National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Hypophosphatasia is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Hypophosphatasia (HPP) is a rare genetic disorder characterized the abnormal development of bones and teeth. These abnormalities occur due to defective mineralization, the process by which bones and teeth take up minerals such as calcium and phosphorus. These minerals are required for proper hardness and strength. Defective mineralization results in bones that are soft and prone to fracture and deformity. Defective mineralization of teeth can lead to premature tooth loss. The specific symptoms can vary greatly from one person to another, sometimes even among members of the same family. There are five major clinical forms of HPP that range from an extremely severe form that can cause stillbirth to a form associated with only premature loss of baby (deciduous) teeth, but no bone abnormalities. Hypophosphatasia is caused by mutations in the tissue nonspecific alkaline phosphatase (ALPL) gene. This gene is also known as the TNSALP gene. Such mutations lead to low levels of the tissue nonspecific alkaline phosphatase enzyme. Depending on the specific form, hypophosphatasia can be inherited in an autosomal recessive or autosomal dominant manner.
CLIMB (Children Living with Inherited Metabolic Diseases)
176 Nantwich Road
Crewe, CW2 6BG
6645 W. North Avenue
Oak Park, IL 60302
March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains, NY 10605
NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
One AMS Circle
Bethesda, MD 20892-3675
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
European Skeletal Dysplasia Network
Institute of Genetic Medicine
International Centre for Life
Newcastle upon Tyne, NE1 3BZ
Soft Bones, Inc.
121 Hawkins Place
Boonton, NJ 07005
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It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
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Last Updated: 10/8/2014
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