| OT | oxytocin |
| OTR | oxytocin receptor |
| OTRA | oxytocin receptor antagonist |
| cAMP | adenosine-3′,5′-cyclic monophosphate |
| CREB | cAMP response element binding protein |
| PKA | protein kinase A |
| PKC | protein kinase C |
| Gi | inhibitory GTP-binding regulators of adenylate cyclase |
| PLC | phospholipase C |
| DAG | diacylglycerol |
| IP3 | inositol 1,4,5-trisphosphate |
| ICa.L | L-type Ca2+ channel current |
| NO | nitric oxide |
| ANP | atrial natriuretic peptide |