Table 1 Change in beat-to-beat blood pressure variability in the, VLF, LF and HF domain (expressed as % of baseline values) after i.v. administration of low and high dose of carvedilol, nebivolol, atenolol and verapamil in SAD rats

From: Acute effects of third generation β-blockers on short-term and beat-to-beat blood pressure variability in sinoaortic-denervated rats

 

Atenolol

Carvedilol

Nebivolol

Verapamil

 

0.3 mg kg 1

3 mg kg 1

0.1 mg kg 1

1 mg kg 1

0.3 mg kg 1

3 mg kg 1

0.3 mg kg 1

3 mg kg 1

Total power density

−3.8±5.4

8.6±5.8

−39.7±8.6*,#

−56.3±5.9*

−21.4±3.3

−28.9±5.6*

−11.3±2.7

−58.7±5.8*

VLF

3.9±3.5

11.8±2.9

−41.4±8.6*

−54.2±5.1*

−17.52±10.3

−35.9±8.8*

−14.2±3.6

−57.9±6.3*

LF

−1.3±2

3.3±9.5

−39.9±8.4*,§,#

−60.2±4.9*

−11.9±4.9

−29.1±6.5*

−13.2±3.5

−59.1±5*

HF

−1.3±2.7

8.8±6.2

−26.1±9.1

−52.7±7*

−7.6±8

−22.9±7.2*

−11.1±1.9

−52.2±5.5*

  1. Abbreviations: HF, high frequency; LF, low frequency; SAD, sinoaortic denervated; VLF, very low frequency.
  2. Each bar shows the mean±s.e.m. of six rats. *P<0.05 vs. atenolol; §P<0.05 vs. nebivolol; #P<0.05 vs. verapamil by one-way ANOVA followed by Bonferroni’s post hoc- test.