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Macromolecular transport through Porous arterial walls
Published in
2011
Volume: 91
   
Issue: 3
Pages: 267 - 282
Abstract
Arteries are heterogeneous, composite structures that undergo large cyclic deformations during blood transport. Presence, build-up and consequent rupture of blockages in blood vessels, called atherosclerotic plaques, lead to disruption in the blood flow that can eventually be fatal. Abnormal lipid profile and hypertension are the main risk factors for plaque progression. Treatments span from pharmacological methods, to minimally invasive balloon angioplasty and stent procedures, and finally to surgical alternatives. There is a need to understand arterial disease progression and devise methods to detect, control, treat and manage arterial disease through early intervention. Local delivery through drug eluting stents also provide an attractive option for maintaining vessel integrity and restoring blood flow while releasing controlled amount of drug to reduce and alleviate symptoms. Development of drug eluting stents is hence interesting albeit challenging because it requires an integration of knowledge of mechanical properties with material transport of drug through the arterial wall to produce a desired biochemical effect. Although experimental models are useful in studying such complex multivariate phenomena, numerical models of mass transport in the vessel have proved immensely useful to understand and delineate complex interactions between chemical species, physical parameters and biological variables. The goals of this review are to summarize literature based on studies of mass transport involving low density lipoproteins in the arterial wall. We also discuss numerical models of drug elution from stents in layered and porous arterial walls that provide a unique platform that can be exploited for the design of novel drug eluting stents.
About the journal
JournalJournal of the Indian Institute of Science
ISSN09704140
Open AccessNo
Concepts (38)
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    ARTERIAL DISEASE
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    ARTERIAL MECHANICS
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    ARTERIAL WALL
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    ATHEROSCLEROTIC PLAQUE
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    BALLOON ANGIOPLASTY
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    BIOCHEMICAL EFFECTS
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    BIOLOGICAL VARIABLES
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    Blood flow
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    Chemical species
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    Complex interaction
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    Cyclic deformations
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    DRUG ELUTION
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    DRUG-ELUTING STENTS
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    EARLY INTERVENTION
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    Experimental models
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    INTEGRATION OF KNOWLEDGE
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    LIPID PROFILE
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    Local delivery
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    LOW DENSITY LIPOPROTEINS
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    MACROMOLECULAR TRANSPORT
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    MATERIAL TRANSPORT
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    Minimally invasive
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    Numerical models
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    PHARMACOLOGICAL METHODS
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    Physical parameters
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    PLAQUE PROGRESSION
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    Risk factors
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    VESSEL INTEGRITY
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    Blood
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    Blood vessels
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    Disease control
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    Hemodynamics
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    MASS TRANSFER
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    Mechanical properties
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    Models
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    Numerical methods
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    Porous materials
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    Controlled drug delivery