Work

A radical explanation for glucose-induced β cell dysfunction

Year: 2003

Type: article

Abstract: The development of type 2 diabetes requires impaired beta cell function. Hyperglycemia itself causes further decreases in glucose-stimulated insulin secretion. A new study demonstrates that hyperglycemia-induced mitochondrial superoxide production activates uncoupling protein 2, which decreases the ATP/ADP ratio and thus reduces the insulin-secretory response. These data suggest that pharmacologic inhibition of mitochondrial superoxide overproduction in beta cells exposed to hyperglycemia could prevent a positive feed-forward loop of glucotoxicity that drives impaired glucose tolerance toward frank type 2 diabetes.

Source: Journal of Clinical Investigation

DOI: 10.1172/jci20501

Author: Michael Brownlee

Institution: Albert Einstein College of Medicine

Language: English

Topic: Pancreatic function and diabetes

Subfield: Endocrinology, Diabetes and Metabolism

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: bronze

Funders: American Diabetes Association, National Institutes of Health