Gaucher disease is an autosomal recessively inherited lysosomal storage disease in which a deficiency of glucocerebrosidase is associated with the accumulation of glucocerebroside in reticuloendothelial cells. Clinically, 3 types of Gaucher disease have been defined on the basis of the presence or absence of neurological symptoms. The frequency of gallbladder involvement is reportedly greater in patients with type 1 Gaucher disease than in healthy persons. We report a case of recurrent cholelithiasis and liver failure in a patient with type 2 Gaucher disease who showed severe progressive neurological involvement.
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In silico biophysics and rheology of blood and red blood cells in Gaucher Disease.
bioRxiv
December 2024
Division of Applied Mathematics, Brown University, Providence, Rhode Island, United States.
Gaucher Disease (GD) is a rare genetic disorder characterized by a deficiency in the enzyme glucocerebrosidase, leading to the accumulation of glucosylceramide in various cells, including red blood cells (RBCs). This accumulation results in altered biomechanical properties and rheological behavior of RBCs, which may play an important role in blood rheology and the development of bone infarcts, avascular necrosis (AVN) and other bone diseases associated with GD. In this study, dissipative particle dynamics (DPD) simulations are employed to investigate the biomechanics and rheology of blood and RBCs in GD under various flow conditions.
View Article and Find Full Text PDFMultivalent GCase Enhancers: Synthesis and Evaluation of Glyco-Gold Nanoparticles Decorated with Trihydroxypiperidine Iminosugars.
Bioconjug Chem
December 2024
Department of Chemistry "Ugo Schiff" (DICUS), University of Florence, Via della Lastruccia 3-13, Sesto Fiorentino, FI 50019, Italy.
The present study reports the preparation of the first multivalent iminosugars built onto a glyco-gold nanoparticle core (glyco-AuNPs) capable of stabilizing or enhancing the activity of the lysosomal enzyme GCase, which is defective in Gaucher disease. An -nonyltrihydroxypiperidine was selected as the bioactive iminosugar unit and further functionalized, via copper-catalyzed alkyne-azide cycloaddition, with a thiol-ending linker that allowed the conjugation to the gold core. These bioactive ligands were obtained with either a linear monomeric or dendritic trimeric arrangement of the iminosugar.
View Article and Find Full Text PDFBackground: Lysosomal storage diseases (LSDs) can be treated with intravenous enzyme replacement therapy (ERT). ERT is being administered either in specialized clinics or in the home care setting. Studies indicate that home-based ERT can be considered safe and positively effects patient reported outcomes.
View Article and Find Full Text PDFAfrican ancestry neurodegeneration risk variant disrupts an intronic branchpoint in GBA1.
Nat Struct Mol Biol
December 2024
Center for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
Recently, an African ancestry-specific Parkinson disease (PD) risk signal was identified at the gene encoding glucocerebrosidase (GBA1). This variant ( rs3115534 -G) is carried by ~50% of West African PD cases and imparts a dose-dependent increase in risk for disease. The risk variant has varied frequencies across African ancestry groups but is almost absent in European and Asian ancestry populations.
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