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This work presents experimental results combined with model-dependent predictions regarding the osmotic-permeability regulation of human aquaporin 1 (hAQP1) expressed in Xenopus oocyte membranes. Membrane elastic properties were studied under fully controlled conditions to obtain a function that relates internal volume and pressure. This function was used(More)
The regulated Cl(-) secretory apparatus of T84 cells responds to several pharmacological agents via different second messengers (Ca(2+), cAMP, cGMP). However, information about water movements in T84 cells has not been available. In the absence of osmotic or chemical gradient, we observed a net secretory transepithelial volume flux (J(w) = -0.16 +/- 0.02(More)
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