Copy number variants in autism spectrum disorders

Area of Science:

• Genetics
• Neurodevelopmental Disorders
• Genomics

Background:

• Autism spectrum disorder (ASD) has a complex genetic component.
• Recent advances in genetic studies have generated substantial molecular data for ASD research.
• Structural genomic variations are increasingly recognized as significant contributors to ASD pathogenesis.

Purpose of the Study:

• To review accumulated evidence on genetic events associated with ASD.
• To summarize current knowledge on the clinical relevance of copy number variants (CNVs) in ASD.
• To highlight the role of genomic variation in neurodevelopmental disorders.

Main Methods:

• Review of recent genetic studies and molecular data in ASD.
• Analysis of evidence supporting structural genomic variation in ASD pathogenesis.
• Examination of findings from whole-genome screening techniques like array comparative genome hybridization and SNP analysis.

Main Results:

• Copy number variants (CNVs) are the most common type of structural variation.
• CNVs are implicated as important contributors to the pathogenesis of neurodevelopmental disorders, including ASD.
• Sophisticated genomic screening techniques have identified numerous ASD susceptibility loci.

Conclusions:

• Structural genomic variations, especially CNVs, play a critical role in ASD.
• Understanding CNVs is crucial for advancing ASD research and clinical applications.
• Continued investigation into genetic factors is essential for unraveling ASD etiology.