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Methylarginine
N-Methylarginine is an inhibitor of nitric oxide synthase. Chemically, it is a methyl derivative of the amino acid arginine. It is used as a biochemical tool in the study of physiological role of nitric oxide.
The inhibiting effect of N-methylarginine on vasodilation is lower in hypertensive patients than in normal subjects, indicating endothelial dysfunction. The inhibiting effect of N-methylarginine on vasodilation declines progressively with age, but has been restored with vitamin C in the oldest subjects.
References
References
- (2008). "Asymmetric dimethylarginine (ADMA) and other endogenous nitric oxide synthase (NOS) inhibitors as an important cause of vascular insulin resistance". Hormone and Metabolic Research.
- (1994). "N-monomethyl arginine, an inhibitor of nitric oxide synthase, suppresses the development of adjuvant arthritis in rats". [[Arthritis & Rheumatology]].
- (2012). "Age-related reduction of NO availability and oxidative stress in human". [[Hypertension (journal).
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