Title |
Mitochondrial genomic variation associated with higher mitochondrial copy number: the Cache County Study on Memory Health and Aging
|
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Published in |
BMC Bioinformatics, May 2014
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DOI | 10.1186/1471-2105-15-s7-s6 |
Pubmed ID | |
Authors |
Perry G Ridge, Taylor J Maxwell, Spencer J Foutz, Matthew H Bailey, Christopher D Corcoran, JoAnn T Tschanz, Maria C Norton, Ronald G Munger, Elizabeth O'Brien, Richard A Kerber, Richard M Cawthon, John SK Kauwe |
Abstract |
The mitochondria are essential organelles and are the location of cellular respiration, which is responsible for the majority of ATP production. Each cell contains multiple mitochondria, and each mitochondrion contains multiple copies of its own circular genome. The ratio of mitochondrial genomes to nuclear genomes is referred to as mitochondrial copy number. Decreases in mitochondrial copy number are known to occur in many tissues as people age, and in certain diseases. The regulation of mitochondrial copy number by nuclear genes has been studied extensively. While mitochondrial variation has been associated with longevity and some of the diseases known to have reduced mitochondrial copy number, the role that the mitochondrial genome itself has in regulating mitochondrial copy number remains poorly understood. |
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