The Effect of Mitochondrial DNA Half-Life on Deletion Mutation Proliferation in Long Lived Cells

Author(s):  
Alan G. Holt ◽  
Adrian M. Davies
2006 ◽  
Vol 41 (6) ◽  
pp. 628-634 ◽  
Author(s):  
Wei-jia Kong ◽  
Ying Wang ◽  
Qiong Wang ◽  
Yu-juan Hu ◽  
Yue-chen Han ◽  
...  

CHEST Journal ◽  
2003 ◽  
Vol 123 (2) ◽  
pp. 539-544 ◽  
Author(s):  
Ling-Ping Lai ◽  
Chien-Chen Tsai ◽  
Ming-Jai Su ◽  
Jiunn-Lee Lin ◽  
Yih-Sharng Chen ◽  
...  

2010 ◽  
Vol 18 (27) ◽  
pp. 2934
Author(s):  
Hai-Hong Cui ◽  
Bin Wang ◽  
Ying Han ◽  
Ai-Min Li ◽  
Wei Wei ◽  
...  

2008 ◽  
Vol 43 (3) ◽  
pp. 245
Author(s):  
Wei-jia Kong ◽  
Ying Wang ◽  
Qiong Wang ◽  
Yu-juan Hu ◽  
Yue-chen Han ◽  
...  

2011 ◽  
Vol 27 (Supplement) ◽  
pp. OP42_4
Author(s):  
Sook Kyoung Kim ◽  
Kyoung-Jin Shin ◽  
Boyoung Joung ◽  
Moon-Hyoung Lee ◽  
Hui-Nam Pak

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 889-889
Author(s):  
Jonathan Wanagat ◽  
Allen Herbst ◽  
Steven Prior ◽  
Judd Aiken ◽  
Debbie McKenzie ◽  
...  

Abstract Mitochondrial DNA (mtDNA) quantity and quality influence hallmarks of aging – mitochondrial dysfunction and genomic instability. The interactions between mtDNA quantity and quality and physical performance have not been extensively examined in humans. The aim of this study was to test the interactions between skeletal muscle mtDNA copy number, mtDNA deletion mutation frequency, and physical performance measures in older adults. Total DNA was isolated from muscle biopsies and used for quantitation of mtDNA copy number and mutation frequency by digital PCR. The biopsies were obtained from a cross-sectional cohort of 53 adults aged 50 to 86 years. Before the biopsy, physical performance measures were collected. MtDNA deletions increased exponentially with advancing age. On average, mtDNA deletion frequency increased 18-fold between 50 and 80, with a trend toward lower deletion frequency in females. MtDNA deletion frequency predicted declines in VO2 max, where 4.7% of the variation in VO2 max was explained by mtDNA deletion frequency. MtDNA copy number was negatively correlated with age and mtDNA deletion frequency, but positively correlated with lean mass. There was a trend to lower mtDNA deletion frequency in females, consistent with increased longevity in females. Larger studies may better delineate sex effects. These data are consistent with a role for mitochondrial function and genome integrity in the maintenance of physical performance with age. Analyses of mtDNA quality and quantity in longitudinal studies could extend our understanding of the importance of mitochondria in human aging and longevity.


2019 ◽  
Vol 138 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Kenji Ozawa ◽  
Kiyofumi Mochizuki ◽  
Yusuke Manabe ◽  
Nobuaki Yoshikura ◽  
Takayoshi Shimohata ◽  
...  

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