Search results
Results from the WOW.Com Content Network
The lysosomal storage disorders Niemann-Pick disease, SMPD1-associated (type A and B) are characterized by deficiencies in acid sphingomyelinase. [3] Diagnosis is confirmed by an aSMase activity less than 10% in the peripheral blood lymphocytes. [citation needed] Caused by a mutation in the SMPD1 gene, it is found in 1:250,000 in the population.
Niemann–Pick disease (NP), also known as acid sphingomyelinase deficiency, is a group of rare genetic diseases of varying severity.These are inherited metabolic disorders in which sphingomyelin accumulates in lysosomes in cells of many organs.
Sphingomyelin phosphodiesterase 1 (SMPD1), also known as acid sphingomyelinase (ASM), is an enzyme that in humans is encoded by the SMPD1 gene. Sphingomyelin phosphodiesterase 1 belongs to the sphingomyelin phosphodiesterase family. [5]
Insufficient activity of the enzyme acid sphingomyelinase causes the buildup of toxic amounts of sphingomyelin, a fatty substance present in every cell of the body. This enzyme is found in special compartments within cells called lysosomes (compartments that digest and recycle materials in the cell), and is required to metabolize the lipid ...
Sphingomyelin can accumulate in a rare hereditary disease called Niemann–Pick disease, types A and B. It is a genetically-inherited disease caused by a deficiency in the lysosomal enzyme acid sphingomyelinase, which causes the accumulation of sphingomyelin in spleen, liver, lungs, bone marrow, and brain, causing irreversible neurological damage.
Neutral sphingomyelinase (N-SMase) activity was first described in fibroblasts from patients with Niemann-Pick disease – a lysosomal storage disease characterized by deficiencies in acid SMase. [3] Subsequent study found that this enzyme was the product of a distinct gene, had an optimum pH of 7.4, was dependent on Mg 2+ ions for activity ...
Functional inhibitors of acid sphingomyelinase, or FIASMA, [1] is a large group of pharmacological compounds inhibiting the enzyme acid sphingomyelinase (ASM, EC 3.1.4.12). ). This enzyme is mainly located within the lysosome, where it cleaves sphingomyelin to ceramide and sphingosine, the latter of which is then phosphorylated to sphingosine-1-phosp
Acid sphingomyelinase protein and methods of treating type B Niemann-Pick disease, (2003). [31] Method for enhancing mutant enzyme activities in lysosomal storage disorders, (2003). [32] Chaperone-based therapy for Niemann-Pick disease, (2010). [33] Dose escalation enzyme replacement therapy for treating acid sphingomyelinase deficiency, (2013 ...