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Related Experiment Videos

Insulin like activity in (-) epicatechin.

F Ahmad1, P Khalid, M M Khan

  • 1Division of Biochemistry, Central Drug Research Institute, Lucknow, India.

Acta Diabetologica Latina
|October 1, 1989
PubMed
Summary
This summary is machine-generated.

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(-) Epicatechin, derived from Pterocarpus marsupium, exhibits insulin-like effects and stimulates glucose uptake. This natural compound shows promise as an antidiabetic agent by mimicking insulin's actions without competing for its binding sites.

Area of Science:

  • Biochemistry
  • Pharmacology
  • Endocrinology

Background:

  • Pterocarpus marsupium bark extract is traditionally used in India for diabetes management.
  • (-) Epicatechin is identified as the active insulinogenic principle in this extract.

Purpose of the Study:

  • To investigate the insulin-like activities of (-) Epicatechin in vitro.
  • To determine if (-) Epicatechin interacts with insulin receptors.

Main Methods:

  • Assessed oxygen uptake in fat cells and tissue slices.
  • Measured glycogen and glucose uptake in rat diaphragm.
  • Evaluated inhibition of theophylline-induced lipolysis in fat pads.
  • Performed competitive binding assays with 125I-insulin and liver cell plasma membranes.

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Main Results:

  • (-) Epicatechin stimulated oxygen uptake and increased glycogen and glucose uptake in a dose-dependent manner.
  • It inhibited lipolysis, similar to insulin.
  • Competitive binding studies revealed that (-) Epicatechin does not share the insulin binding site.
  • (-) Epicatechin did not affect glucagon release from islets in vitro.

Conclusions:

  • (-) Epicatechin possesses both insulinogenic and insulin-like properties.
  • Its mechanism of action is distinct from insulin's receptor binding.
  • These findings support its potential as a therapeutic agent for diabetes.