Skip to main content
. Author manuscript; available in PMC: 2018 Feb 13.
Published in final edited form as: J Cardiovasc Pharmacol Ther. 2015 Jun 30;21(1):114–126. doi: 10.1177/1074248415590440

Figure 1.

Figure 1

Expression levels of β3-adrenoceptor (β3-AR) and electrophysiological measurements in rapid atrial pacing (RAP) rabbits. A-C, Expression levels of β3-AR messenger RNA (mRNA) and protein were determined by real-time polymerase chain reaction (PCR and Western blot. D, A representative bipolar recording of atrial effective refractory period (AERP)200ms in the β3-AR antagonist (L748337) group: the premature stimulus (S2) failed to generate a response after a train of 8 basic stimuli (S1); the S1S2 value was 92 milliseconds. E, AERP200ms was determined at a representative basic cycle length of 200 milliseconds. F, Atrial fibrillation (AF) was registered as a rapid and irregular atrial rhythm with varied atrial electrogram morphology. A, C, and E, Data are presented as mean ± standard deviation (SD). *P < .05 versus control (CON) group; **P < .01 versus CON group; #P < .05 versus pacing (P7) group; ##P < .01 versus P7 group.