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. 2011 Dec 9;8(1):150–158. doi: 10.7150/ijbs.8.150

Table 1.

Comparison of action potential duration (APD) in each group.

Control Ma-L Ma-M Ma-H
APD50 (ms) 25.2±2.81 28.6±4.44 32.6±3.98* 51.4±5.89#
APD90(ms) 72.9±8.16 74.2±9.61 80,3±9.19* 95.5±9.01*
APD50/APD90 0.35±0.07 0.38±0.03 0.39±0.03* 0.54±0.06#

APD50 50% repolarization of action potential duration; APD90 90% repolarization of action potential duration (n = 8, P* < 0.05; P#<0.01)