酸性神经鞘磷脂酶抗体

2015-01-22 09:34 下载量：0

资料摘要

资料下载

酸性神经鞘磷脂酶抗体 Background: Converts sphingomyelin to ceramide. Also has phospholipase C activities toward 1,2-diacylglycerolphosphocholine and 1,2-diacylglycerolphosphoglycerol. Isoform 2 and isoform 3 have lost catalytic activity. Involvement in disease: Defects in SMPD1 are the cause of Niemann-Pick disease type A (NPDA) ; also known as Niemann-Pick disease classical infantile form. It is an early-onset lysosomal storage disorder caused by failure to hydrolyze sphingomyelin to ceramide. It results in the accumulation of sphingomyelin and other metabolically related lipids in reticuloendothelial and other cell types throughout the body, leading to cell death. Niemann-Pick disease type A is a primarily neurodegenerative disorder characterized by onset within the first year of life, mental retardation, digestive disorders, failure to thrive, major hepatosplenomegaly, and severe neurologic symptoms. The severe neurological disorders and pulmonary infections lead to an early death, often around the age of four. Clinical features are variable. A phenotypic continuum exists between type A (basic neurovisceral) and type B (purely visceral) forms of Niemann-Pick disease, and the intermediate types encompass a cluster of variants combining clinical features of both types A and B. Also known as: Acid sphingomyelinase; ASM; ASM_HUMAN; aSMase; NPD; Smpd1; Sphingomyelin phosphodiesterase 1 acid lysosomal; Sphingomyelin phosphodiesterase.酸性神经鞘磷脂酶抗体

资料下载

文献贡献者

上海沪震生物科技有限公司

银牌会员 | 第11年

查看全部资料

资料中心更多