Aldose reductase in a highly purified state is unstable. It requires the presence of thiol groups to maintain it in an active form. The enzyme apparently exists in 3 forms, only one of which is active. Tetramethylene glutaric acid (TMG) is an effective aldose reductase inhibitor. However, a relatively high level of TMG is needed to depress dulcitol synthesis in the lens incubated in a galactose...

A novel approach that combines neural networks, computer docking and quantum mechanical method is developed to design potent aldose reductase inhibitors (ARIs). Neural networks is employed to determine the quantitative structure-activity relationship (QSAR) among the known ARIs. The physical descriptors of the neural networks, such as electronegativity and molar volume, are evaluated with first...

Cataract formation in galactosemic rats was studied by ophthalmoscopy, slit-lamp biomicroscopy, and by light microscopy using plastic embedding with methacrylate. Untreated rats developed nuclear cataracts by 14 days and mature cataracts by 21 days. However, rats treated with the aldose reductase inhibitor sorbinil did not develop any cataractous change for up to 8 months of 50% galactose feedi...

Objective(s):In recent years, the chemistry of Tetrazolo[5',1':2,3][1,3,4]thiadiazepino [7,6-b]quinolines have received considerable attention owing to their synthetic and effective biological importance which exhibits a wide variety of biological activity. As the inhibitor of aldose reductase, the aforementioned compounds may have implication in preventing complications of diabetes. Materials...

ext to the debate as to whether chronic hyperglycemia is the primary cause of the late vascular complications of diabetes, the longest running controversy among researchers and clinicians studying this disease is the role of the sorbitol pathway, particularly its initial enzymatic step, the reduction of glucose to sorbitol by aldose reductase in the pathogenesis of these complications. Because ...