Results 21 to 30 of about 654,486 (255)

Mucociliary clearance: pathophysiological aspects

open access: yesClinical Physiology and Functional Imaging, 2013
SummaryMucociliary clearance has long been known to be a significant innate defence mechanism against inhaled microbes and irritants. Important knowledge has been gathered regarding the anatomy and physiology of this system, and in recent years, extensive studies of the pathophysiology related to lung diseases characterized by defective mucus clearance
Munkholm, Mathias, Mortensen, Jann
openaire   +4 more sources

Volatile anesthetics and mucociliary clearance.

open access: yesMinerva anestesiologica, 2008
The aim of this prospective, randomized, double blind study was to evaluate the possible modification of in vivo nasal mucociliary clearance by three different volatile agents: sevoflurane, isoflurane and desflurane, following intravenous induction and tracheal intubation.Following institutional approval and informed consent, 60 patients scheduled for ...
Kutluhan, AHMET   +5 more
openaire   +3 more sources

Mucociliary clearance in bronchiectasis

open access: yes
The mucociliary clearance system is the first defence of the respiratory tract against inhalation of foreign material. Most patients with bronchiectasis have mucociliary dysfunction.
Lidia Perea, Amelia Shoemark
openaire   +2 more sources

SARS-CoV-2 infection induces the dedifferentiation of multiciliated cells and impairs mucociliary clearance

open access: yesNature Communications, 2021
Understanding how SARS-CoV-2 spreads within the respiratory tract is important to define the parameters controlling the severity of COVID-19. Here we examine the functional and structural consequences of SARS-CoV-2 infection in a reconstructed human ...
R. Robinot   +24 more
semanticscholar   +1 more source

Dysfunctional mucociliary clearance in asthma and airway remodeling - New insights into an old topic.

open access: yesRespiratory Medicine, 2023
Bronchial asthma is a heterogeneous respiratory condition characterized by chronic airway inflammation, airway hyperresponsiveness and airway structural changes (known as remodeling).
M. Jeseňák   +8 more
semanticscholar   +1 more source

On the role of viscoelasticity in mucociliary clearance: a hydrodynamic continuum approach

open access: yesJournal of Fluid Mechanics, 2023
We present numerical and analytical predictions of mucociliary clearance based on the continuum description of a viscoelastic mucus film, where momentum transfer from the beating cilia is represented via a Navier-slip boundary condition introduced by ...
A. Choudhury   +4 more
semanticscholar   +1 more source

Modelling mucociliary clearance [PDF]

open access: yesRespiratory Physiology & Neurobiology, 2008
Mathematical modelling of the fluid mechanics of mucociliary clearance (MCC) is reviewed and future challenges for researchers are discussed. The morphology of the bronchial and tracheal airway surface liquid (ASL) and ciliated epithelium are briefly introduced. The cilia beat cycle, beat frequency and metachronal coordination are described, along with
Smith, D, Gaffney, E, Blake, JR
openaire   +4 more sources

Regional Differences in Mucociliary Clearance in the Upper and Lower Airways

open access: yesFrontiers in Physiology, 2022
As the nasal cavity is the portal of entry for inspired air in mammals, this region is exposed to the highest concentration of inhaled particulate matter and pathogens, which must be removed to keep the lower airways sterile.
T. D. Rogers   +7 more
semanticscholar   +1 more source

Impact of smoking on nasal mucociliary clearance time in Kano metropolis, Nigeria

open access: yesWorld Journal of Otorhinolaryngology-Head and Neck Surgery, 2023
Background Mucociliary clearance is an important defense mechanism in human upper and lower respiratory airways. Impairment of this process by certain conditions such as cigarette smoking can predispose to chronic infection and neoplasm of the nose and ...
Ahmad Mahmud   +7 more
doaj   +1 more source

Prediction of nasal spray drug absorption influenced by mucociliary clearance

open access: yesPLoS ONE, 2021
Evaluation of nasal spray drug absorption has been challenging because deposited particles are consistently transported away by mucociliary clearance during diffusing through the mucus layer.
Yi-Dan Shang   +5 more
semanticscholar   +1 more source

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