Pioneering Neuroscientists Breach the Blood-Brain Barrier

The blood-brain barrier is a natural defense, keeping us safe from bacterial infections—but it prevents some brain treatments. Now a Canadian team has found a way to break through. Microscopic bubbles smaller than red blood cells that can pass seamlessly through the circulatory system are produced in a patient’s bloodstream. For the first time doctors have broken through the blood-brain barrier in order to treat a brain disease non-invasively. Neurosurgeon Todd Mainprize of the Hurvitz Brain Sciences Program at the Sunnybrook Health Sciences Centre in Toronto, with the support of other neuroscientists, pioneered the revolutionary new method. The blood-brain barrier is a natural defense mechanism that prevents germs and some chemicals already present in the bloodstream from reaching the brain. While the barrier normally serves to keep us safe from…


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