This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Increased levels of alanine in serum after fasting suggest \nSelect and explain. \nA. Increased release of alanine from muscle, B. Reduced amino acid utilisation for gluconeogenesis, C. Break in continuity of plasma membrane resulting in leakage of amino acids, D. Decreased uptake of alanine by liver', 'role': 'user'}, {'content': 'Answer: A \nExplanation: During starvation, muscle proteins are degraded to serve amino acids (especially alanine) as substrates for gluconeogenesis.\nAlanine also arises from transamination of pyruvate in the muscles.\nAlanine is transported to liver for gluconeogenesis.', 'role': 'assistant'}]