Latest Heritability of autism Stories

2011-11-23 12:10:47

Although many mental illnesses are uniquely human, animals sometimes exhibit abnormal behaviors similar to those seen in humans with psychological disorders. Such behaviors are called endophenotypes. Now, researchers at the California Institute of Technology (Caltech) have found that mice lacking a gene that encodes a particular protein found in the synapses of the brain display a number of endophenotypes associated with schizophrenia and autism spectrum disorders. The new findings appear...

2011-11-14 23:08:45

Findings show how brain's structure and genes affect autism and fragile X syndrome Research released today shows that scientists are finding new tools to help understand neurodevelopmental disorders like autism and fragile X syndrome. These studies show in new detail how the brain's connections, chemicals, and genes interact to affect behavior. The research findings were presented at Neuroscience 2011, the Society for Neuroscience's annual meeting and the world's largest source of emerging...

2011-11-14 06:36:28

(Ivanhoe Newswire) -- The exact causes of autism remain unknown, but failure of a vital prenatal process may be one of the culprits. A new study, published in the November 9 issue of the Journal of the American Medical Society (JAMA), confirms this relatively recent theory. The study, by researchers at the University of California, San Diego Autism Center of Excellence, shows that brain overgrowth in boys with autism involves excess neurons in areas of the brain associated with social,...

2011-11-07 19:54:23

Analysis reveals overlap between genetic and epigenetic risk maps of autism Scientists at the University of Massachusetts Medical School are the first to map epigenetic changes in neurons from the brains of individuals with autism, providing empirical evidence that epigenetic alterations–changes in gene expression caused by mechanisms other than changes in the underlying DNA sequence–may play an important role in the disease. Analysis of these variations revealed hundreds of...

2011-11-07 19:43:13

Neurons in the prefrontal cortex of individuals with autism show changes at numerous sites across the genome, according to a study being published Online First by the Archives of General Psychiatry, one of the JAMA/Archives journals. Autism spectrum disorders are a group of complex illnesses with different causes and origins. Neuronal dysfunction in the cerebral cortex and other regions of the brain could contribute to the cognitive and behavioral defects in autism, according to background...

2011-11-04 23:08:24

Autism Spectrum Disorder (ASD) affects about 1 in 100 children resulting in a range of problems in language, communication and understanding other people's emotional cues, all of which can lead to difficulties in social situations. Boys are three to four more times as likely to be affected as girls and consequently it has been suggested that the genes involved in this disorder may be linked to the X chromosome. New research published in BioMed Central's open access journal Molecular Autism...

2011-10-20 22:46:32

Researchers at UCLA have found a possible explanation for why autistic children act and think differently than their peers. For the first time, they've shown that the connections between brain regions that are important for language and social skills grow much more slowly in boys with autism than in non-autistic children.   Reporting in the current online edition of the journal Human Brain Mapping, senior author Jennifer G. Levitt, a professor of psychiatry at the Semel Institute for...

Image 1 - Autistic Facial Characteristics Identified
2011-10-20 07:00:39

Research is a step toward understanding cause of autism The face and brain develop in coordination, with each influencing the other, beginning in the embryo and continuing through adolescence. Now, University of Missouri researchers have found distinct differences between the facial characteristics of children with autism compared to those of typically developing children. This knowledge could help researchers understand the origins of autism. "There is no clear answer about whether...

2011-10-19 08:25:48

Finding may lead to screening test to identify susceptibility to having an autistic child A study by researchers at UC Davis has found that pregnant women with a particular gene variation are more likely to produce autoantibodies to the brains of their developing fetuses and that the children of these mothers are at greater risk of later being diagnosed with autism. The finding is the first to demonstrate a genetic mechanism at play in the development of the neurodevelopmental disorder...

Low Birth Weight Ups Risk Of Autism
2011-10-17 12:50:58

University of Pennsylvania School of Nursing researchers have found a link between low birth weight and children diagnosed with autism. The researchers found that premature infants are five times more likely to have autism than children born at normal weight. The 862 children in the study were followed for 21 years after being born with a maximum birth weight of 4.4 pounds in New Jersey from September 1984 through July 1987. "As survival of the smallest and most immature babies...

Word of the Day
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'