What question did this study set out to answer?

To review the physiological pathways and cellular mechanisms governing active ion transport across the human respiratory epithelium.

Human Airway Ion Transport. Part One

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To review the physiological pathways and cellular mechanisms governing active ion transport across the human respiratory epithelium.
Synthesized in vitro and in vivo electrophysiological data measuring transepithelial potential difference and short-circuit current across human airway tissues.
Evaluated the biophysical properties and regulatory mechanisms of apical sodium and chloride channels in normal airway epithelial cells.
Active sodium absorption via apical epithelial sodium channels generates the primary osmotic driving force for fluid reabsorption in resting airway surfaces.
Chloride secretion driven by cyclic adenosine monophosphate-dependent channels provides counter-regulatory hydration to sustain optimal mucus layer viscosity and clearance.

Scientific review synthesizes ion transport pathways across human airway epithelium, highlighting regulation of mucosal hydration.

"Human airway ion transport. Part one.." American journal of respiratory and critical care medicine, 150(1), pp. 271–281

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Richard C. Boucher (1994) studied this question.

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Scientific review synthesizes ion transport pathways across human airway epithelium, highlighting regulation of mucosal hydration.

"Human airway ion transport. Part one.." American journal of respiratory and critical care medicine, 150(1), pp. 271–281