Endogenous Glycosaminoglycan (GAG) Disaccharide, "UA-HNAc(1S)-Late" prepared with blood from a healthy adult. Product consists of one QC High DBS card prepared with blood from a healthy adult spiked with the Endogenous Disaccharide, "UA-HNAc(1S)-Late." One control DBS card prepared with unspiked blood is also provided. Each DBS card contains ten DBS. At least five to six 3 mm punches can be taken from each DBS.
The Endogenous GAG Disaccharide, "UA-HNAc(1S)-Late," was described by Herbst et. al. as being elevated in 18 MPS-II Newborn DBS (ID2S deficiency) when compared to a reference range of healthy newborns and newborns with ID2S Pseudodeficiencies.
Endogenous GAG Biomarker "UA-HNAc(1S)-Late" QC DBS
Herbst, Z.M., Urdaneta, L., Klein, T., Burton, B.K., Basheeruddin, K., Liao, H., Fuller, M., Gelb, M.H., 2022. Evaluation of Two Methods for Quantification of Glycosaminoglycan Biomarkers in Newborn Dried Blood Spots from Patients with Severe and Attenuated Mucopolysaccharidosis Type II. International Journal of Neonatal Screening, 8(1), p.9.