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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

  1. (2008). "Asymmetric dimethylarginine (ADMA) and other endogenous nitric oxide synthase (NOS) inhibitors as an important cause of vascular insulin resistance". Hormone and Metabolic Research.
  2. (1994). "N-monomethyl arginine, an inhibitor of nitric oxide synthase, suppresses the development of adjuvant arthritis in rats". [[Arthritis & Rheumatology]].
  3. (2012). "Age-related reduction of NO availability and oxidative stress in human". [[Hypertension (journal).
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