Determination of Intracellular GSH Content
Washed erythrocytes were sedimented (3,000 rpm at 4 °C
for 3 min) and lysed in ice-cold perchloric acid. The lysates
were centrifuged at 13,000×g for 3 min, and the superna-
tants were neutralized with cold KOH. The contents of total,
reduced and oxidized GSH in resultant supernatants were
estimated using Glutathione assay kit and measured
fluorometrically on Fluoroscan Ascent FL fluorimeter
(Thermo Labsystems).
Statistics
The obtained results were processed by SigmaPlot soft-
ware package version 11.0 (Jandel Scientific). The statis-
tical differences were assessed using ANOVA. Data are
presented as arithmetic means±SE. p values of less 0.05
were considered significant.