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Twins diagnosed with Autism Spectrum - Recent Research and Advancements

Updated on March 5, 2015
Autism Spectrum Research
Autism Spectrum Research | Source

Autism Spectrum - Genetic Code

In identical twins who share the exact same genetic code if one has ASD, the other twin also has ASD in nearly 9 out of 10 cases. If one sibling has ASD, the other siblings have 35 times the normal risk of also developing the disorder. Researchers are starting to identify particular genes that may increase the risk of ASD. According to conducted research by the NIMH.

I have fraternal twin boys age three, they were diagnosed with Autism Spectrum at two years old. The pediatrician explain to me there is not a known cause of ASD. Research has shown both genes and the environment have a important factor in the development of ASD.

Risk Factors and Characteristics CDC

Studies have shown that among identical twins, if one child has ASD, then the other will be affected about 36-95 percent of the time. In non-identical twins, if one child has ASD then the other is affected about 0-31 percent of the time.

Parents who have a child with ASD have a 2 percent to 18 percent chance of having a second child who is also affected. ASD tends to occur more often in people who have certain genetic or chromosomal conditions.

NIMH Stem Cell Possibilities in Autism

The Expanding Mission of ARI

Diagnosis and Assessment
Medical and Nutritional Problems
Underlying causes of Autism
Dr. Rimland develop the E-2 checklist to diagnose "classical autism"
Effective Biomedical Treatment
Studing physiology
Studying both the underline causes and the most effective treatment
Research focus on medical issues
Research on gastrointestinal problems
The checklist has been translated into Spanish, French, and Italian
Nutritional Supplements for Autism
Research on immune, and neurological systems

World Health Day, is an opportunity to high light the problems, but above all, to stimulate action. It is an occasion to call on all partners, governments, international donors, civil society, the private sector, the media, families, and individuals alike - to develop sustainable activities for the survival, health, and well-being of mothers and children. On this World Health Day, let us rededicate ourselves to that mission.

— Kofi Annan
Twins & Autism Spectrum Disorder
Twins & Autism Spectrum Disorder | Source

Infantile Autism : The Syndrome and its Implication for a Neural Theory of Behavior

Dr. Rimland's book on Infantile Autism, addresses important issues about autism, including, diagnosis, genetics, cognition, and a possible neurological site of damage. Genetic Component- In his book, Dr. Rimland concluded that there was likely a genetic component, as evidence by published reports on the higher prevalence of autism in identical twins than fraternal twins. Identical twins share the same genetic makeup, while fraternal twins overlap by about 50 percent. A few years later, Dr. Rimland suggested that autism was likely caused by an interaction between genetics and the environment.

Cognition - In the chapter entitled The Conceptual Impairment, Dr. Rimland wrote: "It is possible to trace its diversity of symptoms and manifestations to a single critical disability. The child with early infantile autism, is grossly impaired in a function basic to all cognition : the ability to relate new stimuli to remembered experience.

Dr. Rimland dedicated nearly 50 years of his life to improving the lives of hundreds of thousands of individuals and their families. Helping to improve research for autism worldwide.


Are you a parent or caregiver of twins that have been diagnosed with ASD?

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Dr. R. Lozano M.D.,Ph.D. Autism Research Inst.

American Research Institute

ARI is a Support Network
ARI offers Resources for Adults with ASD
ARI Support Autism Research
Online education events for parents and caretakers
Initiative focus on adult issues and services
Gave more than $1.5 million in research grants
Monthly e-newsletter with the latest updates
Quarterly e-news letter about adults with ASD
Annual think tank to discuss issues such as treatments, and interventions
www.autism.com offers translations for publications in 15 languages
Discussions on topics covering, health, housing, jobs
Collaborates with non-profit and research organizations worldwide

NIH News Balance tips toward environment as heritability ebbs in autism

The NIH has conducted an outstanding study, that's shows the advancements in understanding more about Autism Spectrum. The largest and most rigorus twin study of its kind to date has found that shared environment influences susceptibility to autism more than previously thought.

The study, supported by the National Institutes of Health, found that shared enviornmental factors-experiences and exposures common to both twin individuals-accounted for 55 percent of strict autism and 58% of more broadly defined ASD. Earlier twin studies have estimated the genetic heritability of autism to be as high as 90 percent. Enviornmental factors can include:

  • Water we drink and bathe in
  • Chemicals we use
  • Pollution

You can not tackle hunger, diease, and proverty unless you can also provide people with a healthy ecosystem in which their economics can grow.

— Gro Brundtland

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    • Carol McCullough profile image
      Author

      Success In Life 3 years ago from U.S.

      Thanks Mel, yes that's true, my brother had Autism, however he was not diagnosed until years later, because as you stated in the mid 70's and 80's little was known about ASD, as a child I remember fighting kids on the school bus that picked at my brother☺

    • Mel Carriere profile image

      Mel Carriere 3 years ago from San Diego California

      When I was young autism was practically unheard of and now I know probably a dozen people who have children with autism. This makes me think that it is due to mostly environmental factors, but this hub makes a convincing argument that it has a strong genetic component. Therefore, there were probably many more children growing up in the 70s with me that had autism and were probably misdiagnosed, or just labeled as "slow" and left to develop as the would without treatment. Excellent hub!