Navigation Links
Researchers at Hebrew University identify genetic systems disrupted in autistic brain
Date:5/1/2012

Jerusalem, April 30, 2012 -- Autism has a strong genetic basis, but so far efforts to identify the responsible genes have had mixed results. The reason for this is that autism is influenced by many different genes, and different genes are involved in different individuals, making it hard to find the common genetic ground between patients.

Now, research conducted at the Hebrew University of Jerusalem has shown that despite this fact, the different genes involved in autism tend to be involved in specific processes in the brain. This can explain, on the one hand, similarities in the behavioral symptoms of different autistics, but also the large spectrum of behaviors observed in different autistic individuals.

The Hebrew University research, conducted by Dr. Sagiv Shifman and his doctoral student Eyal Ben-David of the Department of Genetics at the Alexander Silberman Institute of Life Sciences, has potential implications for early diagnosis as well as for treatment of autism in the future. The study was recently published in the journal PLoS Genetics.

Autism spectrum disorders are neurodevelopmental syndromes characterized by social deficits, language impairments and repetitive behaviors. Recent studies indicate that autism is considerably more common than previously supposed, with a prevalence rate that is high as 1% in some regions.

The main goal of the Hebrew University project was to test the contribution of rare genetic mutations, as well as the genetic variations which are common in the population, and to see whether these different types of genetic risk factors are related. Instead of testing individual genes, the researchers chose to study gene collections, in an attempt to understand general pathways involved in autism.

To that end the scientists constructed a network based on the expression pattern of genes across different brain areas. This allowed them to discover groups of genes with shared function in the brain. Next, based on genetic data from thousands of families with autistic children, the researchers studied the contribution of different groups of genes to autism.

To their surprise, they found -- when looking at mutations found in autism as well as thousands of common gene variants that are more frequently seen in autistics -- that these mutations and variations are located in specific functional groups.

When looking at families with one autistic individual (sporadic cases), and in families where there is more than one affected individual (multiplex cases), the same variants were seen acting in both cases. These groups of genes are highly active in the first year of life, and are involved in processes of learning, memory, and sensory perception.

The Hebrew University scientists believe that their work could pave the way for large-scale genetic scans in the future that could allow for early diagnosis of autism. Further, the results of their study provide a ray of hope that by concentrating on specific gene groups, it will one day be possible to design drugs which could alleviate sympto


'/>"/>

Contact: Jerry Barach
972-258-82904
The Hebrew University of Jerusalem
Source:Eurekalert  

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers at Hebrew University identify genetic systems disrupted in autistic brain
(Date:3/24/2017)... , Mar 24, 2017 Research and ... Access System Market Analysis & Trends - Industry Forecast to 2025" ... ... to grow at a CAGR of around 15.1% over the next ... This industry report analyzes the market estimates and forecasts for all ...
(Date:3/23/2017)... 23, 2017 Research and Markets has announced ... & Trends - Industry Forecast to 2025" report to their ... The ... CAGR of around 8.8% over the next decade to reach approximately ... the market estimates and forecasts for all the given segments on ...
(Date:3/22/2017)... Optimove , provider of the ... as 1-800-Flowers and AdoreMe, today announced two new ... Using Optimove,s machine learning algorithms, these features allow ... recommendations to their customers based not just on ... intent drawn from a complex web of data ...
Breaking Biology News(10 mins):
(Date:5/24/2017)... WASHINGTON, DC, USA (PRWEB) , ... May 23, 2017 , ... ... the economy as well as an enabler of life-saving medical and other vital technologies ... and photonics . They joined others in the scientific community today in responding to ...
(Date:5/24/2017)... BOSTON , May 23, 2017 As Ebola ... with four deaths and 20 suspected cases now reported, ... via the PubMed database, showed a correlation between the 2014 ... gene Replikin counts rose sharply in 2012-13, which preceded the ... rise in the Ebola gene Replikin counts in 2014-15, which ...
(Date:5/23/2017)... ... ... A recent survey conducted by the Weed Science Society of America (WSSA) ranks ... of broadleaf crops, fruits and vegetables, while common lambsquarters ranks as the weed most ... the 2016 survey, the second conducted by WSSA. A 2015 baseline survey explored ...
(Date:5/23/2017)... , ... May 23, 2017 , ... ... this month its 20th anniversary, marking the occasion with a strong presence at ... meeting’s Welcome Reception and further extends an invitation to all attendees to view ...
Breaking Biology Technology: