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Biomedical Applications of Vibration and Acoustics in Therapy, Bioeffect and Modeling

Editor
Ahmed Al-Jumaily
Ahmed Al-Jumaily
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Azra Alizad
Azra Alizad
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ISBN-10:
0791802755
ISBN:
9780791802755
No. of Pages:
350
Publisher:
ASME Press
Publication date:
2008

Current treatments of neurological and neurodegenerative diseases are limited due to the lack of a truly non-invasive, transient, and regionally selective brain drug delivery method. The brain is particularly difficult to deliver drugs to because of the blood-brain barrier (BBB). The impermeability of the BBB is due to the tight junctions connecting adjacent endothelial cells and highly regulatory transport systems of the endothelial cell membranes. The main function of the BBB is ion and volume regulation to ensure conditions necessary for proper synaptic and axonal signaling. However, the same permeability properties that keep the brain healthy constitute the root of the difficulty in its pharmacological treatment. The BBB prevents most neurologically active drugs from entering the brain and, as a result, has been isolated as the rate-limiting factor in brain drag delivery. Until a solution to the trans-BBB delivery problem is found, treatments of neurological diseases will remain impeded. In this chapter, the role of focused ultrasound in the non-invasive and localized treatment of neurodegenerative disease is explored.

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