Skip to main content

Table 2 In-vivo electrophysiological parameters

From: Titanium dioxide nanoparticles promote arrhythmias via a direct interaction with rat cardiac tissue

  Vehicle NPR
P wave (ms) 33.0 ± 0.22 28.9 ± 0.21**
PQ segment (ms) 24.2 ± 0.18 21.3 ± 0.21**
QRS complex (ms) 16.0 ± 0.09 15.2 ± 0.09**
QT interval (ms) 40.0 ± 0.28 31.1 ± 0.54**
RR interval (ms) 237.6 ± 0.90 231.3 ± 2.47
Rheobase (μA) 21.4 ± 1.68 20.6 ± 2.73
Chronaxie (ms) 0.75 ± 0.04 0.64 ± 0.04*
CVI (m/s) 0.63 ± 0.004 0.70 ± 0.004
CVt (m/s) 0.33 ± 0.002 0.32 ± 0.002
Anisotropy ratio 1.96 ± 0.01 2.33 ± 0.02**
  1. * p < 0.05 vs Vehicle **p < 0.005 vs Vehicle.