Lexic.us

Definition of Melanocyte-stimulating hormone

1. Noun. A hormone secreted by the anterior pituitary gland that controls the degree of pigmentation in melanocytes.

Medical Definition of Melanocyte-stimulating hormone

1. A releasing hormone produced in the mammalian hypophysis and related structures in lower vertebrates. Made up of _ MSH (1665D), the same as amino acids 1-13 of ACTH and _ MSH (18 amino acids, 22 in humans). Causes darkening of the skin by expansion of the melanophores but its role in mammals is unclear. Synonym: melanotropin. Acronym: MSH (22 Sep 2002)

Lexicographical Neighbors of Melanocyte-stimulating Hormone

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