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L-arginine is recognized as safe (GRAS-status) at intakes of up to 20 grams per day. [51] L-arginine is found in many foods, such as fish, poultry, and dairy products, and is used as a dietary supplement. [52] It may interact with various prescription drugs and herbal supplements. [52]
Chemical formula: C 6 H 14 N 4 O 2 Molar mass: 174.2 g·mol −1 Systematic name: 2-amino-5-(diaminomethylidene amino)pentanoic acid Abbreviations: R, Arg Synonyms: 2-amino-5-guanidinopentanoic acid
l-Arginine l-pyroglutamate, also known as pirglutargine and arginine pidolate, is the l-arginine salt of pyroglutamic acid. Arginine pyroglutamate is a delivery form of arginine. Physical and chemical properties
[1] [2] [3] It is a powdered nutritional supplement that contains 3 grams of calcium β-hydroxy β-methylbutyrate, 14 grams of L-arginine, and 14 grams of L-glutamine per two daily servings. [1] Juven has been shown to increase lean body mass during clinical trials in individuals with AIDS and cancer, but not rheumatoid cachexia.
The metabolism experiments' results help to establish a biotransformation mechanism for LAE after ingestion. Figure 3 is the proposed pathway of LAE degradation by which it is rapidly hydrolyzed either by loss of the lauroyl side chain to form arginine ethyl ester and/or cleavage of the ethyl ester to form N α-lauroyl-L-arginine (LAS).
Arginine alpha-ketoglutarate (AAKG) is a salt of the amino acid arginine and alpha-ketoglutaric acid. It is marketed as a bodybuilding supplement. [1] Peer-reviewed studies have found no increase in muscle protein synthesis or improvement in muscle strength from use of AAKG as a dietary supplement. [1] [2] [3]
l-Arginine ethyl ester is a white powder quickly soluble in hot water. It has a characteristically bad and bitter taste, thus before drinking it is recommended to mix the powder with a strongly flavored beverage or citrus juice. [dubious – discuss] Arginine ethyl ester falls under the category of protected aminoacids.
In the field of enzymology, a dimethylargininase, also known as a dimethylarginine dimethylaminohydrolase (DDAH), is an enzyme that catalyzes the chemical reaction: . N-omega,N-omega'-methyl-L-arginine + H 2 O dimethylamine + L-citrulline