title: Long-term follow-up of a girl with Maroteaux-Lamy syndrome after bone marrow transplantation.
abstract: BACKGROUND
  Mucopolysaccharidosis type VI (MPS VI or Maroteaux-Lamy syndrome) is a rare autosomal recessive genetic disorder. We treated a 10-year-old girl with Maroteaux-Lamy syndrome successfully with bone marrow transplantation (BMT).
  
  
  METHODS
  The patient had reconstitution with bone marrow from her HLA-matched brother. One month after BMT, arylsulfatase activity of the recipient's leukocytes became normal. No graft-versus-host disease (GVHD) was observed. Arylsulfatase B activity was maintained and the urinary excretion of glycosaminoglycans (GAGs) became normal.
  
  
  RESULTS
  The clinical response of the patient was slow but persistent during 12 years after BMT. Improved motor function included walking alone for a long distance without aid, riding a bicycle, taking a bath by herself, etc. Besides, few infections occurred. Exertional dyspnea, severe snoring, and vertigo were much improved.
  
  
  CONCLUSIONS
  Early intervention is recommended for BMT. Allogeneic BMT may provide a better life quality as illustrated in the present case.
authors.affiliation: Department of Pediatrics, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan, China.
authors.forename: Ching-Chia
authors.initials: CC
authors.lastname: Wang
authors.forename: Wuh-Liang
authors.initials: WL
authors.lastname: Hwu
authors.forename: Kai-Hsin
authors.initials: KH
authors.lastname: Lin
mesh_terms: D016026:Bone Marrow Transplantation; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006025:Glycosaminoglycans / Q000652:urine; D006085:Graft Survival; D006801:Humans; D009043:Motor Activity; D009087:Mucopolysaccharidosis VI / Q000276:immunology / Q000378:metabolism / Q000601:surgery*; D020051:N-Acetylgalactosamine-4-Sulfatase / Q000378:metabolism
chemical_list: D006025:Glycosaminoglycans; D020051:N-Acetylgalactosamine-4-Sulfatase