期刊
SCHIZOPHRENIA RESEARCH
卷 139, 期 1-3, 页码 229-236出版社
ELSEVIER
DOI: 10.1016/j.schres.2012.05.015
关键词
Schizophrenia; Copy number variation; Genetics; Deletion; Duplication; Rearrangement
类别
资金
- National Health Research Institutes
- National Science Council, Taiwan
- National Tsing Hua University
Schizophrenia is a complex mental disorder with high degree of genetic influence in its etiology. Several recent studies revealed that copy number variations (CNVs) of genomic DNA contributed significantly to the genetic architecture of sporadic schizophrenia. This study aimed to investigate whether CNVs also contribute to the familial forms of schizophrenia. Using array-based comparative genomic hybridization technology, we searched for pathogenic CNV associated with schizophrenia in a sample of 60 index cases from multiplex schizophrenia families. We detected three inherited CNVs that were associated with schizophrenia in three families, including a microdeletion of similar to 4.4 Mb at chromosome 6q12-q13, a microduplication of similar to 1 Mb at chromosome 18q12.3, and an interstitial duplication of similar to 5 Mb at chromosome 15q11.2-q13.1. Our data indicate that CNVs contribute to the genetic underpinnings of the familial forms of schizophrenia as well as of the sporadic form. As 15q11-13 duplication is a well-known recurrent CNV associated with autism in the literature, the detection of the 15q11.2-q13.1 duplication in our schizophrenia patients provides additional support to other studies reporting that schizophrenia is part of the clinical spectrum of 15q11-q13 duplication syndrome. (C) 2012 Elsevier B. V. All rights reserved.
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