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Related Experiment Video

Updated: Jul 25, 2025

Array Comparative Genomic Hybridization Array CGH for Detection of Genomic Copy Number Variants
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7p22.2 Microduplication: A Pathogenic CNV?

Alessia Bauleo1, Alberto Montesanto2, Vincenza Pace1

  • 1BIOGENET, Medical and Forensic Genetics Laboratory, 87100 Cosenza, Italy.

Genes
|June 28, 2023
PubMed
Summary
This summary is machine-generated.

Microduplications in chromosome 7p22.2 are linked to neurodevelopmental disorders. This study details two cases, differentiating them from 7p22.1 microduplication syndrome and highlighting 7p22.2’s role.

Keywords:
7p227p22.2 microduplicationCNVSDK11array-CGH. 7p22.1minimal critical regionneurodevelopmental phenotypes

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Area of Science:

  • Genetics
  • Human Genetics
  • Molecular Genetics

Background:

  • Partial duplication of chromosome 7 short arm (7p) is a rare chromosomal rearrangement with a variable phenotype.
  • High-resolution microarray technology has identified the 7p22.1 sub-band as causative of 7p22.1 microduplication syndrome.

Observation:

  • This study reports two unrelated patients with microduplications involving the 7p22.2 sub-band.
  • Both patients presented with neurodevelopmental disorders but lacked malformations, distinguishing them from 7p22.1 microduplication syndrome.

Findings:

  • Detailed characterization of the clinical phenotypes in these two patients.
  • The findings provide insight into the specific clinical presentation associated with 7p22.2 microduplication.

Implications:

  • Supports a distinct role for the 7p22.2 sub-band in the 7p22 microduplication syndrome.
  • Contributes to a better understanding of genotype-phenotype correlations in chromosome 7p duplications.