期刊
SCHIZOPHRENIA RESEARCH
卷 89, 期 1-3, 页码 169-172出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.schres.2006.09.008
关键词
dysbindin; schizophrenia; cognitive decline; genetics
类别
资金
- NIMH NIH HHS [P30 MH060575] Funding Source: Medline
Objective: Intellectual decline is common in schizophrenia and predicts functional outcome. While many patients undergo intellectual decline that typically predates the onset of symptoms, few studies have investigated the underlying mechanism through which this occurs. The current study assessed the relationship between intellectual decline in schizophrenia and genetic variation in dysbindin-1 (DTNBP1). Methods: We assessed cognitive decline in 183 Caucasian patients with schizophrenia using a proxy measure of premorbid IQ with which current general cognitive ability (g) was compared. We then tested for a relationship between the risk haplotype identified in previous work (CTCTAC) and intellectual decline. Results: We found that carriers of the CTCTAC haplotype, demonstrated a significantly greater decline in IQ as compared with non-carriers (p=0.05). Conclusions: These data Suggest that DTNBP1 influences the severity of intellectual decline in schizophrenia and may represent one underlying cause for heterogeneity in cognitive course. (c) 2006 Elsevier B.V. All rights reserved.
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