Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/43843
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dc.contributor.authorAuclair, D.en
dc.contributor.authorHopwood, J.en
dc.contributor.authorLemontt, J.en
dc.contributor.authorChen, L.en
dc.contributor.authorByers, S.en
dc.date.issued2007en
dc.identifier.citationMolecular Genetics and Metabolism, 2007; 91(4):352-361en
dc.identifier.issn1096-7192en
dc.identifier.issn1096-7206en
dc.identifier.urihttp://hdl.handle.net/2440/43843-
dc.description.abstractDegenerative joint disease (DJD) is one aspect of mucopolysaccharidosis VI (MPS VI) pathology that has proven resistant to systemic enzyme replacement therapy (ERT). In this study the effect of repeated intra-articular injections (IA INJ) of recombinant human acetylgalactosamine-4-sulfatase (rh4S) on DJD was examined. Four MPS VI cats received i.v. ERT weekly from birth plus IA INJ (0 or 500 μg of rh4S per joint; monthly or every three months) while three MPS VI cats received IA INJ only. After 10 months, shoulders, elbows and knees were compared. Taken individually, an improvement in joint appearance was observed between the joints that received rh4S monthly or every three months compared with the contralateral joints treated with buffer or at lower frequency. Within articular cartilage of joints treated more frequently, the depth of clearance of lysosomal storage tended to be greater and uronic acid content was reduced reflecting the removal of glycosaminoglycans. Synovium in treated joints also showed less storage. No abnormal clinical signs were observed after the IA INJ and negligible antibody titres were measured throughout the study. No clear benefit was observed by combining IA INJ with weekly ERT and the most significant improvement in joint appearance resulted from increased IA INJ frequency. These data support the view that intra-articular therapy may be a good option for preventing the development of the severe articular pathology in MPS VI.en
dc.description.statementofresponsibilityDyane Auclair, John J. Hopwood, Jeffrey F. Lemontt, Lin Chen and Sharon Byersen
dc.language.isoenen
dc.publisherAcademic Press Inc Elsevier Scienceen
dc.subjectCartilage; Joints; Lysosomes; Animals; Cats; Humans; Mice; Mucopolysaccharidosis VI; Disease Models, Animal; N-Acetylgalactosamine-4-Sulfatase; Recombinant Proteins; Injections, Intra-Articular; Drug Administration Schedule; Phenotypeen
dc.titleLong-term intra-articular administration of recombinant human N-acetylgalactosamine-4-sulfatase in feline mucopolysaccharidosis VIen
dc.typeJournal articleen
dc.identifier.doi10.1016/j.ymgme.2007.04.009en
pubs.publication-statusPublisheden
dc.identifier.orcidByers, S. [0000-0001-5576-3636]en
Appears in Collections:Paediatrics publications

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