Biomaterial Database

Effect of orally administered orciprenaline on tracheobronchial mucociliary clearance. 1986

D B Yeates, and D M Spektor, and B R Pitt

The relative effects of beta-2-adrenergic stimulation of mucociliary transport in the trachea and the bronchial airways was determined in 12 healthy non-smoking males using radioaerosol techniques with and without the oral administration of 20 mg of orciprenaline. Orciprenaline increased tracheal mucociliary transport rates (TMTR) from a control mean of 4.4 +/- 2.4 mm/min to 6.6 +/- 4.0 mm/min (p less than 0.01), but the percentage of particles cleared from the lung in 2 h was not significantly different in the drug study (44 +/- 14%) compared to the control study (48 +/- 19%). Furthermore, a strong positive correlation existed between TMTR and bronchial clearance that was lost after administration of orciprenaline. This study demonstrates that low doses of orally administered orciprenaline increased tracheal mucociliary transport but not bronchial clearance in healthy adults.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009093	Mucus	The viscous secretion of mucous membranes. It contains mucin, white blood cells, water, inorganic salts, and exfoliated cells.
D009921	Metaproterenol	A beta-2 adrenergic agonist used in the treatment of ASTHMA and BRONCHIAL SPASM.	Orciprenaline,Alotec,Alupent,Astmopent,Metaprel,Metaproterenol Polistirex,Metaproterenol Sulfate,Orciprenaline Sulfate,Polistirex, Metaproterenol
D001980	Bronchi	The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.	Primary Bronchi,Primary Bronchus,Secondary Bronchi,Secondary Bronchus,Tertiary Bronchi,Tertiary Bronchus,Bronchi, Primary,Bronchi, Secondary,Bronchi, Tertiary,Bronchus,Bronchus, Primary,Bronchus, Secondary,Bronchus, Tertiary
D002923	Cilia	Populations of thin, motile processes found covering the surface of ciliates (CILIOPHORA) or the free surface of the cells making up ciliated EPITHELIUM. Each cilium arises from a basic granule in the superficial layer of CYTOPLASM. The movement of cilia propels ciliates through the liquid in which they live. The movement of cilia on a ciliated epithelium serves to propel a surface layer of mucus or fluid. (King & Stansfield, A Dictionary of Genetics, 4th ed)	Motile Cilia,Motile Cilium,Nodal Cilia,Nodal Cilium,Primary Cilia,Primary Cilium,Cilium,Cilia, Motile,Cilia, Nodal,Cilia, Primary,Cilium, Motile,Cilium, Nodal,Cilium, Primary
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D014132	Trachea	The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi.	Tracheas