Respiratory Transport 31 articles
Stimulation of airway mucociliary transport and epithelial ciliary motility by the triazolopyridazin derivative TAK-225.
We measured mucociliary transport in the rabbit tracheal mucosa ex vivo and ciliary motility of the tracheal epithelium in vitro. Mucociliary transport function was determined by the transport rate of Evans blue dye that had been placed on the mucosal surface above the carina. Oral administration of...
Normal mechanisms of heat and moisture exchange in the respiratory tract.
The initial conditioning of the inhaled gases occurs in the upper respiratory tract. The conditioned gases are at approximately 32 degrees C and more than 95% relative humidity as they enter the lower respiratory tract. This level of heat and humidity will preserve the body's defense mechanisms. Whe...
Ventilation heterogeneity is increased in hypocapnic dogs but not pigs.
We compared the effects of hypocapnia on ventilation heterogeneity in pentobarbital-anesthetized, mechanically-ventilated dogs and pigs. Simultaneous multiple breath washouts of helium and nitrogen were used to assess the uniformity of the ventilation distribution by the phase III (SnIII) method. Ve...
Serial computed tomographic evaluation in desquamative interstitial pneumonia.
Some of the microcysts in DIP are different from the honeycomb cysts seen in UIP, and some of the cysts seen in patients with DIP resolve with time. DIP does not progress to UIP in the short term....
[The diagnostic potentials of studying the condensate of expired air].
The author provides the reported data on the mechanisms of water and macromolecular compounds transport to the surface of the air ways. To diagnose moisture secretory function of the lungs, use is made of a new method of collecting expired air condensate. Quantitative and qualitative alterations in...
Modeling airflow and particle transport/deposition in pulmonary airways
Relationship between changes in power spectra of electroencephalograms and arterial halothane concentration in infants.
A power spectral analysis of electroencephalograms (EEGs) was performed in 30 infants who underwent plastic surgery for cleft lip or cleft palate. The study was conducted to investigate whether there was a significant correlation between EEG changes and arterial halothane concentration in infants. T...
Ionic support of the cough reflex.
The aim of this study was to determine the role ofintra-wall nervous and neurohormonal system in the control of airway transport of sodium and chloride ions, as well as to identify regulating mechanisms having an effect on the permanent electric potential of airway tissue, named the transepithelial...
[Respiratory moisture loss and possible pathways of its regulation].
Examination of healthy men and those suffering from nonspecific pulmonary diseases has shown that respiratory moisture loss is induced by situation and While "lifting" examinees in the altitude chamber 5000 m upwards intensity of the moisture loss increases to 158%. Essential individual variations o...
Beyond anemia: the clinical impact of the physiologic effects of erythropoietin.
We have known that oxygen tension affects erythrocyte production since the 19th century, we have only recently begun to understand many subtleties of erythropoietin (EPO) physiology. EPO administration has allowed hundreds of thousands of patients to avoid transfusions. With the beneficial effects s...