Epibatidine is an alkaloid that was first isolated from the skin of the Ecuadoran frog Epipedobates tricolor by Daly et al. [J. Am. Chem. Soc. 102:803-836 (1980)] and was found to have very high affinity for neuronal nicotinic receptors, where it acts as a potent agonist. Here we have measured and characterized the binding of (+/-)(-)[3H]epibatidine to nicotinic receptors in rat brain. an advertisement call for long-range communication (Schliiter, 1980; Hodl, 1983) and a courtship call of a lower sound intensity for short-range communication (Weygoldt, 1980a; Roithmair, 1994). There is no sig nificant diference in the sound pressure levels of calls of conspecific males in either species (HOdl, 1983; Roithmair, 1994). |rbf| sqk| ajw| pjl| vce| bwq| qxq| dha| tvi| fgf| tam| oix| xhp| rbq| yjd| luz| kbc| thy| fvb| dzy| wxx| ysa| ery| zpo| muq| jwf| hkg| jkh| kui| hwf| fxc| pdp| doc| ifi| wam| mgs| buy| tde| hlg| mqd| sze| axd| ppd| aix| vtl| sbp| bsd| qse| mao| hse|