Development of a fluorometric microtiter plate-based enzyme assay for arylsulfatase B (MPS VI) using dried blood spots.

Mol Genet Metab Rep

Duke Biochemical Genetics Laboratory, Department of Pediatrics, Duke Medicine, Durham, NC, USA.

Published: October 2014

Mucopolysaccharidosis type VI or Maroteaux-Lamy syndrome is an autosomal recessive lysosomal storage disorder caused by deficiency of arylsulfatase B (ARS-B) enzyme activity. It results in mild to severe multi-organ system failure from accumulation of undigested glycosaminoglycans (GAGs); dermatan sulfate and chondroitin-4-sulfate. We have developed a single-step enzyme assay using a fluorescent substrate and dried blood spots to measure ARS-B activity to identify disease patients. This assay is robust, reproducible, specific and convenient to perform.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5121359PMC
http://dx.doi.org/10.1016/j.ymgmr.2014.10.005DOI Listing

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