Auditory Phenotype of Niemann-Pick Disease, Type C1

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Auditory phenotype of Niemann-Pick disease, type C1.

OBJECTIVES The aim of this study was to comprehensively evaluate the auditory phenotype in Niemann-Pick disease, type C1 (NPC1), to understand better the natural history of this complex, heterogeneous disorder, and to define further the baseline auditory deficits associated with NPC1 so that use of potentially ototoxic interventions (e.g., 2-hydroxypropyl-ß-cyclodextrin) may be more appropriate...

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Aberrant Promoter Methylation Profile of Niemann-Pick Type C1 Gene in Cardiovascular Disease

Background: The protein of Niemann-pick type C1 (NPC1) gene promotes the egress of cholesterol from late endosomes and lysosomes to other cellular compartments and contributes to a process known as reverse cholesterol transport. This study aimed to examine whether promoter methylation of NPC1 is associated with risk of cardiovascular disease (CVD). Methods: Fifty CVD patients and 50 healthy sub...

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Olfactory Deficits in Niemann-Pick Type C1 (NPC1) Disease

BACKGROUND Niemann-Pick type C disease (NPC) is a rare autosomal recessive lipid storage disease characterized by progressive neurodegeneration. As only a few studies have been conducted on the impact of NPC on sensory systems, we used a mutant mouse model (NPC1(-/-)) to examine the effects of this disorder to morphologically distinct regions of the olfactory system, namely the olfactory epithe...

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Niemann-Pick C1

So what does NPC1 really do? This is the key question. NPC1 shares significant structural homology with the resistance–nodulation–division (RND) family of permeases, members of which transport a number of substrates including heavy metals and lipids. Like its prokaryotic counterparts, NPC1 appears to transport fatty acids, but has not yet been shown to transport cholesterol. It has been suggest...

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Niemann-Pick type C disease.

A 4-year-old Afghan girl born to consanguineous parents presented with progressive neurological regression and hepatomegaly noticed after one year of age. The child had hypotonia, repeated unexplained falls and facial dyskinesia. Bone marrow examination revealed presence of storage cells suggestive of Gauchers or Niemann Pick. Confirmatory study by lysosomal enzyme from leucocytes was normal fo...

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ژورنال

عنوان ژورنال: Ear & Hearing

سال: 2014

ISSN: 0196-0202

DOI: 10.1097/aud.0b013e3182a362b8