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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Pediatr Res. 2009 Dec;66(6):682–687. doi: 10.1203/PDR.0b013e3181bce574

Figure 1. AC-cAMP-PDE3 pathway.

Figure 1

cAMP is synthesized by AC and degraded by PDE3. cAMP and cGMP compete for the PDE3 active sites, but cGMP is hydrolyzed more slowly than cAMP, resulting in PDE3 inhibition.