Evidence map›Paper›PMID 23446900›Full record

ArticleThe American journal of clinical nutrition2013

One-carbon metabolism factors and leukocyte telomere length.

Jason J Liu, Jennifer Prescott, Edward Giovannucci, Susan E Hankinson, Bernard Rosner, Immaculata De Vivo

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. The Importance of Telomere Shortening for Atherosclerosis and Mortality.Journal of cardiovascular development and disease · 2020
    Review
  8. Article
  9. Article
  10. Article
  11. Serum and Dietary Folate and Vitamin BOxidative medicine and cellular longevity · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Cumulative PM(2.5) exposure and telomere length in workers exposed to welding fumes.Journal of toxicology and environmental health. Part A · 2014
    Article
  19. 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

6 authors at 2 institutions in 1 country.

Jason J LiuDepartments of Epidemiology, Harvard School of Public Health, Boston, MA, USA.
Jennifer Prescott
Edward Giovannucci
Susan E Hankinson
Bernard Rosner
Immaculata De Vivo
Harvard University Press · USHarvard University · US

Funding

Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI TWOROGER, SHELLEY S · 2000 to 2019
$77.8M
BIOCHEMICAL MARKERS IN THE NURSES'HEALTH STUDY COHORTR01CA049449 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI HANKINSON, SUSAN E · 1989 to 2008
$11.3M
NCI NIH HHS P01 CA087969NCI NIH HHS P01 CA87969NCI NIH HHS R01 CA049449NCI NIH HHS R01 CA49449
6 · The paper itself

Abstract

backgroundDietary and genetic factors involved in the one-carbon metabolism pathway may affect telomere length through DNA methylation and synthesis, but this has not been comprehensively investigated in epidemiologic studies.

objectiveWe cross-sectionally examined associations between dietary and genetic factors in the one-carbon metabolism pathway and relative peripheral blood leukocyte telomere length.

designA total of 1715 participants from the Nurses' Health Study (NHS) had measurements of relative telomere length and plasma concentrations of folate, vitamin B-6, vitamin B-12, cysteine, and homocysteine. Food-frequency questionnaire (FFQ) measurements were also used for the assessment of folate, choline, methionine, riboflavin, vitamin B-6, vitamin B-12, and alcohol intakes. Genotyping was performed on 475 participants with telomere measurements on 29 mostly nonsynonymous single-nucleotide polymorphisms (SNPs) involved in one-carbon metabolism. Unconditional logistic and linear regression models were used.

resultsThere were no significant dose-response relations between any plasma- or FFQ-measured dietary factors and relative telomere length in multivariate analyses. For folate, vitamin B-6, and vitamin B-12, results from the use of FFQ data were consistent with plasma-biomarker findings. We showed no significant associations that involved SNPs and relative telomere length after we accounted for the false discovery rate.

conclusionOur analyses involving plasma and questionnaire measurements of one-carbon metabolism factors show that some key dietary and genetic factors in this metabolic network are not associated with relative peripheral blood leukocyte telomere length.

Indexed as

DietMetabolic Networks and PathwaysNutritional StatusAgedBiomarkersCarbonCholineCross-Sectional StudiesDNADNA MethylationEthanolFolic AcidGenotypeHumansLeukocytesMethionineBiomarkersCarbonCholineDNAEthanolFolic AcidMethionineVitamin B 12Vitamin B 6Vitamin B Complex

Identifiers

PMID23446900
PMCPMC3607653
OpenAlexW2144586496

What OpenQuestion holds

Textmetadata
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.