Evidence map›Paper›PMID 20551579›Full record

ArticleJournal of epidemiology2010

Risk factors for colon cancer in Northeastern Thailand: interaction of MTHFR codon 677 and 1298 genotypes with environmental factors.

Supannee Sriamporn Promthet, Chamsai Pientong, Tipaya Ekalaksananan, Surapon Wiangnon, Kirati Poomphakwaen, Nopparat Songserm, Peechanika Chopjitt, Malcolm A Moore, Shinkan Tokudome

Open access · goldAbstract read
In one paragraph

Article in Journal of epidemiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 10 pooled it
3.9field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 10 syntheses or guidelines pooled it, 38 citations in OpenAlex.

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  5. Association of MTHFR C677T polymorphisms and colorectal cancer risk in Asians: evidence of 12,255 subjects.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2014
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  9. Quantitative assessment of the association between MTHFR C677T polymorphism and colorectal cancer risk in East Asians.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2012
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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 at 5 institutions in 4 countries.

Supannee Sriamporn PromthetDepartment of Epidemiology, Faculty of Public Health, Khon Kaen University, Khon Kaen 40002, Thailand. supannee@kku.ac.th
Chamsai Pientong
Tipaya Ekalaksananan
Surapon Wiangnon
Kirati Poomphakwaen
Nopparat Songserm
Peechanika Chopjitt
Malcolm A Moore
Shinkan Tokudome
Khon Kaen University · THFaculty of Public Health · GBLoei Rajabhat University · THNational Institute of Nutrition · INUnion for International Cancer Control · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPolymorphisms in methylenetetrahydrofolate reductase (MTHFR), such as MTHFR C677T and A1298C, are associated with several cancers. This study aimed to evaluate the effects of MTHFR polymorphisms on colon cancer risk and possible interactions with environmental factors in a population from northeastern Thailand.

methodsThis hospital-based case-control study was conducted during 2002-2006; 130 colon cancer cases and 130 age- and sex-matched controls were enrolled. Information was collected and blood samples were obtained for assay of MTHFR C677T and A1298C polymorphisms by polymerase chain reaction with restriction fragment length polymorphism techniques. Associations between variables of interest and colon cancer were assessed using conditional logistic regression.

resultsIncreased risk of colon cancer was associated with alcohol consumption and bowel habits. Alcohol drinkers who consumed < or = 0.50 or >0.50 units of alcohol per day had elevated risks (OR(adj) = 3.5; 95% CI: 1.19-10.25 and OR(adj) = 1.71; 95% CI: 0.74-3.96, respectively). The risk was also higher in subjects with frequent constipation (11.69; 2.18-62.79) and occasional constipation (3.43; 1.72-6.82). An interaction was observed between the MTHFR C677T polymorphism and freshwater fish consumption on colon cancer risk (P value for interaction = 0.031). Interactions were observed between the MTHFR A1298C polymorphism and bowel habits, family history of cancer, alcohol consumption, and beef consumption on colon cancer risk (P-value for interaction = 0.0005, 0.007, 0.067, 0.003, respectively).

conclusionsIn a Thai population, colon cancer risk was associated with alcohol and beef consumption, bowel habits, and family history of cancer. Interactions between MTHFR polymorphisms and environmental factors were also observed.

Indexed as

EnvironmentPolymorphism, GeneticAdultAlcohol DrinkingCase-Control StudiesColonic NeoplasmsConstipationDietFemaleGenetic Predisposition to DiseaseGenotypeHumansLogistic ModelsMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID20551579
PMCPMC3900794
OpenAlexW2078096478

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.