Evidence map›Paper›PMID 20068159›Full record

ArticleCancer research2010

Multivitamins, folate, and green vegetables protect against gene promoter methylation in the aerodigestive tract of smokers.

Christine A Stidley, Maria A Picchi, Shuguang Leng, Randy Willink, Richard E Crowell, Kristina G Flores, Huining Kang, Tim Byers, Frank D Gilliland, Steven A Belinsky

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Nutritional Genomics and Cancer Prevention.Cancer treatment and research · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Variation of DNA Methylation in Newborns Associated with Exhaled Carbon Monoxide during Pregnancy.International journal of environmental research and public health · 2021
    Article
  18. Review
  19. Article
  20. Gene Promoter Hypermethylation Detected in Sputum Predicts FEVAmerican journal of respiratory and critical care medicine · 2018
    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

10 authors at 5 institutions in 1 country.

Christine A StidleyDepartment of Internal Medicine, University of New Mexico, New Mexico, USA.
Maria A Picchi
Shuguang Leng
Randy Willink
Richard E Crowell
Kristina G Flores
Huining Kang
Tim Byers
Frank D Gilliland
Steven A Belinsky
New Mexico VA Health Care System · USLovelace Respiratory Research Institute · USUniversity of Colorado Denver · USUniversity of New Mexico · USUniversity of Southern California · US

Funding

Factors for Epigenetic Silencing of Lung Cancer GenesU01CA097356 · NCI · LOVELACE BIOMEDICAL & ENVIRONMENTAL RESEARCH INSTITUTE · PI BELINSKY, STEVEN A · 2005 to 2009
$3.9M
NCI NIH HHS U01 CA097356
6 · The paper itself

Abstract

One promising approach for early detection of lung cancer is by monitoring gene promoter hypermethylation events in sputum. Epidemiologic studies suggest that dietary fruits and vegetables and the micronutrients they contain may reduce risk of lung cancer. In this study, we evaluated whether diet and multivitamin use influenced the prevalence of gene promoter methylation in cells exfoliated from the aerodigestive tract of current and former smokers. Members (N = 1,101) of the Lovelace Smokers Cohort completed the Harvard Food Frequency Questionnaire and provided a sputum sample that was assessed for promoter methylation of eight genes commonly silenced in lung cancer and associated with risk for this disease. Methylation status was categorized as low (fewer than two genes methylated) or high (two or more genes methylated). Logistic regression models were used to identify associations between methylation status and 21 dietary variables hypothesized to affect the acquisition of gene methylation. Significant protection against methylation was observed for leafy green vegetables [odds ratio (OR) = 0.83 per 12 monthly servings; 95% confidence interval (95% CI), 0.74-0.93] and folate (OR, 0.84 per 750 microg/d; 95% CI, 0.72-0.99). Protection against gene methylation was also seen with current use of multivitamins (OR, 0.57; 95% CI, 0.40-0.83). This is the first cohort-based study to identify dietary factors associated with reduced promoter methylation in cells exfoliated from the airway epithelium of smokers. Novel interventions to prevent lung cancer should be developed based on the ability of diet and dietary supplements to affect reprogramming of the epigenome.

Indexed as

DietDNA MethylationAdultAgedDNAFemaleFolic AcidHumansMaleMiddle AgedPromoter Regions, GeneticSmokingSputumVegetablesVitaminsDNAFolic AcidVitamins

Identifiers

PMID20068159
PMCPMC3076796
OpenAlexW2025508129

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.