Objectives: To determined the localization of CB(1) and CB(2) receptors in rat bladder and investigate the effect of a mixed CB(1)/CB(2) receptor agonist, ajulemic acid (AJA), on chemically evoked release of the sensory neuropeptide calcitonin gene-related peptide (CGRP).
Methods: Whole rat bladders were incubated in a series of tissue baths containing physiologic salt solution to measure baseline CGRP release by enzyme immunoassay. Capsaicin (30 nM) and adenosine triphosphate (10 muM) were used to provoke CGRP release in the presence or absence of AJA.