History of Angelman syndrome in Timeline

By Popular Timelines Editorial Team · Updated: August 9, 2024

Angelman syndrome (AS) is a genetic disorder primarily affecting the nervous system. Key characteristics include distinctive facial features, developmental delays, intellectual disabilities, speech impairment, motor difficulties, and seizures. Despite these challenges, individuals with AS often exhibit a cheerful disposition and a fascination with water. Symptoms typically manifest within the first year of life.

1964: Initial Observation of Commonalities

Around 1964, Angelman encountered three children with distinct disabilities in England, yet he sensed an underlying commonality in their conditions.

1965: Publication of "Puppet Children"

Despite lacking scientific evidence, Angelman published his observations of the three children in 1965, calling them "Puppet Children". The name was later changed to Angelman syndrome.

1965: "Puppet Children"

Harry Angelman, inspired by a painting titled "...a Boy with a Puppet" observed jerky movements in his patients, leading him to use the term "Puppet Children" to categorize them in his 1965 publication.

1965: First Description of Angelman Syndrome

In 1965, British pediatrician Harry Angelman provided the first medical description of Angelman syndrome, bringing it to the attention of the medical community.

1987: Chromosome 15 Deletion Identified

A breakthrough occurred in 1987 when researchers discovered that approximately half of the children diagnosed with AS exhibited a partial deletion on chromosome 15 (chromosome 15q partial deletion), providing crucial genetic insight into the syndrome.

1995: Initial Diagnostic Criteria Established

In 1995, a significant step towards understanding and diagnosing Angelman syndrome was taken with the establishment of the initial diagnostic criteria, developed in collaboration with the Angelman Syndrome Foundation (US).

2005: Revision of Diagnostic Criteria

Reflecting advancements in the understanding of Angelman syndrome, the diagnostic criteria were revisited and revised in 2005, aiming for greater accuracy and clarity.

2011: Angelman Syndrome in Popular Culture

The Filipino drama series "Budoy," aired in 2011, featured a main character, Budoy Maniego, diagnosed with Angelman syndrome, raising awareness and understanding of the condition among a wider audience.