A and B: Recordings of APs from SHR neurons under the following sequential treatments: Perfusion of PBS, followed by superfusion of Ang II (100 nmol/L); Washout of Ang II; Superfusion of gp91ds-tat (gp91ds, 5 μmol/L) or scrambled gp91ds-tat (Scra, 5 μmol/L); Superfusion of Ang II (100 nmol/L) plus gp91ds-tat (Ang II + gp91ds) or scrambled gp91ds-tat (Ang II + Scra).
C: Bar graph summarizing the effects of gp91ds-tat on the chronotropic action of Ang II in SHR and WKY rat neurons. Data are mean ± SE (n=11). *P<0.01 compared with respective control recordings. #P<0.05 compared recordings between SHR and WKY rat neurons under the same condition. D: Bar graph summarizing the effects of scrambled gp91ds-tat (5 μmol/L) on the chronotropic action of Ang II in SHR and WKY rat neurons. Data are mean ± SE (n=7). *P<0.01 compared with respective control recordings. #P<0.05 compared recordings between SHR and WKY rat neurons under the same condition.