Evidence map›Paper›PMID 17884651›Full record

ArticleMolecular genetics and metabolism2007

Spontaneous development of intestinal and colonic atrophy and inflammation in the carnitine-deficient jvs (OCTN2(-/-)) mice.

Prem S Shekhawat, Sonne R Srinivas, Dietrich Matern, Michael J Bennett, Richard Boriack, Varghese George, Hongyan Xu, Puttur D Prasad, Penny Roon, Vadivel Ganapathy

Abstract read
In one paragraph

Article in Molecular genetics and metabolism, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 8% 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 77 citations in OpenAlex.

  1. Role of Mitochondria in Inflammatory Bowel Diseases: A Systematic Review.International journal of molecular sciences · 2023
    Pooled it
  2. Pooled it
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  16. Mitochondrial function - gatekeeper of intestinal epithelial cell homeostasis.Nature reviews. Gastroenterology & hepatology · 2018
    Review
  17. Review
  18. Review
  19. Reduced mitochondrial activity in colonocytes facilitates AMPKα2-dependent inflammation.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Article
  20. Article
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

10 authors at 4 institutions in 1 country.

Prem S ShekhawatDepartment of Pediatrics, Medical College of Georgia, Augusta, GA 30912, USA. pshekhawat@mail.mcg.edu
Sonne R Srinivas
Dietrich Matern
Michael J Bennett
Richard Boriack
Varghese George
Hongyan Xu
Puttur D Prasad
Penny Roon
Vadivel Ganapathy
Augusta University · USChildren's Hospital of Philadelphia · USChildren's Medical Center · USMayo Clinic · US

Funding

PLACENTAL CARNITINE: ROLE IN FETAL DEVELOPMENTK08HD048867 · NICHD · MEDICAL COLLEGE OF GEORGIA (MCG) · PI SHEKHAWAT, PREM S · 2005 to 2008
$434k
NICHD NIH HHS HD048867NICHD NIH HHS K08 HD048867
6 · The paper itself

Abstract

Carnitine is essential for transport of long-chain fatty acids into mitochondria for their subsequent beta-oxidation, but its role in the gastrointestinal tract has not been well described. Recently several genetic epidemiologic studies have shown strong association between mutations in carnitine transporter genes OCTN1 and OCTN2 and a propensity to develop Crohn's disease. This study aims to investigate role of carnitine and beta-oxidation in the GI tract. We have studied the gastrointestinal tract effects of carnitine deficiency in a mouse model with loss-of-function mutation in the OCTN2 carnitine transporter. juvenile visceral steatosis (OCTN2(-/-)) mouse spontaneously develops intestinal villous atrophy, breakdown and inflammation with intense lymphocytic and macrophage infiltration, leading to ulcer formation and gut perforation. There is increased apoptosis of jvs (OCTN2(-/-)) gut epithelial cells. We observed an up-regulation of heat shock factor-1 (HSF-1) and several heat shock proteins (HSPs) which are known to regulate OCTN2 gene expression. Intestinal and colonic epithelial cells in wild type mice showed high expression and activity of the enzymes of beta-oxidation pathway. These studies provide evidence of an obligatory role for carnitine in the maintenance of normal intestinal and colonic structure and morphology. Fatty acid oxidation, a metabolic pathway regulated by carnitine-dependent entry of long-chain fatty acids into mitochondrial matrix, is likely essential for normal gut function. Our studies suggest that carnitine supplementation, as a means of boosting fatty acid oxidation, may be therapeutically beneficial in patients with inflammation of the intestinal tract.

Indexed as

Organic Cation Transport ProteinsAmino Acid Transport SystemsAnimalsAtrophyCarnitineColonCrohn DiseaseDisease Models, AnimalDNA-Binding ProteinsFatty AcidsHeat Shock Transcription FactorsInflammationIntestinesMembrane Transport ProteinsMiceMice, Mutant StrainsAmino Acid Transport SystemsCarnitineDNA-Binding ProteinsFatty AcidsHeat Shock Transcription FactorsHsf1 protein, mouseMembrane Transport ProteinsOrganic Cation Transport ProteinsTranscription Factors

Identifiers

PMID17884651
PMCPMC2170531
OpenAlexW2044726211

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.