PMID: 7528151Jan 1, 1994Paper

Outlook for the future in the treatment of diabetic retinopathy

Diabète & Métabolisme
B VialettesC Atlan-Gepner

Abstract

With regard to diabetic retinopathy, in addition to the demonstration by the DCCT study that prevention is achieved by good metabolic control, our present knowledge on physiopathology leads us to imagine three types of possible therapeutic approach; inhibition of glucotoxicity, improvement of capillary flow, blockade of angiogenesis. 1) Inhibition of glucotoxicity Aldose reductase inhibitors can prevent cataract in diabetic or galactosemic rats. The effect of these drugs on retinopathy, evaluated in some clinical trials, remains controversial, suggesting a minor role. Aminoguanidine is an inhibitor of formation of advanced glycosylation end-products (AGE). This compound has been tested on a model of experimental retinopathy in rats. Parallel to the AGE decrease in retina, formation of microaneurysms and loss of endothelial cells in capillaries were delayed. Clinical tolerance allows human application and randomised trials will give further information on this potentially efficient drug. 2) Improvement of capillary flow This objective can be obtained by drugs inhibiting platelet aggregation or improving erythrocyte or leucocyte deformability. Clinical trials using such compounds were not very conclusive. 3) Blockade of angiogene...Continue Reading

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