期刊
JOURNAL OF THEORETICAL BIOLOGY
卷 274, 期 1, 页码 52-57出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2011.01.014
关键词
Peristaltic wave; Hydraulic permeability; Darcy's law; Convection-enhanced delivery; Lubrication approximation
Perivascular space (PVS) within the brain is an important pathway for interstitial fluid (ISF) and solute transport. Fluid flowing in the PVS can affect these transport processes and has significant impacts on physiology. In this paper, we carry out a theoretical analysis to investigate the fluid mechanics in the PVS. With certain assumptions and approximations, we are able to find an analytical solution to the problem. We discuss the physical meanings of the solution and particularly examine the consequences of the induced fluid flow in the context of convection-enhanced delivery (CED). We conclude that peristaltic motions of the blood vessel walls can facilitate fluid and solute transport in the PVS. (C) 2011 Elsevier Ltd. All rights reserved.
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