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Related Experiment Videos

Diabetic cataracts and flavonoids.

S D Varma, A Mizuno, J H Kinoshita

    Science (New York, N.Y.)
    |January 14, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Quercitrin, an aldose reductase inhibitor, slowed cataract formation in diabetic animals by reducing sorbitol buildup in the eye lens. This confirms aldose reductase

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    Area of Science:

    • Biochemistry
    • Ophthalmology
    • Pharmacology

    Background:

    • Diabetic cataracts are a significant complication of diabetes mellitus.
    • Aldose reductase enzyme activity is implicated in the pathogenesis of diabetic cataracts.
    • Sorbitol accumulation in the lens is a key factor in cataract development.

    Purpose of the Study:

    • To investigate the efficacy of quercitrin, an aldose reductase inhibitor, in preventing or delaying cataract formation in diabetic animals.
    • To determine the role of aldose reductase in the development of diabetic lens opacity.

    Main Methods:

    • Oral administration of quercitrin to diabetic Octodon degus.
    • Measurement of sorbitol accumulation in the lens.
    • Monitoring the onset and progression of cataract.

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    Main Results:

    • Quercitrin administration significantly reduced sorbitol accumulation in the lenses of diabetic Octodon degus.
    • Continuous administration of quercitrin effectively delayed the onset of cataract.
    • These findings were consistent with observations in galactosemic rats.

    Conclusions:

    • Aldose reductase plays a critical role in initiating lens opacity in diabetes, similar to galactosemia.
    • Aldose reductase inhibitors like quercitrin show potential for therapeutic intervention in diabetic cataracts.
    • Targeting aldose reductase may impede the progression of cataract development in diabetic conditions.