The secondary bile acid isoursodeoxycholate correlates with post-prandial lipemia, inflammation, and appetite and changes post-bariatric surgery

Louca, Panayiotis; Meijnikman, Abraham S.; Nogal, Ana; Asnicar, Francesco; Attaye, Ilias; Vijay, Amrita; Kouraki, Afroditi; Visconti, Alessia; Wong, Kari; Berry, Sarah E.; Leeming, Emily R.; Mompeo, Olatz; Tettamanzi, Francesca; Baleanu, Andrei Florin; Falchi, Mario; Hadjigeorgiou, George; Wolf, Jonathan; Acherman, Yair I.Z.; Van de Laar, Arnold W.; Gerdes, Victor E.A.; Michelotti, Gregory A.; Franks, Paul W.; Segata, Nicola; Mangino, Massimo; Spector, Tim D.; Bulsiewicz, William J.; Nieuwdorp, Max; Valdes, Ana M.; Menni, Cristina

Abstract

Primary and secondary bile acids (BAs) influence metabolism and inflammation, and the gut microbiome modulates levels of BAs. We systematically explore the host genetic, gut microbial, and habitual dietary contribution to a panel of 19 serum and 15 stool BAs in two population-based cohorts (TwinsUK, n = 2,382; ZOE PREDICT-1, n = 327) and assess changes post-bariatric surgery and after nutritional interventions. We report that BAs have a moderately heritable genetic component, and the gut microbiome accurately predicts their levels in serum and stool. The secondary BA isoursodeoxycholate (isoUDCA) can be explained mostly by gut microbes (area under the receiver operating characteristic curve [AUC] = ∼80%) and associates with post-prandial lipemia and inflammation (GlycA). Furthermore, circulating isoUDCA decreases significantly 1 year after bariatric surgery (β = −0.72, p = 1 × 10−5) and in response to fiber supplementation (β = −0.37, p < 0.03) but not omega-3 supplementation. In healthy individuals, isoUDCA fasting levels correlate with pre-meal appetite (p < 1 × 10−4). Our findings indicate an important role for isoUDCA in lipid metabolism, appetite, and, potentially, cardiometabolic risk.

Citation

Louca, P., Meijnikman, A. S., Nogal, A., Asnicar, F., Attaye, I., Vijay, A., …Menni, C. (2023). The secondary bile acid isoursodeoxycholate correlates with post-prandial lipemia, inflammation, and appetite and changes post-bariatric surgery. Cell Reports Medicine, 4(4), Article 100993. https://doi.org/10.1016/j.xcrm.2023.100993

• Journal Article Type: Article
• Acceptance Date: Mar 14, 2023
• Online Publication Date: Apr 5, 2023
• Publication Date: Apr 18, 2023
• Deposit Date: Jun 21, 2023
• Publicly Available Date: Jun 23, 2023
• Journal: Cell Reports Medicine
• Print ISSN: 2666-3791
• Electronic ISSN: 2666-3791
• Publisher: Cell Press
• Peer Reviewed: Peer Reviewed
• Volume: 4
• Issue: 4
• Article Number: 100993
• DOI: https://doi.org/10.1016/j.xcrm.2023.100993
• Keywords: Bile acids; post-prandial; triglycerides; bariatric surgery; liver function
• Public URL: https://nottingham-repository.worktribe.com/output/19462019
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S266637912300099X