Quick Reference

5-Hydroxytryptamine, a derivative of tryptophan that is a powerful vasoconstrictor found especially in the brain, intestinal fluid, mast cells, and blood platelets, and also in snake and toad venoms. Curiously it has also been found in nettles, bananas, and tomatoes. In humans it has been suggested as a cause of migraines.

Subjects: Medicine and Health — Biological Sciences.

Reference entries

See all related reference entries in Oxford Index »