Rett syndrome (RTT) is a neurological disorder with devastating consequences on the brain. It is characterized by stagnation of development followed by regression, both occurring between age 6 months and 3 years. The clinical picture is dominated by cognitive impairment, loss of communication skills, purposeful hand movements, hand stereotypies, progressive deceleration of head growth, and abnormal locomotion. RTT syndrome presently has no effective therapy other than pallitative care Rett syndrome (RTT) is a neurological disorder with devastating consequences on the brain. It is cha ...