Blood-Based Gene Expression in children with Autism spectrum disorder

Comparative gene expression profiling analysis is useful in discovering differentially expressed genes associated with various diseases, including mental disorders. Autism spectrum disorder (ASD) is a severe neuropsychiatric disorder which has complex pathobiology with profound influences of genetic factors in its development. Although numerous autism susceptible genes were identified, the etiology of autism is not fully explained. The study aimed to examine gene expression profiling in peripheral blood from 60 individuals divided into two groups: children with ASD and age and gendermatched healthy subjects (ASD control). A genomewide sequencing of copy DNA molecules was conducted to obtain information for quantitative expression of all genes subject to this study and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathwaybased analysis was used to further understand genes’ biological functions. Based on the conducted expression analysis 23 differentially expressed genes and 21 KEGG signaling pathways with statistical significant change were identified. Bloodbased comparative gene expression profiling analysis is useful in discovering genetic markers associated with ASD. Our data will provide a valuable resource for discovery purposes and for comparison to other gene expressionbased, genomewide studies and other functional data.