Testicular aging involves mitochondrial dysfunction as well as an increase in UCP2 levels and proton leak

被引:28
作者
Amaral, Sandra [1 ]
Mota, Paula [1 ]
Rodrigues, Ana Sofia [1 ]
Martins, Luis [1 ]
Oliveira, Paulo J. [1 ]
Ramalho-Santos, Joao [1 ]
机构
[1] Univ Coimbra, Fac Sci & Technol, Dept Zool, Ctr Neurosci & Cell Biol, P-3004517 Coimbra, Portugal
关键词
Aging; Male reproductive tract; Testis; Stress;
D O I
10.1016/j.febslet.2008.11.020
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 [生物化学与分子生物学]; 081704 [应用化学];
摘要
To address the possibility that mitochondria are involved in the age-related loss of testicular function, we characterized mitochondrial bioenergetics in rat testis. A peak of mitochondrial functionality was detected in adult animals, with a decrease in both young and older animals. In the latter group a decrease in mitochondrial function was matched with an increase in proton leak and expression and activity of uncoupling protein 2 (UCP2), suggesting that proton leak may be involved in managing age-dependent mitochondrial dysfunction. (c) 2008 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.
引用
收藏
页码:4191 / 4196
页数:6
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