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Brief Communication
Nature Neuroscience 3, 757–758 (1 August 2000) | doi:10.1038/77660
Insulin activates ATP-sensitive K+ channels in hypothalamic neurons of lean, but not obese rats
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Abstract
Insulin and leptin receptors are present in hypothalamic regions that control energy homeostasis, and these hormones reduce food intake and body weight in lean, but not obese, Zucker rats. Here we demonstrate that insulin, like leptin, hyperpolarizes lean rat hypothalamic glucose-responsive (GR) neurons by opening KATP channels. These findings suggest hypothalamic K ATP channel function is crucial to physiological regulation of food intake and body weight.
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