Mucopolysaccharide diseases and associated diseases
Background
These rare lysosomal diseases are each caused by a different enzyme deficiency. This results in Mucopolysaccharides being stored in cells of the body causing progressive damage.
The Mucopolysaccharide diseases are classified as MPS I-IX. They are named after the doctor who first described them:
Hurler (MPS IH) alpha-L-iduronidase deficiency
Hurler Scheie (MPS IHS) alpha-L-iduronidase deficiency (formerly MPS V)
Scheie (MPS IS) alpha-L-iduronidase deficiency
Hunter (MPS II) alpha-L-iduronidase-2-sulphate-sulphatase deficiency
Sanfilippo (MPS III) Four distinct enzyme abnormalities, same clinical patterns
Morquio (MPS IV) A Galactosamine-6-sulphate sulphatase
Morquio (MPS IV) B beta-Galactosidase
Maroteaux Lamy (MPS VI) N-acetyl galactosamine-4-sulphatase deficiency
Sly (MPS VII) beta-gluconidase deficiency
MPS IX Hyaluronidase deficiency
The mucolipidoses and other storage diseases are as follows:
ML I Neuramidase Deficiency
ML II I Cell disease (also known as Leroy syndrome)
ML III Pseudo Hurler Polydystrophy
ML IV
Sialidosis
Fucosidosis
Mannosidosis
Sialic Acid Storage disease
Multiple Sulphatase Deficiency
Aspartylglycosaminuria
Winchester syndrome
Fabry disease