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Association study between schizophrenia and the DISC1 gene polymorphism

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Author(s): Ali Mohammad Foroughmand | Maryam Haidari | Hamid Galehdari | Atefeh Pooryasin | Seyed Reza Kazeminejad | Shiva Hosseini | Nahid Khajeh-Mogehi

Journal: Medical Journal of the Islamic Republic of Iran
ISSN 1016-1430

Volume: 24;
Issue: 1;
Start page: 29;
Date: 2010;
Original page

Keywords: association study | schizophrenia | DISC1 gene | rs821616 | single nucleotide | polymorphism.

ABSTRACT
  Abstract   Background: The disrupted-in-schizophrenia 1 (DISC1) gene, on the chromosome   position 1q42, was initially identified at the breakpoint of a balanced translocation,   t(1,11)(q42.1;q14.3), which segregated with major mental disorders in a large   Scottish family.   Methods: Our samples included 200 unrelated patients diagnosed with Schizophrenia   on the basis of DSM-IV criteria and 200 normal controls, which were gathered   from Iran. The allele and genotype frequencies of the polymorphism were determined   using Polymerase Chain Reaction-Restricted Fragment Length Polymorphism   (PCR-RFLP) and the data were analyzed by Logistic Regression test.   Results: In this study we genotyped the rs821616 polymorphism (Serin704Cystein)   located within exon 11 of the DISC1 gene. The samples were matched on the basis   of sex and ethnicity. We used the case control study to determine the possible association between the ser704cys (rs821616) polymorphism and Schizophrenia. Analysis of data in the samples, revealed no association between the rs821616 polymorphism and Schizophrenia (OR= 0.697, 95% CI= 0.47-1.033, P=0.072).   Conclusion: In this study we did not find any association between the rs821616   SNPand schizophrenia.  
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