Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Gene hunt in dyslexia

13.10.2008
Letters are warped, syllables left out – about four percent of the German population are dyslexics. Scientists seek to spot responsible genes and try to develop a genetic screening test to support affected children at an earlier age.

Scool? Skuul? Or perhaps shcool? The beginning is a delicate time – especially in reading and writing. Twisted letters or other beginner´s mistakes disappear quite fast as learning progresses. Nevertheless about four percent of German schoolchildren struggle very hard with written words.

What is the cause for such a reading and writing disorder called dyslexia? “Dyslexia is not a matter of low intelligence. It is mainly caused genetically, as twin-studies have shown,” explains Arndt Wilcke, scientist at the Fraunhofer Institute for Cell Therapy and Immunology (IZI) in Leipzig. Relief could be rendered by a special support for affected children: the German free state of Saxony, for example, maintains classes for dyslexics, beginning with third grade of elementary education. Usually, the disorder is not noticed before the children learn to read and to write at the age of six to eight, but the largest part of speech development is already completed by this time. An accepted thesis is: the earlier a disposition to dyslexia is detected, the better are chances of success for remedial therapy. Supported at kindergarten age, most predisposed children learn reading and writing quite successfully.

Scientists at the IZI now try to improve the early discovery of dyslexia. “We are trying to find out which genes cause the disease. A predisposition to dyslexia could be detected by a genetic test to support affected children appropriately at a very early age,” says Wilcke.

The hypothesis of the IZI scientists is: during brain development at the embryonic stage nerve cells are migrating to their designated positions routed by specific genes. If these are defective the nerve cells do not go far enough or to the wrong places. This could be a cause for dyslexia. Evidence for responsible “dyslexia genes” is already existing. The first steps towards a genetic test have been taken, but more time will be needed to reach this aim – five years would be a realistic guess for Wilcke.

Arndt Wilcke | alfa
Further information:
http://www.fraunhofer.de/EN/press/pi/2008/10/ResearchNews102008Topic1.jsp

Further reports about: Cell Therapy Genetic IZI dyslexia dyslexia genes low intelligence nerve cells

More articles from Life Sciences:

nachricht Decoding the genome's cryptic language
27.02.2017 | University of California - San Diego

nachricht New risk factors for anxiety disorders
24.02.2017 | Julius-Maximilians-Universität Würzburg

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New pop-up strategy inspired by cuts, not folds

27.02.2017 | Materials Sciences

Sandia uses confined nanoparticles to improve hydrogen storage materials performance

27.02.2017 | Interdisciplinary Research

Decoding the genome's cryptic language

27.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>