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Novel mutation of the notch3 gene in arabic family with CADASIL

Saeed Bohlega1

  • 1Department of Neurosciences, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.

Neurology International
|November 5, 2011
PubMed

Insights

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is linked to NOTCH3 gene mutations. A novel G1790 C mutation in an Arabic family confirms NOTCH3

Area of Science:

  • Genetics
  • Neurology
  • Vascular Biology

Background:

  • Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) is a hereditary cerebrovascular disorder.
  • NOTCH3 gene mutations are the known cause of CADASIL, typically involving cysteine residue alterations in EGF-like repeats.
  • Previous studies have identified various NOTCH3 mutations across different ethnic groups.

Purpose of the Study:

  • To report a novel NOTCH3 gene mutation associated with CADASIL in an Arabic family.
  • To investigate the genetic basis of CADASIL in a previously underrepresented ethnic population.

Main Methods:

  • Genetic analysis of the NOTCH3 gene in an affected Arabic family.
  • Identification and characterization of a specific mutation in Exon 11.

Main Results:

  • A novel mutation, G1790 C, was identified in Exon 11 of the NOTCH3 gene.
  • This represents the first reported NOTCH3 mutation in Arabic patients with CADASIL.
  • The mutation type aligns with previously described alterations in NOTCH3.

Conclusions:

  • The G1790 C mutation in the NOTCH3 gene is associated with CADASIL pathogenesis.
  • This finding underscores the role of NOTCH3 mutations in CADASIL across diverse ethnic backgrounds.
  • Highlights the importance of genetic screening in various populations for CADASIL diagnosis.

Keywords:
Arabs.CADASILNOTCH3mutation

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