Mosaic copy number variation in schizophrenia.

Eur J Hum Genet
Authors
Keywords
Abstract

Recent reports suggest that somatic structural changes occur in the human genome, but how these genomic alterations might contribute to disease is unknown. Using samples collected as part of the International Schizophrenia Consortium (schizophrenia, n=3518; control, n=4238) recruited across multiple university research centers, we assessed single-nucleotide polymorphism genotyping arrays for evidence of chromosomal anomalies. Data from genotyping arrays on each individual were processed using Birdsuite and analyzed with PLINK. We validated potential chromosomal anomalies using custom nanostring probes and quantitative PCR. We estimate chromosomal alterations in the schizophrenia population to be 0.42%, which is not significantly different from controls (0.26%). We identified and validated a set of four extremely large (>10 Mb) chromosomal anomalies in subjects with schizophrenia, including a chromosome 8 trisomy and deletion of the q arm of chromosome 7. These data demonstrate that chromosomal anomalies are present at low frequency in blood cells of both control and schizophrenia subjects.

Year of Publication
2013
Journal
Eur J Hum Genet
Volume
21
Issue
9
Pages
1007-11
Date Published
2013 Sep
ISSN
1476-5438
URL
DOI
10.1038/ejhg.2012.287
PubMed ID
23321615
PubMed Central ID
PMC3746263
Links
Grant list
G0800509 / Medical Research Council / United Kingdom