BACKGROUND: An Icelandic study showed a significant positive association between phosphodiesterase 4D (PDE4D) gene variants and stroke. However, subsequent studies reported conflicting results, possibly due to small sample sizes and the heterogeneity of the studies. METHOD: We performed a meta-analysis on 6 SNPs of the PDE4D gene to investigate the association between this gene and ischemic stroke by integrating the results of previous studies, comprising 11,834 cases and 15,233 controls. A pooled genotypic odds ratio (OR) for each SNP was determined under 3 genetic models (i.e. dominant, recessive, and codominant) using both fixed- and random-effects models with consideration for heterogeneity and publication bias across studies. RESULTS: Among the SNPs included in this study, SNP56 (rs702553) showed the most significant association with ischemic stroke in a meta-analysis comprised of 7 homogenous studies. The overall OR of the TT genotype compared to the AA genotype was 1.29 (95% CI 1.03-1.61; p = 0.022). For SNP83 (rs966221), a protective effect of the ancestral allele T was observed only in Asian populations (ORTT 0.79, 95% CI 0.69-0.90; p = 0.0005). This meta-analysis revealed a significant association of PDE4D gene variants with the risk of ischemic stroke, and further investigations are warranted to evaluate possible ethnic-specific effects.
BACKGROUND: An Icelandic study showed a significant positive association between phosphodiesterase 4D (PDE4D) gene variants and stroke. However, subsequent studies reported conflicting results, possibly due to small sample sizes and the heterogeneity of the studies. METHOD: We performed a meta-analysis on 6 SNPs of the PDE4D gene to investigate the association between this gene and ischemic stroke by integrating the results of previous studies, comprising 11,834 cases and 15,233 controls. A pooled genotypic odds ratio (OR) for each SNP was determined under 3 genetic models (i.e. dominant, recessive, and codominant) using both fixed- and random-effects models with consideration for heterogeneity and publication bias across studies. RESULTS: Among the SNPs included in this study, SNP56 (rs702553) showed the most significant association with ischemic stroke in a meta-analysis comprised of 7 homogenous studies. The overall OR of the TT genotype compared to the AA genotype was 1.29 (95% CI 1.03-1.61; p = 0.022). For SNP83 (rs966221), a protective effect of the ancestral allele T was observed only in Asian populations (ORTT 0.79, 95% CI 0.69-0.90; p = 0.0005). This meta-analysis revealed a significant association of PDE4D gene variants with the risk of ischemic stroke, and further investigations are warranted to evaluate possible ethnic-specific effects.
Authors: Håkan Lövkvist; Sandra Olsson; Peter Höglund; Olle Melander; Christina Jern; Marketa Sjögren; Gunnar Engström; J Gustav Smith; Bo Hedblad; Gunnar Andsberg; Hossein Delavaran; Katarina Jood; Ulf Kristoffersson; Holger Luthman; Bo Norrving; Arne Lindgren Journal: Eur J Hum Genet Date: 2012-01-25 Impact factor: 4.246
Authors: Paul L Auer; Mike Nalls; James F Meschia; Bradford B Worrall; W T Longstreth; Sudha Seshadri; Charles Kooperberg; Kathleen M Burger; Christopher S Carlson; Cara L Carty; Wei-Min Chen; L Adrienne Cupples; Anita L DeStefano; Myriam Fornage; John Hardy; Li Hsu; Rebecca D Jackson; Gail P Jarvik; Daniel S Kim; Kamakshi Lakshminarayan; Leslie A Lange; Ani Manichaikul; Aaron R Quinlan; Andrew B Singleton; Timothy A Thornton; Deborah A Nickerson; Ulrike Peters; Stephen S Rich Journal: JAMA Neurol Date: 2015-07 Impact factor: 18.302
Authors: Eric J Heyer; Joanna L Mergeche; Justin T Ward; Hani R Malone; Christopher Kellner; Samuel S Bruce; E Sander Connolly Journal: Neurosurgery Date: 2013-11 Impact factor: 4.654
Authors: Sunaina Yadav; Nazeeha Hasan; Thomas Marjot; Muhammad S Khan; Kameshwar Prasad; Paul Bentley; Pankaj Sharma Journal: PLoS One Date: 2013-03-07 Impact factor: 3.240