title: Opening of tight junctions in frog skin by hypertonic urea solutions.
mesh_terms: D000818:Animals; D001001:Anura; D001692:Biological Transport / Q000187:drug effects; D004553:Electric Conductivity; D004594:Electrophysiology; D004848:Epithelium / Q000187:drug effects; D006982:Hypertonic Solutions; D007700:Kinetics; D007811:Lanthanum / Q000378:metabolism*; D008854:Microscopy, Electron; D011868:Radioisotopes; D011894:Rana pipiens; D011896:Rana temporaria; D012867:Skin / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D012879:Skin Physiological Phenomena; D013268:Stimulation, Chemical; D014508:Urea / Q000494:pharmacology*
chemical_list: D006982:Hypertonic Solutions; D011868:Radioisotopes; D007811:Lanthanum; D014508:Urea