The Journal of General Physiology
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The Journal of General Physiology, Vol 42, 69-82, Copyright © 1958 by The Rockefeller University Press

ARTICLE

THE EFFECTS OF AIR IONS ON THE LIVING MAMMALIAN TRACHEA

Albert P. Krueger 1 and Richard F. Smith 1

1 From the Department of Bacteriology, University of California, Berkeley

Studies on the effects of air ions on the functional efficiency of the extirpated tracheal strip have been extended to the trachea of the living rabbit, rat, and mouse. Animals exposed to high mobility (+) air ions administered via a tracheotomy aperture displayed: (a) Decreased ciliary activity. (b) Decline in mucus flow rate, sometimes reversed by prolonged exposure to (+) ions; a frequent drop in the volume of mucous secretion. (c) Contraction of the membranous posterior tracheal wall. (d) Increased vulnerability to trauma of cilia and mucosal blood vessels.

Similar treatment with (-) air ions reversed (+) ion effects on ciliary activity, mucus flow, contraction of the tracheal smooth muscle. Continued (-) ion treatment raised the ciliary rate (invariably) and the mucus flow rate (often) above their initial levels.

(+) Air ions administered to unoperated resting mice and rats increased the respiratory rate; (-) ions reversed this effect.

Long exposure of unoperated ambulatory mice to (+) air ions produced: (a) Decreased ciliary activity. (b) No clear cut effect on mucus flow. (c) Contraction of the posterior tracheal wall. (d) Increased vulnerability of the mucosa to trauma. (-) Air ions increased ciliary activity but had no clear-cut effect on the mucus flow rate.

Submitted on March 3, 1958


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 The Journal of the Royal Society for the Promotion of HealthHome page
A. P. Krueger and R. F. Smith
The Physiological Significance of Positive and Negative Ionization of the Atmosphere
The Journal of the Royal Society for the Promotion of Health, January 1, 1959; 79(5): 642 - 648.
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