Definition
Mucopolysaccharidosis Type I (MPS I) is a rare genetic disorder that belongs to a group of diseases called lysosomal storage disorders. It is caused by the deficiency of the enzyme alpha-L-iduronidase, which is responsible for breaking down certain complex carbohydrates called glycosaminoglycans (GAGs) in the body.
Subtypes
MPS I can be classified into three subtypes:
- MPS I Hurler Syndrome (severe form)
- MPS I Hurler-Scheie Syndrome (intermediate form)
- MPS I Scheie Syndrome (attenuated form)
Symptoms
The symptoms of MPS I can vary depending on the subtype, but they often include:
- Coarse facial features
- Enlarged liver and spleen
- Joint stiffness
- Developmental delays
- Heart problems
- Corneal clouding
Treatment
Currently, there is no cure for MPS I, but treatment options aim to manage the symptoms and improve the quality of life for affected individuals. Treatment may include:
- Enzyme replacement therapy
- Stem cell transplantation
- Supportive care for associated health issues
Early diagnosis and intervention are crucial for optimizing treatment outcomes in individuals with MPS I.