n. a peptide containing the amino acids glutamic acid, cysteine, and glycine. It functions as a coenzyme in several oxidation-reduction reactions. Glutathione serves as an antioxidant: it reacts with potentially harmful oxidizing agents and is itself oxidized (See also selenium). This is important in ensuring the proper functioning of proteins, haemoglobin, membrane lipids, etc. High levels of glutathione in the blood are associated with longevity.
Subjects: Medicine and Health — Science and Mathematics.