Drift octanoic acid (caprylic), formed during the biosynthesis of fatty acids or through β-oxidation a long chain fatty acids. Its structure contains two sulfur atoms linked by a disulfide bridge, and it is considered as an oxidant. The molecule exists in two forms R-(+)-lipoic acid (RLA) and S-(-)-lipoic acid (SLA) or as a mixture of the two R / S-LA, all these forms of lipoic acid can be reduced to dihydrolipoic acid (R-DHLA) by at least two cytosolic enzymes glutathione reductase the (which plays an important role in antioxidant defense) and thioredoxin reductase (TRX1), (mediating the final step in electron transfer pathway for the reduction of nucleoside bisphosphate, and its activity essential for cell growth) and two mitochondrial enzymes: the lipoamide dehydrogenase and thioredoxin pockets to (Trx 2). Acid R-(+)-lipoic acid (RLA) can be reduced by enzymatic or chemical to acid R-(-)-dihydrolipoic (R-DLHA) and regenerated by the activity of an enzyme called lipoamidasa.
Dr. Iraima Acuña. Nutrition Specialist.
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