Hartnup's syndrome is an autosomal recessive disorder causing poor absorption of which amino acids, potentially producing pellagra-like symptoms?

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Multiple Choice

Hartnup's syndrome is an autosomal recessive disorder causing poor absorption of which amino acids, potentially producing pellagra-like symptoms?

Hartnup disease reflects a defect in the transport of neutral amino acids in the gut and proximal tubules, which reduces the absorption and reabsorption of amino acids like tryptophan. Tryptophan is an aromatic amino acid and a key precursor for niacin (vitamin B3); when its availability drops, niacin synthesis can fall and pellagra-like symptoms (dermatitis, diarrhea, and cognitive changes) can emerge. Among the options, aromatic amino acids best fit this pattern because Hartnup disease specifically impairs neutral/aromatic amino acids, not basic amino acids, essential fatty acids, or branched-chain amino acids.

Hartnup's syndrome is an autosomal recessive disorder causing poor absorption of which amino acids, potentially producing pellagra-like symptoms?

Prepare for the ASPEN Certified Nutrition Support Clinician (CNSC) Exam. Study with structured quizzes and detailed insights to enhance your knowledge and readiness. Get set for success!

Hartnup's syndrome is an autosomal recessive disorder causing poor absorption of which amino acids, potentially producing pellagra-like symptoms?

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