenka
AU  - Jovčić, Gordana
AU  - Bugarski, Diana
AU  - Grbović, Tatjana
AU  - Božić, Tatjana
AU  - Kovačević-Filipović, Milica
PY  - 2006
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/385
AB  - Serum iron concentration and iron saturation of transferrin (Trf) are measures of body iron stores after administration of iron supplements. In clinical and experimental research, the complex determination of Trf was replaced by the simple determination of total iron binding capacity (TIBC). The objective of this work was to define if TIBC could be an adequate measure for Trf in neonatal piglets after i.m. iron administration. Treated piglets received 150 mg of iron-dextran i.m. the first day of life, and were compared to the untreated control group. Prior to iron administration, as well as on days 2, 8 and 12 after iron administration, serum iron and TIBC concentration were analyzed by an automatized chemical analyzer and Trf was determined by densitometry of electrophoretic strips. Our results show that regardless of iron treatment, TIBC is not a measure of Trf concentration in neonatal piglets two days after birth. At day 8 of their life a high correlation coefficient of these two parameters was established in non-treated animals, while in iron-treated piglets the same correlation was established 12 days after iron treatment. Thus, we suggest that in neonatal piglets, TIBC could be used as a measure of Trf concentration only 12 days after i.m. iron treatment.
AB  - Određivanje statusa gvožđa u organizmu jedinke posle primene određenog preparata ovog mikroelementa moguće je utvrditi određivanjem njegove koncentracije u serumu i zasićenja transferina (Trf) gvožđem. U kliničkoj i eksperimentalnoj praksi složeno određivanje koncentracije Trf zamenjeno je jednostavnim određ ivanjem ukupnog serumskog kapaciteta za vezivanje gvožđa (TIBC). Cilj ovog rada je bio da se na modelu porasta serumskog Fe po i.m. aplikaciji Fe-dextrana novorođenoj prasadi, utvrdi odnos TIBC i Trf po aplikaciji ovog mikroelementa, kako bi se utvrdilo da li visoke doze gvožđa u serumu utiču na vrednost TIBC kao mere za određivanje koncentracije Trf. Vrednosti za serumsko Fe, TIBC i Trf poređene su između grupe životinja koja je odmah po rođenju dobila 150 mg Fe-dextrana i kontrolne grupe u kojoj životoinje nisu tretirane Fe-dextranom. Krv je uzorkovana pre aplikacije Fe-dextrana, drugog, osmog i dvanaestog dana po aplikaciji preparata gvožđa. Koncentracija gvožđa u serumu i TIBC su određivani standarnim kliničkim biohemijskim analizama, dok je koncenracija Trf određena denzitometrijom elektroforetskih traka. Dobijeni rezultati ukazuju da bez obzira na primenu preparata Fe, TIBC nije adekvatna mera za Trf kod novorođene prasadi u prva tri dana po rođenju. Osmog dana života prasadi, utvrđen je visoki stepen korelacije ova dva parametra kod životinja koje nisu bile tretirane, dok je kod tretiranih jedinki taj stepen korelacije postignut dvanaestog dana. Na osnovu izloženih rezultata se može zaključiti da se kod novorođene prasadi TIBC može koristiti kao mera za Trf tek 12 dana nakon i.m. tretmana Fe-dextranom.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria-Beograd
T1  - Relationship between total iron binding capacity and transferrin concentration in neonatal piglets treated with iron-dextran
T1  - Odnos između totalnog kapaciteta za vezivanje gvožđa i koncentracije transferina kod novorođene prasadi tretirane gvožđe-dekstranom
VL  - 56
IS  - 2-3
SP  - 235
EP  - 242
DO  - 10.2298/AVB0603235I
ER  - 

