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Summary The knowledge of the mechanism whereby glucose and other fuel stimuli promote the release of insulin by the pancreatic beta cell remains fragmentary. The closure of metabolically sensitive K+ channels and a rise in cytosolic free Ca2+ are key features of beta-cell metabolic signal transduction. However, these two signalling events do not account for the dose dependence of glucose-induced insulin secretion. In fact, recent evidence indicates that there are K...
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