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Learn About Mucopolysaccharidoses (MPS)

What is the definition of Mucopolysaccharidoses (MPS)?

Mucopolysaccharidoses (MPSs) are a group of rare diseases in which the body is missing or does not have enough of an enzyme needed to break down long chains of sugar molecules. These chains of molecules are called glycosaminoglycans (formerly called mucopolysaccharides). As a result, the molecules build up in different parts of the body and cause various health problems. There are several types of MPSs, including:

  • MPS I (Hurler syndrome; Hurler-Scheie syndrome; Scheie syndrome)
  • MPS II (Hunter syndrome)
  • MPS III (Sanfilippo syndrome)
  • MPS IV (Morquio syndrome)
What are the alternative names for Mucopolysaccharidoses (MPS)?

MPS; Lysosomal storage disease - mucopolysaccharidosis

Who are the top Mucopolysaccharidoses (MPS) Local Doctors?
Raymond Y. Wang
Elite in Mucopolysaccharidoses (MPS)
Medical Genetics
Elite in Mucopolysaccharidoses (MPS)
Medical Genetics
1201 West La Veta Avenue, 
Orange, CA 
Languages Spoken:
English

Raymond Wang is a Medical Genetics provider in Orange, California. Dr. Wang is rated as an Elite provider by MediFind in the treatment of Mucopolysaccharidoses (MPS). His top areas of expertise are Mucopolysaccharidoses (MPS), Mucopolysaccharidosis Type 7 (MPS VII, Sly Syndrome), Mucopolysaccharidosis Type 1 (MPS I, Hurler Syndrome), Pompe Disease, and Adenoidectomy.

Paul R. Harmatz
Elite in Mucopolysaccharidoses (MPS)
Pediatric Gastroenterology | Gastroenterology
Elite in Mucopolysaccharidoses (MPS)
Pediatric Gastroenterology | Gastroenterology

UCSF Benioff Children's Hospital Gastroenterology Clinic

744 52nd St, 5th Floor, 
Oakland, CA 
Languages Spoken:
English
Offers Telehealth

Paul Harmatz is a Gastroenterologist and a Pediatric Gastroenterologist in Oakland, CA. Dr. Harmatz is rated as an Elite provider by MediFind in the treatment of Mucopolysaccharidoses (MPS). His top areas of expertise are Mucopolysaccharidoses (MPS), Mucopolysaccharidosis Type 6 (MPS VI, Maroteaux-Lamy Syndrome), Mucopolysaccharidosis Type 2 (MPS II, Hunter Syndrome), and Mucopolysaccharidosis Type 4 (MPS IV, Morquio Syndrome).

 
 
 
 
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Elite in Mucopolysaccharidoses (MPS)
Elite in Mucopolysaccharidoses (MPS)
Porto Alegre, RS, BR 

Roberto Giugliani practices in Porto Alegre, Brazil. Mr. Giugliani is rated as an Elite expert by MediFind in the treatment of Mucopolysaccharidoses (MPS). His top areas of expertise are Mucopolysaccharidoses (MPS), Mucopolysaccharidosis Type 2 (MPS II, Hunter Syndrome), Acid Sphingomyelinase Deficiency (ASMD), Mucopolysaccharidosis Type 7 (MPS VII, Sly Syndrome), and Bone Marrow Transplant.

What are the latest Mucopolysaccharidoses (MPS) Clinical Trials?
Mucopolysaccharidosis VII Disease Monitoring Program (MPS VII DMP)

Summary: The objectives of this study are to characterize MPS VII disease presentation and progression and assess long-term effectiveness and safety, including hypersensitivity reactions and immunogenicity of vestronidase alfa.

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An Open-label Phase I/II Study of JR-446 in Mucopolysaccharidosis Type IIIB

Summary: A Phase I/ II, open-label study, designed to evaluate the safety and explore efficacy of the study drug in development for the treatment of MPS IIIB patients.

Who are the sources who wrote this article ?

Published Date: April 08, 2025
Published By: Anna C. Edens Hurst, MD, MS, Associate Professor in Medical Genetics, The University of Alabama at Birmingham, Birmingham, AL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

What are the references for this article ?

Kumar V, Abbas AK, Aster JC. Genetic disorders. In: Kumar V, Abbas AK, Aster JC, eds. Robbins & Cotran Pathologic Basis of Disease. 10th ed. Philadelphia, PA: Elsevier; 2021:chap 5.

Lampe C. Mucopolysaccharidoses. In: Kliegman RM, St. Geme JW, Blum NJ, et al, eds. Nelson Textbook of Pediatrics. 22nd ed. Philadelphia, PA: Elsevier; 2025:chap 109.

Pyeritz RE. Inherited diseases of connective tissue. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 239.

Turnpenny PD, Ellard S, Cleaver R. Inborn errors of metabolism. In: Turnpenny PD, Ellard S, Cleaver R, eds. Emery's Elements of Medical Genetics and Genomics. 16th ed. Philadelphia, PA: Elsevier; 2022:chap 18.