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Beta 2-adrenergic regulation of urea permeability of the Bufo bufo bladder
1Institute of General Physiology, University of Bari, Italy.
Abstract:
1. Isoprenaline strongly increases the urea permeability of the bladder of Bufo bufo. This effect is due to its interaction with beta 2-adrenoreceptors, activating, in turn, the adenyl cyclase. 2. In order to ensure the regulation of urea permeability, the isoprenaline effect is present even in pathophysiological conditions, inhibiting the vasopressin action.
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