Pseudo Hurler Polydystrophy / Disease

Diseases & Conditions

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Pseudo Hurler Polydystrophy

Synonyms of Pseudo Hurler Polydystrophy

Gangliosidosis GM1 Type 1
GLB1
ML Disorder III
ML III
Mucolipidosis III
Mucopolysaccharidosis VII
Pseudopolydystrophy
Pseudo-Polydystrophy

Disorder Subdivisions

General Discussion
Pseudo-Hurler polydystrophy (mucolipidosis type III) is a rare genetic metabolic disorder characterized by a defective enzyme known as UPD-N-acetylglucosamine-1-phosphotransferase. This defective enzyme ultimately results in the accumulation of certain complex carbohydrates (mucopolysaccharides) and fatty substances (mucolipids) in various tissues of the body. The symptoms of this disorder are similar, but less severe than those of I-cell disease (mucolipidosis type II) and may include progressive joint stiffness, curvature of the spine (scoliosis), and/or skeletal deformities of the hands (e.g., claw-hands). Growth delays accompanied by deterioration of the hip joints typically develop in children with pseudo-Hurler polydystrophy. Additional symptoms may include clouding of the corneas of the eyes, mild to moderate coarseness of facial features, mild mental retardation, easy fatigability, and/or heart disease. Pseudo-Hurler polydystrophy is inherited as an autosomal recessive trait.

This disorder belongs to a group of diseases known as lysosomal storage disorders. Lysosomes are particles bound in membranes within cells that break down certain fats and carbohydrates. Defective lysosomal enzymes associated with pseudo-Hurler polydystrophy leads to the accumulation of certain fatty substances (mucolipids) and certain complex carbohydrates (mucopolysaccharides) within the cells of many tissues of the body.

Organizations related to Pseudo Hurler Polydystrophy

CLIMB (Children Living with Inherited Metabolic Diseases)
Climb Building
Crewe Intl CW2 6BG
Phone #: +44- 87-0 7700 325
800 #: --
e-mail: [email protected]
Home page: http://www.CLIMB.org.uk
Canadian Society for Mucopolysaccharide and Related Diseases, Inc.
PO Box 64714
Ontario Intl L3R OM9
Phone #: 905--47-9-8701
800 #: 800--66-7-1846
e-mail: [email protected]
Home page: http://www.mpssociety.ca
Hide & Seek Foundation for Lysosomal Disease Research
4123 Lankershim Blvd.
North Hollywood CA 91602-2828
Phone #: 818-762-8621
800 #: N/A
e-mail: [email protected]
Home page: http://www.hideandseek.org
International Society for Mannosidosis & Related Diseases, Inc.
1030 Saxon Hill Drive
Cockeysville MD 21030
Phone #: 410-628-9991
800 #: N/A
e-mail: [email protected]
Home page: http://www/mannosidosis.org
MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
150 Custer Court
Green Bay WI 54301-1243
Phone #: 920-336-5333
800 #: 877-336-5333
e-mail: [email protected]
Home page: http://www.netnet.net/mums/
NIH/National Digestive Diseases Information Clearinghouse
2 Information Way
Bethesda MD 20892-3570
Phone #: 301-654-3810
800 #: 800-891-5389
e-mail: [email protected]
Home page: http://www.niddk.nih.gov
National MPS (Mucopolysaccharidoses/Mucolipidoses) Society, Inc.
PO Box 14686
Durham NC 27709-4686
Phone #: 919-806-0101
800 #: --
e-mail: [email protected]
Home page: http://www.mpssociety.org
Society for Mucopolysaccharide Diseases
46 Woodside Road
Buckinghamshire None HP6 6AJ
Phone #: 004-401-494 434156
800 #: --
e-mail: [email protected]
Home page: http://www.mpssociety.co.uk
The Arc (a national organization on mental retardation)
1010 Wayne Ave
Silver Spring MD 20910
Phone #: 301-565-3842
800 #: 800-433-5255
e-mail: [email protected]
Home page: http://www.thearc.org/
Vaincre Les Maladies Lysosomales
2 ter avenue de Fance
Massy None 91300
Phone #: 01 -69 -75 40 30
800 #: --
e-mail: [email protected]
Home page: http://www.vml-asso.org

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html