TY  - JOUR
AU  - Popović, Branka
AU  - Velimirović, Milica
AU  - Stojković, Tihomir
AU  - Brajović, Gavrilo
AU  - de Luka, Silvio R.
AU  - Milovanović, Ivan
AU  - Stefanović, Srđan
AU  - Nikolić, Dragica
AU  - Ristic-Đurović, Jasna L.
AU  - Petronijević, Nataša
AU  - Trbovich, Alexander M.
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2323
AB  - Ageing affects various physiological and metabolic processes in a body and a progressive accumulation of oxidative damage stands out as often used explanation. One of the most powerful scavenger of reactive oxygen species (ROS) in all organs is melatonin. A majority of melatonin supplied to the body via blood originates from the pineal gland. However, we have been interested in a locally produced melatonin. We have used 2.5- and 36-months-old Wistar rats. Tissues were collected and gene expression of AA-NAT and ASMT, the two key enzymes in a synthesis of melatonin, was determined in brain, liver, kidney, heart, skin, and intestine. Since melatonin can influence antioxidant enzymes, the activity of superoxide dismutase (SOD) and catalase (CAT), and the level of GSH were measured in liver. In addition, Copper (Cu), Zinc (Zn), and Manganese (Mn) were also determined in liver since these microelements might affect the activity of antioxidant enzymes. The expression of AA-NAT and ASMT was increased in liver and skin of old animals. A positive correlation in AA-NAT and ASMT expression was observed in liver, intestine and kidney. Moreover, the activity of CAT enzyme in liver was increased while SOD activity was decreased. SOD and CAT were probably affected by the observed decreased amount of Cu, Zn, and Mn in liver of old animals. In our model, extrapineal melatonin pathway in ageing consisted of complex interplay of locally produced melatonin, activities of SOD and CAT, and adequate presence of Cu, Zn and Mn microelements in order to defend organs against oxidative damage.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Experimental Gerontology
T1  - The influence of ageing on the extrapineal melatonin synthetic pathway
VL  - 110
SP  - 151
EP  - 157
DO  - 10.1016/j.exger.2018.06.010
ER  - 

@article{
author = "Popović, Branka and Velimirović, Milica and Stojković, Tihomir and Brajović, Gavrilo and de Luka, Silvio R. and Milovanović, Ivan and Stefanović, Srđan and Nikolić, Dragica and Ristic-Đurović, Jasna L. and Petronijević, Nataša and Trbovich, Alexander M.",
year = "2018",
abstract = "Ageing affects various physiological and metabolic processes in a body and a progressive accumulation of oxidative damage stands out as often used explanation. One of the most powerful scavenger of reactive oxygen species (ROS) in all organs is melatonin. A majority of melatonin supplied to the body via blood originates from the pineal gland. However, we have been interested in a locally produced melatonin. We have used 2.5- and 36-months-old Wistar rats. Tissues were collected and gene expression of AA-NAT and ASMT, the two key enzymes in a synthesis of melatonin, was determined in brain, liver, kidney, heart, skin, and intestine. Since melatonin can influence antioxidant enzymes, the activity of superoxide dismutase (SOD) and catalase (CAT), and the level of GSH were measured in liver. In addition, Copper (Cu), Zinc (Zn), and Manganese (Mn) were also determined in liver since these microelements might affect the activity of antioxidant enzymes. The expression of AA-NAT and ASMT was increased in liver and skin of old animals. A positive correlation in AA-NAT and ASMT expression was observed in liver, intestine and kidney. Moreover, the activity of CAT enzyme in liver was increased while SOD activity was decreased. SOD and CAT were probably affected by the observed decreased amount of Cu, Zn, and Mn in liver of old animals. In our model, extrapineal melatonin pathway in ageing consisted of complex interplay of locally produced melatonin, activities of SOD and CAT, and adequate presence of Cu, Zn and Mn microelements in order to defend organs against oxidative damage.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Experimental Gerontology",
title = "The influence of ageing on the extrapineal melatonin synthetic pathway",
volume = "110",
pages = "151-157",
doi = "10.1016/j.exger.2018.06.010"
}

Popović, B., Velimirović, M., Stojković, T., Brajović, G., de Luka, S. R., Milovanović, I., Stefanović, S., Nikolić, D., Ristic-Đurović, J. L., Petronijević, N.,& Trbovich, A. M.. (2018). The influence of ageing on the extrapineal melatonin synthetic pathway. in Experimental Gerontology
Pergamon-Elsevier Science Ltd, Oxford., 110, 151-157.
https://doi.org/10.1016/j.exger.2018.06.010

Popović B, Velimirović M, Stojković T, Brajović G, de Luka SR, Milovanović I, Stefanović S, Nikolić D, Ristic-Đurović JL, Petronijević N, Trbovich AM. The influence of ageing on the extrapineal melatonin synthetic pathway. in Experimental Gerontology. 2018;110:151-157.
doi:10.1016/j.exger.2018.06.010 .

