Population studies taking into account basal, absolute, and net increases of postmethionine-load homocysteine levels, in relation to dietary intake and methionine, folate, and status of vitamins B 6 and B 12 to confirm the involvement of methionine excess in both basal and postload hyperhomocysteinemia

The most significant marker, considered a gold standard, was F2-isoprostane and this was significantly more reduced by oral Acetylglutathione than with the IV glutathione.[11],[12] Oral S-Acetyl Glutathione, dosed 200mg daily for 7 days, AM IV 1400mg, single dose Serum and urine tested after 1 week of administration N=6, (4 female, 2 male, average age 45) Markers chosen are measures of Antioxidants F2-Isoprostane is the Gold Standard of oxidative stress markers Conclusion: Oral S-A GSH compares favourably to a one-time, equivalent dose of IV administered Glutathione GSH : Blood levels are lower in the A-GSH group as compared to the IV group because the A-GSH is being taken up by the cell.[13] This is substantiated by the following markers: F2-Iso : (F2- isoprostane ) measurement of redox status and oxidative stress
doi:10.1385/0-89603-268-X:329
L., Hua, X., Lee, S., Ho, A