title: No association found between the promoter variants of ADRA1A and schizophrenia in the Chinese population.
abstract: Schizophrenia is a chronic psychiatry disorder with a strong genetic component. A recent association study of alpha(1A)-adrenoceptor gene (ADRA1A) involving an isolated Spanish population, focusing on the promoter region of the ADRA1A, genotyped eight single SNPs at the promoter region of ADRA1A and found that two SNPs, -563G/A and -9625G/A, were associated with schizophrenia and schizoaffective disorders. We were interested in the two positive sites reported and selected five variants among the promoter region of ADRA1A, namely -563G/A, -9625G/A, -2760C/A, -4155G/C and a new substitution we detected between -508bp and -530bp upstream of the translation initiation site. Our sample consisted of 480 schizophrenia and 480 control subjects. All recruits were Han Chinese in Shanghai origin. However, neither individual SNP nor any haplotype was associated with schizophrenia in our study. These results suggest that the variants among the promoter of ADRA1A gene are unlikely to play a major role in the susceptibility to schizophrenia in the Chinese population.
authors.affiliation: Bio-X Life Science Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, PR China.
authors.forename: Ke
authors.initials: K
authors.lastname: Huang
authors.forename: Yongyong
authors.initials: Y
authors.lastname: Shi
authors.forename: Wei
authors.initials: W
authors.lastname: Tang
authors.forename: Ruqi
authors.initials: R
authors.lastname: Tang
authors.forename: Shengzhen
authors.initials: S
authors.lastname: Guo
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Xu
authors.forename: Junwei
authors.initials: J
authors.lastname: Meng
authors.forename: Xingwang
authors.initials: X
authors.lastname: Li
authors.forename: Guoying
authors.initials: G
authors.lastname: Feng
authors.forename: Lin
authors.initials: L
authors.lastname: He
mesh_terms: D000328:Adult; D044466:Asian People / Q000235:genetics*; D002681:China / Q000453:epidemiology; D035061:Control Groups; D004252:DNA Mutational Analysis; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics; D014644:Genetic Variation / Q000235:genetics*; D005838:Genotype; D006239:Haplotypes / Q000235:genetics; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D011110:Polymorphism, Genetic / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D011401:Promoter Regions, Genetic / Q000235:genetics*; D018340:Receptors, Adrenergic, alpha-1 / Q000235:genetics*; D012559:Schizophrenia / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics*
chemical_list: C547713:ADRA1A protein, human; D018340:Receptors, Adrenergic, alpha-1