1 Department of Pediatrics, University of California-San Francisco, San Francisco, California, and the Department of Pediatrics, Children's Hospital at Stanford, Stanford University, Stanford, California
Patients with Mucopolysaccharidosis II (Hunter's syndrome) were given short-term treatment with large infusions of fresh frozen plasma to evaluate recent claims of clinical and chemical improvement by such therapy. Clinical behavior, urine glycosaminoglycans, and skin, serum, and urine acid hydrolases were evaluated by single-blind techniques. There was no noticeable effect of fresh frozen plasma infusion on the performance of these patients. The total urinary excretion of glycosaminoglycans was not altered by the infusions and there was no change in the size of the glycosaminoglycan fragments.
The abnormal skin activity levels of
-galactosidase,
-glucuronidase, and N-acetylglucosaminidase were unaltered three days after fresh frozen plasma infusion and, similarly, the abnormal levels of these enzymes in the serum persisted without significant change during the ten days of evaluation.