In a small study involving older individuals, two weeks of supplementation with a combination of N-acety-l-cysteine (NAC) and glycine raised red blood cell (RBC) glutathione levels more effectively than either amino acid alone (Guthikonda, et al American Geriatrics Society,Annual Scientific Meeting, 2006.)
J Invest Dermatol 1993;100 2 Suppl:209S-13S.(Google Scholar)
The volume of bacteriostatic water used to reconstitute a lyophilised peptide determines the concentration of the resulting solution, which in turn affects the volume drawn for each dose
Furthermore, the expression of both iNOS and COX-2 is increased by activated NF-B
Many in vitro experiments under different experimental conditions confirmed the good antioxidant activity of melatonin, however, levels of melatonin in certain body organs might not be high enough to exhibit antioxidant properties (Sanchez-Barcelo et al
: ,