26 April 2018 On trans-parenchymal transport after blood brain barrier opening: pump-diffuse-pump hypothesis
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Abstract
Transparenchymal transport attracted the attention of many research groups after the discovery of glymphatic mechanism for the brain drainage in 2012. While the main facts of rapid transport of substances across the parenchyma are well established experimentally, specific mechanisms that drive this drainage are just hypothezised but not proved yed. Moreover, the number of modeling studies show that the pulse wave powered mechanism is unlikely able to perform pumping as suggested. Thus, the problem is still open. In addition, new data obtained under the conditions of intensionally opened blood brain barrier shows the presence of equally fast transport in opposite durection. In our study we investigate the possible physical mechanisms for rapid transport of substances after the opening of blood-brain barrier under the conditions of zero net flow.
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D. E. Postnov, E. B. Postnikov, A. S. Karavaev, O. V. Glushkovskaya-Semyachkina, "On trans-parenchymal transport after blood brain barrier opening: pump-diffuse-pump hypothesis", Proc. SPIE 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV, 107171W (26 April 2018); doi: 10.1117/12.2315196; https://doi.org/10.1117/12.2315196
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