Tyramine

Tyramine is an indirectly acting sympathomimetic amine that releases norepinephrine from presynaptic nerve terminals.
Solid|Colourless to yellow solid; Sweet meaty aroma
Tyramine is a primary amino compound obtained by formal decarboxylation of the amino acid tyrosine. It has a role as an EC 3.1.1.8 (cholinesterase) inhibitor, a human metabolite, an Escherichia coli metabolite, a mouse metabolite and a neurotransmitter. It is a monoamine molecular messenger, a primary amino compound and a member of tyramines. It is a conjugate base of a tyraminium.|Tyramine (4-hydroxyphenethylamine; para-tyramine, mydrial or uteramin) is a naturally occurring monoamine compound and trace amine derived from the amino acid tyrosine. Tyramine acts by inducing the release of catecholamine. An important characteristic of this product is its impediment to cross the blood-brain barrier which restrains its side effects to only nonpsychoactive peripheral sympathomimetic effects. There have been reports of hypertensive crisis in patients ingesting tyramine-rich diet in conjunction with monoamine oxidase inhibitors (MAOIs).|An indirect sympathomimetic that occurs naturally in cheese and other foods. Tyramine does not directly activate adrenergic receptors, but it can serve as a substrate for adrenergic uptake systems and MONOAMINE OXIDASE to prolong the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals and may be a neurotransmitter in some invertebrate nervous systems.