There may be new treatments for stroke, migraine, Alzheimer’s and other brain disorders, thanks to the discovery of a mechanism for regulating brain blood flow made by researchers at the University of British Columbia.
Scientists found that astrocytes -- cells that surround nerve cells and all blood vessels in the brain -- have a primary role in regulating blood flow within the brain, and hold promise as a target for new therapies. The findings of the two-year study funded by the Canadian Institutes of Health Research (CIHR) and the Canadian Stroke Network were published this week in Nature by UBC post-doctoral fellow Sean Mulligan and Brian MacVicar, a professor in the Brain Research Centre and the Dept. of Psychiatry at UBC and an investigator with the Vancouver Coastal Health Research Institute (VCHRI).
Using a new technique that they developed to study brain blood flow, Mulligan and MacVicar found that a rise of calcium within the astrocytes instructs the blood vessels to constrict, which alters blood flow.
Hilary Thomson | EurekAlert!
The dense vessel network regulates formation of thrombocytes in the bone marrow
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Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers
Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...
Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.
At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...
3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects
A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
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