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Central nervous system involvement in nephropathic cystinosis
D G Vogel1, M H Malekzadeh, M E Cornford
1Department of Pathology, UCLA Medical Center, 90024.
Journal of Neuropathology and Experimental Neurology
|November 1, 1990
Summary
Nephropathic cystinosis, a genetic disorder, leads to cystine crystal buildup in organs. Even with transplants, severe neurological complications can be life-threatening.
Area of Science:
- Genetics and rare diseases
- Lysosomal storage disorders
- Pathology
Background:
- Nephropathic cystinosis is an inherited metabolic disorder affecting multiple organs.
- Impaired cystine transport causes cystine crystal accumulation.
- Advancements in treatment allow patients to reach adulthood.
Observation:
- Autopsy of a 28-year-old male revealed widespread cystine crystal deposits.
- Severe cerebral pathology included cystic necrosis and calcification.
- Electron microscopy showed crystals within brain pericytes and white matter cells.
Findings:
- Cystinosis causes significant neurological deficits due to brain crystal deposition.
- Organ damage extends beyond the kidneys, impacting the central nervous system.
- Neuropathological findings correlate with clinical presentation of profound neurologic deficits.
Implications:
- Renal transplantation improves survival but does not prevent neurological complications.
- Understanding cystine deposition in the brain is crucial for managing advanced cystinosis.
- Further research is needed to develop treatments targeting neurological manifestations.