Angelman Syndrome (AS) is a genetic disorder characterized by severe intellectual and developmental disability, speech impairment, and motor dysfunction. AS is also known as Angelman Syndrome, Angelman-like Syndrome, Angelman-Masi-Lenz Syndrome, or Happy Puppet Syndrome.
AS is caused by a deletion or genetic mutation of the maternal UBE3A gene located on chromosome 15. The mutation affects the function of the gene, resulting in the lack of certain proteins essential for proper development of the brain. As a result, the brain's ability to develop and function properly is impaired.
The severity of the disorder varies from person to person, but most individuals with AS experience cognitive impairment, motor delays, and difficulty communicating. Common physical characteristics include a wide mouth, a protruding tongue, and a distinctive gait.
AS is typically diagnosed by a combination of physical and developmental assessments, genetic testing, and neurological evaluation. Treatment typically includes physical, occupational, and speech therapy, as well as educational interventions. There is no cure for AS, but treatment and support can help individuals with the disorder reach their fullest potential.