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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Tryptophan deficiency leads to:
assistant
The correct answer is  (C) Hartnup disease # Hartnup disease occurs due to impaired intestinal absorption and renal re-absorption of a neutral amino acid, tryptophan.> Tryptophan is required for synthesis of serotonin and nicotinic acid.> Neurological manifestations of Hartnup disease are due to decreased synthesis of serotonin while pellagra-like rash occurs due to decreased synthesis of nicotinic acid.> Her's disease (choice A) is caused by deficiency of liver phosphorylase.