tyramine


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tyramine

 [ti´rah-mēn]
a decarboxylation product of tyrosine, which may be converted to cresol and phenol, found in decayed animal tissue, ripe cheese, and ergot. Closely related structurally to epinephrine and norepinephrine, it has a similar but weaker action.

ty·ra·mine

(tī'ră-mēn, tir'ă-),
Decarboxylated tyrosine, a sympathomimetic amine having an action in some respects resembling that of epinephrine; present in ergot, mistletoe, ripe cheese, beer, red wine, and putrefied animal matter; elevated in people with tyrosinemia type II.

tyramine

(tī′rə-mēn′)
n.
A colorless crystalline amine, C8H11NO, found in mistletoe, putrefied animal tissue, certain cheeses, and ergot and also produced synthetically, used in medicine as a sympathomimetic agent.

tyramine

[tī′rəmēn]
Etymology: Gk, tyros, cheese, amine, ammonia
an amino acid synthesized in the body from the essential amino acid tyrosine. Tyramine stimulates the release of the catecholamines epinephrine and norepinephrine. People taking monoamine oxidase inhibitors should avoid the ingestion of foods and beverages containing tyramine, particularly aged cheeses and meats, bananas, yeast-containing products, and certain alcoholic beverages, such as red wines. See also amine, catecholamine, epINEPHrine, norepinephrine, sympathomimetic, vasoconstriction.

ty·ra·mine

(tī'ră-mēn)
Decarboxylated tyrosine, a sympathomimetic amine having an action in some respects resembling that of epinephrine; present in ergot, mistletoe, ripe cheese, beer, red wine, and putrefied animal matter; elevated in people with tyrosinemia type II.

ty·ra·mine

(TYR) (tī'ră-mēn, tir'ă-)
Decarboxylated tyrosine, a sympathomimetic amine having an action in some respects resembling that of epinephrine; present in ergot, mistletoe, ripe cheese, beer, red wine, and putrefied animal matter.

tyramine (tī´rəmēn´),

n an amino acid synthesized in the body from the essential acid tyrosine. Tyramine stimulates the release of the catecholamines epinephrine and norepinephrine. It is important that people taking monoamine oxidase inhibitors avoid the ingestion of foods and beverages containing tyramine, particularly aged cheese, meats, bananas, yeast-containing products, and alcoholic beverages.

tyramine

1. a decarboxylation product of tyrosine, which may be converted to cresol and phenol, found in decayed animal tissue, ripe cheese, and ergot. Closely related structurally to epinephrine and norepinephrine, it has a similar but weaker action.
2. N-methyl-β-phenylethylamine, a toxic amine found in Acacia berlandieri and mistletoes.
References in periodicals archive ?
In this paper, the interactions of ADR[beta]2 with PEA and tyramine were analyzed and compared by MD simulations.
These two amines have no documented adverse health effects, but can be an important issue for sensitive consumers because they can have a negative synergistic effect with the more toxic histamine and tyramine present in a meal.
Benzylamine, and tyramine to a lesser extent, significantly increased the amount of detected hydrogen peroxide.
As commented above, putrescine was a prevalent amine, with the exception of the sample AC2 in which tyramine contributed with 29.
Acute and subacute toxicity of tyramine, spermidine, spermine, putrescine and cadaverine in rats.
Dietary restrictions are not considered necessary unless a person is particularly sensitive to tyramine, or ingests a very large quantity of tyramine-containing foods.
He points out that wine, particularly red wine, contains chemicals called tyramines that commonly cause headache.
Use of Tyramine containing foods like Bananas, Yogurt, chicken liver and Education of patients and their family about prevention and harmful use of psychoactive substances are the non Pharmacological approached, he added.
Some people suffer reactions to amines found in cheese, particularly histamine and tyramine.
1) were prepared via a chemical synthesis method using tyramine and the acids (syringic acid, vanillic acid, protocatechuic acid, and benzoic acid), according to the method described in "Experimental" section (Park 2005a, 2009).
34) Tyramine is an indirectly acting sympathomimetic agent, is degraded by MAO but in the presence of MAOIs, it escapes degradation and reaches the systemic circulation where it is taken up by the adrenergic neuron, leading to a hypertensive crisis.