Environmental Risk Factors Of Autism

Several environmental factors have also been suspected of attributing to the cause of autism such as: exposure to infectious disease, heavy metals, phthalates and phenols, pesticides, alcohol, illicit drugs, advanced maternal age, maternal bleeding during pregnancy, maternal medications used during pregnancy and maternal stress (Glasson et al., 2004). The research conducted by Glasson et al., (2004) shows that individuals who were later diagnosed with autism were more likely to have experienced obstetric difficulties during pregnancy, labor, delivery and neonatal period. Advanced maternal age was the strongest finding in that study.

“Independent of the genome screens, evidence suggests that the region on chromosome 15q11-13 contains a gene or genes relevant to Autism.” (Dr. David Pauls 2003). Basically, there are suggestions that the chromosome 15q11-13 is somehow mutated, deleted, or duplicated, causing this disorder to transpire. In addition to genetics, environmental factors can influence Autism; though they are not greatly supported ideas, they can’t be entirely ruled out. In the UK there have been reports of the measles vaccine having a part in causing this disorder. (Dr. David Pauls 2003). Newer studies have even shown that prenatal care before a woman even conceives reduces the risk extensively. “Woman who did not take a daily multivitamin in the three months before conception and during the first month of pregnancy were almost twice as likely to give birth to a child with ASD as a woman who had taken a daily multivitamin.” (The Harvard Mental Health Letter 2011). Multivitamins contain a lot of helpful vitamins to maintain a healthy pregnancy, but researchers suggest that the folic acid is the most significant influence that reduces the risk of a child born with ASD. (The Harvard Mental Health Letter

Today, we are seeing a rising increase in the occurrence of autism spectrum disorder (ASD) in children. What once used to be a rare disorder is now commonly recognized in the medical field as well as in the community. Not only is autism a health issue in itself, but many health issues come along with the disorder. This paper will discuss the description of the population, the top health issues and their relevance, and interventions and outcomes that can help reduce these health issues in this specific population.

The most recent data collected by the Centers for Disease Control and Prevention (CDC) shows that 1 in 68 children are diagnosed with Autism Spectrum Disorder (ASD) (CDC, 2014). Children diagnosed with ASD often have difficulty with functional performance in several key areas including; social participation, communication, school based activities, motor performance and play. These impairments in functional performance are not exclusive to the child alone as the caregiver often assumes a great deal of burden in managing the symptoms of a child with ASD. Furthermore, these difficulties along with the rising diagnosis rate has pushed ASD to the forefront of clinical research and has raised issues regarding which Ayres

According to the 2014 estimates from the Centers for Disease Control and Prevention (CDC), about 1 in 68 children have been identified as having an autism spectrum disorder (ASD); a rate that has been steadily growing over the past 20 years (National Autism Association, 2015). Increases in reported frequencies for ASD are most likely due to a combination of factors including broader diagnostic criteria and increased awareness as well as a true increase in the number of people with ASD (American Psychiatric Association, 2013). Autism it self does not effect life expectancy and, in general, people with intellectual and developmental disabilities (IDD) can expect to live as long as the non-cognitively impaired population (National Autism Association,

Focusing on the role of environmental factors in the development of autism after birth is a popular study amongst the autism spectrum disorder (ASD) community. It is known that genetics strongly influence the risk for developing ASD, but genetics are not responsible alone. The increasing cases of autism have generated great interest in the potential involvement of toxins in our environment and how that impacts children prone to autism spectrum disorder. For example, exposure to the chemicals thalidomide and valproic acid prior to birth has been linked to increased risk of autism.

Hypothesis stated that environmental agents exposure to the mother while pregnant may contribute to the childs development of ASD (NIH, 2015).

Autism spectrum disorders (ASD) are a class of NDD affecting mostly males, which are largely idiopathic and display extensive variation in terms of phenotype, severity and degree of heritability [2]. It is postulated that the pathology of ASD is the result of a complex interaction between genetic predisposition and environmental risk factors, which disturb the developing brain [1]. ASD commonly involve deficits in social interaction and cognition, language, emotional learning and the presence of repetitive, stereotyped behaviours [1, 3, 4]. The brains of autistic children display reductions in long distance connectivity, abnormally regulated apoptosis and cell division, and increased inflammation [4].Additional studies have demonstrated gliosis, abnormal neuronal migration and

The apparent increase in the prevalence of Autism Spectrum Disorder in the United States has been a growing public concern. The lifelong condition can cause severe neurodevelopmental problems characterized by symptoms such as impaired communication, diminished social interaction, and unusual ritualistic behaviors (Johnson, Handen, Zimmer, Sacco, & Turner, 2010). Unfortunately, doctors and researchers have not been able to agree on the direct cause for Autism Spectrum Disorder (ASD) or ways to treat the various conditions on the Spectrum. With little definitive information, families affected by ASD seek alternative interventions.

According to Shangraw (2012), there is no concrete etiology of autism because it is not diagnosed by its cause but on observed behaviors. The Autism-Society (n.d.) stated that a possibility for the cause of autism is the abnormalities in the brain structure or function. In an MRI research study by Piven et al. (1995), they found that an individual with autism spectrum disorder had a higher total brain volume and tissue compared to a person who is not on the autism spectrum disorder. Genetic problems and environmental factors can be a cause of autism spectrum disorder, according to the Mayo Clinic (2014). In genetic problems such as fragile X syndrome or Rett Syndrome, it can be associated with autism spectrum disorder. There is ongoing research regarding environmental factors and exploring ideas such as viral infections, pregnancy complications, and / or air pollutants to determine if they are active factors of autism spectrum disorder.

One the biggest psychological disorders in our society is childhood autism. Childhood autism is defined as “A pervasive developmental disorder defined by the presence of abnormal and/or impaired development that is manifest before the age of 3 years, and by the characteristic type of abnormal functioning in all three areas of social interaction, communication, and restricted, repetitive behaviour.” (MHresource.org). Furthermore, boys are three to four more times likely to develop childhood autism than girls (MHresources.org). Statistics also show that the prevalence of childhood autism in births is one in fifty-nine and has grown 119.4 percent from 2000 to 2010 (CDC). Now, researchers are looking into what causes childhood autism. They are

There are many factors that can influence the treatment for autistic children. These factors include environmental, culture and family. Environmental factors concerning the onset of autism is an essential area of study. Genetic factor has been associated with the onset of autism as well. Parents who have been exposed to teratogens have substantiated factors that stimulate the chance of autism

Autism spectrum disorder (ASD) is known as a neurodevelopmental disorder that is capable of weakening communication, behavior and socialization. The term ASD includes three major subtypes which is Autism Spectrum Disorder, Pervasive Developmental Disorder and Asperger’s Disorder. About 9.0 in 1000 children have ASD and certain types of autism might not be identified until three years of life. The probability of boys being diagnosed is higher compared to girls (Bravaccio et al. 2013). Autism is not curable, but it can be controlled using certain type of treatments as there is no specific or one treatment for autism. The question that arises for this literature review, if the treatment used for autism is effective?

Tens of millions of people have been diagnosed with Autism worldwide, effecting both genders, all races, ethnicities and people from all socioeconomic classes. In 2010 a Surveillance Summary was conducted in the United States, where it identified that one in 68 children are diagnosed with Autism (Centers for Disease Control and Prevention, 2014). It has been recognised

In 2011, the Center for Disease Control and Prevention found that on average, 1 in 10 children each year are diagnosed with autism spectrum disorders (Hunt & Marshall, 2012, p. 304). However, the number of children diagnosed with autism in recent years is