title: Serotonin 6 receptor gene and schizophrenia: case-control study and meta-analysis.
abstract: OBJECTIVE
  Several lines of evidence suggest that genetic alterations in serotonin 6 (5-HT6) receptors might be associated with the pathophysiology of schizophrenia. We sought to assess the relationship between genotype alterations in 5-HT6 receptors and schizophrenia both in a case-control study and a meta-analysis.
  
  
  METHODS
  We conducted an association study of the 5-HT6 receptor gene (HTR6) in Japanese patients with schizophrenia (n = 836) and controls (n = 857). Five tagging single-nucleotide polymorphisms (SNPs), including rs1805054 (C267T) in HTR6, were selected. In addition, we carried out a meta-analysis between rs1805054, which has been examined in other studies, and schizophrenia, searching PubMed through August 2011.
  
  
  RESULTS
  There were no significant associations between the tagging SNPs in HTR6 and schizophrenia in any of the genotype models in both the simple and the multiple logistic regression analyses correcting for potential confounds. Similarly, no significant association was found in the all-marker haplotype multiple logistic regression analysis (p = 0.491). Moreover, in the meta-analysis of rs1805054, drawing data from five studies, including our own (schizophrenia patients = 1366, controls = 1376), rs1805054 was also not associated with schizophrenia.
  
  
  CONCLUSIONS
  Our results indicate that tagging SNPs in HTR6 may not play a role in the pathophysiology of schizophrenia.
authors: Division of Psychiatry Research, The Zucker Hillside Hospital, Glen Oaks, NY 11004, USA. tarok@fujita-hu.ac.jp
authors: Taro
authors: T
authors: Kishi
authors: Yasuhisa
authors: Y
authors: Fukuo
authors: Tomo
authors: T
authors: Okochi
authors: Kunihiro
authors: K
authors: Kawashima
authors: Tsuyoshi
authors: T
authors: Kitajima
authors: Toshiya
authors: T
authors: Inada
authors: Norio
authors: N
authors: Ozaki
authors: Giovanna M
authors: GM
authors: Musso
authors: John M
authors: JM
authors: Kane
authors: Christoph U
authors: CU
authors: Correll
authors: Nakao
authors: N
authors: Iwata
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D011985:Receptors, Serotonin / Q000235:genetics*; D012559:Schizophrenia / Q000235:genetics*
chemical_list: D011985:Receptors, Serotonin; C097216:serotonin 6 receptor