Table 1 Electrocardiogram (ECG) parameters of control, bulk, and the three ZnO NP-treated groups (T1, T2, and T3).
Animal groups | |||||||
|---|---|---|---|---|---|---|---|
Control | Bulk | T1 | T2 | T3 | |||
HR (beats/min) | Mean ± SE | 441 ± 6.4 | 434 ± 8.0 | 423.5 ± 2.2 | 414 ± 7 | 373.6 ± 4.2a* | |
% of change | A | − 1.5% | − 4% | − 6.1% | − 15.3% | ||
B | − 2.4% | − 4.6% | − 13.9% | ||||
PR interval (s) | Mean ± SE | 0.041 ± 0.004 | 0.048 ± 0.004a* | 0.049 ± 0.003a* | 0.05 ± 0.005a* | 0.057 ± 0.001ab** | |
% of change | A | + 17% | + 19.5% | + 21.95% | + 39% | ||
B | + 2.08% | + 4.16% | + 18.75% | ||||
R-amplitude (mv) | Mean ± SE | 0.358 ± 0.02 | 0.436 ± 0.02 a* | 446 ± 0.02a* | 0.46 ± 0.03a* | 0.491.02a** | |
% of change | A | + 21.7% | + 24.6% | + 28.5% | + 37.15% | ||
B | + 2.14% | + 3.13% | + 10% | ||||
T-amplitude (mv) | Mean ± SE | 0.258 ± 0.02 | 0.259 ± 0.03 | 0.26 ± 0.02 | 0.266 ± 0.02 | 0.283 ± 0.016 | |
% of change | A | + 0.4% | + 0.8% | + 3.1% | + 9.7% | ||
B | + .38% | + 2.7% | + 9.2% | ||||
