Tissue-specific effect of age and caloric restriction diet on mitochondrial DNA content

被引:23
作者
Cassano, P.
Sciancalepore, A. G.
Lezza, A. M. S.
Leeuwenburgh, C.
Cantatore, P.
Gadaleta, M. N.
机构
[1] Univ Bari, Dept Biochem & Mol Biol, I-70125 Bari, Italy
[2] Univ Florida, Coll Med, Dept Aging & Geriatr Res, Biochem Aging Lab, Gainesville, FL USA
[3] CNR, Inst Biomembranes & Bioenerget, I-70126 Bari, Italy
关键词
D O I
10.1089/rej.2006.9.211
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
The effect of age and caloric-restriction (CR) diet on mitochondrial DNA (mtDNA) content in different rat tissues was investigated. A decrease of the mtDNA content occurs with aging in liver and soleus muscle, whereas there is no age-related significant change of mtDNA content in brain. CR fully reverses the age-dependent loss of mtDNA in liver and soleus, whereas it results in a significant increase of mtDNA amount above the value of aged ad libitum fed rats in brain. These results further support the tissue-specific effect of CR, likely because of the different dependence of tissues on external nutrient uptake.
引用
收藏
页码:211 / 214
页数:4
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