Yi Dai1, Yuquan Wu2, Yansheng Li3. 1. Department of Neurology, 117 Hospital of PLA Hangzhou, Zhejiang, China. 2. Department of Gerontology, 117 Hospital of PLA Hangzhou, Zhejiang, China. 3. Department of Neurology, Renji Hospital Affiliated to Shanghai Jiao Tong University Shanghai, China.
Abstract
OBJECTIVE: The aim of this study was to explore the genetic association of cyclooxygenase-2 (COX2) gene promoter region polymorphisms with Parkinson's disease (PD) susceptibility in Chinese Han population. METHODS: The genotyping of COX2 gene polymorphisms was conducted by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 122 patients with PD and 120 healthy persons. The association strength of gene polymorphism with disease was measured by odds ratio (OR) and 95% confidence interval (95% CI) calculated using χ(2) test which also evaluated the Hardy-Weinberg equilibrium (HWE) of gene polymorphism in controls. The linkage disequilibrium and haplotype were also analyzed as evidence in the analysis of association. RESULTS: On condition that the genotypes distributions of COX2 -1290A>G, -1195G>A, -765G>C in the control group all conformed to HWE, however, only the homozygous genotype AA of -1195G>A polymorphism showed an association with PD (OR=0.432, 95% CI=0.196-0.950). In addition, in haplotype analysis, G-A-C haplotype frequency in cases was significantly lower than the controls, compared with the common haplotype A-G-G (P=0.031, OR=0.375, 95% CI=0.149-0.940). CONCLUSIONS: COX2 -1195G>A polymorphism might play a protective role in the onset of PD and G-A-C haplotype in this three promoter region polymorphisms also showed a negative association.
OBJECTIVE: The aim of this study was to explore the genetic association of cyclooxygenase-2 (COX2) gene promoter region polymorphisms with Parkinson's disease (PD) susceptibility in Chinese Han population. METHODS: The genotyping of COX2 gene polymorphisms was conducted by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 122 patients with PD and 120 healthy persons. The association strength of gene polymorphism with disease was measured by odds ratio (OR) and 95% confidence interval (95% CI) calculated using χ(2) test which also evaluated the Hardy-Weinberg equilibrium (HWE) of gene polymorphism in controls. The linkage disequilibrium and haplotype were also analyzed as evidence in the analysis of association. RESULTS: On condition that the genotypes distributions of COX2 -1290A>G, -1195G>A, -765G>C in the control group all conformed to HWE, however, only the homozygous genotype AA of -1195G>A polymorphism showed an association with PD (OR=0.432, 95% CI=0.196-0.950). In addition, in haplotype analysis, G-A-C haplotype frequency in cases was significantly lower than the controls, compared with the common haplotype A-G-G (P=0.031, OR=0.375, 95% CI=0.149-0.940). CONCLUSIONS:COX2 -1195G>A polymorphism might play a protective role in the onset of PD and G-A-C haplotype in this three promoter region polymorphisms also showed a negative association.
Authors: M H Polymeropoulos; C Lavedan; E Leroy; S E Ide; A Dehejia; A Dutra; B Pike; H Root; J Rubenstein; R Boyer; E S Stenroos; S Chandrasekharappa; A Athanassiadou; T Papapetropoulos; W G Johnson; A M Lazzarini; R C Duvoisin; G Di Iorio; L I Golbe; R L Nussbaum Journal: Science Date: 1997-06-27 Impact factor: 47.728
Authors: Selvaraju Veeriah; Barry S Taylor; Shasha Meng; Fang Fang; Emrullah Yilmaz; Igor Vivanco; Manickam Janakiraman; Nikolaus Schultz; Aphrothiti J Hanrahan; William Pao; Marc Ladanyi; Chris Sander; Adriana Heguy; Eric C Holland; Philip B Paty; Paul S Mischel; Linda Liau; Timothy F Cloughesy; Ingo K Mellinghoff; David B Solit; Timothy A Chan Journal: Nat Genet Date: 2009-11-29 Impact factor: 38.330