The second paragraph of the sub heading explains that air pollution could also be responsible for the damage of cortex in the prefrontal of the brain. The topic sentence in the second paragraph is “Several studies postulated that particles from polluted air may impact on the CNS in early childhood and can damage the prefrontal cortex resulting in cognitive dysfunction in children exposed to high concentrations of air pollution”. The length of this sentence is 38 words. The paragraph also easily explains the harmful effects of different chemicals, which can damage the brain and can result into autism. The following two paragraphs in the sub heading explain different factors responsible for the infections in brain and for autism. The article is filled with scientific essence and provided proper information related to the disorder. In order to write a paragraph, the topic sentence is very important. The topic sentence should be self explanatory and readers should get the essence of the remaining paragraph. It is very important to include all the key point. In the future analysis, there are remaining part of the article, which is to be read and analyzed.
The further analysis will focus on the sub heading “Astrocytes and metabolic dysfunction in autism” “Astroglial control of neurosecretion in autism”, “Microglial dysfunction and microglial activation in the context of autism”, and “Oligodendrocytes in the autistic brain”. All these sub headings in the article provide information about the causes and effects of autism spectrum disorder. The article is related to autism spectrum disorder. This kind of disorder is found in one of every fifty children in America. The researchers are conducting different studies to understand the significant reason behind such disorder. The article states that major reasons are still unknown, but the environmental factors are highly responsible for this disorder. The environmental factors, which are found in the recent years are further explained and studied in the article. The author has used simple scientific language to explain the cause and effects of autism spectrum disorder. One the difficult aspect of the article is the length of the sentences. The long sentences are difficult to understand and interpret. However, the simple style of explanation is quite comfortable, which helps to absorb information easily.