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Subtyping schizophrenia: implications for genetic research

Subtyping schizophrenia: implications for genetic research Phenotypic variability and likely extensive genetic heterogeneity have been confounding the search for the causes of schizophrenia since the inception of the diagnostic category. The inconsistent results of genetic linkage and association studies using the diagnostic category as the sole schizophrenia phenotype suggest that the current broad concept of schizophrenia does not demarcate a homogeneous disease entity. Approaches involving subtyping and stratification by covariates to reduce heterogeneity have been successful in the genetic study of other complex disorders, but rarely applied in schizophrenia research. This article reviews past and present attempts at delineating schizophrenia subtypes based on clinical features, statistically derived measures, putative genetic indicators, and intermediate phenotypes, highlighting the potential utility of multidomain neurocognitive endophenotypes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Molecular Psychiatry Springer Journals

Subtyping schizophrenia: implications for genetic research

Molecular Psychiatry , Volume 11 (9) – Jun 27, 2006

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References (355)

Publisher
Springer Journals
Copyright
Copyright © 2006 by Nature Publishing Group
Subject
Medicine & Public Health; Medicine/Public Health, general; Psychiatry; Neurosciences; Behavioral Sciences; Pharmacotherapy; Biological Psychology
ISSN
1359-4184
eISSN
1476-5578
DOI
10.1038/sj.mp.4001857
Publisher site
See Article on Publisher Site

Abstract

Phenotypic variability and likely extensive genetic heterogeneity have been confounding the search for the causes of schizophrenia since the inception of the diagnostic category. The inconsistent results of genetic linkage and association studies using the diagnostic category as the sole schizophrenia phenotype suggest that the current broad concept of schizophrenia does not demarcate a homogeneous disease entity. Approaches involving subtyping and stratification by covariates to reduce heterogeneity have been successful in the genetic study of other complex disorders, but rarely applied in schizophrenia research. This article reviews past and present attempts at delineating schizophrenia subtypes based on clinical features, statistically derived measures, putative genetic indicators, and intermediate phenotypes, highlighting the potential utility of multidomain neurocognitive endophenotypes.

Journal

Molecular PsychiatrySpringer Journals

Published: Jun 27, 2006

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