ATP-sensitive potassium channelopathies: focus on insulin secretion

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ATP-sensitive potassium channelopathies: focus on insulin secretion.

ATP-sensitive potassium (K(ATP)) channels, so named because they are inhibited by intracellular (ATP), play key physiological roles in many tissues. In pancreatic beta cells, these channels regulate glucose-dependent insulin secretion and serve as the target for sulfonylurea drugs used to treat type 2 diabetes. This review focuses on insulin secretory disorders, such as congenital hyperinsuline...

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Cardiovascular ATP-sensitive potassium channels

Sulfonylurea drugs stimulate endogenous insulin secretion by blockade of ATP-sensitive potassium channels in pancreatic beta cells. These drugs are widely used in the treatment of type 2 diabetes. However, as ATP-sensitive potassium channels also exist in cardiomyocytes and coronary and peripheral arterial vascular smooth muscle cells, sulfonylurea drug usage in theory may cause unwanted cardio...

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Early increases in renal kallikrein secretion on administration of potassium or ATP-sensitive potassium channel blockers in rats.

1 This study aimed to examine whether administration of potassium or ATP-sensitive potassium channel (KATP channel) blockers caused early increases in renal kallikrein (KK) secretion. To clarify this mechanism, the effect on renal KK secretion of a KATP channel blocker was compared with the effect resulting from use of an osmotic diuretic or volume load. Furthermore, the effect on potassium-ind...

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ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 2005

ISSN: 0021-9738

DOI: 10.1172/jci25495