Medical Dictionary


noun en·do·the·lin \ˌen-dō-ˈthē-lin\

Medical Definition of endothelin

  1. :  any of several polypeptides consisting of 21 amino acid residues that are produced in various cells and tissues, that play a role in regulating vasomotor activity, cell proliferation, and the production of hormones, and that have been implicated in the development of vascular disease

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