6533b854fe1ef96bd12addca

RESEARCH PRODUCT

Effect of tormentic acid on insulin secretion in isolated rat islets of langerhans

A. M. VillarM. D. IvorraMiguel Payá

subject

Pharmacologymedicine.medical_specialtygeographygeography.geographical_feature_categorymedicine.drug_classTormentic acidIsletSulfonylureaIn vitroGlibenclamidechemistry.chemical_compoundEndocrinologychemistryInternal medicinemedicineInsulin secretionIsolated isletsmedicine.drug

description

Tonnentic acid was isolated as the hypoglycemic agent of Poterium ancistroides Desf. The present study reports effects of this compound on isolated islets of Langerhans. We demonstrate that tormentic acid in the presence of 1.66 mM glucose initiates insulin secretion by isolated rat islets of Langerhans in a dose-dependent fashion at concentrations ranging from 0.05 to 0.5 mM. However, the compound has no effect on the insulin-releasing capacity of 16.6 mM glucose. Similar results were obtained with the sulfonylurea glibenclamide (0.01 mM) used as a reference. These results suggest that the hypoglycemic effect of tormentic acid is due to a diect effect of the compound in vitro.

https://doi.org/10.1002/ptr.2650030407