Metabolic Effects of Bile Acids: Potential Role in Bariatric Surgery.

Flynn CR, Albaugh VL, Abumrad NN
Cell Mol Gastroenterol Hepatol. 2019 8 (2): 235-246

PMID: 31075353 · PMCID: PMC6664228 · DOI:10.1016/j.jcmgh.2019.04.014

Bariatric surgery is the most effective and durable treatment for morbid obesity, with an unexplained yet beneficial side effect of restoring insulin sensitivity and improving glycemia, often before weight loss is observed. Among the many contributing mechanisms often cited, the altered handling of intestinal bile acids is of considerable therapeutic interest. Here, we review a growing body of literature examining the metabolic effects of bile acids ranging from their physical roles in dietary fat handling within the intestine to their functions as endocrine and paracrine hormones in potentiating responses to bariatric surgery. The roles of 2 important bile acid receptors, Takeda G-protein coupled receptor (also known as G-protein coupled bile acid receptor) and farnesoid X receptor, are highlighted as is downstream signaling through glucagon-like polypeptide 1 and its cognate receptor. Additional improvements in other phenotypes and potential contributions of commensal gut bacteria, such as Akkermansia muciniphila, which are manifest after Roux-en-Y gastric bypass and other emulations, such as gallbladder bile diversion to the ileum, are also discussed.

Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.

MeSH Terms (10)

Akkermansia Animals Bariatric Surgery Bile Acids and Salts Humans Insulin Resistance Obesity, Morbid Receptors, Cytoplasmic and Nuclear Signal Transduction Verrucomicrobia

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