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Updated: May 13, 2026

Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
Comprehensive analysis of copy number variation in monozygotic twins discordant for bipolar disorder or schizophrenia
Rachael J Bloom1, Anna K Kähler, Ann L Collins
1Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7264, USA.
Abstract:
Copy number variation plays a clear role in the etiology of many psychiatric disorders, particularly schizophrenia. We performed array-CGH to look for copy number variants between five pairs of monozygotic twins discordant for bipolar disorder or schizophrenia. Our study found no differences in copy number variants between the sets of twins. Although alluring, realistic accounting for heterogeneity and chimerism highlights the technological limitations in studying monozygotic twins discordant for psychiatric disorders.
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