@article{
author = "Ilić, Vesna and Petakov, Marijana and Stojanović, Nevenka and Jovčić, Gordana and Bugarski, Diana and Grbović, Tatjana and Božić, Tatjana and Kovačević-Filipović, Milica",
year = "2006",
abstract = "Serum iron concentration and iron saturation of transferrin (Trf) are measures of body iron stores after administration of iron supplements. In clinical and experimental research, the complex determination of Trf was replaced by the simple determination of total iron binding capacity (TIBC). The objective of this work was to define if TIBC could be an adequate measure for Trf in neonatal piglets after i.m. iron administration. Treated piglets received 150 mg of iron-dextran i.m. the first day of life, and were compared to the untreated control group. Prior to iron administration, as well as on days 2, 8 and 12 after iron administration, serum iron and TIBC concentration were analyzed by an automatized chemical analyzer and Trf was determined by densitometry of electrophoretic strips. Our results show that regardless of iron treatment, TIBC is not a measure of Trf concentration in neonatal piglets two days after birth. At day 8 of their life a high correlation coefficient of these two parameters was established in non-treated animals, while in iron-treated piglets the same correlation was established 12 days after iron treatment. Thus, we suggest that in neonatal piglets, TIBC could be used as a measure of Trf concentration only 12 days after i.m. iron treatment., Određivanje statusa gvožđa u organizmu jedinke posle primene određenog preparata ovog mikroelementa moguće je utvrditi određivanjem njegove koncentracije u serumu i zasićenja transferina (Trf) gvožđem. U kliničkoj i eksperimentalnoj praksi složeno određivanje koncentracije Trf zamenjeno je jednostavnim određ ivanjem ukupnog serumskog kapaciteta za vezivanje gvožđa (TIBC). Cilj ovog rada je bio da se na modelu porasta serumskog Fe po i.m. aplikaciji Fe-dextrana novorođenoj prasadi, utvrdi odnos TIBC i Trf po aplikaciji ovog mikroelementa, kako bi se utvrdilo da li visoke doze gvožđa u serumu utiču na vrednost TIBC kao mere za određivanje koncentracije Trf. Vrednosti za serumsko Fe, TIBC i Trf poređene su između grupe životinja koja je odmah po rođenju dobila 150 mg Fe-dextrana i kontrolne grupe u kojoj životoinje nisu tretirane Fe-dextranom. Krv je uzorkovana pre aplikacije Fe-dextrana, drugog, osmog i dvanaestog dana po aplikaciji preparata gvožđa. Koncentracija gvožđa u serumu i TIBC su određivani standarnim kliničkim biohemijskim analizama, dok je koncenracija Trf određena denzitometrijom elektroforetskih traka. Dobijeni rezultati ukazuju da bez obzira na primenu preparata Fe, TIBC nije adekvatna mera za Trf kod novorođene prasadi u prva tri dana po rođenju. Osmog dana života prasadi, utvrđen je visoki stepen korelacije ova dva parametra kod životinja koje nisu bile tretirane, dok je kod tretiranih jedinki taj stepen korelacije postignut dvanaestog dana. Na osnovu izloženih rezultata se može zaključiti da se kod novorođene prasadi TIBC može koristiti kao mera za Trf tek 12 dana nakon i.m. tretmana Fe-dextranom.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria-Beograd",
title = "Relationship between total iron binding capacity and transferrin concentration in neonatal piglets treated with iron-dextran, Odnos između totalnog kapaciteta za vezivanje gvožđa i koncentracije transferina kod novorođene prasadi tretirane gvožđe-dekstranom",
volume = "56",
number = "2-3",
pages = "235-242",
doi = "10.2298/AVB0603235I"
}

Ilić, V., Petakov, M., Stojanović, N., Jovčić, G., Bugarski, D., Grbović, T., Božić, T.,& Kovačević-Filipović, M.. (2006). Relationship between total iron binding capacity and transferrin concentration in neonatal piglets treated with iron-dextran. in Acta Veterinaria-Beograd
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 56(2-3), 235-242.
https://doi.org/10.2298/AVB0603235I

Ilić V, Petakov M, Stojanović N, Jovčić G, Bugarski D, Grbović T, Božić T, Kovačević-Filipović M. Relationship between total iron binding capacity and transferrin concentration in neonatal piglets treated with iron-dextran. in Acta Veterinaria-Beograd. 2006;56(2-3):235-242.
doi:10.2298/AVB0603235I .

Ilić, Vesna, Petakov, Marijana, Stojanović, Nevenka, Jovčić, Gordana, Bugarski, Diana, Grbović, Tatjana, Božić, Tatjana, Kovačević-Filipović, Milica, "Relationship between total iron binding capacity and transferrin concentration in neonatal piglets treated with iron-dextran" in Acta Veterinaria-Beograd, 56, no. 2-3 (2006):235-242,
https://doi.org/10.2298/AVB0603235I . .