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Scientists finally get past the blood-brain barrier to treat cancer

Posted in Science on 5th Mar, 2016 01:25 PM by AlexMuller
The brain's defenses have long thwarted doctors from treating cancer. Your body has an excellent defense system for keeping toxins out of the brain; the blood-brain barrier. But this border patrol also keeps drugs out, which presents a real problem for treating tumors and other maladies.
In November, a team from Sunnybrook Health Sciences Centre in Toronto hacked the system by creating temporary new entrances. Doctors injected microscopic air bubbles into a cancer patient’s bloodstream, and then focused sound waves onto blood vessels near the growth. This caused the bubbles to vibrate violently, poking holes in the barrier just big enough for a chemotherapy drug to pass through. These holes closed back up hours later.
This method could also enable targeted drug treatments for diseases such as Alzheimer’s or Parkinson’s. “It opens up a whole world of possibilities,” says neurosurgeon Todd Mainprize, the team’s lead researcher. “We could treat things we couldn’t treat before.”

Tags: braindrugcancerresearchmedicineoncology

Read original article » Back to category


Author: Guest
Posted: 2016-03-06
Yes, remarkable! Making blood-brain barrier penetrable for drugs without damaging permanently its protective function is the key for many treatments, not just brain tumours Reply


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