Diabetes Metab. 1997 Feb;23(1):58-60.

The effect of acute glutathione treatment on sorbitol level in erythrocytes from diabetic patients.

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Dept. of Internal Medicine, University of Genoa, Italy.

Abstract

This study evaluated the effect of acute intravenous glutathione (GSH) infusion on red blood cell (RBC) sorbitol levels in 21 diabetic subjects and 6 normal controls of similar age and body mass index (Kg/m2). All patients received 1,200 mg of GSH in 500 ml of isotonic saline solution during one-hour intravenous administration. At the end of acute infusion of GSH, sorbitol concentration decreased from 20.90 +/- 1.16 to 16.24 +/- 0.81 nmol/g Hb (p < 0.001) in RBCs of diabetic subjects. No significant changes were observed in controls. These data support the hypothesis that GSH depletion, by reducing glycolytic flux to pyruvate, may enhance the rate of glucose metabolism through the polyol pathway and worsen the metabolic imbalance of diabetic tissues. The administration of exogenous GSH could interrupt this vicious circle.

PMID:: 9059767; [PubMed - indexed for MEDLINE]

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