Oxidative stress and nitrate/nitrite (NOx) status following citrulline supplementation in type 2 diabetes: a randomised, double-blind, placebo-controlled trial.

Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association
S AziziR Mahdavi

Abstract

The pathogenesis of diabetes is accompanied by oxidative stress. Citrulline can be considered as a potent antioxidant. The present study aimed to examine the effects of citrulline supplementation on the status of oxidative stress and serum levels of nitrite/nitrate (NOx) in patients suffering from type 2 diabetes (T2DM). The present study comprises a double-blind placebo-controlled randomised clinical trial. The study subjects include 54 patients with T2DM chosen from specialised clinics of Tabriz University of Medical Sciences. The patients were allocated to one of the placebo or intervention groups. The patients in the placebo and the intervention group received one sachet of microcrystalline cellulose or l-citrulline (3 g), respectively, every day for 2 months. Malondialdehyde (MDA), glutathione peroxidase (GPx), total antioxidant capacity (TAC), superoxide dismutase (SOD), serum levels of fasting blood sugar (FBS), citrulline and NOx were assessed before and after the intervention. Forty-five patients completed the trial. Significant decreases were found in serum levels of FBS and MDA. Serum levels of TAC, citrulline and NOx in the intervention group increased compared to those of the placebo group, after adjusting the data...Continue Reading

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