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  • Title: The actions of methacholine, phenylephrine, salbutamol and histamine on mucus secretion from the ferret in-vitro trachea.
    Author: Webber SE, Widdicombe JG.
    Journal: Agents Actions; 1987 Oct; 22(1-2):82-5. PubMed ID: 3687600.
    Abstract:
    Methacholine, phenylephrine and histamine produced highly significant and salbutamol significant increases in the rate of mucus secretion from the ferret trachea. Methacholine, phenylephrine and histamine all produced highly significant increases in the rate of output of lysozyme, but the concentration of lysozyme in the mucus was significantly increased only by phenylephrine. Salbutamol produced no significant change in the output of lysozyme, and the concentration of lysozyme in the mucus was significantly decreased. It is concluded that methacholine, phenylephrine and histamine are potent stimulators of serous cell secretion whereas salbutamol has only a weak secretory action on these cells. Methacholine, histamine and salbutamol probably stimulate secretion from mucous cells as well as from serous cells. The increase in the concentration of lysozyme produced by phenylephrine may be due to stimulation of a fluid reabsorption mechanism.
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