Popović, Branka, Velimirović, Milica, Stojković, Tihomir, Brajović, Gavrilo, de Luka, Silvio R., Milovanović, Ivan, Stefanović, Srđan, Nikolić, Dragica, Ristic-Đurović, Jasna L., Petronijević, Nataša, Trbovich, Alexander M., "The influence of ageing on the extrapineal melatonin synthetic pathway" in Experimental Gerontology, 110 (2018):151-157,
https://doi.org/10.1016/j.exger.2018.06.010 . .

TY  - JOUR
AU  - Basta-Jovanović, Gordana
AU  - Suzić, S.
AU  - Savin, M.
AU  - Petronijević, Nataša
AU  - Radonjić, N.
AU  - Signuričić, S.
AU  - Vučković, Mila
AU  - Radojević-Škodrić, Sanja
PY  - 2008
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1408
AB  - Proliferative disorders including tumors are recognized as diseases of the cell cycle in which the crucial role belongs to the cyclin-dependent kinase family. The aim of this study was to investigate the expression of protein p16 in the normal kidney, and in Wilms tumor by immunohistochemistry to correlate the obtained results with tumor stage, histological type and prognostic group. We have investigated 28 cases of Wilms tumor, two Wilms tumor metastases in the lungs and one case of normal renal tissue. Protein p16 was over expressed in 20 cases of Wilms tumor. Expression of p16 was less frequent in stages III/IV/V than in stages I/III, showing no statistically significant correlation (p > 0.05). Intermediate risk groups of Wilms tumor showed more frequent p16 expression in comparison with high risk cases, showing no statistical significance (p > 0.05). Protein p16 expression was detected in all histologic types of Wilms tumor with the highest expression in the predominantly blastemal type (50%). There was a statistically significant difference between p16 expression in this and its expression in other histological types (p  lt  0.05). The correlation between p16 expression and the predominantly blastemal histological type was statistically significant and showed that in such cases tumor cells can proliferate even in the presence of p16.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta Veterinaria
T1  - Immunohistochemical expression of protein p16 in Wilms' tumor
VL  - 58
IS  - 4
SP  - 297
EP  - 306
DO  - 10.2298/AVB0804297B
ER  - 

@article{
author = "Basta-Jovanović, Gordana and Suzić, S. and Savin, M. and Petronijević, Nataša and Radonjić, N. and Signuričić, S. and Vučković, Mila and Radojević-Škodrić, Sanja",
year = "2008",
abstract = "Proliferative disorders including tumors are recognized as diseases of the cell cycle in which the crucial role belongs to the cyclin-dependent kinase family. The aim of this study was to investigate the expression of protein p16 in the normal kidney, and in Wilms tumor by immunohistochemistry to correlate the obtained results with tumor stage, histological type and prognostic group. We have investigated 28 cases of Wilms tumor, two Wilms tumor metastases in the lungs and one case of normal renal tissue. Protein p16 was over expressed in 20 cases of Wilms tumor. Expression of p16 was less frequent in stages III/IV/V than in stages I/III, showing no statistically significant correlation (p > 0.05). Intermediate risk groups of Wilms tumor showed more frequent p16 expression in comparison with high risk cases, showing no statistical significance (p > 0.05). Protein p16 expression was detected in all histologic types of Wilms tumor with the highest expression in the predominantly blastemal type (50%). There was a statistically significant difference between p16 expression in this and its expression in other histological types (p  lt  0.05). The correlation between p16 expression and the predominantly blastemal histological type was statistically significant and showed that in such cases tumor cells can proliferate even in the presence of p16.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta Veterinaria",
title = "Immunohistochemical expression of protein p16 in Wilms' tumor",
volume = "58",
number = "4",
pages = "297-306",
doi = "10.2298/AVB0804297B"
}

Basta-Jovanović, G., Suzić, S., Savin, M., Petronijević, N., Radonjić, N., Signuričić, S., Vučković, M.,& Radojević-Škodrić, S.. (2008). Immunohistochemical expression of protein p16 in Wilms' tumor. in Acta Veterinaria
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 58(4), 297-306.
https://doi.org/10.2298/AVB0804297B

Basta-Jovanović G, Suzić S, Savin M, Petronijević N, Radonjić N, Signuričić S, Vučković M, Radojević-Škodrić S. Immunohistochemical expression of protein p16 in Wilms' tumor. in Acta Veterinaria. 2008;58(4):297-306.
doi:10.2298/AVB0804297B .

Basta-Jovanović, Gordana, Suzić, S., Savin, M., Petronijević, Nataša, Radonjić, N., Signuričić, S., Vučković, Mila, Radojević-Škodrić, Sanja, "Immunohistochemical expression of protein p16 in Wilms' tumor" in Acta Veterinaria, 58, no. 4 (2008):297-306,
https://doi.org/10.2298/AVB0804297B . .