نتایج جستجو برای: smpd1
تعداد نتایج: 88 فیلتر نتایج به سال:
OBJECTIVE Variants in GBA are associated with Lewy Body (LB) pathology. We investigated whether variants in other lysosomal storage disorder (LSD) genes also contribute to disease pathogenesis. METHODS We performed a genetic analysis of four LSD genes including GBA, HEXA, SMPD1, and MCOLN1 in 231 brain autopsies. Brain autopsies included neuropathologically defined LBD without Alzheimer Disea...
BACKGROUND Types A and B Niemann-Pick disease (NPD) are autosomal-recessive lysosomal storage disorders caused by the deficient activity of acid sphingomyelinase due to mutations in the sphingomyelin phosphodiesterase 1 (SMPD1) gene. METHODS In order to determine the prevalence and distribution of SMPD1 gene mutations, the genomic DNA of 15 unrelated Iranian patients with types A and B NPD wa...
Case Report: Genetic analysis and anesthetic management of a child with Niemann-Pick disease Type A.
A 14-month-old child, recently diagnosed with Niemann-Pick disease type A, presented for a laparoscopic placement of a gastrostomy tube under general anesthesia. The disease was confirmed and further characterized by genetic testing, which revealed evidence of the presence of two known pathogenic mutations in the SMPD1 gene, and enzyme studies showed a corresponding very low level of enzymatic ...
مقدمه: بیماری نیمن پیک(NPD) Niemann-Pick Disease یک بیماری ذخیره ی لیپیدی با وراثت اتوزومی مغلوب است. این بیماری اساسا به دلیل نقص در ژن SMPD1 (11p15.4) که رمزکننده ی آنزیم اسید اسفنگو میلیناز Acid sphingomyelinase (ASM) میباشد، بروز مییابد. نقص در این آنزیم منجر به تجمع اسفنگو میلین در مغز و کبد میشود، که نتیجهی آن اختلال در عملکرد یا آسیب این دو بافت است. نشانگر های چندشکلی مانند چن...
Improved sensitivity of an acid sphingomyelinase activity assay using a C6:0 sphingomyelin substrate
Short-chain C6-sphingomyelin is an artificial substrate that was used in an acid sphingomyelinase activity assay for a pilot screening study of patients with Niemann-Pick disease types A and B. Using previously published multiplex and single assay conditions, normal acid sphingomyelinase activity levels (i.e. false negative results) were observed in two sisters with Niemann-Pick B who were comp...
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