In this study authors searched for chromosomal aberrations in 71 children with developmental delay or idiopathic mental retardation using Human Genome CGH Microarray Kits 4×44K and 8×60K (Agilent Technologies, USA). Microdeletions and microduplications, as well as CNV, which may be related to intellectual disability and associated with regions of known hereditary diseases or chromosomal syndromes were identified in 14 (20%) children (these patients are described in this article). During the analysis, candidate genes localized within the regions of aberrations and associated with development and functioning of nervous system were denoted.
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