Evidence map›Paper›PMID 25628848›Full record

ArticleMiddle East journal of digestive diseases2015

Direct Sequencing of Cyclooxygenase-2 (COX-2) Revealed an Intronic Variant rs201231411 in Iranian Patients with Pancreatic Cancer.

Ashraf Mohamadkhani, Mohammad Reza Akbari, Reza Ghanbari, Elnaz Naderi, Parisa Rezanejad-Asl, Akram Pourshams

Open access · greenAbstract read
In one paragraph

Article in Middle East journal of digestive diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Is Cyclooxygenase 2 Effective in Breast Cancer Diagnosis?Asian Pacific journal of cancer prevention : APJCP · 2025
    Article
  2. Dehydroepiandrosterone modulates oxidative DNA damage in pancreatic cancer: A case-control study.JGH open : an open access journal of gastroenterology and hepatology · 2021
    Article
  3. Article
  4. Pancreatic Cancer is Associated with Peripheral Leukocyte Oxidative DNA DamageAsian Pacific journal of cancer prevention : APJCP · 2017
    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

6 authors at 3 institutions in 3 countries.

Ashraf Mohamadkhani1. Liver and Pancreatobiliary Diseases Research Institute, Digestive Diseases.
Mohammad Reza Akbari2. Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Reza Ghanbari1. Liver and Pancreatobiliary Diseases Research Institute, Digestive Diseases.
Elnaz Naderi1. Liver and Pancreatobiliary Diseases Research Institute, Digestive Diseases.
Parisa Rezanejad-Asl3. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
Akram Pourshams1. Liver and Pancreatobiliary Diseases Research Institute, Digestive Diseases.
Center for Digestive and Liver Diseases · USPublic Health Ontario · CATehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND There are hoarding documents for the biological importance of cyclooxygenase-2 (COX-2) in pancreatic carcinogenesis. We aimed to thoroughly investigate the DNA sequence variations of whole COX-2 exons in a large case-control study of pancreatic cancer by direct sequencing. METHODS The entire exonic regions of COX-2 including 10 exons were sequenced in the germline DNA of 96 patients with pancreatic cancer. Selected variants within exons six to seven (E6E7) amplicon from the test panel were genotyped in 96 controls. RESULTS The COX-2 gene was demonstrated to be genetically conserved. Four missense mutations were found in three cases. However the common variant c.724-10_724-7delATTT (rs201231411) that is located in intron 6, showed significant difference between cases and controls (21 [21.9%] vs 11 [%11.5], p=0.05). CONCLUSION This study determined that COX-2 has a conservative sequence, which is required for its enzymatic activity and supports the important role of this enzyme's expression in pancreatic cancer rather than any changes in its activity. The effect of intronic variant rs201231411 on COX-2 expression could be analyzed in future studies.

Indexed as

Cyclooxygenase-2 (COX-2)Genome sequencingPancreatic cancer

Identifiers

PMID25628848
PMCPMC4293795
OpenAlexW2108854868

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.