Provided are electrokinetically-altered fluids (e.g., 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 digestive disorders or at least one symptom thereof. The electrokinetically-altered fluid compositions and methods include electrokinetically-altered ioinic aqueous fluids optionally in combination with other therapeutic agents. Particular aspects provide for regulating or modulating
intracellular signal transduction associated with said digestive disorders by modulation of at least one of cellular membranes,
membrane potential, membrane proteins such as membrane receptors, including but not limited to G-
Protein Coupled Receptors (GPCR), and intercellular junctions (e.g., tight junctions, gap junctions, zona adherins and desmasomes). Other embodiments include particular routes of administration or formulations for the electrokinetically-altered fluids and therapeutic compositions.