alexa Sound Waves Can Heal Brain Disorders

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Sound Waves Can Heal Brain Disorders

The brain is surrounded by organized defenses. In addition to the skull, the cells that make up the blood-brain barrier keep pathogens and toxic substances from reaching the central nervous system. The protection is bliss, except when we need to deliver drugs to treat illnesses. Novel methods are being employed by researchers to penetrate these bastions: sound waves. Kullervo Hynynen, a medical physicist at Sunnybrook Research Institute in Toronto, and a team of physicians are trying out a technique that involves giving patients a drug followed by an injection of microscopic gas-filled bubbles. Next patients put a cap that directs sound waves to specific brain locations, an approach called high-intensity focused ultrasound. The waves cause the bubbles to vibrate, temporarily forcing apart the cells of the blood-brain barrier and allowing the medication to infiltrate the brain. Hynynen and his colleagues are currently testing whether they can use the method to deliver chemotherapy to patients with brain tumors. Physicians are also considering high-intensity focused ultrasound as an alternative to brain surgery. Patients with movement disorders such as Parkinson's disease and dystonia are increasingly being treated with implanted electrodes, which can interrupt problematic brain activity. A team at the University of Virginia hopes to use focused ultrasound to deliver thermal lesions deep into the brain without having patients go under the knife. “Using ultrasound to make lesions in the body is not a new concept; however, it's been limited for the brain because of the contours, density and thickness of the skull,” says neurologist and study investigator Binit Shah

 

www.omicsonline.org/ brain-disorders-journals-conferences-list.php

 

 
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