Alterations in the erythrocyte antioxidant system of blood stored in blood bags.
In the present study, we measured the concentrations of reduced glutathione (GSH) and malonyldialdehyde (MDA) and the activities of glutathione peroxidase (GSH-Px), glutathione S-transferase (GSH-S-T), superoxide dismutase (SOD), catalase (CAT) and glucose-6-phosphate dehydrogenase (G-6-PD) in erythrocytes obtained freshly from adult male donors which was preserved with CPDA-1 anticoagulant (citrate,phosphate, dextrose, adenine) on different days of storage. At the end of the study, storage-associated alterations in antioxidant activities were noted and discussed. GSH, GSH-Px, GSH-S-T, SOD, CAT and G-6-PD activities decreased, but erythrocyte MDA levels, as anindex of lipid peroxidation, increased during the storage period. According to our results, glutathione-dependent antioxidant systems in erythrocytes might be depleted during long storage in blood bags.
Korgun
D K
DK
Akdeniz University, Medical Faculty, Department of Biochemistry, Antalya, Turkey.
Bilmen
S
S
Yesilkaya
A
A
D000328:Adult; D000975:Antioxidants / Q000494:pharmacology*; D001793:Blood Preservation; D002374:Catalase / Q000378:metabolism; D004912:Erythrocytes / Q000187:drug effects / Q000201:enzymology* / Q000378:metabolism; D005954:Glucosephosphate Dehydrogenase / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D006801:Humans; D015227:Lipid Peroxidation; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D013482:Superoxide Dismutase / Q000187:drug effects
D000975:Antioxidants; D008315:Malondialdehyde; D005954:Glucosephosphate Dehydrogenase; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase