期刊
MOLECULAR PSYCHIATRY
卷 11, 期 9, 页码 815-836出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.mp.4001857
关键词
schizophrenia; heterogeneity; pleiotropy; subtypes; genetics; endophenotypes
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.
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