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Table 3 Analyses of ECG waves among all groups

From: Crocin attenuates cigarette smoke-induced lung injury and cardiac dysfunction by anti-oxidative effects: the role of Nrf2 antioxidant system in preventing oxidative stress

Parameters

Control

Crocin

COPD

COPD + Crocin

HR (bpm)

232.12 ± 11.46

237.50 ± 10.95

246.62 ± 15.81*

242.75 ± 6.13

RR Interval (S)

0.259 ± 0.01

0.253 ± 0.01

0.247 ± 0.006*

0.250 ± 0.01

QT Interval (ms)

61.15 ± 1.18

60.58 ± 0.76

58.65 ± 1.92**

60.82 ± 1.17†

QTc (ms)

119.69 ± 3.83

120.49 ± 1.99

118.94 ± 7.37

122.33 ± 2.87

QRS Complex (ms)

12.73 ± 0.45

12.51 ± 0.43

11.35 ± 0.84***

12.92 ± 0.44††

QRS Complex (mv)

0.53 ± 0.04

0.53 ± 0.06

0.49 ± 0.03

0.51 ± 0.04

ST Segment (ms)

14.39 ± 0.34

14.33 ± 0.45

13.71 ± 0.41*

14.52 ± 0.52††

  1. *P < 0.05, **P < 0.01 and ***P < 0.001, vs. Control, †P < 0.05 and ††P < 0.01 vs. COPD. All the groups were statistically compared by ANOVA followed by Tukey’s multiple comparison. Data are expressed as the mean + SEM, n = 8