Expression of ankyrin repeat and suppressor of cytokine signaling box protein 4 (Asb-4) in proopiomelanocortin neurons of the arcuate nucleus of mice produces a hyperphagic, lean phenotype.

Abstract excerpt

Ankyrin repeat and suppressor of cytokine signaling box-containing protein 4 (Asb-4) is specifically expressed in the energy homeostasis-related brain areas and colocalizes with proopiomelanocortin (POMC) neurons of the arcuate nucleus (ARC). Injection of insulin into the third ventricle of the rat brain increased Asb-4 mRNA expression in the paraventricular nucleus but not in the ARC of the hypothalamus, whereas...

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