how to cite this article: salehpour sh. diagnostic methods for neimann-pick type c. iran j child neurol. 2015 autumn;9:4(suppl.1): 16-17.   pls see pdf.

UNLABELLED The aim of the study was to analyze a series of Brazilian patients with Niemann-Pick disease type C (NP-C). METHOD Correlations between clinical findings, laboratory data, molecular findings and treatment response are presented. RESULT The sample consisted of 5 patients aged 8 to 26 years. Vertical supranuclear gaze palsy, cerebellar ataxia, dementia, dystonia and dysarthria were...

The intracellular accumulation of unesterified cholesterol was examined during 24 h of low density lipoprotein (LDL) uptake in normal and Niemann-Pick C fibroblasts by fluorescence microscopy with filipin staining and immunocytochemistry. Perinuclear fluorescence derived from filipin-sterol complexes was observed in both normal and mutant cells by 2 h. This perinuclear cholesterol staining reac...

Filipin is an antibiotic polyene widely used as a histochemical marker for cholesterol. We previously reported cholesterol/filipin-positive staining in brain of β-galactosidase (β-gal) knockout ((-/-)) mice (GM1 gangliosidosis). The content and distribution of cholesterol and gangliosides was analyzed in plasma membrane (PM) and microsomal (MS) fractions from whole-brain tissue of 15 week-old c...

The distribution of cellular unesterified cholesterol was studied in fibroblasts, which had been depleted of plasma membrane sphingomyelin by exposure to exogenous sphingomyelinase. This treatment has previously been shown to induce an increase in cholesterol esterification, a decrease in the biosynthesis of cholesterol, and a decreased susceptibility of cell cholesterol to oxidation with chole...

The polarization of sterol- and sphingolipid-enriched domains (lipid rafts) has been linked to morphogenesis and cell movement in diverse cell types. In the yeast Saccharomyces cerevisiae, a dramatic polarization of sterol-rich domains to the shmoo tip was observed in pheromone-induced cells (M. Bagnat and K. Simons, Proc. Natl. Acad. Sci. USA 99:14183-14188, 2002). We therefore examined whethe...

branes by transillumination. Appl. Theor. Electrophor. 1:59-60. 5.Smejkal, G.B. and H.F. Hoff. 1993. Co-localization of molecular mass marker proteins on Western blots. BioTechniques 15:796-798. 6.Smejkal, G.B. and H.F. Hoff. 1994. Filipin staining of lipoproteins in polyacrylamide gels: sensitivity and photobleaching of the fluorophore and its use in a double staining method. Electrophoresis 1...

The Na/K-ATPase-rich microsomal fraction and purified Na/K-ATPase membranes of the salt-stressed avian salt gland were studied at defined filipin/cholesterol molar ratios (F/C) using enzyme assay and electron microscopy including negative staining, thin sectioning and freeze fracturing. Comparative examinations of detergent-treated microsomal fractions and the use of electron microscopic tracer...

Niemann-Pick disease type C (NP-C) is a rare, autosomal-recessive, progressive neurological disease caused by mutations in either the NPC1 gene (in 95% of cases) or the NPC2 gene. This observational, multicentre genetic screening study evaluated the frequency and phenotypes of NP-C in consecutive adult patients with neurological and psychiatric symptoms. Diagnostic testing for NP-C involved NPC...

Niemann-Pick disease (NP-C) is a lysosomal storage disease in which impaired intracellular lipid transport leads to accumulation of cholesterol and glycosphingolipids in various neurovisceral tissues. It is an autosomal recessive disorder, caused by mutations in the NPC1 or NPC2 genes. The clinical spectrum is grouped by the age of onset and onset of neurological manifestation: pre/perinatal; e...