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Related Experiment Videos

Enterostatin--its ability to inhibit insulin secretion and to decrease high-fat food intake

J Mei1, Y Cheng, C Erlanson-Albertsson

  • 1Department of Medical and Physiological Chemistry, University of Lund, Sweden.

International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity
|December 1, 1993
PubMed
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Enterostatin, a peptide, reduces high-fat food intake and inhibits insulin secretion. These effects suggest potential roles in preventing obesity and type II diabetes linked to hyperinsulinemia.

Area of Science:

  • Endocrinology
  • Neuroscience
  • Metabolic Research

Background:

  • Enterostatin is a peptide known to reduce food intake, particularly fats.
  • Obesity and type II diabetes are often linked by hyperinsulinemia.

Purpose of the Study:

  • To investigate the effects of enterostatin and its fragments on insulin secretion.
  • To examine the impact of enterostatin and its fragments on high-fat diet intake.

Main Methods:

  • Isolated rat islets were used to measure insulin secretion.
  • Intraventricular administration in rats was used to assess diet intake.
  • Enterostatin (Val-Pro-Asp-Pro-Arg), des-arg-enterostatin (Val-Pro-Asp-Pro), and Asp-Pro-Arg were tested.

Main Results:

Related Experiment Videos

  • Enterostatin and des-arg-enterostatin significantly inhibited insulin secretion (55.3% and 53.6%, respectively) at 1.6 x 10(-4) M.
  • The tripeptide Asp-Pro-Arg did not significantly affect insulin secretion at the same concentration.
  • Enterostatin (200 ng) inhibited high-fat diet intake by 45.0% after intraventricular administration, while its fragments did not.

Conclusions:

  • Enterostatin's ability to reduce high-fat intake and insulin secretion is significant.
  • These actions may offer therapeutic potential for obesity and type II diabetes.
  • The specific peptide sequence of enterostatin is crucial for its observed effects.