Evidence map›Paper›PMID 17185285›Full record

ArticleEnvironmental health perspectives2006

Early environmental exposures and intracellular Th1/Th2 cytokine profiles in 24-month-old children living in an agricultural area.

Paurene Duramad, Kim Harley, Michael Lipsett, Asa Bradman, Brenda Eskenazi, Nina T Holland, Ira B Tager

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 7% 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 92 citations in OpenAlex.

  1. Respiratory and Allergic Effects in Children Exposed to Pesticides-A Systematic Review.International journal of environmental research and public health · 2020
    Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Gas stove use and asthma in a longitudinal study of Puerto Rican children and adolescents.The journal of allergy and clinical immunology. In practice · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Immunotoxic role of organophosphates: An unseen risk escalating SARS-CoV-2 pathogenicity.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2021
    Review
  16. Article
  17. Environmental exposure to pesticides and respiratory health.European respiratory review : an official journal of the European Respiratory Society · 2015
    Review
  18. Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Paurene DuramadCenter for Children's Environmental Health, School of Public Health, University of California, Berkeley, California 94720-7460, USA.
Kim Harley
Michael Lipsett
Asa Bradman
Brenda Eskenazi
Nina T Holland
Ira B Tager
Center for Environmental Health · USUniversity of California, San Francisco · US

Funding

Project C: Epigenetic Effects of DDT/E and PBDEs on PubertyP01ES009605 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 1999 to 2015
$11.2M
NIEHS NIH HHS 2P01ES009605-06NIEHS NIH HHS P01 ES009605
6 · The paper itself

Abstract

backgroundChildren who reside in agricultural settings are potentially exposed to higher levels of organophosphate (OP) pesticides, endotoxin, and allergens than their urban counterparts. Endotoxin and allergens stimulate maturation of the immune response in early childhood, but little is known about the effect of exposures to OPs or to the three combined.

objectivesIn this study, we investigated the relationships between these exposures and T-helper 1 (Th1) and T-helper 2 (Th2) cytokines, biomarkers of allergic asthma, in the subjects of CHAMACOS (Center for the Health Assessment of Mothers and Children of Salinas), a longitudinal birth cohort in Salinas Valley, California. Exposures were ascertained by interviewer-administered questionnaires and by home visits, and clinical diagnoses were abstracted from medical records. Blood samples were collected at 12 and 24 months of age and analyzed for Th1/Th2 status by flow cytometric detection of intracellular interferon-gamma/interleukin-4 cytokine expression.

findingsMean Th2 levels were significantly higher in children with doctor-diagnosed asthma and children with wheezing at 2 years of age. In a multiple linear regression model, exclusive breast-feeding at 1 month and pet ownership were associated with 35.3% (p < 0.01) and 34.5% (p = 0.01) increases in Th1, respectively. Maternal agricultural work and presence of gas stove in the home were associated with a 25.9% increase (p = 0.04) and 46.5% increase (p < 0.01) in Th2, respectively.

conclusionsAsthma and wheeze outcomes in children at 24 months of age are associated with elevated Th2 status in children at an early age. Our data further suggest that early exposures to an agricultural environment, breast-feeding, pets, and gas stoves affect the development of children's Th1/Th2 immune response.

Indexed as

Environmental ExposureAsthmaCaliforniaCD4 AntigensChild, PreschoolCytokinesFemaleFlow CytometryHumansInfantInterferon-gammaInterleukin-4Linear ModelsMaleRural PopulationTh1 CellsCD4 AntigensCytokinesInterferon-gammaInterleukin-4

Identifiers

PMID17185285
PMCPMC1764130
OpenAlexW1987872533

What OpenQuestion holds

Textmetadata
LicenceCC0
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.