Provided are electrokinetically-altered fluids (gas-enriched (e.g.,
oxygen-enriched) electrokinetic fluids) comprising an ionic
aqueous solution of charge-stabilized
oxygen-containing nanostructures in an amount sufficient to provide, upon contact with a
cell, modulation of at least one of
cellular membrane potential and
cellular membrane conductivity, and therapeutic compositions and methods for using same in treating
cystic fibrosis or a symptom thereof. The electrokinetically-altered fluid compositions and methods include electrokinetically-altered fluids optionally in combination with other therapeutic agents (e.g.,
antibiotics, albuterol,
budesonide, etc.). Particular embodiments comprise use and / or
synergy with
tobramycin for treating bacterial infection, and use and / or
synergy with a bronchiodilator. In certain aspects, the methods comprise regulating
intracellular signal transduction by modulation of at least one of cellular membranes,
membrane potential, membrane proteins (like, membrane receptors, including but not limited to
G protein coupled receptors, and intercellular junctions).