Ethanol (Alcohol) damages the mitochondrial membrane, which is critical to dealing with reactive oxygen species (ROS). Excess ethanol may overwhelm the mitochondria with oxidative stress leading to cellular damage/death. This in term causes increased leakage of mitochondria AST (mAST) into the bloodstream.
2. Decreased ALT activity most likely due to B6 depletion in the livers of alcoholics
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