Angelman Syndrome (AS), previously known as Happy Puppet Syndrome, is a genetic disorder first described by an English pediatrician, Dr. Harry Angelman, in 1965. Angelman syndrome is a complex genetic disorder that primarily affects the nervous system. Characteristic features of this condition include delayed development, intellectual disability, severe speech impairment, and problems with movement and balance (ataxia).
To provide support to families and individuals affected by AS , the Angelman Syndrome Foundation maintains an active network of regional representatives and members of the board of directors. A quarterly newsletter is also published which provides information and research on AS . For additional information contact:
Angelman Syndrome Foundation (ASF)
75 Executive Drive, Suite 327
Aurora, IL 60504
Toll Free: 800-IF-ANGEL or 800-432-6435
US National Library of Medicine – Angelman Syndrome basics.
National Organization for Rare Diseases – Signs, symptoms, causes and more.
Fact Sheet last updated on: 9/25/2017
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