Cited by 145Bariatric Surgery and OutcomesDiabetes, Cardiovascular Risks, and LipoproteinsMinimally Invasive Surgical Techniques

Conjugated bile acids associate with altered rates of glucose and lipid oxidation after Roux-en-Y gastric bypass

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Simonen, M., Dali-Youcef, N., Kaminska, D., Venesmaa, S., Käkelä, P., Pääkkönen, M., Hallikainen, M., Kolehmainen, M. +7 more·2012·Obesity Surgery

Abstract

Background Laparoscopic Roux-en-Y gastric bypass (RYGB) induces a more favorable metabolic profile than expected by weight loss alone. In this study, we investigated the effect of RYGB on serum bile acid levels and their relation to clinical outcomes.Methods We included 30 obese patients who underwent RYGB (BMI = 46.1 ± 5.9 kg/m(2)). Clinical measurements and laboratory determinations were performed before surgery and 1 year after surgery. Fasting serum bile acids were measured by an enzymatic method and individual bile acids were quantified by HLPC-tandem mass spectrometry. Indirect calorimetry was performed to measure the rates of energy expenditure and substrate oxidation.Results Fasting total serum bile acid levels increased twofold after RYGB (pre, 3.68 ± 2.03 vs. post, 7.06 ± 9.65 μmol/l, +92 %, p = 0.002). This increase in total bile acids was accompanied by a decrease in conjugated bile acids, which correlated with decreased glucose oxidation (r = 0.571, p = 0.002) and with increased lipid oxidation (r = -0.626, p = 0.0004). The change in taurine-conjugated bile acids correlated with altered DIO2 mRNA expression in adipose tissue (r = -0.498, p = 0.013) potentially linking bile acid conjugation to substrate oxidation through DIO2.Conclusions Fasting serum bile acid levels increase after RYGB. More specifically, changes in bile acid conjugation after RYGB associate with altered energy metabolism.

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Authors
Simonen, M., Dali-Youcef, N., Kaminska, D., Venesmaa, S., Käkelä, P., Pääkkönen, M., Hallikainen, M., Kolehmainen, M., Uusitupa, M., Moilanen, L., Laakso, M., Gylling, H., Patti, M. E., Auwerx, J., & Pihlajamäki, J.
Affiliations
  • University of Eastern Finland (FI)
  • Joslin Diabetes Center (US)
  • École Polytechnique Fédérale de Lausanne (CH)
Corresponding author
Pihlajamäki, Jussi
Venue
Obesity Surgery
Published
2012-05-26
Volume
22
Issue
9
Pages
1473-1480
ISSN
  • 0960-8923 (ISSN-L)
  • 1708-0428
OpenAlex
W2074184643
Cited by
145
References
32
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 4 · 2022: 9 · 2021: 9 · 2020: 13 · 2019: 15 · 2018: 6 · 2017: 25 · 2016: 13 · 2015: 23 · 2014: 12 · 2013: 12
FWCI
15.30
Type
journal article
Language
en
Open access
Locations
  • Obesity Surgery (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (P30DK036836)
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
Keywords
Roux-en-Y gastric bypass, bile acid conjugates
MeSH terms
Adipose Tissue, Bile Acids and Salts, Blood Glucose, Energy Metabolism, Female, Finland, Glucose, Humans, Liver, Longitudinal Studies, Male, Middle Aged, Obesity, Morbid, Gastric Bypass, Biomarkers, Body Mass Index, Treatment Outcome, Lipid Metabolism

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