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Sulfonylurea-induced decrease of muscle capillary basement membrane thickness in diabetes.

R A Camerini-Davalos1, C A Velasco, M Glasser

  • 1Department of Medicine, New York Medical College, New York.

Diabetes Research and Clinical Practice
|July 13, 1988
PubMed
Summary
This summary is machine-generated.

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Effective glipizide treatment in type 2 diabetes patients significantly reduced muscle capillary basement membrane width. This suggests diabetic microangiopathy may be reversible with good glycemic control.

Area of Science:

  • Endocrinology
  • Diabetology
  • Vascular Biology

Background:

  • Diabetic microangiopathy, characterized by capillary basement membrane thickening, is a common complication of type 2 diabetes.
  • This thickening contributes to long-term diabetic complications and is often considered progressive.

Purpose of the Study:

  • To investigate the effect of glipizide treatment on muscle capillary basement membrane width in type 2 diabetic patients.
  • To determine if improved glycemic control can reverse or halt the progression of diabetic microangiopathy.

Main Methods:

  • Muscle biopsies were performed on 53 type 2 diabetic patients over two years.
  • Patients were randomized to receive either glipizide or a placebo.
  • Capillary basement membrane width, plasma glucose, and glycosylated hemoglobin A1 levels were measured.

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Main Results:

  • Glipizide treatment significantly decreased muscle capillary basement membrane width (P=0.02).
  • Placebo group showed a non-significant increase in basement membrane width.
  • Glipizide significantly improved glycemic control, with plasma glucose and HbA1c levels decreasing (P<0.001).
  • In some patients, HbA1c normalized, and basement membrane width approached non-diabetic levels.

Conclusions:

  • Effective glycemic control with glipizide can reduce basement membrane thickening in type 2 diabetes.
  • Diabetic microangiopathy may not be an inevitably progressive condition.
  • These findings support the potential for therapeutic intervention to reverse microvascular changes in diabetes.