Table 2: Atrio-ventricular conduction. Extension of PQ interval in relation to time following different doses of Tinuvin 770 in dogs T1-T7 symbols represent 1, 3.3, 6.6, 10, 33.3, 66.6, and 100 mg of Tinuvin 770, respectively. Statistically significant differences are marked with bold numbers and * (P<0.05).
| Time (minutes) | 
Vehicle | 
T1 dose | 
T2 dose | 
T3 dose | 
T4 dose | 
T5 dose | 
T6 dose | 
| 0 | 
0,114±,003 | 
0,118±,003 | 
0,114±,003 | 
0,117±,004 | 
0,120±,003 | 
0,118±,004 | 
0,124±,004 | 
| 3 | 
0,113±,003 | 
0,120±,004 | 
0,117±,004 | 
0,119±,005 | 
0,120±,004 | 
0,125±,004* | 
0,129±,006* | 
| 6 | 
0,114±,003 | 
0,123±,003* | 
0,119±,003 | 
0,120±,004 | 
0,122±,004 | 
0,125±,004* | 
0,135±,006* | 
| 9 | 
0,114±,003 | 
0,122±,004 | 
0,120±,004 | 
0,119±,004 | 
0,122±,004 | 
0,126±,005* | 
0,136±,007* | 
| 12 | 
0,114±,003 | 
0,119±,003 | 
0,119±,004 | 
0,119±,004 | 
0,123±,004* | 
0,128±,004* | 
0,135±,007* | 
| 15 | 
0,114±,003 | 
0,118±,003 | 
0,117±,004 | 
0,117±,004 | 
0,122±,004 | 
0,125±,004* | 
0,135±,008* |