Evidence map›Paper›PMID 27089995›Full record

ArticleInternational journal of obesity (2005)2016

Influence of Roux-en-Y gastric bypass on plasma bile acid profiles: a comparative study between rats, pigs and humans.

V Spinelli, F Lalloyer, G Baud, E Osto, M Kouach, M Daoudi, E Vallez, V Raverdy, J-F Goossens, A Descat and 7 more

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International journal of obesity (2005), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Effects of Weight Loss Interventions on Gut Microbiota-Derived Metabolites Linked to Cardiometabolic Health: A Systematic Review and Meta-Analysis.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
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  7. Frontiers in microbiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors at 6 institutions in 2 countries.

V SpinelliUniversité Lille, U1011, EGID, Lille, France.
F LalloyerUniversité Lille, U1011, EGID, Lille, France.
G BaudUniversité Lille, Inserm, UMR1190, EGID, Lille, France.
E OstoSwiss Federal Institute of Technology, ETH Zürich, Institute of Food Nutrition and Health, Zurich, Switzerland.
M KouachCentre Universitaire de Mesures et d'Analyses, Université Lille, Lille, France.
M DaoudiUniversité Lille, Inserm, UMR1190, EGID, Lille, France.
E VallezUniversité Lille, U1011, EGID, Lille, France.
V RaverdyCHU Lille, Lille, France.
J-F GoossensCentre Universitaire de Mesures et d'Analyses, Université Lille, Lille, France.
A DescatCentre Universitaire de Mesures et d'Analyses, Université Lille, Lille, France.
P DoytchevaDepartment of Cardiology, Center for Molecular Cardiology, University of Zurich and University Heart Center, University Hospital Zurich, Zurich, Switzerland.
T HubertUniversité Lille, Inserm, UMR1190, EGID, Lille, France.
T A LutzInstitute of Veterinary Physiology, Vetsuisse Faculty, Center of Integrative Human Physiology, University of Zurich, Zurich, Switzerland.
S LestavelUniversité Lille, U1011, EGID, Lille, France.
B StaelsUniversité Lille, U1011, EGID, Lille, France.
F PattouCHU Lille, Lille, France.
A TailleuxUniversité Lille, U1011, EGID, Lille, France.
Inserm · FRCentre Hospitalier Universitaire de Lille · FRInstitut Pasteur de Lille · FRUniversity of Zurich · CHETH Zurich · CHUniversité de Lille · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRoux-en-Y gastric bypass (RYGBP) is the most widely used bariatric surgery procedure, which induces profound metabolic and physiological effects, such as substantial improvements in obesity, type 2 diabetes and their comorbidities. Increasing evidence identifies bile acids (BAs) as signaling molecules that contribute to the metabolic improvement after RYGBP. However, how and to what extent BAs mediate the metabolic effects of RYGBP still remains unclear and requires mechanism of action studies using preclinical models. In this study, we compared plasma BA profiles before and after RYGBP in two animal models, rats and pigs, with humans to evaluate their translational potential.

methodsPlasma BAs were profiled in rats, pigs and humans by liquid chromatography coupled with tandem mass spectrometry before and after RYGBP.

resultsRYGBP increased baseline plasma total BA concentrations in humans and in the two animal models to a similar extent (∼3-fold increase), despite differences in presurgery BA levels and profiles between the models. However, qualitatively, RYGBP differently affected individual plasma BA species, with similar increases in some free species (cholic acid (CA), chenodeoxycholic acid (CDCA) and deoxycholic acid (DCA)), different increases in glyco-conjugated species depending on the model and globally no increase in tauro-conjugated species whatever the model.

conclusionsThe tested animal models share similar quantitative RYGBP-induced increases in peripheral blood BAs as humans, which render them useful for mechanistic studies. However, they also present qualitative differences in BA profiles, which may result in different signaling responses. Such differences need to be taken into account when translating results to humans.

Indexed as

Gastric BypassAdultAnimalsBile Acids and SaltsBlood GlucoseDisease Models, AnimalFemaleHumansMaleMiddle AgedObesityRatsSignal TransductionSwineSwine, MiniatureTreatment OutcomeBile Acids and SaltsBlood Glucose

Identifiers

PMID27089995
OpenAlexW2330772909

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.