Table 1.
Parameters of surface electrocardiography (ECG) in age-matched (20 weeks old) Clcn3+/+ mice1 and hsCLC-3OE mice2 under control and myocardial ischemia and reperfusion conditions.
Clcn3+/+ (n=8) | hsCLC-3OE (n=6) | |||||
---|---|---|---|---|---|---|
Control | Ischemia | Reperfusion | Control | Ischemia | Reperfusion | |
ECG (Lead I) | ![]() |
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HR (bpm) | 400.9±0.9 | 379.3±7.4 | 293.2±16.3 | 403.4±1.5 | 427.10±20.6 | 338.6±45.2 |
P (ms) | 11.3±0.7 | 11.1±0.7 | 13.1±0.6 | 10.2±0.5 | 8.7±0.8 | 10.0±0.8* |
PR(ms) | 46.0±1.7 | 52.0±3.7 | 69.3±3.2†††, ‡ | 43.5±0.9 | 42.2±2.0 | 48.6±1.8**, † |
R-R (ms) | 149.7±0.4 | 158.6±3.1 | 206.5±11.1 | 148.7±0.5 | 142.2±7.1 | 185.9±22.1 |
QRS(ms) | 11.3±0.3 | 13.5±1.6 | 14.0±1.0†† | 10.2±0.6 | 12.3±1.2 | 11.5±0.8 |
QT (ms) | 26.5±1.2 | 62.4±2.9††† | 33.6±1.1††, ‡‡‡ | 21.7±1.1* | 45.9±4.6**, †† | 23.2±1.4***, ‡‡ |
QTc (ms) | 21.7±1.0 | 49.7±2.6††† | 23.4±0.7‡‡‡ | 17.8±0.9* | 38.5±3.9*, †† | 17.1±0.7***, ‡‡ |
HR, heart rate; bpm, beats per minute (min).
Clcn3+/+ mice: body weight 32.5±0.9 g;
hsCLC-3OE mice: body weight 29.80±2.38 g;
P<0.05,
P<0.01,
P<0.001vs Clcn3+/+ group;
P<0.05,
P<0.01,
P<0.001 vs control in the same group;
P<0.05,
P<0.01,
P<0.001 vs ischemia in the same group