Evidence map›Paper›PMID 23306084›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2013

Cannabinoid receptor 1 gene and irritable bowel syndrome: phenotype and quantitative traits.

Michael Camilleri, Gururaj J Kolar, Maria I Vazquez-Roque, Paula Carlson, Duane D Burton, Alan R Zinsmeister

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 66 citations in OpenAlex.

  1. Trial
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  4. Cannabinoids: Role in Neurological Diseases and Psychiatric Disorders.International journal of molecular sciences · 2024
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  14. The Endocannabinoid System of Animals.Animals : an open access journal from MDPI · 2019
    Review
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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 3 institutions in 1 country.

Michael CamilleriClinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, MN 55905, USA. camilleri.michael@mayo.edu
Gururaj J Kolar
Maria I Vazquez-Roque
Paula Carlson
Duane D Burton
Alan R Zinsmeister
Mayo Clinic in Florida · USMayo Clinic · USJacksonville College · US

Funding

Cannabinoid Mechanisms in Human Gastrointestinal Motor and Sensory FunctionsR01DK079866 · NIDDK · MAYO CLINIC ROCHESTER · PI CAMILLERI, MICHAEL L. · 2009 to 2010
$752k
NIDDK NIH HHS R01 DK079866NIDDK NIH HHS R01 DK79866
6 · The paper itself

Abstract

Genetic variations in metabolism of endocannabinoids and in CNR1 (gene for cannabinoid 1 receptor) are associated with symptom phenotype, colonic transit, and left colon motility in irritable bowel syndrome (IBS). Our aim was to evaluate associations between two variations in CNR1 genotype (rs806378 and [AAT]n triplets) with symptom phenotype, small bowel and colonic transit, and rectal sensations in 455 patients with IBS and 228 healthy controls. Small bowel and colonic transit were measured by scintigraphy, rectal sensation by isobaric distensions. Associations with genotype were assessed by χ(2) test (symptom phenotype) and ANCOVA (quantitative traits) based on a dominant genetic model. Significant association of CNR1 rs806378 (but not CNR1 [AAT]n) genotype and symptom phenotype was observed (χ(2) P = 0.028). There was significant association of CNR1 rs806378 (P = 0.014; CC vs. CT/TT) with colonic transit in IBS-diarrhea (IBS-D) group; the TT group had the fastest colonic transit at 24 and 48 h. There was significant overall association of CNR1 rs806378 with sensation rating of gas (P = 0.025), but not pain; the strongest associations for gas ratings were in IBS-D (P = 0.002) and IBS-alternating (P = 0.025) subgroups. For CNR1 (AAT)n, gene-by-phenotype interactions were observed for colonic transit at 24 (P = 0.06) and 48 h (P = 0.002) and gas (P = 0.046, highest for IBS-D, P = 0.034), but not pain sensation; the strongest association with transit was in controls, not in IBS. These data support the hypothesis that cannabinoid receptors may play a role in control of colonic transit and sensation in humans and deserve further study as potential mediators or therapeutic targets in lower functional gastrointestinal disorders.

Indexed as

AdultAlgorithmsDemographyFemaleGastrointestinal TransitGenotypeHumansIrritable Bowel SyndromeMaleManometryPhenotypePressureReceptor, Cannabinoid, CB1RectumTrinucleotide RepeatsReceptor, Cannabinoid, CB1

Identifiers

PMID23306084
PMCPMC3602676
OpenAlexW2146717287

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.