DoKsTeR

What is Angelman Syndrome?

Angelman syndrome ( /ˈeɪndʒəl.mən/; abbreviated AS) is a neuro-genetic disorder characterized by intellectual and developmental disability, sleep disturbance, seizures, jerky movements (especially hand-flapping), frequent laughter or smiling, and usually a happy demeanor.

AS is a classic example of genomic imprinting in that it is usually caused by deletion or inactivation of genes on the maternally inherited chromosome 15 while the paternal copy, which may be of normal sequence, is imprinted and therefore silenced. The sister syndrome, Prader-Willi syndrome, is caused by a similar loss of paternally inherited genes and maternal imprinting. AS is named after a British pediatrician, Dr. Harry Angelman, who first described the syndrome in 1965.[1] An older, alternative term for AS, happy puppet syndrome, is generally considered pejorative and stigmatizing so it is no longer the accepted term, though it is sometimes still used as an informal term of diagnosis. People with AS are sometimes known as "angels", both because of the syndrome's name and because of their youthful, happy appearance.

From Wikipedia, the free encyclopedia

18 people worldwide are born with AS every day.

What are the features?

Developmental Delay, No or minimal use of words, Movement disorder, Seizures,

Sleep Disturbance, Light hair and skin.

Who does it affect?

It affects males and females equally. It is present in all nationalities, races, and ethnic groups.