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Related Concept Videos

Sex-linked Disorders01:43

Sex-linked Disorders

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Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
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Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
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Related Experiment Video

Updated: Jan 11, 2026

A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
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Neurological Insights into 16p11.2- And 22q11.2-Related Disorders: A Mini-Review.

Yung-Hsiu Lu1, Yann-Jang Chen1,2,3, Shan-Ju Lin4

  • 1Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan.

Current Genomics
|November 14, 2025
PubMed
Summary

Copy Number Variations (CNVs) in 16p11.2 and 22q11.2 are linked to neurodevelopmental disorders. This review covers their neurological impacts, mechanisms, and potential treatments.

Keywords:
Autismcopy number variantepilepsyintellectual disabilityneurodevelopmental disorderneuropsychiatric disorderschizophrenia

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Area of Science:

  • Genetics
  • Neuroscience
  • Developmental Biology

Background:

  • Copy Number Variations (CNVs) at 16p11.2 and 22q11.2 are associated with various neurodevelopmental and neuropsychiatric disorders.
  • Conditions linked to these CNVs include autism spectrum disorder, ADHD, epilepsy, and schizophrenia.
  • The precise genetic and molecular mechanisms driving these neurological phenotypes are not fully understood.

Purpose of the Study:

  • To provide an updated mini-review of the neurological aspects of 16p11.2 and 22q11.2 CNVs.
  • To highlight clinical insights and pathogenetic mechanisms.
  • To discuss potential therapeutic strategies for these disorders.

Main Methods:

  • Literature review of recent advances in experimental technology and bioinformatics.
  • Synthesis of current knowledge on the neurobiology of 16p11.2 and 22q11.2 related disorders.
  • Focus on clinical presentations and underlying mechanisms.

Main Results:

  • CNVs at 16p11.2 and 22q11.2 are significant risk factors for a spectrum of neurological conditions.
  • Advances in technology have improved understanding of gene interactions and neurobiological pathways.
  • The complexity of gene networks at these loci contributes to varied clinical outcomes.

Conclusions:

  • Understanding the neurobiology of these CNVs is crucial for diagnosing and treating associated disorders.
  • Further research into mechanistic insights may reveal novel therapeutic targets.
  • This review consolidates current knowledge and points towards future directions in the field.