Cerebral Arterial Stenoses and Stroke in Aicardi-Goutières Syndrome
Author Information
Author(s): Thiele Holger, du Moulin Marcel, Barczyk Katarzyna, George Christel, Schwindt Wolfram, Nürnberg Gudrun, Frosch Michael, Kurlemann Gerhard, Roth Johannes, Nürnberg Peter, Rutsch Frank
Primary Institution: Münster University Children's Hospital
Hypothesis
The study investigates the association of the Arg164X mutation in SAMHD1 with altered cytokine expression and cerebrovascular issues in Aicardi-Goutières syndrome.
Conclusion
The Arg164X mutation in SAMHD1 is linked to cerebrovascular stenoses and stroke, expanding the known features of Aicardi-Goutières syndrome.
Supporting Evidence
- The study identified a mutation in the SAMHD1 gene in all affected siblings.
- Intracerebral calcifications were confirmed in all patients via CT scans.
- Elevated pterin levels in cerebrospinal fluid were found in three of the four patients.
- Patient fibroblasts showed increased IL8 expression and reduced IFNB1 expression.
Takeaway
Four siblings with a rare disease had strokes and other health issues because of a gene mutation. This mutation affects how their body responds to inflammation.
Methodology
Genome-wide homozygosity mapping and next generation sequencing were used to identify the mutation in SAMHD1.
Potential Biases
Potential bias due to the consanguinity of the parents and the small number of affected individuals.
Limitations
The study is limited by the small sample size and the retrospective nature of some diagnostic confirmations.
Participant Demographics
Four adult siblings, two males and two females, born to consanguineous parents of Turkish origin.
Statistical Information
P-Value
p<0.024
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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