Figure 6: Effect of pentoxifylline, diltiazem, and rosuvastatin treatment on GSH (mmol/mg protein) in diabetic and non-diabetic rats. Effect of treatment with pentoxifylline (40 mg/kg) and diltiazem (10mg/kg.) for 8 weeks on GSH in experimentally STZ induced diabetic nephropathy. Data are presented as mean ± SEM. a: Significant difference versus control group at p < 0.05. b: Significant difference versus diabetic control group at p < 0.05.