Many of the complications of diabetes are linked to oxidative damage.
We set out to determine whether the reduced antioxidant capacity (as reflected by glutathione concentration) in type diabetes is due to reduced synthesis or increased consumption of glutathione(GSH), and whether short-term dietary supplementation with glycine and cysteine, precursors of GSH, would improve oxidant status.
2H2-glycine was infused for 7 hours to measure glycine kinetics and red blood cell GSH (RBC-GSH) synthesis in diabetic and euglycemic subjects. These same measurements were repeated in a subset of diabetic subjects after 2 weeks of supplementation with glycine and cysteine, the precursors of glutathione. Lipid hydroperoxide and lymphocyte glutathione concentration were also measured.
Twenty euglycemic subjects and 10 subjects with type 2 diabetes participated in the unsupplemented study.
Authors
Reeds, Peter
Jahoor, Farook
Siripoom, Mckay - BAYLOR COLLEGE/MEDICINE
Morlese, John - UNIV. WEST INDIES
Forrester, Terrence - UNIV. WEST INDIES
Jackson, Alan - ROYAL COLLEGE/PHYSICIANTS
Balasubramanyan, Ashok - BAYLOR COLLEGE/ MEDICINE
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