Evidence map›Paper›PMID 31216062›Full record

Observational studyThe British journal of surgery2019

Bile acid changes after metabolic surgery are linked to improvement in insulin sensitivity.

S Ahlin, C Cefalo, I Bondia-Pons, E Capristo, L Marini, A Gastaldelli, G Mingrone, J J Nolan

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in The British journal of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Metabolomic signatures after bariatric surgery - a systematic review.Reviews in endocrine & metabolic disorders · 2022
    Pooled it
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  15. Effect of laparoscopic RouxZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2021
    Article
  16. Review
  17. Recent advances in the mechanisms underlying the beneficial effects of bariatric and metabolic surgery.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2021
    Review
  18. Observational
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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

8 authors at 3 institutions in 5 countries.

S AhlinDepartment of Molecular and Clinical Medicine, Institute of Medicine, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.ORCID 0000-0003-0619-2683
C CefaloFondazione Policlinico Universitario A. Gemelli Instituto di Ricovero e Cura a Carattere Scientifico and Università Cattolica del Sacro Cuore, Rome, Italy.
I Bondia-PonsSteno Diabetes Centre, Gentofte, Denmark.
E CapristoFondazione Policlinico Universitario A. Gemelli Instituto di Ricovero e Cura a Carattere Scientifico and Università Cattolica del Sacro Cuore, Rome, Italy.
L MariniFondazione Policlinico Universitario A. Gemelli Instituto di Ricovero e Cura a Carattere Scientifico and Università Cattolica del Sacro Cuore, Rome, Italy.
A GastaldelliCardiometabolic Risk Laboratory, Institute of Clinical Physiology, National Research Council, Pisa, Italy.
G MingroneFondazione Policlinico Universitario A. Gemelli Instituto di Ricovero e Cura a Carattere Scientifico and Università Cattolica del Sacro Cuore, Rome, Italy.
J J NolanSteno Diabetes Centre, Gentofte, Denmark.
Università Cattolica del Sacro Cuore · ITSteno Diabetes Centers · DKIstituto di Fisiologia Clinica · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMetabolic surgery is associated with a prompt improvement in insulin resistance, although the mechanism of action remains unknown. The literature on bile acid changes after metabolic surgery is conflicting, and insulin sensitivity is generally assessed by indirect methods. The aim of this study was to investigate the relationship between improvement in insulin sensitivity and concentration of circulating bile acids after biliopancreatic diversion (BPD) and Roux-en-Y gastric bypass (RYGB).

methodsThis was a prospective observational study of nine patients who underwent BPD and six who had RYGB. Inclusion criteria for participation were a BMI in excess of 40 kg/m

resultsA significant increase in all bile acids, as well as an amelioration of insulin sensitivity, was observed after metabolic surgery. An increase in conjugated secondary bile acids was significantly associated with an increase in insulin sensitivity. Only the increase in glycodeoxycholic acid was significantly associated with an increase in insulin sensitivity in analysis of individual conjugated secondary bile acids.

conclusionGlycodeoxycholic acid might drive the improved insulin sensitivity after metabolic surgery.

Indexed as

Biliopancreatic DiversionGastric BypassInsulin ResistanceAdultBile Acids and SaltsChromatography, High Pressure LiquidFemaleGas Chromatography-Mass SpectrometryGlucose Clamp TechniqueGlycodeoxycholic AcidHumansMaleMiddle AgedProspective StudiesBile Acids and SaltsGlycodeoxycholic Acid

Identifiers

PMID31216062
PMCPMC6771783
OpenAlexW2951554550

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.