title: Molecular genetic case-control women investigation from the first Brazilian high-risk study on functional psychosis.
abstract: OBJECTIVE
  Data from epidemiological studies have demonstrated that genetics is an important risk factor for psychosis. The present study is part of a larger project, pioneer in Brazil, which has been conducted by other researchers who intend to follow a high-risk population (children) for the development of schizophrenia and bipolar disorder. In this first phase of the project, the objective was to investigate the distribution of four candidate genetic polymorphisms for functional psychosis (Ser9Gly DRD3, 5HTTLPR, the VNTR 3'-UTR SLC6A3 and Val66Met BDNF) in a case-control sample.
  
  
  METHODS
  A total of 105 women (58 with schizophrenia and 47 with bipolar disorder) and 62 gender-matched controls were investigated.
  
  
  RESULTS
  Allele and genotype distributions of all identified functional polymorphisms did not differ statistically between cases and controls.
  
  
  CONCLUSIONS
  These results suggest that the investigated polymorphisms were not related to susceptibility to functional psychoses in our Brazilian sample. These findings need to be validated in larger and independent studies.
authors.affiliation: Genetics and Pharmacogenetics Programme, Institute and Department of Psychiatry, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil. krelling@usp.br
authors.forename: Renata
authors.initials: R
authors.lastname: Krelling
authors.forename: Quirino
authors.initials: Q
authors.lastname: Cordeiro
authors.forename: Elisabete
authors.initials: E
authors.lastname: Miracca
authors.forename: Elisa Kijner
authors.initials: EK
authors.lastname: Gutt
authors.forename: Sandra
authors.initials: S
authors.lastname: Petresco
authors.forename: Ricardo Alberto
authors.initials: RA
authors.lastname: Moreno
authors.forename: Homero
authors.initials: H
authors.lastname: Vallada
mesh_terms: D000328:Adult; D001714:Bipolar Disorder / Q000235:genetics*; D001938:Brazil; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D011110:Polymorphism, Genetic / Q000235:genetics*; D012559:Schizophrenia / Q000235:genetics*