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← Human Body & HealthWhy does persistent hyperglycemia increase sarcopenia risk due to oxidative stress?
A)Increases protein synthesis directly
B)Activates proteolysis via FOXO3✓
C)Enhances mitochondrial biogenesis solely
D)Inhibits satellite cell differentiation only
💡 Explanation
Persistent hyperglycemia enhances sarcopenia risk because increased glucose metabolism results in greater oxidative stress and reactive oxygen species (ROS) production. Elevated ROS activates FOXO3, promoting muscle protein breakdown (proteolysis) rather than protein synthesis; therefore, hyperglycemia-induced oxidative stress accelerates sarcopenia.
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