Evidence map›Paper›PMID 25930081›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2015

Colonic mucosal gene expression and genotype in irritable bowel syndrome patients with normal or elevated fecal bile acid excretion.

Michael Camilleri, Paula Carlson, Andres Acosta, Irene Busciglio

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Effects of Colesevelam on Bowel Symptoms, Biomarkers, and Colonic Mucosal Gene Expression in Patients With Bile Acid Diarrhea in a Randomized Trial.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2020
    Trial
  2. Trial
  3. Gut Goo: Physiology, Diet, and Therapy of Intestinal Mucus and Biofilms in Gastrointestinal Health and Disease.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025
    Review
  4. Article
  5. Article
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  9. Article
  10. Article
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  12. Review
  13. Article
  14. Review
  15. Blunted Evoked Prouroguanylin Endocrine Secretion in Chronic Constipation.Clinical and translational gastroenterology · 2019
    Article
  16. Article
  17. Do nerves make bowels irritable?American journal of physiology. Gastrointestinal and liver physiology · 2018
    Article
  18. Article
  19. Article
  20. Review
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

4 authors.

Michael CamilleriClinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.), Mayo Clinic, Rochester, Minnesota camilleri.michael@mayo.edu.
Paula CarlsonClinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.), Mayo Clinic, Rochester, Minnesota.
Andres AcostaClinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.), Mayo Clinic, Rochester, Minnesota.
Irene BusciglioClinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.), Mayo Clinic, Rochester, Minnesota.

Funding

Bile Acids, Genetic Control and Colonic Function in Irritable Bowel SyndromeR01DK092179 · NIDDK · MAYO CLINIC ROCHESTER · PI CAMILLERI, MICHAEL L. · 2011 to 2015
$1.8M
NIDDK NIH HHS R01 DK092179NIDDK NIH HHS R01-DK92179
6 · The paper itself

Abstract

The mucosal gene expression in rectosigmoid mucosa (RSM) in irritable bowel syndrome with diarrhea (IBS-D) is unknown. Our objectives were, first, to study mRNA expression [by RT(2) PCR of 19 genes pertaining to tight junctions, immune activation, intestinal ion transport and bile acid (BA) homeostasis] in RSM in IBS-D patients (n = 47) and healthy controls (n = 17) and study expression of a selected protein (PDZD3) in 10 IBS-D patients and 4 healthy controls; second, to assess RSM mRNA expression according to genotype and fecal BA excretion (high ≥ 2,337 μmol/48 h); and third, to determine whether genotype or mucosal mRNA expression is associated with colonic transit or BA parameters. Fold changes were corrected for false detection rate for 19 genes studied (P < 0.00263). In RSM in IBS-D patients compared with controls, mRNA expression of GUC2AB, PDZD3, and PR2Y4 was increased, whereas CLDN1 and FN1 were decreased. One immune-related gene was upregulated (C4BP4) and one downregulated (CCL20). There was increased expression of a selected ion transport protein (PDZD3) on immunohistochemistry and Western blot in IBS-D compared with controls (P = 0.02). There were no significant differences in mucosal mRNA in 20 IBS-D patients with high compared with 27 IBS-D patients with normal BA excretion. GPBAR1 (P < 0.05) was associated with colonic transit. We concluded that mucosal ion transport mRNA (for several genes and PDZD3 protein) is upregulated and barrier protein mRNA downregulated in IBS-D compared with healthy controls, independent of genotype. There are no differences in gene expression in IBS-D with high compared with normal fecal BA excretion.

Indexed as

Adaptor Proteins, Signal TransducingAdultBile Acids and SaltsCase-Control StudiesCell Adhesion MoleculesColonFecesFemaleGastrointestinal TransitGene Expression RegulationGenetic MarkersGenotypeHumansIntestinal MucosaIrritable Bowel SyndromeMaleAdaptor Proteins, Signal TransducingBile Acids and SaltsCell Adhesion MoleculesGenetic MarkersNeoplasm ProteinsPDZD2 protein, humanRNA, MessengerbarriercytokinesGUCA2Bimmuneion channelsneurotransmittersPDZD3secretion

Identifiers

PMID25930081
PMCPMC4491506

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.