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Opening Up the Brain with Ultrasound

Thu, 04/21/2011 - 8:35pm
Massachusetts Institute of Technology

The cells lining the brain's blood vessels are tightly packed together—like a good defensive line, they keep bacteria and other blood-borne intruders from getting through, shielding the brain. But this protective layer, called the blood-brain barrier, also thwarts efforts to deliver drugs like chemotherapy agents to the brain, so scientists have long searched for ways to disrupt it selectively to allow treatments in. A startup company called Perfusion Technology is developing a technique to open this barrier by bathing the brain in ultrasound waves.

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