Navigation Links
How the demons of dementia possess and damage brain cells
Date:3/3/2010

A study from EPFL's (Ecole Polytechnique Fdrale de Lausanne) Laboratory of Neuroenergetics and Cellular Dynamics in Lausanne Switzerland, published today in the Journal of Neuroscience, may lead to new forms of treatment following a better understanding of how Amyloid-Beta found in cerebral plaques, typically present in the brain of Alzheimer's patients, may lead to neurodegeneration. Researchers in Lausanne have studied how the functions of certain cells called astrocyteswhich normally protect, repair, and transfer energy to neuronsare impaired when "possessed" by aggregated Amyloid-Beta.

Alzheimer's disease currently affects more than 26 million people worldwide and estimates of up to four times as many sufferers by 2050 has made studying its causes a top priority for neuroscientists.

While the exact mechanisms by which the formation of plaques occurs and how they cause neurodegeneration and dementia is still a matter of debate in the scientific world, this study sheds a new light on how astrocytes may participate in the development of Alzheimer's disease. This new understanding of the interaction between Amyloid-Beta and astrocytes could lead to more effective therapies for Alzheimer's disease by trying to rescue astrocytic functions by deactivating the scavenger receptors.

The current study explores the causal relationship between the build-up of the Amyloid-Beta protein, associated with the formation of plaques, and the impairment of astrocyte's functions. Pierre Magistretti, director of the Brain Mind Institute and the Center for Psychiatric Neurosciences at CHUV/UNIL, and Igor Allaman, post doctoral fellow in Magistretti's lab, have succeeded in determining how built-up Amyloid-Beta infiltrates the astrocyte cells and alters their proper functioning, thus leading to the death of surrounding neurons. "To penetrate the astrocyte, the pathological protein goes through a 'scavenger' receptor." explains Igor Allaman. "Our study has shown that if we impair Amyloid-Beta build-up, or activation of this receptor, astrocytes continue to fulfill their normal neuroprotective functions even in the presence of the Amyloid-Beta."


'/>"/>

Contact: Michael Mitchell
michael.mitchell@epfl.ch
41-798-103-107
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert  

Related biology news :

1. Aware, Inc. Joins HIMSS10 Interoperability Showcase to Demonstrate Standards-Based Medical Image Sharing
2. Researchers demonstrate nanoscale X-ray imaging of bacterial cells
3. Munich lab demonstrates diesel truck engine with barely measurable emissions
4. Scientists demonstrate link between genetic defect and brain changes in schizophrenia
5. Ben-Gurion University Alzheimers researcher demonstrates specific immune response to vaccine
6. Case Western Reserve University researcher demonstrates that messenger RNA are lost in translation
7. Scientists demonstrate importance of niche differences in biodiversity
8. University of Leicester geologists demonstrate extent of ancient ice age
9. Demonstration Features Commercial Technology for Combating Terrorism
10. Demonstration Features Commercial Technology for Combating Terrorism
11. Combating Terrorism with Commercial Technology: 2009 Force Protection Equipment Demonstration
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How the demons of dementia possess and damage brain cells
(Date:6/7/2016)... June 7, 2016  Syngrafii Inc. and San ... relationship that includes integrating Syngrafii,s patented LongPen™ eSignature ... This collaboration will result in greater convenience for ... union, while maintaining existing document workflow and compliance ... ...
(Date:6/1/2016)... YORK , June 1, 2016 ... Technology in Election Administration and Criminal Identification to Boost ... to a recently released TechSci Research report, " Global ... By Region, Competition Forecast and Opportunities, 2011 - 2021", ... 24.8 billion by 2021, on account of growing security ...
(Date:5/9/2016)... -- Elevay is currently known as the ... high net worth professionals seeking travel for work   ... there is still no substitute for a face-to-face meeting. ... deal with a firm handshake. This is why wealthy ... citizenship via investment programs like those offered by the ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... NEW YORK , June, 23, 2016  The ... students to envision new ways to harness living systems ... of Modern Art (MoMA) in New York ... more than 130 participating students, showcased projects at MoMA,s ... included Paola Antonelli , MoMA,s senior curator of ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry Network for ... Design Lab . Located in Pasadena, Calif., the Design Lab’s mission is to ... are designed, built and brought to market. , The Design Lab is Supplyframe’s ...
(Date:6/23/2016)... ... June 23, 2016 , ... In a new case ... Denmark detail how a patient who developed lymphedema after being treated for breast cancer ... could change the paradigm for dealing with this debilitating, frequent side effect of cancer ...
(Date:6/23/2016)... Calif. , June 23, 2016  Blueprint Bio, ... biological discoveries to the medical community, has closed its ... Matthew Nunez . "We have received ... with the capital we need to meet our current ... essentially provide us the runway to complete validation on ...
Breaking Biology Technology: