What is histamine?

Answer:
Histamine is an autocoid ( local harmone) produced from the amino acid histidine, that is usually present in the human body. It exerts a pharmacologic action when released from injured cells. Functions of histamine include: increasing gastric secretion, dilatation of capillaries, and constriction of bronchial (lung) smooth muscle.
First answer by ID3251342306. Last edit by Arvindkataria. Contributor trust: 6 [recommend contributor recommended]. Question popularity: 4 [recommend question].

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Relevant answers:

  • What is 'Histamine'?

    Histamine is a biogenic amine involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter. (Wikipedia) For the source and more...

  • What are histamines?

    These substance are chemically known as beta-imidazolylethylamine which are released by the body in response to various allergens. You can also get it in medicated form. [What you get medically are...

  • What is a histamine?

    It's an Amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the humane immune system during allergic reactions

  • What produces histamine?

    mast cells

  • Is histamine a catecholamine?

    No. Only epinephrine, norepinephrine and dopamine are catecholamines.

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