Cellular and physiological effects of arginine

Betty C Tong1, Adrian Barbul

  • 1Department of Surgery, Johns Hopkins Medical Institutions, Baltimore, MD, USA.

Summary

Arginine is a semi-essential amino acid that plays a key role in various physiological processes. It is involved in protein synthesis and is converted into several biologically active compounds like nitric oxide, creatine, and polyamines. Arginine's effects are mediated through two enzyme systems: arginase and nitric oxide synthase. The review highlights how arginine influences immune function, wound healing, and vascular tone. It also modulates hormone secretion, insulin sensitivity, and endothelial function. Arginine's role in modulating atherosclerotic disease and tumor growth is discussed. The study suggests that arginine's effects are mediated through both nitric oxide dependent and independent pathways. The authors conclude that arginine is a biologically active compound with diverse physiological and pharmacological activities.

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