arginine

(redirected from L-arginine)
Also found in: Dictionary, Thesaurus, Medical.

arginine

(är`jənĭn), organic compound, one of the 20 amino acidsamino acid
, any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins.
..... Click the link for more information.
 commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins. Its basic side chain adds a positive charge and hence a greater degree of water-solubility to proteins in neutral solution. Although arginine can be synthesized from cellular metabolites, it is usually considered essential to the diet of children for the maintenance of normal rates of growth. Arginine is the direct metabolic precursor of ureaurea
, organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated in crystalline form; its crystallization was described in the early 18th cent.
..... Click the link for more information.
, the dominant nitrogenous waste product of most mammals. It was discovered in protein in 1895.

arginine

[′ar·jə‚nēn]
(biochemistry)
C6H14N4O2 A colorless, crystalline, water-soluble, essential amino acid of the α-ketoglutaric acid family.
References in periodicals archive ?
Healthy endothelial cells release nitric oxide synthase, an enzyme that catalyzes production of nitric oxide from the amino acid L-arginine.
The L-arginine content of a typical Western diet has been estimated to be 5.
Effect of L-arginine on intestinal mucosal immune barrier function in weaned pigs after Escherichia coli LPS challenge.
Corabion is a diet supplement consisting of vitamin C, vitamin E, L-arginine, and the [omega]3-PUFAs EPA and DHA.
Elevated arginase activity could limit NO synthesis by reducing L-arginine availability for NOS.
Some studies found that supplemental L-arginine lead to death in a number of patients with cardiovascular and PAD history.
Activated macrophage conditioned medium: Identification of the soluble factors inducing cytotoxicity and the l-arginine dependent effector mechanism.
Effect of L-arginine on immune function: a meta-analysis.
If these are too high for the body naturally to cope with, nitric oxide levels can be boosted by orally administered L-arginine.
In humans with normal left ventricular (LV) function, the use of L-arginine cardioplegic arrest during coronary artery graft surgery has been shown to significantly decrease the biochemical markers of oxidative stress (4,5) inflammation (6) and myocardial cell death (4,7).