Factors which Can Cause Autism

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Autism is a complex developmental disorder in children. Symptoms that can be known are a disorder in the areas of development: development of two-way interaction, the development of reciprocal interaction, and behavior development.

Up to this time about autism can not be solved, although development has increased the number of autistic children and more alarming. In the United States alone the number of autistic children comparison with normal children is 1:150; temporal comparison of children with autism in the UK normally 1:100.

Some scientists say autism may occur due to a combination of various factors, including genetic factors that can be triggered by environmental factors. Here are some factors suspected to be the cause of autism.

1. Genetic.

There is strong evidence of the changes in the gene contribute to the occurrence of autism. According to the National Institutes of Health, a family who has one child with autism has a 10-20 times greater chance to give birth to children with autism as well.

Research on twins found that if one child with autism, twin most likely have the same disorder.
In general, the experts identified 20 genes that cause autism spectrum disorders. The gene plays an important role in brain development, brain growth, and how brain cells communicate.

2. Pesticide

High pesticide use was also associated with the occurrence of autism. Some research found that pesticides will disrupt the function of genes in the central nervous system. Because the chemicals contained in pesticides can have an impact for those who have the talent autism.

3. Drugs

Babies who use certain drugs at the time in the womb have a greater risk of autism. These drugs include valproic and thalidomide. Thalidomide is an old-generation drug that is used to overcome the symptoms of nausea and vomiting during pregnancy, anxiety, and insomnia.

In the U.S. the drug thalidomide has been banned due to the many reports of babies born with disabilities. However, these drugs are prescribed to address skin disorders and cancer therapy. Meanwhile, valproic acid is a drug used for patients with mood disorders and bipolar disorder.

4. Age parent

If the older age of parents when a child, the higher the risk the child suffering from autism. The study, published in 2010 found that women aged 40 years had a 50 percent risk of having a child with autism compared with women aged 20-29 years. Although not yet known with certainty about the relationship age of parents with autism, but this is expected due to gene mutations.

5. Brain development.

In certain areas of the brain, including serebal cortex and cerebellum is in charge of the concentration, movement and mood regulation, related to autism. The imbalance of neurotransmitters, like dopamine and serotonin, the brain also associated with autism.