publication . Article . 2010

A biomechanical model of agonist-initiated contraction in the asthmatic airway

Antonio Z Politi; Oliver Jensen; Ian Hall; James Sneyd;
Open Access English
  • Published: 01 Jan 2010 Journal: Respiratory Physiology & Neurobiology, issue 1, pages 44-58 (issn: 15699048, Copyright policy)
  • Publisher: Elsevier B.V.
AbstractThis paper presents a modelling framework in which the local stress environment of airway smooth muscle (ASM) cells may be predicted and cellular responses to local stress may be investigated. We consider an elastic axisymmetric model of a layer of connective tissue and circumferential ASM fibres embedded in parenchymal tissue and model the active contractile force generated by ASM via a stress acting along the fibres. A constitutive law is proposed that accounts for active and passive material properties as well as the proportion of muscle to connective tissue. The model predicts significantly different contractile responses depending on the proportion ...
Medical Subject Headings: respiratory systemrespiratory tract diseases
free text keywords: Airway smooth muscle, Remodelling, Asthma, Airway narrowing, Physiology, Neuroscience(all), Pulmonary and Respiratory Medicine, General Neuroscience
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