Angelman Syndrome is a rare neurological disorder caused by a genetic mutation. It is characterized by severe developmental delays, intellectual disability, and movement and balance problems. The exact cause of Angelman Syndrome is unknown, but it is believed to be caused by a defective or missing gene on chromosome 15.
Genetic Causes of Angelman Syndrome
The most common cause of Angelman Syndrome is a defect on the maternally inherited chromosome 15. This defect is caused by a deletion of the gene known as UBE3A. It is also possible for Angelman Syndrome to be caused by a mutation or defect on the paternally inherited chromosome 15. In some cases, the cause of the disorder is unknown.
Diagnosis of Angelman Syndrome
Diagnosis of Angelman Syndrome is based on a combination of medical history, physical examination, genetic testing, imaging tests, and laboratory tests. A diagnosis of Angelman Syndrome can be made when a combination of clinical signs and symptoms are present. These include developmental delays, intellectual disability, movement and balance problems, seizures, and unique facial features.
Treatment of Angelman Syndrome
Treatment for Angelman Syndrome is focused on managing the symptoms of the disorder. Treatment may include physical therapy, occupational therapy, speech therapy, and medications to control seizures and other symptoms. There is currently no cure for Angelman Syndrome, but research is ongoing.