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)
3015 E. New York Street
Suite A2 #285
Aurora, IL 60504
Toll Free: 800-IF-ANGEL or 800-432-6435
US National Library of Medicine
MedlinePlus Angelman Syndrome basics.
National Organization for Rare Diseases
Signs, symptoms, causes and more. Includes assistance programs.
Fact Sheet last updated on: 2/13/2023
Disclaimer: INDEX is pleased to provide you this information. Please note, this information is not comprehensive, nor is it intended to take the place of professional advice. We encourage you to check other resources of such information. No endorsement by the University of Massachusetts Chan Medical School, DisabilityInfo.org, INDEX, or affiliates, should be inferred. We reserve the right to remove, to modify, or to add any information at any time, for any reason, and without notice.
Any information you may provide to update or further complete this information would be appreciated. Please contact us with comments. We appreciate your help.