Elevated F 2-isoprostanes in thalassemic patients

Abstract

This study was aimed at investigating oxidative stress in thalassemic patients by measurement of the oxidative damage biomarker, F 2-isoprostanes (F 2-IsoPs), using gas chromatography-mass spectrometry. The results showed that the mean value of urinary F 2-IsoPs, normalized with creatinine, in the thalassemic group was significantly higher than that from healthy subjects (3.38 ± 2.15 ng/mg creatinine vs 0.86 ± 0.55 ng/mg creatinine, respectively), and the mean value of plasma total F 2-IsoPs in the thalassemic group was also significantly higher than that from healthy subjects (0.39 ± 0.15 ng/ml vs 0.18 ± 0.03 ng/ml, respectively). Serum ferritin, erythrocyte superoxide dismutase (SOD), glutathione peroxidase, glutathione, and TBARS levels after treatment of erythrocytes with H 2O 2 were also investigated, and serum ferritin and erythrocyte SOD levels were significantly higher in thalassemic patients. Our findings are consistent with oxidative stress in thalassemia patients. © 2007 Elsevier Inc. All rights reserved.