Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Cumulative concentration-dependent effect of isoprenaline (ISO) on rapid delayed rectifier K+ (IKr) tail current amplitude studied in eight myocytes. (B,C) Effects of 100 nM ISO in the presence of 100 nM metoprolol (n= 6) and 300 nM CGP-20712A (n= 4). IKr amplitudes were normalized to their respective control values. Columns and bars indicate means ± SEM. *Denotes significant (P < 0.05) differences from control (100%) determined using paired t-test.
