6. Rett’s Autism thought to be rare Considered unnecessary for doctors to learn about disorder No cure for disorder Treatments to reduce symptoms Number of children with Autism spectrum disorder has grown
7. Rett’s Caused by a gene mutation correct mutation in utero affect neurotransmitters mutation on the MECP-2 gene affects 1 in 10,000 girls why only girls what is in the X chromosomes of girls that allow them to live and boys to die.
Editor's Notes
Autism spectrum disorder has long interested me. A child can seem normal at birth then at about 2-3 years a parent may notice that their child is not developing as they should. There are four disorders in the Autism Spectrum disorder they are Rett’sdisorder,childhood disintegrative disorder,asperger’s syndrome, pervasive development disorder not otherwise specified and autistic disorder.
All five disorders have similar symptoms. They all have problems with communication both verbal and non-verbal. They also show problems in social interaction such as sharing emotions or hold a conversation. They also have repetitive behaviors like repeating words or actions. Asperger’s syndrome can show these symptoms but have well developed speech and age appropiate self-help skills.
In childhood disintegrative disorder the child will develop normally until the age of two then shows a loss of previously acquired skills. It could be the loss of bladder control,loss of social interaction the failure to develop peer relationships and loss of communication skills the inability to start and sustain a conversation,
Pervasive development disorder is an umbrella term doctors use when the child’s symptoms do not fit any other category. Rett’s syndrome affect only girls. The child is born normal and develops normally until the age of six months. At six months the childs head growth regresses and whatever hand skills she may have had at six months is lost. The child develops poor coordinated walk. It is the number one cause of retardation in girls.
Rett’s syndrome is caused by a gene mutation on the MECP-2 gene found in the X chromosome. It affects only girls. Boys with this disorder die before they are born. Since Rett’s is caused by a mutation is it possible to alter the gene before the baby is born? Why does this disorder affect only girls? I know males carry the X chromosome so I want to know what is in boys’ chromosomes that cause them to die.
![Rett’s Syndrome ,[object Object], normal at birth growth physically and mentally normal notice at about 2-3 years ,[object Object],Rett’s disorder Childhood disintegrative disorder Asperger’s Pervasive development disorder not otherwise specified. Autistic disorder](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)