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Author van der Valk, R.J.P.; Duijts, L.; Timpson, N.J.; Salam, M.T.; Standl, M.; Curtin, J.A.; Genuneit, J.; Kerhof, M.; Kreiner-Moller, E.; Caceres, A.; Gref, A.; Liang, L.L.; Taal, H.R.; Bouzigon, E.; Demenais, F.; Nadif, R.; Ober, C.; Thompson, E.E.; Estrada, K.; Hofman, A.; Uitterlinden, A.G.; van Duijn, C.; Rivadeneira, F.; Li, X.; Eckel, S.P.; Berhane, K.; Gauderman, W.J.; Granell, R.; Evans, D.M.; St Pourcain, B.; McArdle, W.; Kemp, J.P.; Smith, G.D.; Tiesler, C.M.T.; Flexeder, C.; Simpson, A.; Murray, C.S.; Fuchs, O.; Postma, D.S.; Bonnelykke, K.; Torrent, M.; Andersson, M.; Sleiman, P.; Hakonarson, H.; Cookson, W.O.; Moffatt, M.F.; Paternoster, L.; Melen, E.; Sunyer, J.; Bisgaard, H.; Koppelman, G.H.; Ege, M.; Custovic, A.; Heinrich, J.; Gilliland, F.D.; Henderson, A.J.; Jaddoe, V.W.V.; de Jongste, J.C. url  doi
  Title Fraction of exhaled nitric oxide values in childhood are associated with 17q11.2-q12 and 17q12-q21 variants Type Journal Article
  Year (down) 2014 Publication The Journal of Allergy and Clinical Immunology Abbreviated Journal J Allergy Clin Immunol  
  Volume 134 Issue 1 Pages 46-55  
  Keywords Adolescent; Asthma/*genetics/metabolism/pathology; Biomarkers/metabolism; Breath Tests; Child; Child, Preschool; *Chromosomes, Human, Pair 17; Exhalation; Female; Genome-Wide Association Study; Haplotypes; Humans; Linkage Disequilibrium; Male; Molecular Chaperones/*genetics/metabolism; Neoplasm Proteins/*genetics/metabolism; Nitric Oxide/biosynthesis; Nitric Oxide Synthase Type II/*genetics/metabolism; *Polymorphism, Single Nucleotide; Quantitative Trait Loci; Risk; Airway inflammation; asthma phenotypes; biomarker; genetics; genome-wide association study  
  Abstract 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 x 10(-10)) and rs944722 in inducible nitric oxide synthase 2 (NOS2; P = 1.28 x 10(-9)), both of which are located at 17q11.2-q12, and rs8069176 near gasdermin B (GSDMB; P = 1.88 x 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.  
  Address Department of Pediatrics, Erasmus Medical Center, Rotterdam, The Netherlands. Electronic address:  
  Corporate Author EArly Genetics & Lifecourse Epidemiology (EAGLE) Consortium Thesis  
  Impact Factor 11,476 First Author van der Valk, R.J.P. Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Senior Author de Jongste, J.C.  
  ISSN 0091-6749 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:24315451; PMCID:PMC4334587 Approved no  
  Call Number Serial 47  
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