Canadian Medical Guide > Chemicals and Drugs > Organic Chemicals > Amines > Biogenic Amines > Biogenic Monoamines Terms and Definitions

Biogenic Monoamines

Medical Definition:	Biogenic amines having only one amine moiety. Included in this group are all natural monoamines formed by the enzymatic decarboxylation of natural amino acids.
Guide Notes:	GEN: prefer specifics
Previously Indexed:	Biogenic Amines (1971-1988),Catecholamines (1966-1988),Dopamine (1966-1988),Epinephrine (1966-1988),Norepinephrine (1966-1988)

Biogenic Monoamines Categories.

	Catecholamines - A general class of ortho-dihydroxyphenylalkylamines derived from tyrosine.
	Histamine - A depressor amine derived by enzymatic decarboxylation of histidine. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.
	Tryptamines
	Tyramine - An indirect sympathomimetic. Tyramine does not directly activate adrenergic receptors, but it can serve as a substrate for adrenergic uptake systems and monoamine oxidase so it prolongs the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals. Tyramine may be a neurotransmitter in some invertebrate nervous systems.

Biogenic Monoamines Medical Definitions and Terms

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