ArticleGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2009
Association between dietary heterocyclic amine levels, genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 and risk of stomach cancer: a hospital-based case-control study in Japan.
Article in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 10 of them syntheses that pooled 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.
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.
Who cites it
16 citing papers in PubMed, 10 syntheses or guidelines pooled it, 28 citations in OpenAlex.
- Dietary meat mutagens intake and cancer risk: A systematic review and meta-analysis.Frontiers in nutrition · 2022Pooled it
- Cytochrome P450 1A1 gene polymorphisms and digestive tract cancer susceptibility: a meta-analysis.Journal of cellular and molecular medicine · 2016Pooled it
- Lack of association between polymorphisms in the CYP1A2 gene and risk of cancer: evidence from meta-analyses.BMC cancer · 2016Pooled it
- Association between the CYP1A2 polymorphisms and risk of cancer: a meta-analysis.Molecular genetics and genomics : MGG · 2015Pooled it
- Gene-diet interactions in gastric cancer risk: a systematic review.World journal of gastroenterology · 2014Pooled it
- N-acetyltransferase 2 status and gastric cancer risk: a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014Pooled it
- The effect of CYP1A1 and CYP1A2 polymorphisms on gastric cancer risk among different ethnicities: a systematic review and meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014Pooled it
- CYP1A2 rs762551 polymorphism contributes to cancer susceptibility: a meta-analysis from 19 case-control studies.BMC cancer · 2012Pooled it
- Meta-analysis of the association of CYP1A1 polymorphisms with gastric cancer susceptibility and interaction with tobacco smoking.Molecular biology reports · 2012Pooled it
- Quantitative assessment of the associations between CYP1A1 polymorphisms and gastric cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2012Pooled it
- Tissue levels of persistent organic pollutants and biotransformation enzyme polymorphisms in human stomach cancer.Cancer causes & control : CCC · 2026Article
- Diet, Gastric Microbiota, and Metabolites in Gastric Tumorigenesis.Research (Washington, D.C.) · 2025Review
- Dietary heterocyclic aromatic amine intake and cancer risk: epidemiological evidence from Japanese studies.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2021Review
- Elevated exposure to polycyclic aromatic hydrocarbons (PAHs) may trigger cancers in Pakistan: an environmental, occupational, and genetic perspective.Environmental science and pollution research international · 2020Review
- Dietary exposure of Nigerians to mutagens and estrogen-like chemicals.International journal of environmental research and public health · 2014Article
- Polymorphisms in xenobiotic metabolizing genes, intakes of heterocyclic amines and red meat, and postmenopausal breast cancer.Nutrition and cancer · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough the associations between grilled (broiled) or barbecued meats or fish intake and stomach cancer risk have been investigated, the evidence implicating heterocyclic amine (HCA) intake as a cause of stomach cancer is limited. We conducted a case-control study to investigate the association between HCA intake and stomach cancer risk. We also investigated the possible effect of genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 on stomach cancer.
methodsHCA exposure data were assessed using a self-administered food-frequency questionnaire, and estimated HCA intake was verified by measuring 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) values in human hair. A total of 149 cases and 296 controls were included in the analyses. Odds ratios (ORs) were calculated, using conditional logistic regression analysis, to compare intake levels between the first and third tertiles.
resultsResults showed no statistically significant increase in the risk of stomach cancer with respect to total HCA intake (OR, 1.11; 95% confidence interval [CI], 0.36, 3.49), or with respect to the intake of individual HCAs; namely, PhIP, 2-amino-3, 4-dimethylimidazo[4,5-f]quinoline (MeIQ), and 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx). Genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 did not influence the association of HCA intake with stomach cancer.
conclusionIn the present study, with a limited sample size of subjects with low HCA exposure, no association was found between HCA intake and stomach cancer, nor was there any evidence of any influence by genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 on the risk of stomach cancer.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.