Fig. 1From: Arginine vasopressin modulates electrical activity and calcium homeostasis in pulmonary vein cardiomyocytesEffects of arginine vasopressin (AVP) and its antagonist OPC 21268 and OPC 41061 on the spontaneous activity of pulmonary vein (PV) cardiomyocytes. a Examples and average data of spontaneous activity from control (n = 12) and from PV cardiomyocytes treated with either AVP (0.1 μM, n = 11), AVP (1 μM, n = 13), OPC 21268 (0.1 μM, n = 10), AVP (1 μM) plus OPC 21268 (0.1 μM) (n = 11), OPC 41061 (10 nM, n = 10), or AVP (1 μM) plus OPC 41061 (10 nM) (n = 12). b Expression of AVP V1a receptor (AVPR1a) and V2 receptor (AVPR2) on PV cardiomyocytes. *P < 0.05Back to article page