... secretion and electrical resistance but significantly decreased TEP K + secretion,consistent with the inhibition of electroneutral Na + /K + /2Cl – cotransport. TEP Na + secretion significantly increased because other Na + entry pathways remained active. Bumetanide plus Ba 2+ completely inhibited TEP...

.... The intracellular messenger of MNP is cAMP, which increases the Na + conductance and activates the Na + /K + /2Cl - -cotransporter in the basolateral membrane of principal cells. Leucokinin non-selectively increases transepithelial NaCl and KCl secretion, which may deal with hemolymph volume expansions or reduce...