Effects of β-Adrenoceptor Subtypes on Cardiac Function in Myocardial Infarction Rats Exposed to Fine Particulate Matter (PM2.5)
Figure 2
Improved myocardial function after treatment of metoprolol, terbutaline, or combined metoprolol and terbutaline. (a) Left ventricular end-diastolic pressure (LVEDP) and left ventricular peak systolic pressure (LVSP) in sham, MI, and MI groups after treatment of metoprolol, terbutaline, or combined metoprolol and terbutaline. (b) Representative recordings of positive and negative values of the instantaneous first derivative of left ventricular pressure (±dP/dt) in sham, MI, and MI rats that underwent gavage of metoprolol, terbutaline, or metoprolol plus terbutaline. versus sham. versus MI.
