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Current Medicinal Chemistry
ISSN (Print): 0929-8673
ISSN (Online): 1875-533X
Epub Full Text Article
DOI: 10.2174/0929867321666140706141806      Price:  $95

Physiological Effect and Therapeutic Application of Alpha Lipoic Acid

Author(s): S. Park, U. Karunakaran, N. H. Jeoung, J. H. Jeon and I. K. Lee
Reactive oxygen species and reactive nitrogen species promote endothelial dysfunction in old age and contribute to the development of cardiovascular diseases such as atherosclerosis, diabetes, and hypertension. -lipoic acid was identified as a catalytic agent for oxidative decarboxylation of pyruvate and -ketoglutarate in 1951, and it has been studied intensively by chemists, biologists, and clinicians who have been interested in its role in energetic metabolism and protection from reactive oxygen species-induced mitochondrial dysfunction. Consequently, many biological effects of α-lipoic acid supplementation can be attributed to the potent antioxidant properties of α-lipoic acid and dihydro α-lipoic acid. The reducing environments inside the cell help to protect from oxidative damage and the reduction-oxidation status of -lipoic acid is dependent upon the degree to which the cellular components are found in the oxidized state. Although healthy young humans can synthesize enough α-lipoic acid to scavenge reactive oxygen species and enhance endogenous antioxidants like glutathione and vitamins C and E, the level of α-lipoic acid significantly declines with age and this may lead to endothelial dysfunction. Furthermore, many studies have reported α-lipoic acid can regulate the transcription of genes associated with anti-oxidant and anti-inflammatory pathways. In this review, we will discuss recent clinical studies that have investigated the beneficial effects of α-lipoic acid on endothelial dysfunction and propose possible mechanisms involved
α-keto acid dehydrogenase complex, Cardiovascular disease, Endothelial dysfunction, Glutathione, Glycine cleavage enzyme, Reactive oxygen species, Thiol-disulfide, Thioredoxin
Department of Internal Medicine Kyungpook National University School of Medicine 50 Samduk-2Ga, Jung-Gu Daegu, Republic of Korea, 700-721