Evidence map›Paper›PMID 15793883›Full record

ArticleWorld journal of gastroenterology2005

Cytochrome p450 2E1 polymorphisms and the risk of gastric cardia cancer.

Lin Cai, Zong-Li Zheng, Zuo-Feng Zhang

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.9field-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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. CYP2E1 and NQO1 genotypes and bladder cancer risk in a Lebanese population.International journal of molecular epidemiology and genetics · 2013
    Article
  7. Article
  8. Article
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  11. Helicobacter pylori infection, but not genetic polymorphism of CYP2E1, is highly prevalent in gastric cancer patients younger than 40 years.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2007
    Article
  12. Cellular and molecular aspects of gastric cancer.World journal of gastroenterology · 2006
    Review
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

3 authors at 1 institution in 2 countries.

Lin CaiDepartment of Epidemiology, UCLA School of Public Health, 71-225 CHS, Box 951772, 10833 Le Conte Avenue, Los Angeles, CA 90095-1772, USA. lcaiin@ucla.edu
Zong-Li Zheng
Zuo-Feng Zhang
UCLA Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimGenetic polymorphisms of drug-metabolizing enzymes have recently been shown to affect susceptibility to chemical carcinogenesis. Cytochrome P450 2E1 (CYP2E1) enzyme catalyzes the metabolism of many procarcinogens, such as N-nitrosamines and related compounds. The gene coding for this enzyme is polymorphic and thus may play a role in gastric cardia cancer (GCC) etiology. In this hospital-based case-control study, we evaluate the relationship between genetic polymorphisms of CYP2E1 and the risk of GCC.

methodsThe study subjects comprised 159 histologically confirmed GCC cases identified via hospital cancer registry and surgical records at five hospitals in Fuzhou, Fujian Province, China, between April and November 2001. Controls were 192 patients admitted to the same hospitals for nonmalignant conditions. The genotypes of CYP2E1 were detected by a PCR-based RFLP assay. The odds ratios were estimated by logistic regression analyses and were adjusted for potential confounding factors.

resultsThe distribution of three genotypes of CYP2E1 in GCC cases and controls was significantly different (chi(2) = 16.04, P<0.01). The frequency of the CYP2E1 (c1/c1) genotype in GCC cases and controls was 60.4% and 40.1%, respectively. The CYP2E1 (c1/c1) genotype was associated with an increased risk for GCC (the adjusted (OR) was 2.37, 95% confidence interval (CI): 1.52-3.70). Subjects who carried the CYP2E1 (c1/c1) genotype and were habitual smokers were at a significantly higher risk of developing GCC (OR = 4.68, 95%CI: 2.19-10.04) compared with those who had the CYP2E1 (c1/c2 or c2/c2) genotype and did not smoke.

conclusionThese results suggest that the CYP2E1 genotype may influence individual susceptibility to development of GCC, and that the risk increases significantly in smokers.

Indexed as

Polymorphism, GeneticAgedCardiaCytochrome P-450 CYP2E1FemaleGenetic Predisposition to DiseaseGenotypeHumansMaleMiddle AgedRisk FactorsSmokingStomach NeoplasmsCytochrome P-450 CYP2E1

Identifiers

PMID15793883
PMCPMC4305893
OpenAlexW2029790313

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.