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Published on: December 20, 2017
Stroke and Fabry Disease: A Review of Literature
Vinayak Mishra1, Amit Banerjee1, Arohi B Gandhi1
1Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA.
Insights
Fabry disease, an X-linked disorder, causes cerebrovascular disease due to alpha-galactosidase A deficiency. Early screening and enzyme replacement therapy are crucial for preventing stroke in affected individuals.
Area of Science:
- Genetics and rare diseases
- Neurology
- Biochemistry
Background:
- Fabry disease is an X-linked lysosomal storage disorder.
- It results from alpha-galactosidase A (GLA) gene mutations, causing enzyme deficiency.
- This leads to globotriaosylceramide accumulation and neurovascular complications, including early-onset cerebrovascular disease.
Purpose of the Study:
- To review the pathophysiology of cerebrovascular disease in Fabry patients.
- To discuss current knowledge on neuroradiology, treatment, and prognosis.
- To highlight the need for further research on screening and therapy effectiveness.
Main Methods:
- Literature review of Fabry disease and cerebrovascular complications.
- Analysis of pathophysiology, including enzyme deficiency and substrate accumulation.
- Evaluation of diagnostic tools like MRI and therapeutic strategies such as enzyme replacement therapy.
Main Results:
- Cerebrovascular disease is a significant complication in Fabry patients, occurring at a young age.
- MRI is essential for detecting characteristic white matter lesions.
- Pathophysiology involves globotriaosylceramide accumulation in vascular cells.
Conclusions:
- Fabry disease poses a high risk for early cerebrovascular events.
- Further research is needed on universal screening for young stroke patients and the efficacy of enzyme replacement therapy in stroke prevention.
Abstract:
Fabry disease is an X-linked lysosomal storage disorder caused by a mutation in the alpha-galactosidase A (GLA) gene, leading to the deficiency of alpha-galactosidase A enzyme. The natural history of the affected patients (both males and females) includes neurovascular complications, such as cerebrovascular disease at a relatively young age. The pathophysiology behind the vascular involvement is primarily attributed to the accumulation of globotriaosylceramide and its derivatives in the vascular endothelium and vascular smooth muscle cells. MRI is the gold standard radiological investigation to detect the white matter lesions characteristic of Fabry disease's neurological involvement. More studies should focus on the utility of universally screening patients with young stroke for Fabry disease and the effectiveness of enzyme replacement therapy to prevent stroke. This review offers a synopsis of the current knowledge of the pathophysiology, neuroradiology, treatment, and prognosis of cerebrovascular disease in Fabry patients.
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