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Latest Heritability of autism Stories

2011-07-25 15:44:37

The biological causes of autism are still not understood. A diagnosis of autism is only possible after ages three or four; and the tests are subjective, based on behavioral symptoms. Now, in research that appeared in Neuron, scientists at the Weizmann Institute of Science, Carnegie Mellon University and the University of California, San Diego have found, for the first time, a method that can accurately identify a biological sign of autism in very young toddlers. By scanning the brain activity...

2011-07-12 12:50:54

Research provides opportunity for identifying genes linked to autism Siblings of people with autism show a similar pattern of brain activity to that seen in people with autism when looking at emotional facial expressions. The University of Cambridge researchers identified the reduced activity in a part of the brain associated with empathy and argue it may be a 'biomarker' for a familial risk of autism. Dr Michael Spencer, who led the study from the University's Autism Research Centre, said:...

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2011-07-12 06:25:00

Researchers at the Harvard School of Public Health reported on Monday that they have identified a number of perinatal and neonatal conditions that may be linked to autism, although the evidence is still too scarce to point to specific culprits, they said. Autism refers to a group of developmental brain disorders that obstruct a person's ability to communicate and interact socially.  The condition ranges from severe cases of "classic" autism to mild forms like Asperger's syndrome. The...

2011-07-07 06:52:53

(Ivanhoe Newswire) "“ The largest known study of twins with autism spectrum disorder (ASD) suggests that environmental influences and maternal infections during pregnancy may greatly increase risk for ASD. Environmental influences include parental age, low birth weight and multiple births. The study suggested that both genetic and shared environmental factors significantly increase risk for ASD: an estimated 38 percent of risk being associated with genetic heritability and 58 percent...

2011-07-05 19:44:10

Non-inherited genetic factors also in the mix -- NIH-funded science The largest and most rigorous 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 environmental factors "“ experiences and exposures common to both twin individuals "“ accounted for 55 percent of strict autism and 58 percent of more broadly defined autism...

2011-07-05 13:48:42

Genetics alone cannot account for the high rates of autism among fraternal, or non-identical, twins Autism Speaks, the world's largest autism science and advocacy organization, joined in announcing significant findings from the largest known study of twins with autism spectrum disorder (ASD). This work, conducted by a consortium of renowned researchers and using material from Autism Speaks Autism Genetic Resource Exchange (AGRE) was published online today in the Archives of General...

2011-07-05 13:00:53

Environmental component may be substantial After evaluating twin pairs in which at least one child has autism or autism spectrum disorder (ASD), researchers suggest that the shared environment may play a more substantial role in development of the condition than shared genes do, according to a report published Online First today by Archives of General Psychiatry, one of the JAMA/Archives journals. Current estimates suggest that 40 of every 10,000 children have autism, and prevalence rates for...

2011-06-14 01:29:45

Autism is often described as a spectrum "“ varying from severe syndromes in which the symptoms of autism are only part of the problem to the more classic autism characterized by impaired social skills, delayed language development, and repetitive or stereotyped behaviors. The genetic origin of the disorder may also occur along a spectrum. On one hand, a severe mutation affecting a particular gene gives rise to syndromic autism, a form of the disorder that occurs along with other...

2011-06-14 01:28:27

Many roads can lead to the same place, often crossing over one another and sometimes passing the same landmarks. The interactome, or protein interaction network, for autism spectrum disorders developed by researchers at Baylor College of Medicine and the Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital in collaboration with scientists at the Center for Cancer Systems Biology at Dana-Farber Cancer Institute demonstrates how protein pathways converge, diverge and...

2011-06-13 07:50:05

(Ivanhoe Newswire) -- Yale researchers have discovered that hundreds of small genetic variations are associated with autism spectrum disorders. This new research supports the theory that autism is not caused by one or two major genetic defects but rather by many small variations. Investigators looked at more than 1,000 families that had a single child with autism, an unaffected sibling and unaffected parents. They compared individuals with autism to their siblings to determine the genetic...


Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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