Evidence map›Paper›PMID 33924402›Full record

Observational studyNutrients2021

Effect of Obesity on the Expression of Nutrient Receptors and Satiety Hormones in the Human Colon.

Lucas Baumard, Zsa Zsa R M Weerts, Ad A M Masclee, Daniel Keszthelyi, Adina T Michael-Titus, Madusha Peiris

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  6. Article
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  10. Review
  11. Stearic acid induces CCK and GLP-1 upregulationFrontiers in veterinary science · 2022
    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

6 authors at 2 institutions in 2 countries.

Lucas BaumardCentre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London E1 2AT, UK.
Zsa Zsa R M WeertsDivision of Gastroenterology and Hepatology, Department of Internal Medicine, School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, 6229 Maastricht, The Netherlands.ORCID 0000-0001-7522-9916
Ad A M MascleeDivision of Gastroenterology and Hepatology, Department of Internal Medicine, School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, 6229 Maastricht, The Netherlands.
Daniel KeszthelyiDivision of Gastroenterology and Hepatology, Department of Internal Medicine, School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, 6229 Maastricht, The Netherlands.ORCID 0000-0001-9856-9980
Adina T Michael-TitusCentre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London E1 2AT, UK.
Madusha PeirisCentre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London E1 2AT, UK.ORCID 0000-0003-4429-5931
Maastricht University Medical Centre · NLQueen Mary University of London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/R012490 & BBS/E/F/000PR10355Biotechnology and Biological Sciences Research Council BBS/E/F/000PR10355Bowel and Cancer Research N/A
6 · The paper itself

Abstract

backgroundReceptors located on enteroendocrine cells (EECs) of the colon can detect nutrients in the lumen. These receptors regulate appetite through a variety of mechanisms, including hormonal and neuronal signals. We assessed the effect of obesity on the expression of these G-protein coupled receptors (GPCRs) and hormones at both mRNA and protein level.

methodsqPCR and immunohistochemistry were used to examine colonic tissue from cohorts of patients from the Netherlands (proximal and sigmoid tissue) and the United Kingdom (tissue from across the colon) and patients were grouped by body mass index (BMI) value (BMI < 25 and BMI ≥ 25).

resultsThe mRNA expression of the hormones/signaling molecules serotonin, glucagon, peptide YY (PYY), CCK and somatostatin were not significantly different between BMI groups. GPR40 mRNA expression was significantly increased in sigmoid colon samples in the BMI ≥ 25 group, but not proximal colon. GPR41, GPR109a, GPR43, GPR120, GPRC6A, and CaSR mRNA expression were unaltered between low and high BMI. At the protein level, serotonin and PYY containing cell numbers were similar in high and low BMI groups. Enterochromaffin cells (EC) showed high degree of co-expression with amino acid sensing receptor, CaSR while co-expression with PYY containing L-cells was limited, regardless of BMI.

conclusionsWhile expression of medium/long chain fatty acid receptor GPR40 was increased in the sigmoid colon of the high BMI group, expression of other nutrient sensing GPCRs, and expression profiles of EECs involved in peripheral mechanisms of appetite regulation were unchanged. Collectively, these data suggest that in human colonic tissue, EEC and nutrient-sensing receptor expression profiles are not affected despite changes to BMI.

Indexed as

AdultAgedAged, 80 and overAnimalsBiopsyBody Mass IndexCase-Control StudiesColonEnteroendocrine CellsFemaleGene Expression ProfilingHealthy VolunteersHumansIntestinal MucosaMaleMiddle AgedNutrientsReceptors, G-Protein-Coupledappetite regulationenteroendocrine cells (EECs)G-protein coupled receptors (GPCRs)nutrient sensingobesity

Identifiers

PMID33924402
PMCPMC8070384
OpenAlexW3152878585

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.