Objectives: To assess the outcome of population-based newborn screening for mucopolysaccharidosis type II (MPS II) during the first year of screening in Illinois.
Study Design: Tandem mass spectrometry was used to measure iduronate-2-sulfatase (I2S) activity in dried blood spot specimens obtained from 162 000 infant samples sent to the Newborn Screening Laboratory of the Illinois Department of Public Health in Chicago.
Results: One case of MPS II and 14 infants with pseudodeficiency for I2S were identified.
Conclusions: Newborn screening for MPS II by measurement of I2S enzyme activity was successfully integrated into the statewide newborn screening program in Illinois.
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| http://dx.doi.org/10.1016/j.jpeds.2019.07.053 | DOI Listing |
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