A perfusion system for in vitro measurement of human cilia beat frequency
نویسندگان
چکیده
منابع مشابه
Effect of Cilia Beat Frequency on Muco-ciliary Clearance
Background: The airway surface liquid (ASL), which is a ï‚uid layer coating the interior epithelial surface of the bronchi and bronchiolesis, plays an important defensive role against foreign particles and chemicals entering lungs.Objective: Numerical investigation has been employed to solve two-layer model consisting of mucus layer as a viscoelastic fluid and periciliary liquid layer as a New...
متن کاملEffects of morphine on human nasal cilia beat frequency in vitro.
Using human nasal cytological brushings, we have investigated the effects of morphine on ciliary function by measurement of cilia beat frequency in vitro, and we have also determined opioid receptor binding in these specimens. We obtained ciliated samples from seven volunteers, and measured cilia beat frequency using the transmitted light technique during exposure to morphine 10 mumol litre-1 f...
متن کاملeffect of cilia beat frequency on muco-ciliary clearance
background: the airway surface liquid (asl), which is a fluid layer coating the interior epithelial surface of the bronchi and bronchiolesis, plays an important defensive role against foreign particles and chemicals entering lungs. objective: numerical investigation has been employed to solve two-layer model consisting of mucus layer as a viscoelastic fluid and periciliary liquid layer as a newt...
متن کاملThe beat pattern and beat frequency of cilia and flagella
in many kinds of eukaryote are controlled by changes in intracellular Ca2+ concentration. Ciliary movement in Paramecium comprises two kinds of ciliary strokes, the effective stroke and the recovery stroke, and shows metachronal coordination (Machemer, 1972). When Paramecia meet an obstacle, their cilia reverse the direction of their beat, allowing the organism to swim backwards (Jennings, 1906...
متن کاملCa2+-dependent regulation of beat frequency of cilia in Paramecium.
Triton-extracted models of Paramecium cells prepared in the presence of Mg2+ and EGTA showed Ca2+ sensitivity not only in the direction of beat but also in the beat frequency of cilia. The beat frequency increased over a range of concentration of Ca2+ from 2 X 10(-7) to 4 X 10(-7) M, in which the model swam forwards. The frequency increased also above 10(-6)M-Ca2+, in which the model swam backw...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1996
ISSN: 0007-0912
DOI: 10.1093/bja/76.1.111