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Niemann-Pick disease type C2

Subacute or juvenile form (type C). Epidemiology: - 5% of Niemann-Pick disease type C - may appear early in life or be delayed into the teen years Pathology: 1) cholesterol esterification defect 2) cholesterol accumulation in lysosomes 3) sphingomyelinase deficiency not demonstrated. Genetics: - associated with defects in NPC2 (HE1) Clinical manifestations: 1) hepatosplenomegaly (moderate) 2) brain damage may be extensive 3) inability to look up & down 4) ataxia 5) dysphagia 6) loss of vision 7) hearing loss Management: 1) low-cholesterol diet often recommended, but benefit limited 2) prognosis is variable; some patients live into adulthood

Related

cholesterol epididymal secretory protein E1; human epididymis-specific protein 1; He1; Niemann-Pick disease type C2 protein (NPC2, HE1) sphingomyelin

General

Niemann-Pick disease type C

Properties

ACCUMULATION: sphingomyelin cholesterol

Database Correlations

OMIM 601015 MORBIDMAP 601015

References

  1. NINDS Niemann-Pick Disease Information Page https://www.ninds.nih.gov/disorders/all-disorders/niemann-pick-disease-information-page