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Neonatal presentation of I-cell disease
The Journal of Pediatrics
|December 1, 1978
Insights
This study details two infants diagnosed with I-cell disease (ICD) who presented atypically, lacking common symptoms. Early diagnosis and understanding these presentation differences are crucial for managing this rare genetic disorder.
Area of Science:
- Biochemistry
- Genetics
- Pediatric Medicine
Background:
- I-cell disease (ICD), a rare lysosomal storage disorder, results from defective N-acetylglucosamine-1-phosphotransferase activity.
- This defect impairs lysosomal enzyme targeting, leading to enzyme accumulation in the extracellular matrix and cellular deficiencies.
Observation:
- Two pediatric patients diagnosed with I-cell disease in early infancy are presented.
- These patients exhibited fewer and less severe clinical and radiographic features typically associated with ICD.
Findings:
- The presented cases highlight variability in I-cell disease presentation during infancy and early childhood.
- Neonatal and early childhood manifestations of ICD can differ significantly from established descriptions.
Implications:
- Recognizing atypical presentations of I-cell disease is vital for timely diagnosis and intervention.
- Further research into the phenotypic spectrum of ICD may improve patient management and genetic counseling.
Abstract:
Two patients are described in whom the diagnosis of I-cell disease was established in early infancy. These patients lacked many of the clinical and radiographic features described in other children with this disorder. Differences between the neonatal and early childhood presentation of ICD are discussed.