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Updated: Jun 15, 2026

Technical Demonstration of Whole Genome Array Comparative Genomic Hybridization
16:37

Technical Demonstration of Whole Genome Array Comparative Genomic Hybridization

Published on: August 6, 2008

Application of array-based comparative genome hybridization in children with developmental delay or mental

Jao-Shwann Liang1, Keiko Shimojima, Toshiyuki Yamamoto

  • 1International Research and Educational Institute for Integrated Medical Sciences, Tokyo Women's Medical University, Taiwan. jao59@hotmail.com

Pediatrics and Neonatology
|January 27, 2009
PubMed

Insights

Array comparative genomic hybridization (array CGH) significantly improves the detection of submicroscopic chromosomal abnormalities in children with developmental delay or mental retardation (DD/MR). This advanced technique enhances diagnostic yield for these complex genetic conditions.

Area of Science:

  • Genetics
  • Pediatric Neurology
  • Medical Diagnostics

Background:

  • Developmental delay or mental retardation (DD/MR) presents diagnostic challenges in child neurology.
  • Chromosomal imbalances are a significant, yet often undetected, cause of DD/MR.
  • Submicroscopic chromosomal abnormalities require advanced detection methods beyond conventional cytogenetics.

Purpose of the Study:

  • To review the utility of array comparative genomic hybridization (array CGH) in diagnosing idiopathic DD/MR.
  • To highlight array CGH's superiority over traditional methods for detecting submicroscopic chromosomal aberrations.

Main Methods:

  • Review of recent studies investigating array CGH in pediatric patients with idiopathic DD/MR.
  • Focus on array CGH's capability to identify deletions and duplications.

Main Results:

  • Array CGH demonstrates superior performance in detecting submicroscopic chromosomal imbalances.
  • This technique improves the diagnostic detection rate for small chromosomal abnormalities in children with DD/MR.

Conclusions:

  • Array CGH is a valuable tool for etiological diagnosis in children with idiopathic DD/MR.
  • It offers enhanced diagnostic accuracy for submicroscopic chromosomal abnormalities, aiding child neurologists.

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