Evidence map›Paper›PMID 10408872›Full record

ArticleBritish journal of cancer1999

Cytochrome P450 1A1 genetic polymorphisms and risk of hepatocellular carcinoma among chronic hepatitis B carriers.

M W Yu, Y H Chiu, S Y Yang, R M Santella, H D Chern, Y F Liaw, C J Chen

Open access · bronzeAbstract read
In one paragraph

Article in British journal of cancer, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 18% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 67 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Cross-Species Upregulation ofCurrent issues in molecular biology · 2026
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  13. Impact of hepatitis C virus infection on lifestyle.World journal of gastroenterology · 2007
    Article
  14. Heavy smoking and liver.World journal of gastroenterology · 2006
    Review
  15. Identification of CYP2C9*2 allele in HepG2 cell line.International journal of gastrointestinal cancer · 2006
    Article
  16. Article
  17. 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

7 authors at 4 institutions in 3 countries.

M W YuSchool of Public Health and Graduate Institute of Epidemiology, College of Public Health, National Taiwan University, Taipei.
Y H Chiu
S Y Yang
R M Santella
H D Chern
Y F Liaw
C J Chen
National Taiwan University · TWChang Gung Memorial Hospital · TWColumbia University · USInstytut Farmaceutyczny · PL

Funding

BIOLOGICAL MONITORING FOR EXPOSURE TO AFLATOXINR01ES005116 · NIEHS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI SANTELLA, REGINA M · 1990 to 2014
$5.2M
NIEHS NIH HHS ES05116
6 · The paper itself

Abstract

Cigarette smoking has been associated with increased risk of hepatocellular carcinoma (HCC) in some epidemiological studies. Cytochrome P450 1A1 (CYP1A1) is involved in the biotransformation of tobacco-derived polycyclic aromatic hydrocarbons (PAHs) into carcinogenic metabolites. The aim of this study was to determine whether CYP1A1 polymorphisms were related to HCC risk among chronic hepatitis B virus (HBV) carriers. Genotypic variants of CYP1A1 were determined using polymerase chain reaction in 81 incident cases of HCC and 409 controls nested in a cohort study of 4841 male chronic HBV carriers. No overall association between CYP1A1 genotypes and HCC was observed. The presence of the Mspl (odds ratio (OR) 3.15, P = 0.0196) or Ile-Val (OR 1.99, P = 0.0855) variant allele of CYP1A1 increased HCC risk among smokers, but posed no increased risk among non-smokers. The smoking-related HCC risk was most pronounced among those who had a susceptible allele of the CYP1A1 and a deficient genotype of glutathione S-transferase M1, which detoxifies PAH electrophilic metabolites produced by CYP1A1. In the absence of the Ile-Val variant allele, the Mspl polymorphism was still associated with smoking-related HCC. This study suggests that tobacco-derived PAHs play a role in HCC risk among chronic HBV carriers, and CYP1A1 polymorphism is an important modulator of the hepatocarcinogenic effect of PAHs. The Mspl and Ile-Val polymorphisms of CYP1A1 may have different mechanisms for increasing susceptibility to smoking-related HCC.

Indexed as

AdultAgedCarcinoma, HepatocellularCarrier StateCase-Control StudiesCytochrome P-450 CYP1A1Genetic Predisposition to DiseaseGenotypeHepatitis B, ChronicHepatitis B Surface AntigensHepatitis B virusHumansLiver NeoplasmsMaleMiddle AgedPolymorphism, GeneticCytochrome P-450 CYP1A1Hepatitis B Surface Antigens

Identifiers

PMID10408872
PMCPMC2362308
OpenAlexW2082083002

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.