Evidence map›Paper›PMID 29548899›Full record

ArticleEBioMedicine2018

Inflammatory Cytokine Profiles in Visceral and Subcutaneous Adipose Tissues of Obese Patients Undergoing Bariatric Surgery Reveal Lack of Correlation With Obesity or Diabetes.

Volatiana Rakotoarivelo, Gregory Lacraz, Marian Mayhue, Christine Brown, Diane Rottembourg, Julie Fradette, Subburaj Ilangumaran, Alfredo Menendez, Marie-France Langlois, Sheela Ramanathan

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Impact of bariatric surgery on gut microbiota in obese patients: A systematic review.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025
    Pooled it
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  20. Anti-Inflammatory Effect of Ethanolic Extract fromMolecules (Basel, Switzerland) · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Volatiana RakotoariveloDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
Gregory LacrazDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
Marian MayhueDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
Christine BrownCentre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada.
Diane RottembourgDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Department of Medicine, Division of Endocrinology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Centre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada.
Julie FradetteDepartment of Surgery, Université laval, CRCHU de Québec-Université Laval, Québec, QC, Canada.
Subburaj IlangumaranDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Centre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada.
Alfredo MenendezDepartment of Microbiology and Infectious diseases, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Centre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada.
Marie-France LangloisDepartment of Medicine, Division of Endocrinology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Centre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada.
Sheela RamanathanDepartment of Pediatrics, Division of Immunology, Faculty of Medicine and Heath Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Centre de Recherche, Centre Hospitalier Universitaire de Sherbrooke (CRCHUS), Sherbrooke, QC, Canada. Electronic address: sheela.ramanathan@usherbrooke.ca.
Université de Sherbrooke · CACentre Hospitalier Universitaire de Sherbrooke · CAUniversité Laval · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Population studies have linked insulin resistance to systemic low-grade chronic inflammation and have reported elevated levels of inflammatory cytokines such as TNFα, IL-1β and IL-6, individually or in certain combinations, in adipose tissues or in the serum. We undertook this comprehensive study to simultaneously evaluate the expression of several pro-inflammatory and anti-inflammatory cytokines in serum and in the visceral and subcutaneous adipose tissues from obese patients undergoing bariatric surgery. We observed that several inflammatory cytokines implicated in obesity-associated inflammation showed no significant difference in protein or gene expression between obese patients with or without diabetes and control groups. IL1B gene expression was significantly elevated in the visceral adipose tissues of obese patients, but did not correlate with their diabetes status. Despite the significant increase in IL1B expression in the obese group, a significant proportion of obese patients did not express TNFA, IL1B or IL6 in visceral adipose tissues. Certain inflammatory cytokines showed correlation with the chemokine CCL2 and VEGF-A in visceral adipose tissues. Our findings suggest that the inflammatory cytokine profile in metabolic syndrome is more complex than what is currently perceived and that chronic inflammation in obese patients likely results from incremental contribution from different cytokines and possibly other inflammatory mediators from within and outside the adipose tissues. It is possible that this obesity associated chronic inflammation is not predicted by a single mediator, but rather includes a large spectrum of possible profiles.

Indexed as

Bariatric SurgeryAdultBecaplerminCytokinesDiabetes MellitusFemaleGene Expression RegulationHumansInflammationInsulin ResistanceIntra-Abdominal FatMaleMiddle AgedObesityProto-Oncogene Proteins c-sisSubcutaneous FatBecaplerminCytokinesProto-Oncogene Proteins c-sisVascular Endothelial Growth Factor ABariatric surgeryChronic inflammationCytokine expressionSubcutaneous adipose tissuesVisceral adipose tissue

Identifiers

PMID29548899
PMCPMC5952229
OpenAlexW2790400225

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.