Evidence map›Paper›PMID 23803886›Full record

Trial reportThe American journal of clinical nutrition2013

Metabolomic profile of response to supplementation with β-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study.

Alison M Mondul, Joshua N Sampson, Steven C Moore, Stephanie J Weinstein, Anne M Evans, Edward D Karoly, Jarmo Virtamo, Demetrius Albanes

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report 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. It is linked to trial NCT00342992 (Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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.

NCT00342992 completednot on this map

Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study (ATBC Study) Population

TypeobservationalSponsorNational Cancer Institute (NCI)Ran1995 to 2020Enrolled29,133ConditionsStroke, Diabetes Mellitus, Heart Disease, Cancer
3 · Its place in the literature

Who cites it

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

  1. Pooled it
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  3. Review
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  5. Article
  6. Article
  7. Review
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  14. Review
  15. Article
  16. Vitamins, metabolomics, and prostate cancer.World journal of urology · 2017
    Article
  17. Metabolomic profiles as reliable biomarkers of dietary composition.The American journal of clinical nutrition · 2017
    Article
  18. Identifying biomarkers of dietary patterns by using metabolomics.The American journal of clinical nutrition · 2017
    Observational
  19. Cigarette smoking behaviour and blood metabolomics.International journal of epidemiology · 2016
    Article
  20. 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

8 authors at 4 institutions in 2 countries.

Alison M MondulNutritional Epidemiology Branch and the Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA.
Joshua N Sampson
Steven C Moore
Stephanie J Weinstein
Anne M Evans
Edward D Karoly
Jarmo Virtamo
Demetrius Albanes
Metabolon (United States) · USDepartment of Health and Human Services · USFinnish Institute for Health and Welfare · FINational Institutes of Health · US

Funding

Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) StudyZIACP010195 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI ALBANES, DEMETRIUS · 2009 to 2025
$22.5M
U S-FINLAND STUDIES OF NUTRITION AND CANCERN01CN045165 · CN · NATIONAL PUBLIC HEALTH INSTITUTE · PI HEINONEN, OLLI P · 1985 to 1996
–
CCR NIH HHS N01-RC-37004CCR NIH HHS N01-RC-45035Intramural NIH HHSNCI NIH HHS N01-CN-45165PHS HHS HHSN261200800001EPHS HHS HHSN261201000006C
6 · The paper itself

Abstract

backgroundTwo chemoprevention trials found that supplementation with β-carotene increased the risk of lung cancer and overall mortality. The biologic basis of these findings remains poorly understood.

objectiveThe objective was to compare the on-study change in metabolomic profiles of men randomly assigned to receive or not receive β-carotene supplements in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study.

designThe ATBC Study was a randomized, double-blind, placebo-controlled, primary cancer prevention trial; participants were Finnish male smokers assigned to 1 of 4 intervention groups: 1) α-tocopherol, 2) β-carotene, 3) both, or 4) placebo. Fifty participants with both baseline and follow-up fasting serum samples were randomly selected from each of these groups. Metabolomic profiling was conducted by mass spectrometry. The association between change in each metabolite over time and trial assignment (β-carotene or no β-carotene) was estimated by linear regression.

resultsWe measured 489 metabolites, and 17 changed significantly (P < 0.05) in response to β-carotene supplementation. More of these 17 metabolites were of xenobiotic origin than would be expected by chance (9 of 60, or 15%; P = 0.00004). We also found a suggestive association with 1,5-anhydroglucitol-a marker of glycemic control (β = -0.379, P = 0.0071).

conclusionsMale smokers supplemented with β-carotene developed metabolomic profiles consistent with the induction of cytochrome P450 enzymes, the primary metabolizers of xenobiotics in humans. These findings may shed light on the increased mortality associated with β-carotene supplementation in the ATBC Study and suggest the need to explore potential interactions between medication use and dietary supplements, particularly among smokers. This trial was registered at clinicaltrials.gov as NCT00342992.

Indexed as

Dietary SupplementsMetabolomeSmokingAgedalpha-Tocopherolbeta CaroteneBlood GlucoseChromatography, LiquidCytochrome P-450 CYP1A2Cytochrome P-450 CYP2E1DeoxyglucoseDouble-Blind MethodFastingFinlandFollow-Up StudiesHumans1,5-anhydroglucitolalpha-Tocopherolbeta CaroteneBlood GlucoseCYP1A2 protein, humanCytochrome P-450 CYP1A2Cytochrome P-450 CYP2E1Deoxyglucose

Identifiers

PMID23803886
PMCPMC3712556
OpenAlexW2145652589

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.