Evidence map›Paper›PMID 22144047›Full record

ArticleCancer2012

A single-nucleotide polymorphism in the methylene tetrahydrofolate reductase (MTHFR) gene is associated with risk of radiation pneumonitis in lung cancer patients treated with thoracic radiation therapy.

Raymond H Mak, Brian M Alexander, Kofi Asomaning, Rebecca S Heist, Chen-yu Liu, Li Su, Rihong Zhai, Marek Ancukiewicz, Brian Napolitano, Andrzej Niemierko and 3 more

Open access · greenAbstract read
In one paragraph

Article in Cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Prediction of radiation pneumonitis in lung cancer patients: a systematic review.Journal of cancer research and clinical oncology · 2012
    Pooled it
  2. Article
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  7. Genetic variants in the ITGB6 gene is associated with the risk of radiation pneumonitis in lung cancer patients treated with thoracic radiation therapy.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  8. Article
  9. Article
  10. Review
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  12. Article
  13. Functional and biologic metrics for predicting radiation pneumonitis in locally advanced non-small cell lung cancer patients treated with chemoradiotherapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2012
    Article
  14. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 2 countries.

Raymond H MakHarvard Radiation Oncology Program, Boston, MA, USA.
Brian M Alexander
Kofi Asomaning
Rebecca S Heist
Chen-yu Liu
Li Su
Rihong Zhai
Marek Ancukiewicz
Brian Napolitano
Andrzej Niemierko
Henning Willers
Noah C Choi
David C Christiani
Massachusetts General Hospital · USBrigham and Women's Hospital · USNational Taiwan University · TWZero to Three · US

Funding

Molecular and Genetic Analysis of Lung Cancer SurvivalR01CA092824 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 2002 to 2013
$5.9M
GENETIC SUSCEPTIBILITY TO LUNG CANCERR01CA074386 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTIANI, DAVID C · 1997 to 2008
$4.8M
NCI NIH HHS CA 74386NCI NIH HHS R01 CA074386NCI NIH HHS R01 CA092824
6 · The paper itself

Abstract

backgroundThis study examined the association between functional single-nucleotide polymorphisms in candidate genes from oxidative stress pathways and risk of radiation pneumonitis (RP) in patients treated with thoracic radiation therapy for locally advanced lung cancer.

methodsA review was conducted of 136 patients treated with radiation therapy for lung cancer between 2001 and 2007, and who had prior genotyping of functional single-nucleotide polymorphisms in oxidative stress genes including superoxide dismutase 2 (SOD2; rs4880) and methylene tetrahydrofolate reductase (MTHFR; rs1801131, rs1801133). RP events were retrospectively scored using the National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0. Cox proportional hazard regression was performed to identify clinical variables and genotypes associated with risk of RP of grades ≥2 and ≥3 on univariate and multivariate analysis, respectively. P values were corrected for multiple hypothesis esting.

resultsWith a median follow-up of 21.4 months, the incidence of grade ≥2 RP was 29% and grade ≥3 RP was 14%. On multivariate analysis, after adjusting for clinical factors such as concurrent chemotherapy and consolidation docetaxel, and lung dosimetric parameters such as volume receiving greater than 20 Gy and mean lung dose, MTHFR genotype (rs1801131; AA versus AC/CC) was significantly associated with risk of grade ≥2 RP (hazard ratio: 0.37; 95% confidence interval: 0.18-0.76; P = .006, corrected P = .018) and grade ≥3 RP (hazard ratio: 0.21; 95% confidence interval: 0.06-0.70; P = .01; corrected P = .03). SOD2 genotype was not associated with RP.

conclusionsThis study showed an association between MTHFR genotype and risk of clinically significant RP. Further study of MTHFR-related pathways may provide insight into the mechanisms behind RP.

Indexed as

Polymorphism, Single NucleotideAdultAgedAged, 80 and overFemaleHumansLung NeoplasmsMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedRadiation DosageRadiation PneumonitisRadiotherapyRiskRisk FactorsMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID22144047
PMCPMC3312983
OpenAlexW1543201376

What OpenQuestion holds

Textmetadata
LicenceTDM
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.