The great debate
The great debate
•First, like cystic fibrosis or sickle-cell disease, autism clearly has a genetic basis. Researchers found that when one identical twin had autism, the chance that the other twin had autism was about 90 percent; for fraternal twins, ...
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Possible Environmental Causes of Autism and Other ...
The well known identical twins studies show that, in some cases, one identical twin will receive an autism diagnosis but the other will not, suggesting a role for environmental factors in autism causation. ...
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Older Father 55 ish has non-identical Autistic/schizophrenic twins
Julie knew there was a chance William had autism. Studies show that a sibling of someone with autism—including a fraternal twin like William—has an 8-to-10-percent chance of having it. Identical twins have concordance rates as high as ...
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Offord Sib Study Detail
We know that genetics plays a role in autism. In 1977, Folstein and Rutter published the first twin study in autism and showed that the concordance rate in identical twins was very much higher than in non- identical twins.1 This finding ...
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Please Read…
Autism is a neurological disorder, and its signs appear by the age of 1 or even earlier. It is highly inheritable. In identical twins where one is autistic, the chance that both are autistic is greater than 50-50. ...
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Autism
Genetic factors seem to be important. For example, identical twins are much more likely than fraternal twins or siblings to both have autism. Similarly, language abnormalities are more common in relatives of autistic children. ...
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Paternal age and schizophrenia in dizygotic twins
The study of the effect of paternal age could yield useful information regarding the reported greater occurrence of schizophrenia in dizygotic twins. REFERENCES Crow, TJ (1999) Twin studies of psychosis and the genetics of cerebral ...
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What’s perfectly clear, however, is that monozygotic twins aren’t ...
As we’ve been learning with increasing frequency over the past two years, these copy number variations may be important in diseases such as autism and schizophrenia. Of the 19 pairs in this study, for example, only one twin in each of ...
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The Study of Twins
Fortunately, today’s twin studies are much more reputable and respected. They have provided valuable information on human behavior and health-related issues. One such study showed that autism is largely inherited, a comfort to parents ...
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Understanding Autism
On the other hand, the studies raise other questions. The fact that not one of the studies showed 100% concordance in monozygotic twins suggests that there are other factors at play in the causes of autism, for instance. ...
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Related keywords: autism logo, autism and chelation therapy, autism symbol
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