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Related Experiment Videos

Insulin secretion and sensitivity in acromegaly.

T S Jap1, L T Ho

  • 1Department of Medicine, Veterans General Hospital, Taipei, Taiwan.

Clinical Physiology and Biochemistry
|January 1, 1990
PubMed
Summary

Acromegaly patients exhibit impaired carbohydrate metabolism. Excess growth hormone leads to glucose intolerance, higher insulin levels, and insulin resistance, impacting glucose utilization.

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Area of Science:

  • Endocrinology
  • Metabolic Research
  • Human Physiology

Background:

  • Acromegaly is a condition characterized by excess growth hormone (GH).
  • GH significantly influences carbohydrate metabolism.
  • Understanding GH's impact on glucose regulation is crucial for managing acromegaly complications.

Purpose of the Study:

  • To investigate the effects of excess growth hormone on carbohydrate metabolism.
  • To assess glucose-stimulated insulin secretion and glucose utilization in acromegaly patients.

Main Methods:

  • Studied 6 acromegaly patients and 6 matched normal controls.
  • Measured plasma glucose and serum insulin during oral glucose tolerance tests.
  • Utilized euglycemic glucose clamp studies to assess insulin sensitivity and glucose disposal.

Main Results:

  • Acromegalic patients showed higher fasting plasma glucose and insulin levels.
  • Elevated glucose and insulin responses were observed post-glucose loading in acromegalics.
  • Acromegaly patients exhibited significantly lower glucose disposal rates, indicating insulin resistance.

Conclusions:

  • Acromegaly is associated with glucose intolerance and hyperinsulinemia.
  • Patients with acromegaly demonstrate significant insulin resistance.
  • Excess growth hormone negatively impacts the body's ability to regulate glucose effectively.

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