Detection of single nucleotide variants in the mitochondrial genome of healthy mice and humans.
Abstract
Single nucleotide mutations in the mitochondrial genome are linked to aging in humans, primates, and rodents and cause neuromuscular diseases in humans. Load of mitochondrial variants in healthy tissues, however, is little known. Employing an unbiased detection method with no prior enzymatic amplification, we observed that the mitochondrial genome of embryonic, adult, and aged mouse brain from two different strains contains a diversity of single nucleotide variants with no age-related increase in abundance. We also observed de novo variants in single oocytes and adult liver arising at 5x10
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Research summary
The paper investigates single nucleotide variants in the mitochondrial genome, which are linked to aging and age-related diseases. However, the findings primarily focus on the diversity of variants without establishing a clear connection to the root causes of aging or lifespan extension. While it contributes to understanding mitochondrial genetics, its impact on the field of longevity research is limited, making it a solid but not groundbreaking study.
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