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.
Concentration–effect curves for noradrenaline (NA) in isolated rat ventricular myocytes, determined in the presence and absence of the phosphodiesterase inhibitors milrinone (MLR, 3 µM, panel A) or rolipram (ROL, 3 µM, panel B). Some curves were determined during perfusion with the β2-adrenoceptor agonist salbutamol (SAL, 10 µM). Curve parameters are shown in Table 2.
