Association analyses of the neuregulin 1 gene with schizophrenia and manic psychosis in a Hispanic population

Acta Psychiatrica Scandinavica
Consuelo Walss-BassMichael A Escamilla

Abstract

This study used the population of the Central Valley of Costa Rica (CVCR) and phenotyping strategies alternative to DSMIV classifications to investigate the association of neuregulin 1 with schizophrenia. Using 134 family trios with a history of psychosis, we genotyped six of the seven markers originally identified to be associated with schizophrenia in Iceland. The neuregulin Icelandic haplotype was not associated with schizophrenia in the CVCR population. However, a novel haplotype was found to be overrepresented in subjects with functional psychosis (global P-value > 0.05). Stratification of the sample by history of mania suggests that this haplotype may be preferentially over-transmitted to persons with a history of manic psychosis. These results suggest that the neuregulin 1 gene is unlikely to play a major role in predisposing to schizophrenia in the CVCR. Further studies in the CVCR and other Latin American populations should be performed in order to corroborate these findings.

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Citations

Jul 25, 2009·Psychopharmacology·Emilio Fernandez-EspejoFernando Rodriguez de Fonseca
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