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Hallmarks of aging that negatively impact health include weight gain and reduced physical fitness, which can increase insulin resistance and risk for many diseases, including type 2 diabetes. The underlying mechanism(s) for these phenomena is poorly understood. Here we report that aging increases DNA breaks and activates DNA-dependent protein kinase (DNA-PK) in skeletal muscle, which suppresses mitochondrial...
NYGGF4 is a recently identified gene that is involved in obesity-associated insulin resistance. Previous data from this laboratory have demonstrated that NYGGF4 overexpression might contribute to the development of insulin resistance (IR) and to mitochondrial dysfunction. Additionally, NYGGF4 knockdown enhanced insulin sensitivity and mitochondrial function in 3T3-L1 adipocytes. We designed this study...
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