Amino acids and plasma antioxidant capacity |
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Authors: | Dr. E. Meucci M. C. Mele |
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Affiliation: | (1) Istituto di Chimica Biologica, Università Cattolica S. Cuore, Largo F. Vito, I-00168 Roma, Italy |
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Abstract: | Summary Amino acids antioxidant capacity has been investigated and compared with the chain-breaking antioxidant activity of known compounds as ascorbic acid and Trolox. Basic and acidic amino acids and most of neutral ones showed no antioxidant capacity. On the contrary, tryptophan, tyrosine, cysteine and homocysteine showed antioxidant ability at concentrations which are within the usually reported physiological ranges.These findings are discussed in connection with the antioxidant capacity ascribed to plasma proteins, as human serum albumin. |
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Keywords: | Amino acids Antioxidant capacity Oxidative stress Plasma proteins Human serum albumin |
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