This Article  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Donald F. Proctor, MD
The Johns Hopkins University School of Hygiene and Public Health 615 N Wolfe St Baltimore 21205

Arch Otolaryngol. 1970;92(4):411.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.

—The value of the studies described by Dr. Boyd lies not only in the development of "expectorant" drugs but in any light they may shed on the physiology and pathology of mucous secretion. With all of the work that has been done on mucociliary function, we still remain more or less in the dark regarding the nature of normal respiratory mucus and what factors control its rate of production and physical composition.

In evaluating his findings one wonders if the vapor pressure of inspired air was controlled or monitored and in what position the experimental animal was maintained. The latter question is pertinent in considering whether secretions were moved by ciliary action or by gravity.

One would hope that Dr. Boyd would incorporate mucociliary studies (Quinlan M, Salman S, Swift DL, et al: Measurement of mucociliary activity in man. Amer Rev Resp Dis99:13-23, 1969) in . . . [Full Text PDF of this Article]

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?