Evidence map›Paper›PMID 27110309›Full record

ArticlePrzeglad gastroenterologiczny2016

The importance of G2677T/A and C3435T polymorphisms of the MDR1 gene in the aetiology of colorectal cancer.

Grzegorz Stańko, Marek Kamiński, Anna Bogacz, Agnieszka Seremak-Mrozikiewicz, Bogusław Kosiński, Joanna Bartkowiak-Wieczorek, Daniel Kotrych, Bogusław Czerny

Open access · goldAbstract read
In one paragraph

Article in Przeglad gastroenterologiczny, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 32% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

8 authors at 3 institutions in 1 country.

Grzegorz StańkoDepartment of General and Gastroenterological Surgery, Pomeranian Medical University, Szczecin, Poland.
Marek KamińskiDepartment of General and Gastroenterological Surgery, Pomeranian Medical University, Szczecin, Poland.
Anna BogaczLaboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, Poznan University of Medical Sciences, Poznan, Poland; Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Poznan, Poland.
Agnieszka Seremak-MrozikiewiczDepartment of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Poznan, Poland; Division of Perinatology and Women's Diseases, Poznan University of Medical Sciences, Poznan, Poland.
Bogusław KosińskiWest Pomeranian Centre of Oncology, Division of Surgical Oncology, Szczecin, Poland.
Joanna Bartkowiak-WieczorekLaboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, Poznan University of Medical Sciences, Poznan, Poland; Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Poznan, Poland.
Daniel KotrychDepartment of Orthopaedics and Traumatology, Pomeranian Medical University, Szczecin, Poland.
Bogusław CzernyDepartment of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University, Szczecin, Poland; Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Poznan, Poland.
Pomeranian Medical University · PLInstitute of Natural Fibres and Medicinal Plants · PLPoznan University of Medical Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionColorectal cancer (CRC) is the most common cancer among patients, and its aetiology is still not precisely known. It is believed that 15-30% of colorectal cancers are genetically determined. P-glycoprotein (P-gp) encoded by the MDR1 gene in normal conditions plays an important role in the action of colon epithelial cells. However, the MDR1 polymorphism influences the P-gp expression and can weaken its effect against xenobiotics (procarcinogens) and increase the frequency of CRC.

aimTo evaluate the correlation between the MDR1 C3435T and G2677T/A polymorphisms and the risk of colorectal cancer. MATERIAL AND

methodsThe study group with colorectal cancer included 47 women and 60 men while the control group consisted of 110 healthy patients. The diagnosis in patients suffering from CRC was confirmed by histopathological report. Genetic analysis was performed using PCR-RFLP method.

resultsWe showed only a correlation between the frequency of CT and TT genotypes of C3435T polymorphism and the risk of colorectal cancer in younger age. There was no correlation between the C3435T and G2677T/A polymorphisms of the MDR1 gene and other clinical parameters.

conclusionsOur findings suggest that T allele carriers of C3435T polymorphism have an increased risk of CRC. However, further studies are needed on a much larger number of patients and genes associated with metabolism and transport of xenobiotics including procarcinogens.

Indexed as

colorectal cancerP-glycoproteinpolymorphismxenobiotics

Identifiers

PMID27110309
PMCPMC4814531
OpenAlexW2327557183

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.