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Hartnup disease

Hereditary disorder in which tryptophan absorption and excretion are abnormal.

Autosomal recessive disorder of neutral amino acid transport (SLC6A19) causing impaired intestinal and renal reabsorption of tryptophan and other neutral amino acids. May produce pellagra-like skin and neurological symptoms because of low niacin precursor availability.

How one textbook covers it

  • Advanced Nutrition and Human Metabolism, 8th ed. (Gropper) — Glossary

    Autosomal recessive disorder of neutral amino acid transport (SLC6A19) causing impaired intestinal and renal reabsorption of tryptophan and other neutral amino acids. May produce pellagra-like skin and neurological symptoms because of low niacin precursor availability.

Related terms

Pellagra