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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.
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.
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.
Enzyme replacement therapy is available to treat mainly Fabry disease and Gaucher disease, and people with these types of sphingolipidoses may live well into adulthood. The other types are generally fatal by age 1 to 5 years for infantile forms, but progression may be mild for juvenile- or adult-onset forms.
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]
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
Here's which types of lettuce are most popular, why these greens are good for you and what you need to be mindful of as you include more in your diet.
The long-chain bases, sometimes simply known as sphingoid bases, are the first non-transient products of de novo sphingolipid synthesis in both yeast and mammals. These compounds, specifically known as phytosphingosine and dihydrosphingosine (also known as sphinganine, [4] although this term is less common), are mainly C 18 compounds, with somewhat lower levels of C 20 bases. [5]