Evidence map›Paper›PMID 19302247›Full record

ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2009

Genetic and environmental contributions to allergen sensitization in a Chinese twin study.

X Liu, S Zhang, H-J Tsai, X Hong, B Wang, Y Fang, X Liu, J A Pongracic, X Wang

Open access · greenAbstract readTwin Study
In one paragraph

Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Update on the genetics of allergic diseases.The Journal of allergy and clinical immunology · 2025
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Genetics of Food Allergy.Immunology and allergy clinics of North America · 2021
    Review
  13. The Phenotype of the Food-Allergic Patient.Immunology and allergy clinics of North America · 2021
    Review
  14. Article
  15. Article
  16. Advancing Food Allergy Through Omics Sciences.The journal of allergy and clinical immunology. In practice · 2021
    Review
  17. Current insights into the genetics of food allergy.The Journal of allergy and clinical immunology · 2021
    Review
  18. Article
  19. Mechanisms of gastrointestinal allergic disorders.The Journal of clinical investigation · 2019
    Review
  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

9 authors at 2 institutions in 2 countries.

X LiuMary Ann and J. Milburn Smith Child Health Research Program, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Children's Memorial Hospital, Chicago, IL, USA. xnliu@childrensmemorial.org
S Zhang
H-J Tsai
X Hong
B Wang
Y Fang
X Liu
J A Pongracic
X Wang
Northwestern University · USAnhui Medical University · CN

Funding

Epidemiology of the Metabolic Syndrome in ChildrenR01HD049059 · NICHD · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI WANG, XIAOBIN · 2005 to 2009
$2.1M
Sleep and Adiposity: A Prospective Twin StudyR01HL086461 · NHLBI · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI LIU, XIN · 2006 to 2009
$2.0M
Establishing the Precursors of Osteoporosis in ChildrenR01AG032227 · NIA · UNIVERSITY OF ILLINOIS AT CHICAGO · PI XU, XIPING · 2007 to 2010
$1.3M
NHLBI NIH HHS R01 HL 086419NHLBI NIH HHS R01 HL086461NIA NIH HHS R01 AG032227NICHD NIH HHS R01 HD049059NICHD NIH HHS R01 HD.49059
6 · The paper itself

Abstract

backgroundAllergic disease is on the rise worldwide. Effective prevention of allergic disease requires comprehensive understanding of the factors that contribute to its intermediate phenotypes, such as sensitization to common allergens.

objectiveTo estimate the degree of genetic and environmental contributions to sensitization to food and aeroallergens.

methodsSensitization was defined as a positive skin prick test to an allergen. We calculated the zygosity-specific concordance rates and odds ratios (ORs) for sensitization to food and aeroallergens in 826 Chinese twin pairs [472 monozygotic (MZ) and 354 dizygotic (DZ)] aged 12-28 years. We also applied structural equation modelling procedures to estimate genetic and environmental influences on sensitization.

resultsThe concordance rates and risk of sensitization in one twin given the presence vs. the absence of sensitization in the other twin were higher in MZ twins than those in DZ twins. However, a large number of MZ twins were discordant in sensitization to common allergens. These observations suggest both genetic and environmental factors influence sensitization. Consistently, the estimated heritability and individual environmental components of the liability to sensitization ranged from 0.51 to 0.68 and 0.32 to 0.49, respectively, based on the best-fitted structural equation model. We also observed high phenotypic correlations between sensitization to two aeroallergens (cockroach and dust mite: 0.83) and two food allergens (peanut and shellfish: 0.58), but only moderate correlations for the pairs between sensitization to a food and an aeroallergen (0.31-0.46). The shared genetic and environmental factors between paired sensitizations contribute to the observed correlations.

conclusionWe demonstrated that sensitization to common food and aeroallergens were influenced by both genetic and environmental factors. Moreover, we found that paired allergen sensitizations might share some common sets of genes and environmental factors. This study underscores the need to further delineate unique and/or pleiotropic genetic and environmental factors for allergen sensitization.

Indexed as

EnvironmentAdolescentAdultAllergensAnimalsAsian PeopleChildChinaCohort StudiesFemaleFollow-Up StudiesFood HypersensitivityHumansHypersensitivityMaleOdds RatioAllergens

Identifiers

PMID19302247
PMCPMC2756049
OpenAlexW2091970553

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.