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Τρίτη 20 Φεβρουαρίου 2018

Brain Feeding Circuits after Roux-en-Y Gastric Bypass

Publication date: Available online 20 February 2018
Source:Trends in Endocrinology & Metabolism
Author(s): Mohammed K. Hankir, Florian Seyfried, Alexander D. Miras, Michael A. Cowley
Metabolic surgical procedures, such as Roux-en-Y gastric bypass (RYGB), uniquely reprogram feeding behavior and body weight in obese subjects. Clinical neuroimaging and animal studies are only now beginning to shed light on some of the underlying central mechanisms. We present here the roles of key brain neurotransmitter/neuromodulator systems in food choice, value, and intake at various stages after RYGB. In doing so, we elaborate on how known signals emanating from the reorganized gut, including peptide hormones and microbiota products, impinge on newly mapped homeostatic and hedonic brain feeding circuits. Continued progress in the rapidly evolving field of metabolic surgery will inform the design of more effective weight-loss compounds.



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