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PLoS By Category | Recent PLoS Articles
Biotechnology - Radiology and Medical Imaging

Noninvasive, Transient and Selective Blood-Brain Barrier Opening in Non-Human Primates In Vivo
Published: Friday, July 22, 2011
Author: Fabrice Marquet et al.

by Fabrice Marquet, Yao-Sheng Tung, Tobias Teichert, Vincent P. Ferrera, Elisa E. Konofagou

The blood-brain barrier (BBB) is a specialized vascular system that impedes entry of all large and the vast majority of small molecules including the most potent central nervous system (CNS) disease therapeutic agents from entering from the lumen into the brain parenchyma. Microbubble-enhanced, focused ultrasound (ME-FUS) has been previously shown to disrupt noninvasively, selectively, and transiently the BBB in small animals in vivo. For the first time, the feasibility of transcranial ME-FUS BBB opening in non-human primates is demonstrated with subsequent BBB recovery. Sonications were combined with two different types of microbubbles (customized 4–5 µm and Definity®). 3T MRI was used to confirm the BBB disruption and to assess brain damage.
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