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Leptomeningeal lipid storage patterns in Fabry disease
M Elleder1, H Christomanou, B Kustermann-Kuhn
11st Institute of Pathology, School of Medicine, Charles University, Prague, Czech Republic.
Acta Neuropathologica
|January 1, 1994
Summary
Two patterns of leptomeningeal storage in Fabry disease were identified, reflecting visceral storage patterns. The external arachnoidal epithelium shows particular susceptibility to lipid accumulation.
Area of Science:
- Neurology
- Genetics
- Cell Biology
Background:
- Fabry disease is a rare genetic disorder.
- Lysosomal accumulation of globotriaosylceramide (Gb3) occurs in various cell types.
- Leptomeningeal involvement in Fabry disease is not fully understood.
Purpose of the Study:
- To investigate the patterns of leptomeningeal storage in Fabry disease.
- To correlate leptomeningeal storage patterns with visceral storage phenotypes.
Main Methods:
- Histopathological examination of leptomeningeal tissue.
- Analysis of lipid storage in different cell types within the leptomeninges.
- Correlation with clinical phenotypes and visceral organ involvement.
Main Results:
- Two distinct patterns of leptomeningeal storage were observed: generalized and localized.
- Generalized storage affected all main leptomeningeal cell types in classical phenotypes.
- Localized storage, predominantly in the external arachnoidal epithelium, was seen in a variant phenotype.
Conclusions:
- Leptomeningeal storage patterns in Fabry disease mirror visceral storage patterns.
- The external arachnoidal epithelium is particularly susceptible to lipid storage in Fabry disease.
- This susceptibility may be due to a higher sustained lysosomal lipid load.