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Am J Physiol Endocrinol Metab. 2007 Oct;293(4):E880-9. Epub 2007 Jul 24.

The Walter B. Cannon Physiology in Perspective Lecture, 2007. ATP-sensitive K+ channels and disease: from molecule to malady.

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1
Henry Wellcome Centre for Gene Function, Dept. of Physiology, Anatomy and Genetics, Univ. of Oxford, Parks Road, Oxford OX1 3PT, UK. frances.ashcroft@dpag.ox.ac.uk

Abstract

This essay is based on a lecture given to the American Physiological Society in honor of Walter B. Cannon, an advocate of homeostasis. It focuses on the role of the ATP-sensitive potassium K(+) (K(ATP)) channel in glucose homeostasis and, in particular, on its role in insulin secretion from pancreatic beta-cells. The beta-cell K(ATP) channel comprises pore-forming Kir6.2 and regulatory SUR1 subunits, and mutations in either type of subunit can result in too little or too much insulin release. Here, I review the latest information on the relationship between K(ATP) channel structure and function, and consider how mutations in the K(ATP) channel genes lead to neonatal diabetes or congenital hyperinsulinism.

PMID:
17652156
DOI:
10.1152/ajpendo.00348.2007
[Indexed for MEDLINE]
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