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https://hdl.handle.net/2440/28148
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Type: | Journal article |
Title: | Correlation among genotype, phenotype, and biochemical markers in Gaucher disease: Implications for the prediction of disease severity |
Author: | Whitfield, P. Nelson, P. Sharp, P. Bindloss, C. Dean, C. Ravenscroft, E. Fong, B. Fietz, M. Hopwood, J. Meikle, P. |
Citation: | Molecular Genetics and Metabolism, 2002; 75(1):46-55 |
Publisher: | Academic Press Inc |
Issue Date: | 2002 |
ISSN: | 1096-7192 1096-7206 |
Statement of Responsibility: | Whitfield, Phillip D. ; Nelson, Paul ; Sharp, Peter C. ; Bindloss, Colleen A. ; Dean, Caroline ; Ravenscroft, Elaine M. ; Fong, Beverley A. ; Fietz, Michael J. ; Hopwood, John J. ; Meikle, Peter J. |
Abstract: | Gaucher disease is a lysosomal storage disorder characterized by a deficiency of the enzyme acid beta-glucosidase. The clinical manifestations of Gaucher disease are highly variable, and although certain genotypes are often associated with mild or severe symptoms, a defined correlation between genotype and phenotype does not exist. Identification of biochemical markers characteristic of pathology may be of use in predicting the progression of the disease state. In this study the relationship among genotype, glycolipid substrates, lysosomal proteins, and the clinical manifestations of Gaucher disease has been evaluated. Plasma glycolipids were analyzed using electrospray ionization-tandem mass spectrometry. Lysosomal-associated membrane protein-1 (LAMP-1) and saposin C were determined by immunoquantification. Patients with Gaucher disease were shown to have an increased 16:0-glucosylceramide/16:0-lactosylceramide ratio and elevated concentrations of LAMP-1 and saposin C in plasma. A general relationship was found to exist among the 16:0-glucosylceramide/16:0-lactosylceramide ratio, LAMP-1 and saposin C levels, and patient phenotype, providing a refinement of the genotype-phenotype correlation. These findings have major implications for the diagnosis, prediction of disease severity, and monitoring of therapy in patients with Gaucher disease. |
Keywords: | Humans Gaucher Disease Disease Progression Saposins Glucosylceramides Lactosylceramides Glycoproteins Membrane Glycoproteins Antigens, CD Predictive Value of Tests Genotype Phenotype Adolescent Adult Middle Aged Child Child, Preschool Infant Female Male Lysosome-Associated Membrane Glycoproteins Biomarkers |
DOI: | 10.1006/mgme.2001.3269 |
Published version: | http://dx.doi.org/10.1006/mgme.2001.3269 |
Appears in Collections: | Aurora harvest 2 Molecular and Biomedical Science publications |
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