We've updated our Privacy Policy to make it clearer how we use your personal data.

We use cookies to provide you with a better experience. You can read our Cookie Policy here.

Advertisement
Scientists catch brain damage in the act
News

Scientists catch brain damage in the act

Scientists catch brain damage in the act
News

Scientists catch brain damage in the act

Read time:
 

Want a FREE PDF version of This News Story?

Complete the form below and we will email you a PDF version of "Scientists catch brain damage in the act"

First Name*
Last Name*
Email Address*
Country*
Company Type*
Job Function*
Would you like to receive further email communication from Technology Networks?

Technology Networks Ltd. needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these communications at any time. For information on how to unsubscribe, as well as our privacy practices and commitment to protecting your privacy, check out our Privacy Policy

Scientists have uncovered how inflammation and lack of oxygen conspire to cause brain damage in conditions such as stroke and Alzheimer's disease.


The discovery, published March 13 in Neuron, brings researchers a step closer to finding potential targets to treat neurodegenerative disorders.


Chronic inflammation and hypoxia, or oxygen deficiency, are hallmarks of several brain diseases, but little was known about how they contribute to symptoms such as memory loss.


The study used state-of-the-art techniques that reveal the movements of microglia, the brain's resident immune cells. Brain researcher Brian MacVicar had previously captured how they moved to areas of injury to repair brain damage.


The new study shows that the combination of inflammation and hypoxia activates microglia in a way that persistently weakens the connection between neurons. The phenomenon, known as long-term depression, has been shown to contribute to cognitive impairment in Alzheimer's disease.


"This is a never-before-seen mechanism among three key players in the brain that interact together in neurodegenerative disorders," says MacVicar with the Djavad Mowafaghian Centre for Brain Health at the University of British Columbia (UBC) and Vancouver Coastal Health Research Institute.


"Now we can use this knowledge to start identifying new potential targets for therapy."


A video of describing the findings, including microscopy footage of how microglia repair brain damage, is available on YouTube here.


Note: Material may have been edited for length and content. For further information, please contact the cited source.

University of British Columbia press release


Publication

Jingfei Zhang, Aqsa Malik, Hyun B. Choi, Rebecca W.Y. Ko, Lasse Dissing-Olesen, Brian A. MacVicar. Microglial CR3 Activation Triggers Long-Term Synaptic Depression in the Hippocampus via NADPH Oxidase. Neuron, Published March 13 2014. doi: 10.1016/j.neuron.2014.01.043


Advertisement