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Therapeutic delivery into the brain parenchyma is difficult due to the presence of the blood-brain barrier (BBB). One potential solution is to use cell-penetrating peptides (CPPs). CPPs are short peptides made up of primarily positively charged amino acids that have the ability to transduce cell membranes and deliver cargoes to cells. It is unclear, however, whether CPPs can penetrate cell barriers,...
Delivery of therapeutic compounds to the brain is limited, because due to their molecular size they cannot cross the blood-brain barrier (BBB). Focused ultrasound (FUS) after administration of microbubbles into the blood-stream has been shown to open the BBB locally, non-invasively and reversibly. In this study, we investigated the time required for BBB's permeability at the sonicated region to revert...
The therapeutic efficacy of neurological agents is severely limited, because large compounds do not cross the blood-brain barrier (BBB). Focused ultrasound (FUS) sonication in the presence of microbubbles has been shown to temporarily open the BBB, allowing systemically administered agents into the brain. Until now, polydispersed microbubbles (1-10 ??m in diameter) were used, and, therefore, the bubble...
The delivery of gadolinium through the ultrasound- induced blood-brain barrier (BBB) openings of mice was investigated. The left hippocampus of mice (n=13) was sonicated (frequency: 1.525 MHz, pressure amplitude: 0.64 MPa, duty cycle: 20%, duration: 1 minute) in vivo through the intact skin and skull after the injection of pre-formed microbubbles (SonoVuereg; 25-30 mul). The BBB opening in mice was...
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