Search Results - "Befekadu Asfaw"
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Loading of cell cultures with cholesterol‐dextran particles as a new functional test for Niemann–Pick type C disease
Published in Journal of inherited metabolic disease (01-05-2022)“…Deuterium‐labeled cholesterol‐dextran particles (d4‐CholDex), prepared by co‐precipitation, were internalized by cultured human skin fibroblasts and HEK293…”
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Transcript, protein, metabolite and cellular studies in skin fibroblasts demonstrate variable pathogenic impacts of NPC1 mutations
Published in Orphanet journal of rare diseases (05-04-2020)“…Niemann-Pick type C (NP-C) is a rare neurovisceral genetic disorder caused by mutations in the NPC1 or the NPC2 gene. NPC1 is a multipass-transmembrane protein…”
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Direct tandem mass spectrometric profiling of sulfatides in dry urinary samples for screening of metachromatic leukodystrophy
Published in Clinica chimica acta (21-10-2013)“…Prediagnostic steps in suspected metachromatic leukodystrophy (MLD) rely on clinical chemical methods other than enzyme assays. We report a new diagnostic…”
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Prosaposin deficiency and saposin B deficiency (activator-deficient metachromatic leukodystrophy): Report on two patients detected by analysis of urinary sphingolipids and carrying novel PSAP gene mutations
Published in American journal of medical genetics. Part A (01-04-2009)“…Prosaposin deficiency (pSap‐d) and saposin B deficiency (SapB‐d) are both lipid storage disorders caused by mutations in the PSAP gene that codes for the 65–70…”
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LysoGb3 quantification facilitates phenotypic categorization of Fabry disease patients: Insights gained by a novel MS/MS method
Published in Clinica chimica acta (15-07-2024)“…•Novel and easy LC-MS/MS method for lysoGb3 quantitation in FD patients.•AGAL activity/lysoGb3 ratio predictively surpasses lysoGb3 measurements.•Urinary…”
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Defects in degradation of blood group A and B glycosphingolipids in Schindler and Fabry diseases
Published in Journal of lipid research (01-07-2002)“…Skin fibroblast cultures from patients with inherited lysosomal enzymopathies, alpha-N-acetylgalactosaminidase (alpha-NAGA) and alpha-galactosidase A…”
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Degradation of blood group A glycolipid A-6-2 by normal and mutant human skin fibroblasts
Published in Journal of lipid research (01-09-1998)“…The degradation of blood group glycolipid A-6-2 (GalNAc(alpha1-->3)[Fuc alpha1-->2]Gal(beta1-->4)GlcNAc(beta1-->3)Gal(beta1-->4)Glc(beta1-->1')C er,…”
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Specific storage of glycoconjugates with terminal α-galactosyl moieties in the exocrine pancreas of Fabry disease patients with blood group B
Published in Glycobiology (Oxford) (01-06-2018)“…Blood group B glycosphingolipids (B-GSLs) are substrates of the lysosomal alpha-galactosidase A (AGAL). Similar to its major substrate-globotriaosylceramide…”
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Fabry disease: renal sphingolipid distribution in the α-Gal A knockout mouse model by mass spectrometric and immunohistochemical imaging
Published in Analytical and bioanalytical chemistry (01-03-2015)“…Fabry disease is an X-linked lysosomal storage disease due to deficient α-galactosidase A (α-Gal A) activity and the resultant lysosomal accumulation of…”
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Fabry disease: renal sphingolipid distribution in the [alpha]-Gal A knockout mouse model by mass spectrometric and immunohistochemical imaging
Published in Analytical and bioanalytical chemistry (01-03-2015)“…Fabry disease is an X-linked lysosomal storage disease due to deficient [alpha]-galactosidase A ([alpha]-Gal A) activity and the resultant lysosomal…”
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Link between a novel human γD-crystallin allele and a unique cataract phenotype explained by protein crystallography
Published in Human molecular genetics (22-07-2000)“…We describe a 5-year-old boy with a unique congenital cataract caused by deposition of numerous birefringent, pleiochroic and macroscopically prismatic…”
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12
Mucolipidosis IV: Report of a Case with Ocular Restricted Phenotype Caused by Leaky Splice Mutation
Published in American journal of ophthalmology (01-04-2007)“…Purpose To confirm and define a molecular basis for a case of mucolipidosis type IV (ML IV) with an extremely atypical phenotype pattern. Design Observational…”
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Replacement of α-galactosidase A in Fabry disease: effect on fibroblast cultures compared with biopsied tissues of treated patients
Published in Virchows Archiv : an international journal of pathology (01-06-2008)“…The function and intracellular delivery of enzyme therapeutics for Fabry disease were studied in cultured fibroblasts and in the biopsied tissues of two male…”
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Replacement of [alpha]-galactosidase A in Fabry disease: effect on fibroblast cultures compared with biopsied tissues of treated patients
Published in Virchows Archiv : an international journal of pathology (01-06-2008)“…The function and intracellular delivery of enzyme therapeutics for Fabry disease were studied in cultured fibroblasts and in the biopsied tissues of two male…”
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Ultrastructural and functional abnormalities of mitochondria in cultivated fibroblasts from α-mannosidosis patients
Published in Biológia (01-04-2009)“…α -Mannosidosis is a lysosomal storage disorder caused by α -mannosidase deficiency. Clinical course of the disease ranges from severe infantile to milder…”
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Ultrastructural and functional abnormalities of mitochondria in cultivated fibroblasts from α-mannosidosis patients
Published in Biológia (2009)“…α-Mannosidosis is a lysosomal storage disorder caused by α-mannosidase deficiency. Clinical course of the disease ranges from severe infantile to milder…”
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Determination of Urinary Sulfatides and Other Lipids by Combination of Reversed-Phase and Thin-Layer Chromatographies
Published in Analytical biochemistry (01-05-1999)“…A fast and simple method for determination of sulfatides in the urine of patients with metachromatic leukodystrophy (MLD, arylsulfatase A deficiency) has been…”
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18
Benzenediazonium Ion Derived from Sudan I Forms an 8-(Phenylazo)guanine Adduct in DNA
Published in Chemical research in toxicology (01-06-1995)“…1-(Phenylazo)-2-hydroxynaphthalene (Sudan I, Solvent Yellow 14) is a liver and urinary bladder carcinogen in mammals. Sudan I forms benzenediazonium ion during…”
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Link between a novel human [gamma]D-crystallin allele and a unique cataract phenotype explained by protein crystallography
Published in Human molecular genetics (22-07-2000)“…We describe a 5-year-old boy with a unique congenital cataract caused by deposition of numerous birefringent, pleiochroic and macroscopically prismatic…”
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20
Activation of carcinogens by peroxidase Horseradish peroxidase-mediated formation of benzenediazonium ion from a non-aminoazo dye, 1-phenylazo-2-hydroxynaphthalene (Sudan I) and its binding to DNA
Published in FEBS letters (23-05-1988)“…Horseradish peroxidase in the presence of hydrogen peroxide (HRP/H 2O 2) oxidizes a carcinogenic non-aminoazo dye, 1-phenylazo-2-hydroxynaphthalene (Sudan I)…”
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