93726-8

LOINC code 93726-8 identifies "Dermatan sulfate and heparan sulfate and keratan sulfate panel - Serum or Plasma". Mucopolysaccharidoses (MPSs) are rare genetic disorders of glycosaminoglycan (GAG) catabolism caused by a deficiency in the activity of a single, specific lysosomal enzyme required for GAG degradation. GAGs include dermatan sulfate, heparan sulfate, keratan sulfate, and chondroitin sulfate. MPS patients have elevated GAG fragments in blood, urine and cerebral spinal fluid (CSF) as well as a buildup of incompletely degraded GAG in lysomes. The GAG accumulation interferes with normal cell, tissue and organ function, which may result in cardiac abnormalities, organ failure, cognitive impairment, and skeletal or joint abnormalities. There are nine primary MPS disorders, MPS I - MPS IX. Each type is associated with a specific enzyme deficiency and gene locus. Measuring GAG levels in urine can screen for MPS disorders, though false-negatives are common. To distinguish specific MPS disorders, enzyme activity assays based on cultured fibroblasts, leucocytes, plasma or serum are utilized. Predicting MPS disease severity is difficult for most types, however, patients who are homozygous for a nonsense allele or have two different nonsense alleles have the severe form of MPS I. [PMID: 22210669]

This code measures Dermatan sulfate & heparan sulfate & keratan sulfate panel in Ser/Plas. It belongs to the PANEL.CHEM class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.