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Visual and verbal learning and memory in cystinosis.
Alexandra M Frankel1, Doris A Trauner1
1Department of Neurosciences, University of California, San Diego School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093-0935, USA.
Brain and Cognition
|June 25, 2019
Summary
Long-term cysteamine treatment for cystinosis may preserve cognitive functions. Adults with cystinosis showed no significant visual or verbal learning deficits, suggesting effective disease management spares memory.
Area of Science:
- Neuroscience
- Genetics
- Metabolic Disorders
Background:
- Cystinosis is a rare genetic lysosomal storage disorder.
- Cystine accumulation affects multiple organs, including the central nervous system (CNS).
- Previous studies indicated cognitive deficits in children with cystinosis, particularly in visual learning and memory.
Purpose of the Study:
- To assess visual and verbal learning and memory in adults with cystinosis.
- To evaluate the impact of long-term cysteamine treatment on cognitive function.
- To investigate the dissociation between visual and verbal memory in treated adult cystinosis patients.
Main Methods:
- A cohort of 15 adults with cystinosis (mean age 30.2 years) was assessed.
- Participants underwent standardized tests for visual learning and memory.
- Participants underwent standardized tests for verbal learning and memory.
Main Results:
- Adults with cystinosis demonstrated no significant deficits in either verbal or visual learning and memory.
- A trend towards better performance was observed in verbal assessments compared to visual ones.
- These findings suggest relative sparing of cognitive functions with early and continuous treatment.
Conclusions:
- Early and consistent cysteamine treatment appears to preserve visual learning and memory in adults with cystinosis.
- Proper clinical management is crucial for mitigating long-term cognitive consequences of cystinosis.
- The study highlights the importance of ongoing therapeutic interventions for lysosomal storage disorders.
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