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Updated: Aug 30, 2026

Isolation and Cannulation of Cerebral Parenchymal Arterioles
Published on: May 23, 2016
[Hereditary cerebral arteriopathy]
W Rein Gustavsen1, Kristin Eiklid
1Nevrologisk avdeling, Sykehuset Østfold Fredrikstad, 1603 Fredrikstad. w-rei@online.no
Insights
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL) is a genetic neurovascular disorder. This study identified the R182C mutation in two Norwegian families, confirming its role in CADASIL.
Area of Science:
- Neurology
- Genetics
- Neuroscience
Background:
- Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL) is a hereditary neurovascular disease.
- It is caused by mutations in the NOTCH3 gene and presents with diverse neurological symptoms.
- Diagnostic methods include genetic testing, MRI, and skin biopsy.
Observation:
- Two Norwegian families with suspected CADASIL were studied.
- Eight family members exhibited symptoms consistent with the disease.
- Genetic analysis was performed on affected and unaffected individuals.
Findings:
- The R182C mutation in the NOTCH3 gene was identified in seven out of eight tested family members.
- This specific mutation was found in exon 4.
- Two asymptomatic brothers also carried the R182C mutation, suggesting incomplete penetrance or pre-symptomatic status.
Implications:
- This finding reinforces the R182C mutation as a cause of CADASIL.
- It highlights the importance of genetic screening in families with a history of stroke or dementia.
- The identification of asymptomatic carriers underscores the complexity of CADASIL and may inform future diagnostic and therapeutic strategies.
Abstract:
CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy) is a neurovascular disease caused by mutations of the notch3 gene, manifesting with strokes or stroke-like episodes, psychiatric symptoms, migraine and dementia. The diagnosis can be confirmed by screening exons of this gene. Involvement of the anterior temporal lobe and external capsule on MRI and presence of granular osmiophilic material on skin biopsy may help in diagnosis. We present two Norwegian families with eight members who have symptoms indicating CADASIL. The mutation R182C was demonstrated in exon 4 in seven; one refused gene testing. Two brothers without symptoms also tested positively for this gene mutation.
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