期刊
NATURE GENETICS
卷 44, 期 12, 页码 1365-1369出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ng.2446
关键词
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资金
- National Institute of Mental Health (NIMH) [MH061399, MH077235]
- Lieber Center for Schizophrenia Research at Columbia University
- National Alliance for Research in Schizophrenia and Depression (NARSAD) Young Investigator Award
To evaluate evidence for de novo etiologies in schizophrenia, we sequenced at high coverage the exomes of families recruited from two populations with distinct demographic structures and history. We sequenced a total of 795 exomes from 231 parent-proband trios enriched for sporadic schizophrenia cases, as well as 34 unaffected trios. We observed in cases an excess of de novo nonsynonymous single-nucleotide variants as well as a higher prevalence of gene-disruptive de novo mutations relative to controls. We found four genes (LAMA2, DPYD, TRRAP and VPS39) affected by recurrent de novo events within or across the two populations, which is unlikely to have occurred by chance. We show that de novo mutations affect genes with diverse functions and developmental profiles, but we also find a substantial contribution of mutations in genes with higher expression in early fetal life. Our results help define the genomic and neural architecture of schizophrenia.
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