Evidence map›Paper›PMID 25166592›Full record

ArticlePloS one2014

Intestinal PTGS2 mRNA levels, PTGS2 gene polymorphisms, and colorectal carcinogenesis.

Lotte K Vogel, Mona Sæbø, Helle Høyer, Tine Iskov Kopp, Ulla Vogel, Sine Godiksen, Franz B Frenzel, Julian Hamfjord, Inger Marie Bowitz-Lothe, Egil Johnson and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 6 pooled it
3.2field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 6 syntheses or guidelines pooled it, 49 citations in OpenAlex.

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  14. Hippo pathway in intestinal diseases: focusing on ferroptosis.Frontiers in cell and developmental biology · 2023
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  15. Frontiers in cell and developmental biology · 2023
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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

12 authors at 7 institutions in 2 countries.

Lotte K VogelDepartment of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.
Mona SæbøDepartment of Environmental and Health Studies, Telemark University College, Telemark, Norway.
Helle HøyerDepartment of Environmental and Health Studies, Telemark University College, Telemark, Norway; Department of Laboratory Medicine, Telemark Hospital, Skien, Norway.
Tine Iskov KoppNational Food Institute, Technical University of Denmark, Søborg, Denmark.
Ulla VogelNational Research Centre for the Working Environment, Copenhagen, Denmark.
Sine GodiksenDepartment of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.
Franz B FrenzelDepartment of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark.
Julian HamfjordDepartment of Genetics, Oslo University Hospital, Oslo, Norway.
Inger Marie Bowitz-LotheDepartment of Genetics, Oslo University Hospital, Oslo, Norway; Department of Pathology, Oslo University Hospital, Oslo, Norway.
Egil JohnsonDepartment of Gastrointestinal and Pediatric Surgery, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Elin H KureDepartment of Environmental and Health Studies, Telemark University College, Telemark, Norway; Department of Genetics, Oslo University Hospital, Oslo, Norway.
Vibeke AndersenOrgan Center, Hospital of Southern Jutland, Aabenraa, Denmark; Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark; Medical Department, Regional Hospital Viborg, Viborg, Denmark.
Telemark Research Institute · NOUniversity of Copenhagen · DKOslo University Hospital · NONational Research Centre for the Working Environment · DKSygehus Sønderjylland · DKTechnical University of Denmark · DKUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsInflammation is a major risk factor for development of colorectal cancer (CRC). Prostaglandin synthase cyclooxygenase-2 (COX-2) encoded by the PTGS2 gene is the rate limiting enzyme in prostaglandin synthesis and therefore plays a distinct role as regulator of inflammation.

methodsPTGS2 mRNA levels were determined in intestinal tissues from 85 intestinal adenoma cases, 115 CRC cases, and 17 healthy controls. The functional PTGS2 polymorphisms A-1195G (rs689466), G-765C (rs20417), T8473C (rs5275) were assessed in 200 CRC cases, 991 adenoma cases and 399 controls from the Norwegian KAM cohort.

resultsPTGS2 mRNA levels were higher in mild/moderate adenoma tissue compared to morphologically normal tissue from the same individual (P<0.0001) and (P<0.035) and compared to mucosa from healthy individuals (P<0.0039) and (P<0.0027), respectively. In CRC patients, PTGS2 mRNA levels were 8-9 times higher both in morphologically normal tissue and in cancer tissue, compared to healthy individuals (P<0.0001). PTGS2 A-1195G variant allele carriers were at reduced risk of CRC (odds ratio (OR) = 0.52, 95% confidence interval (95% CI): 0.28-0.99, P = 0.047). Homozygous carriers of the haplotype encompassing the A-1195G and G-765C wild type alleles and the T8473C variant allele (PTGS2 AGC) were at increased risk of CRC as compared to homozygous carriers of the PTGS2 AGT (A-1195G, G-765C, T8473C) haplotype (OR = 5.37, 95% CI: 1.40-20.5, P = 0.014). No association between the investigated polymorphisms and PTGS2 mRNA levels could be detected.

conclusionHigh intestinal PTGS2 mRNA level is an early event in colorectal cancer development as it occurs already in mild/moderate dysplasia. PTGS2 polymorphisms that have been associated with altered PTGS2 mRNA levels/COX-2 activity in some studies, although not the present study, were associated with colorectal cancer risk. Thus, both PTGS2 polymorphisms and PTGS2 mRNA levels may provide information regarding CRC risk.

Indexed as

Polymorphism, GeneticAdenocarcinomaAdenomaAgedAllelesCarcinogenesisCase-Control StudiesColorectal NeoplasmsCyclooxygenase 2FemaleGenotypeHumansIntestinal MucosaIntestinesMaleMiddle AgedCyclooxygenase 2PTGS2 protein, humanRNA, Messenger

Identifiers

PMID25166592
PMCPMC4148233
OpenAlexW2019121108

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.