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Niemann-Pick disease
inherited metabolic disorder
Epidemiology:
-> type A is the most common type
Pathology:
1) in types A & B, insufficient activity of sphingomyelinase causes lysosomal accumulation sphingomyelin in spleen, liver, lungs, bone marrow, brain (type A)
2) types C & D are characterized by a defect that results in lysosomal accumulation of cholesterol within the brain
Genetics:
- associated with defects in SMPD1 (types A & B)
Laboratory:
- acid sphingomyelinase in leukocytes
- acid sphingomyelinase in dried blood spot
Management:
-> see specific type
Related
Pick's disease
SMPD1 (sphingomyelin phosphodiesterase) gene mutation; Niemann-Pick Disease Interpretation
sphingomyelin
Specific
Niemann-Pick disease type A (acute neuronopathic form)
Niemann-Pick disease type B
Niemann-Pick disease type C
Niemann-Pick disease type D (without sphingomyelinase deficiency)
Niemann-Pick disease type E
General
sphingolipidosis; sphingolipodystrophy; cerebral lipidosis
Properties
ACCUMULATION: sphingomyelin
Database Correlations
OMIM correlations
References
- Textbook of Biochemistry with Clinical Correlations,
3rd ed., TM Devlin (ed), Wiley-Liss, NY 1992 pg 459
- NINDS Niemann-Pick Disease Information Page
https://www.ninds.nih.gov/disorders/all-disorders/niemann-pick-disease-information-page