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Title: Multicentric genome-wide association study for primary spontaneous pneumothorax
Authors: Sousa, I.
Abrantes, P
Francisco, V.
Teixeira, G
Monteiro, M
Neves, J
Norte, A.
Rebelo, Cordeiro C
Moura, E Sá J
Santos, P
Oliveira, Manuela M.
Sousa, S
Fradinho, M
Malheiro, F.
Negrão, L.
Feijó, S.
Oliveira, SA
Editors: Zaykin, Dmitri
Keywords: Multicentric Genome-Wide
Primary Spontaneous Pneumothorax
Issue Date: 20-May-2016
Publisher: PLoS One
Citation: Sousa, I.; Abrantes, P; Francisco, V.; Teixeira, G; Monteiro, M; Neves, J; Norte, A.; Rebelo, Cordeiro C; Moura, E Sá J; Santos, P; Oliveira, Manuela M.; Sousa, S; Fradinho, M; Malheiro, F.; Negrão, L.; Feijó, S.; Oliveira, SA. "Multicentric genome-wide association study for primary spontaneous pneumothorax".- PLoS One, 11(5):e0156103, eCollection 2016. doi:10.1371/journal.pone.0156103
Abstract: Despite elevated incidence and recurrence rates for Primary Spontaneous Pneumothorax (PSP), little is known about its etiology, and the genetics of idiopathic PSP remains unexplored. To identify genetic variants contributing to sporadic PSP risk, we conducted the first PSP genome-wide association study. Two replicate pools of 92 Portuguese PSP cases and of 129 age- and sex-matched controls were allelotyped in triplicate on the Affymetrix Human SNP Array 6.0 arrays. Markers passing quality control were ranked by relative allele score difference between cases and controls (|RASdiff|), by a novel cluster method and by a combined Z-test. 101 single nucleotide polymorphisms (SNPs) were selected using these three approaches for technical validation by individual genotyping in the discovery dataset. 87 out of 94 successfully tested SNPs were nominally associated in the discovery dataset. Replication of the 87 technically validated SNPs was then carried out in an independent replication dataset of 100 Portuguese cases and 425 controls. The intergenic rs4733649 SNP in chromosome 8 (between LINC00824 and LINC00977) was associated with PSP in the discovery (P = 4.07E-03, ORC[95% CI] = 1.88[1.22–2.89]), replication (P = 1.50E-02, ORC[95% CI] = 1.50[1.08–2.09]) and combined datasets (P = 8.61E-05, ORC[95% CI] = 1.65[1.29–2.13]). This study identified for the first time one genetic risk factor for sporadic PSP, but future studies are warranted to further confirm this finding in other populations and uncover its functional role in PSP pathogenesis.
Type: article
Appears in Collections:CIMA - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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