Evidence map›Paper›PMID 40423925›Full record

ArticleObesity surgery2025

Changes in Inflammatory Markers Following Bariatric Surgery and the Impact of the Surgical Procedure: A 12-Month Longitudinal Study.

Rasmus Tanderup Jensen, Anne Cathrine Baun Thuesen, Yun Huang, Sara Elizabeth Stinson, Helene Bæk Juel, Sten Madsbad, Flemming Bendtsen, Torben Hansen, Julie Steen Pedersen

Abstract read
In one paragraph

Article in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
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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

9 authors.

Rasmus Tanderup JensenNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. rasmus.tanderup@sund.ku.dk.
Anne Cathrine Baun ThuesenNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Yun HuangNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Sara Elizabeth StinsonNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Helene Bæk JuelNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Sten MadsbadDepartment of Endocrinology, Copenhagen University Hospital Hvidovre, Copenhagen, Denmark.
Flemming BendtsenGastrounit, Medical Section, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark, Dept of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Torben HansenNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Julie Steen PedersenGastrounit, Medical Section, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark, Dept of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.

Funding

BRIDGE - Translational Excellence Programme at the Faculty of Health and Medical Sciences, University of Copenhagen, funded by the Novo Nordisk Foundation NNF20SA0064340Novo Nordisk Fonden, Denmark NNF15OC0016692Novo Nordisk Fonden, Denmark NNF17OC0028328Novo Nordisk Foundation Copenhagen Bioscience PhD NNF18CC0033668The European Union's Horizon 2020 Research and Innovation Program 668031
6 · The paper itself

Abstract

backgroundObesity is associated with an increased risk of cardiometabolic morbidity and mortality, which may be attributable to systemic low-grade inflammation. The impact of bariatric surgery-induced weight loss on low-grade inflammation has not yet thoroughly been described. We investigated the effect of Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) on the plasma levels of cytokines, chemokines, and cytokine receptors prior to surgery (baseline), and then three and 12 months after surgery.

methodsWe recruited 68 individuals (41 females, 27 males) with severe obesity (42.84 ± 6.28) who had been referred for bariatric surgery (RYGB: n = 29, SG: n = 39). Blood samples were collected after an overnight fast at baseline (immediately before surgery), 3 and 12 months after surgery. Eleven patients without obesity or cardiometabolic disease served as controls at baseline. Ninety-two plasma proteins were measured using an Olink Target 96 inflammation panel.

resultsWe used a linear mixed model to test differences in inflammatory markers at baseline, across time points and between groups. At baseline, 36 cytokines were found to be differentially expressed between the bariatric surgery patients and controls. Of these cytokines, 13 had significantly decreased three months after bariatric surgery and 27 had significantly decreased 12 months after surgery, compared with baseline. Two cytokines (CCL25 and CCL28) increased markedly after 12 months. Only one cytokine (CCL25) was significantly different between the procedures performed, where it increased in the RYGB group 12 months after surgery.

conclusionIndividuals with severe obesity have increased expression of plasma inflammatory cytokines compared to controls, but low-grade inflammation improves following bariatric surgery, regardless of whether it is RYGB or SG.

Indexed as

CytokinesGastrectomyGastric BypassInflammationObesity, MorbidAdultBariatric SurgeryBiomarkersFemaleHumansLongitudinal StudiesMaleMiddle AgedTreatment OutcomeWeight LossBiomarkersCytokines

Identifiers

PMID40423925
PMCPMC12271296

What Socratic holds

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LicenceCC BY
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Registered trials

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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 Socratic graph.