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Peripheral glomerular basement membrane thickness in the normal and diabetic monkey.

C W Jones, M S West, D T Hong

    Laboratory Investigation; a Journal of Technical Methods and Pathology
    |August 1, 1984
    PubMed
    Summary

    Diabetic rhesus monkeys treated long-term with insulin showed increased glomerular basement membrane thickness. This finding in diabetic monkeys mirrors changes seen in human diabetes mellitus.

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    Area of Science:

    • Nephrology
    • Endocrinology
    • Primate Models

    Background:

    • Diabetic nephropathy is a major complication of diabetes mellitus.
    • Glomerular basement membrane (GBM) thickening is a characteristic pathological feature of diabetic nephropathy.
    • Animal models are crucial for understanding the pathogenesis of diabetic complications.

    Purpose of the Study:

    • To investigate peripheral glomerular basement membrane (GBM) thickness in a rhesus monkey model of diabetes.
    • To correlate GBM thickness with diabetes duration and treatment in these non-human primates.

    Main Methods:

    • Diabetes was induced in rhesus monkeys via streptozotocin injection or pancreatectomy.
    • Peripheral GBM thickness was measured using a standardized procedure.
    • Monkeys were analyzed based on age, sex, diabetes severity, and duration of treatment.

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    Main Results:

    • In control monkeys, GBM thickness increased with age up to 7 years, then stabilized.
    • Non-insulin-dependent diabetic monkeys showed no significant GBM thickening compared to controls.
    • Insulin-dependent diabetic monkeys treated for 2 to 12.5 years exhibited significantly increased GBM thickness.

    Conclusions:

    • Peripheral GBM thickening is a measurable indicator in insulin-dependent diabetic monkeys.
    • This thickening is analogous to changes observed in human diabetic nephropathy.
    • The rhesus monkey model provides valuable insights into diabetic kidney disease progression.