Evidence map›Paper›PMID 24391993›Full record

SynthesisPloS one2013

MspI and Ile462Val polymorphisms in CYP1A1 and overall cancer risk: a meta-analysis.

Bin Wu, Kang Liu, Huaxing Huang, Jun Yuan, Wanqing Yuan, Shangqian Wang, Tingting Chen, Hu Zhao, Changjun Yin

Abstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Cervical cancer in Thailand: 2023 update.Obstetrics & gynecology science · 2024
    Article
  5. Association of genetic predisposition studies inSaudi journal of biological sciences · 2024
    Article
  6. Review
  7. Article
  8. Article
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  10. Frontiers in physiology · 2017
    Article
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  12. Review
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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

9 authors.

Bin WuDepartment of Urology, The Affiliated Jiangyin Hospital of Southeast University Medical College, Wuxi, China.
Kang LiuDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Huaxing HuangThe First Clinical Medical College, Nanjing Medical University, Nanjing, China.
Jun YuanDepartment of Urology, The Affiliated Jiangyin Hospital of Southeast University Medical College, Wuxi, China.
Wanqing YuanDepartment of Orthopedics, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China.
Shangqian WangDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Tingting ChenDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Hu ZhaoDepartment of Urology, The Affiliated Jiangyin Hospital of Southeast University Medical College, Wuxi, China.
Changjun YinDepartment of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCytochrome P450 1A1 (CYP1A1) is a member of the CYP1 family, which is a key enzyme in the metabolism of many endogenous substrates and exogenous carcinogens. To date, many studies have examined the association between CYP1A1 MspI and Ile462Val polymorphisms and cancer risk in various populations, but their results have been conflicting rather than consistent.

methodsTo assess this relationship more precisely, a meta-analysis based on 198 publications was performed. Odds ratios (OR) and corresponding 95% confidence intervals (CIs) were used to assess the association. The statistical heterogeneity across studies was examined with a chi-square-based Q-test.

resultsOverall, a significant elevated risk of cancer was associated with CYP1A1 MspI and Ile462Val polymorphisms for all genetic models studied. Further stratified analysis by cancer types revealed that the MspI polymorphism may increase the risk of lung cancer and cervical cancer whereas the Ile462Val polymorphism may contribute to a higher risk of lung cancer, leukemia, esophageal carcinoma, and prostate cancer. In the subgroup analysis by ethnicity, obvious associations were found in the Asian population for the MspI polymorphism while an increased risk of cancer was observed in Asians and Caucasians for the Ile462Val polymorphism.

conclusionsThe results of this meta-analysis suggest that CYP1A1 MspI and Ile462Val polymorphisms contribute to increased cancer susceptibility among Asians. Additional comprehensive system analyses are required to validate this association and other related polymorphisms.

Indexed as

Asian PeopleCytochrome P-450 CYP1A1Deoxyribonuclease HpaIIGenetic Association StudiesHumansModels, GeneticMutation, MissenseNeoplasmsOdds RatioPolymorphism, GeneticRestriction MappingCYP1A1 protein, humanCytochrome P-450 CYP1A1Deoxyribonuclease HpaII

Identifiers

PMID24391993
PMCPMC3877352

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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.