" /> Osteopetrosis, autosomal dominant 1 - CISMeF





Preferred Label : Osteopetrosis, autosomal dominant 1;

Symbol : OPTA1;

CISMeF acronym : OPTA1;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Osteopetrosis, autosomal dominant, type I;

Description : The osteopetroses are a heterogeneous group of genetic disorders characterized by increased bone density due to impaired bone resorption by osteoclasts. Autosomal dominant osteopetrosis type I is characterized by generalized osteosclerosis most pronounced in the cranial vault. Patients are often asymptomatic, but some suffer from pain and hearing loss. It appears to be the only type of osteopetrosis not associated with an increased fracture rate. Type II autosomal dominant osteopetrosis is characterized by sclerosis predominantly involving the spine, the pelvis, and the skull base. Fragility of bones and dental abscess are leading complications.;

Inheritance : Autosomal dominant;

Molecular basis : Caused by mutation in the low-density lipoprotein receptor-related protein 5 gene (LRP5, 603506.0014);

Laboratory abnormalities : Normal serum acid phosphatase;

Prefixed ID : #607634;

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03/05/2025


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