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The Genetics Of Autism Essay

1666 words - 7 pages

Autism is a condition, or "disorder" that affects many people. Autism strikes at will, when and where it wants. Unlike Downs Syndrome or other birth "defects," Autism leave no marks on those that it strikes. In fact, Autism takes pride in the ability to infiltrate a child's life, while leaving him or her strikingly handsome. Many people may not even know that Autism is there. They blame the child for what it cause him or her to do. This is Autism and it do as it please.

Autism spectrum disorder (ASD) is a general term for a group of complex disorders of brain development. They can be categorized, in many ways, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors. ASD can be associated with intellectual disability, difficulties in motor coordination and attention and physical health issues such as sleep and gastrointestinal disturbances. Some people with ASD thrive in music, math, visual skills and art. The acute signs of autism and symptoms of autism tend to appear between the ages of 2 to 3 years old. (Autism Speaks)

Figure 1

Figure 1 shows the variants of autism spectrum disorders. In many cases children are either diagnosed with either Autism or PDD-NOS (Pervasive developmental disorder not otherwise specified). Statistics from the U.S. Centers for Disease Control and Prevention (CDC) identify around 1 in 88 American children are diagnosed with autism, additionally exhibiting that autism is four to five times more prevalent among boys than girls. Regime autism statistics suggest that prevalence rates have incremented 10 to 17 percent annually in recent years. There is no established explication for this perpetuating increase, albeit ameliorated diagnosis and environmental influences are two reasons often considered. (Autism Speaks)

Long ago the answer would have been, “we have no idea”, but now research is giving us answers. First and foremost, there is not just one cause of autism. Over the years scientists have identified a number of recherche gene changes, or mutations, associated with autism. Some parents are endeavoring to verbalize that there may be a link between immunization as far as vaccines. One particular vaccine in question is the Measles, Mumps-Rubella or MMR Vaccine, but studies have found no link between vaccines and autism. However, it remains possible that, in recherche cases, immunization might trigger the onset of autism symptoms in a child with a genetic condition.

One particular cause of autism in males is a syndrome reffered to as Fragile X Syndrome. . Fragile X syndrome is associated with the expansion of the CGG trinucleotide repeat affecting the Fragile X mental retardation 1 (FMR1) gene on the X chromosome, resulting in a failure to express the fragile X mental retardation protein (FMRP), which is required for normal neural development....

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