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Anesthesia and analgesia  (2010)

β2-adrenergic receptor-coupled phosphoinositide 3-kinase constrains cAMP-dependent increases in cardiac inotropy through phosphodiesterase 4 activation.

Gregg, Christopher J; Steppan, Jochen; Gonzalez, Daniel R; Champion, Hunter C; Phan, Alexander C; Nyhan, Daniel; Shoukas, Artin A; Hare, Joshua M; Barouch, Lili A; Berkowitz, Dan E