{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T09:52:13Z","timestamp":1790070733022,"version":"4.0.1"},"reference-count":27,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2019,11,18]],"date-time":"2019-11-18T00:00:00Z","timestamp":1574035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Mucopolysaccharidoses (MPSs) are lysosomal storage disorders caused by deficiencies of enzymes involved in the catabolism of glycosaminoglycans (GAGs). Various treatments such as enzyme replacement therapy and\/or hematopoietic stem cell transplant are available for MPSs. Early initiation of treatment improves the outcome and delays the onset of symptoms, highlighting the need for newborn screening for MPSs. The main objective of this project was to devise and validate a multiplex urine filter paper method for GAG analysis using a tandem mass spectrometry (MS\/MS) approach to screen newborns for MPSs. Eluted urine samples from 21-day-old newborns were evaporated and a methanolysis reaction was performed. Samples were resuspended and analyzed using a UPLC-MS\/MS system. A one-minute chromatographic method allowed the absolute quantification of heparan sulfate (HS), dermatan sulfate (DS), and creatinine. Method validation revealed high precision (&lt; 9% relative standard deviation) and accuracy (&lt; 7% bias) for all analytes. The reference values normalized to creatinine obtained by the analysis of five hundred 21-day-old newborn urine samples were 34.6 +\/-6.2 mg\/mmol of creatinine and 17.3 +\/-3.9 mg\/mmol of creatinine for HS and DS, respectively. We present a rapid and efficient method for populational newborn urine screening using MS\/MS, which could also be applied to high-risk screening.<\/jats:p>","DOI":"10.3390\/diagnostics9040195","type":"journal-article","created":{"date-parts":[[2019,11,18]],"date-time":"2019-11-18T04:31:10Z","timestamp":1574051470000},"page":"195","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Neonatal Mass Urine Screening Approach for Early Detection of Mucopolysaccharidoses by UPLC-MS\/MS"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8117-2247","authenticated-orcid":false,"given":"Iskren","family":"Menkovic","sequence":"first","affiliation":[{"name":"Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine &amp; Health Sciences, Universit\u00e9 de Sherbrooke, CIUSSS de l\u2019Estrie-CHUS, 3001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne-Sophie","family":"Marchand","sequence":"additional","affiliation":[{"name":"Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine &amp; Health Sciences, Universit\u00e9 de Sherbrooke, CIUSSS de l\u2019Estrie-CHUS, 3001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6289-1839","authenticated-orcid":false,"given":"Michel","family":"Boutin","sequence":"additional","affiliation":[{"name":"Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine &amp; Health Sciences, Universit\u00e9 de Sherbrooke, CIUSSS de l\u2019Estrie-CHUS, 3001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christiane","family":"Auray-Blais","sequence":"additional","affiliation":[{"name":"Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine &amp; Health Sciences, Universit\u00e9 de Sherbrooke, CIUSSS de l\u2019Estrie-CHUS, 3001, 12th Avenue North, Sherbrooke, QC J1H 5N4, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1177\/0300985814529314","article-title":"Pathological and Biochemical Studies of Mucopolysaccharidosis Type IIIB (Sanfilippo Syndrome Type B) in Juvenile Emus (Dromaius novaehollandiae)","volume":"52","author":"Palmieri","year":"2015","journal-title":"Vet. 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