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. Author manuscript; available in PMC: 2016 Sep 15.
Published in final edited form as: Eur J Pharmacol. 2015 May 14;763(0 0):223–232. doi: 10.1016/j.ejphar.2015.05.014

Figure 2.

Figure 2

Temporal relationship of cAMP accumulation as a result of the activation of Gαi/o-coupled receptors. Initial activation of Gαi/o-coupled receptors leads to a decrease in cAMP production, however, persistent activation leads to heterologous sensitization and a subsequent enhancement in cAMP production that is readily observed by removing the Gαi/o agonist and stimulating the adenylyl cyclase.