Article open access publication

Fraction of exhaled nitric oxide values in childhood are associated with 17q11.2-q12 and 17q12-q21 variants

Journal of Allergy and Clinical Immunology, Elsevier, ISSN 0091-6749

Volume 134, 1, 2014

DOI:10.1016/j.jaci.2013.08.053, Dimensions: pub.1018141052, PMC: PMC4334587, PMID: 24315451,

Affiliations

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  1. (1) Erasmus University Medical Center, grid.5645.2
  2. (2) University of Bristol, grid.5337.2
  3. (3) University of Southern California, grid.42505.36
  4. (4) Helmholtz Zentrum München, grid.4567.0
  5. (5) University of Manchester, grid.5379.8
  6. (6) University of Ulm, grid.6582.9
  7. (7) University Medical Center Groningen, University of Groningen, Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, Groningen, The Netherlands
  8. (8) Danish Pediatric Asthma Center, Copenhagen University Hospital, Gentofte, Copenhagen, Denmark
  9. (9) University of Copenhagen, grid.5254.6, KU
  10. (10) Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, grid.466571.7
  11. (11) Center for Research in Environmental Epidemiology, grid.417617.2
  12. (12) Hospital del Mar Medical Research Institute, grid.20522.37
  13. (13) Karolinska Institute, grid.4714.6
  14. (14) Harvard University, grid.38142.3c
  15. (15) French Institute of Health and Medical Research, grid.7429.8
  16. (16) Paris Diderot University, grid.7452.4
  17. (17) Centre for research in epidemiology and population health, grid.463845.8
  18. (18) University of Paris-Sud, grid.5842.b
  19. (19) University of Chicago, grid.170205.1
  20. (20) University Hospital of Bern, grid.411656.1
  21. (21) Ludwig Maximilian University of Munich, grid.5252.0
  22. (22) University Medical Center Groningen, grid.4494.d
  23. (23) ib-salut, Area de Salut de Menorca, Balearic Islands, Spain
  24. (24) Department of Physiology, South Central Hospital, Stockholm, Sweden
  25. (25) University of Pennsylvania, grid.25879.31
  26. (26) Imperial College London, grid.7445.2
  27. (27) Sach’s Children's Hospital, Stockholm, Sweden
  28. (28) Pompeu Fabra University, grid.5612.0

Description

BACKGROUND: The fraction of exhaled nitric oxide (Feno) value is a biomarker of eosinophilic airway inflammation and is associated with childhood asthma. Identification of common genetic variants associated with childhood Feno values might help to define biological mechanisms related to specific asthma phenotypes. OBJECTIVE: We sought to identify the genetic variants associated with childhood Feno values and their relation with asthma. METHODS: Feno values were measured in children age 5 to 15 years. In 14 genome-wide association studies (N = 8,858), we examined the associations of approximately 2.5 million single nucleotide polymorphisms (SNPs) with Feno values. Subsequently, we assessed whether significant SNPs were expression quantitative trait loci in genome-wide expression data sets of lymphoblastoid cell lines (n = 1,830) and were related to asthma in a previously published genome-wide association data set (cases, n = 10,365; control subjects: n = 16,110). RESULTS: We identified 3 SNPs associated with Feno values: rs3751972 in LYR motif containing 9 (LYRM9; P = 1.97 × 10(-10)) and rs944722 in inducible nitric oxide synthase 2 (NOS2; P = 1.28 × 10(-9)), both of which are located at 17q11.2-q12, and rs8069176 near gasdermin B (GSDMB; P = 1.88 × 10(-8)) at 17q12-q21. We found a cis expression quantitative trait locus for the transcript soluble galactoside-binding lectin 9 (LGALS9) that is in linkage disequilibrium with rs944722. rs8069176 was associated with GSDMB and ORM1-like 3 (ORMDL3) expression. rs8069176 at 17q12-q21, but not rs3751972 and rs944722 at 17q11.2-q12, were associated with physician-diagnosed asthma. CONCLUSION: This study identified 3 variants associated with Feno values, explaining 0.95% of the variance. Identification of functional SNPs and haplotypes in these regions might provide novel insight into the regulation of Feno values. This study highlights that both shared and distinct genetic factors affect Feno values and childhood asthma.

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University of Copenhagen

Danish Open Access Indicator

2014: Unused

Research area: Medicine

Danish Bibliometrics Indicator

2014: Level 2

Research area: Medicine

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Times Cited: 25

Field Citation Ratio (FCR): 7.27

Relative Citation ratio (RCR): 1.12

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Green, Accepted