… affected by buffers of intracellular calcium, whereas the … calcium entering via voltage-dependent
calcium channels and acting on docked vesicles in the neighbourhood of the channel is …

… A 2B receptors, and APNEA is an A 3 -selective receptor agonist … adenosine receptor subtype
that mediates inhibition ofI Ca , we tested the effects of these three agonists on the rod I Ca …

… calcium channels. It is known, however, that the activity of these channels can be modulated
not only by adenosine receptors … In particular, we showed recently that calcium channels of …

… the adenosine receptor rather … calcium channels can also affect adenosine receptors. The
potency of the compounds for this effect is much lower than their potency as calcium channel …

… calcium-releasing agents19may prove to be valuable in probing the role of the intracellular
calcium-sensitive calcium channels … at which caffeine blocks adenosine receptors. Xanthines …

… and antagonists of adenosine receptors have been discovered, … the roles of the various
adenosine receptor subtypes, and in the … of adenosine receptor modulators considerably closer. …

… Caffeine is not known to block extracellular receptors other than adenosine receptors at
the dosage level (-100 mg/kg/day) employed in the present study. Thus, effects of chronic …

… , receptors were classified in accordance with their preference for binding either adenosine
(P, receptor … rat A,, AR has been reported to activate calcium channels via stimulation of …

… that adenosine inhibits operation of L-type calcium channels in GH4 … Furthermore, it is shown
that adenosine released from cells or … may exert a tonic inhibitory effect on calcium currents. …

… can both inhibit Ca 2+ channels and activate GIRK channels. We find that modulation of Ca
2+ channels and GIRK channels by GABA B and adenosine receptor agonists is unchanged …