Evidence map›Paper›PMID 25408961›Full record

ArticleAmerican journal of respiratory and critical care medicine2015

New risk factors for adult-onset incident asthma. A nested case-control study of host antioxidant defense.

Emma K Larkin, Yu-Tang Gao, Tebeb Gebretsadik, Terryl J Hartman, Pingsheng Wu, Wanqing Wen, Gong Yang, Chunxue Bai, Meiling Jin, L Jackson Roberts and 3 more

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Lipid Nutrition in Asthma.Cell biochemistry and biophysics · 2021
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Diet and asthma: an update.Current opinion in allergy and clinical immunology · 2015
    Review
  16. Review
  17. Adult-onset asthma prevention. Should we be investing in antioxidant defense?American journal of respiratory and critical care medicine · 2015
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 2 countries.

Emma K Larkin1 Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine.
Yu-Tang Gao
Tebeb Gebretsadik
Terryl J Hartman
Pingsheng Wu
Wanqing Wen
Gong Yang
Chunxue Bai
Meiling Jin
L Jackson Roberts
Myron Gross
Xiao O Shu
Tina V Hartert
Vanderbilt University · USFudan University · CNEmory University · USUniversity of Minnesota · US

Funding

VANDERBILT UNIVERSITY CTSA FOR PEDIATRIC RESEARCHUL1RR024975 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$45.7M
The Vanderbilt Institute for Clinical and Translational Research (VICTR)UL1TR000445 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BERNARD, GORDON RAPHAEL · 2012 to 2016
$41.4M
Shanghai Womens Health StudyUM1CA182910 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI ZHENG, WEI · 2014 to 2018
$5.9M
Dietary Antioxidants and Incidence of Adult-onset AsthmaR01AI050884 · NIAID · VANDERBILT UNIVERSITY · PI HARTERT, TINA V · 2003 to 2007
$3.0M
Midcareer Investigator Patient-oriented Research Award in Bronchiolitis & AsthmaK24AI077930 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HARTERT, TINA V · 2008 to 2017
$1.6M
NCATS NIH HHS 2 UL1 TR000445-06NCATS NIH HHS UL1 TR000445NCI NIH HHS N02 CP011010NCI NIH HHS N02-CP11010-66NCI NIH HHS UM1 CA182910NCRR NIH HHS UL1 RR024975NCRR NIH HHS UL1 RR024975-01NIAID NIH HHS K24 AI077930NIAID NIH HHS K24 AI 77930NIAID NIH HHS R01 AI050884NIAID NIH HHS R01 AI 50884
6 · The paper itself

Abstract

rationaleHost antioxidant defense, consisting of enzymatic antioxidant activity and nonenzymatic antioxidant micronutrients, is implicated in asthma pathogenesis. Studies of antioxidant defense and adult incident asthma have either used measures of antioxidants estimated from questionnaires or not considered enzymatic aspects of host defense.

objectivesWe conducted the first study designed and powered to investigate the association of antioxidant defenses on adult incident asthma.

methodsIn a nested case-control study, we followed Shanghai women (aged 40-70 years) without prevalent asthma at baseline, over 8 years. Subjects with incident asthma were ascertained prospectively by gold standard testing of symptomatic women and matched to two asymptomatic control subjects. MEASUREMENTS AND MAIN

resultsBaseline urinary F2-isoprostanes, plasma concentrations of antioxidant micronutrients (tocopherols, xanthines, carotenes, and lycopene), and antioxidant enzyme activity (platelet-activating factor acetylhydrolase [PAF-AH] and superoxide dismutase) were measured from samples collected before disease onset. Among 65,372 women, 150 (0.24%) developed asthma. F2-isoprostane levels before asthma onset were not different between cases and control subjects. Doubling of α-tocopherol concentrations and PAF-AH activity was associated with 50 and 37% decreased risk of incident asthma (α-tocopherol: adjusted odds ratio = 0.52; 95% confidence interval, 0.32-0.84; PAF-AH: adjusted odds ratio = 0.63; 95% confidence interval, 0.42-0.93).

conclusionsIn this prospective study, α-tocopherol, within normal reference ranges, and PAF-AH enzymatic activity were associated with decreased asthma development. These modifiable risk factors may be an effective strategy to test for primary asthma prevention.

Indexed as

1-Alkyl-2-acetylglycerophosphocholine EsteraseAdultAgedAge of Onsetalpha-TocopherolAntioxidantsAsthmaBiomarkersCase-Control StudiesChinaF2-IsoprostanesFemaleHumansMicronutrientsMiddle AgedOxidative Stress1-Alkyl-2-acetylglycerophosphocholine Esterasealpha-TocopherolAntioxidantsBiomarkersF2-IsoprostanesMicronutrientsPlatelet Activating Factorantioxidantsasthmaincidence studyplatelet-activating factor acetylhydrolaseα-tocopherol

Identifiers

PMID25408961
PMCPMC4299629
OpenAlexW2066482942

What OpenQuestion holds

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Registered trials

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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.