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Antiobesogenic effects of central GIPR antagonism
Jessica T. Y. Yue, Tony K. T. Lam
Jessica T. Y. Yue, Tony K. T. Lam
Published August 12, 2019
Citation Information: J Clin Invest. 2019;129(9):3532-3535. https://doi.org/10.1172/JCI130755.
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Commentary

Antiobesogenic effects of central GIPR antagonism

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Abstract

Developing effective treatments for obesity and related metabolic disease remains a challenge. One logical strategy targets the appetite-regulating actions of gut hormones such as incretins. One of these incretins, glucose-dependent insulinotropic polypeptide (GIP), has garnered much attention as a potential target: however, whether it is beneficial to boost or block the action of GIP to promote weight loss remains an unresolved question. In this issue of the JCI, Kaneko and colleagues show that antagonizing GIP signaling in the CNS enhances the weight-reducing effects of leptin in rodents with diet-induced obesity. The authors posit that an increase in circulating intestinally derived GIP, as a consequence of overnutrition, acts in the brain to impair hypothalamic leptin action, resulting in increased food intake and body weight gain. This research advances the idea that multiple GIP signaling pathways and mechanisms exist in the obese state and offers intriguing insights into the antiobesogenic consequences of antagonizing brain GIP action.

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Jessica T. Y. Yue, Tony K. T. Lam

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