Research Article

Effects of β-Adrenoceptor Subtypes on Cardiac Function in Myocardial Infarction Rats Exposed to Fine Particulate Matter (PM2.5)

Figure 1

Echocardiographic imaging demonstrated improved myocardial function after treatment of metoprolol, terbutaline, or combined metoprolol and terbutaline. (a) Representative M-mode short axis views in sham, MI, and MI groups after treatment of metoprolol, terbutaline, or combined metoprolol and terbutaline. (b) Percentage of fractional shortening (FS%) and ejection fraction (EF%) calculated from short axis views. (c) Values of LVESD and LVEDD in sham, MI, and MI rat after treatment of metoprolol, terbutaline, or combined metoprolol and terbutaline. versus sham. versus MI.
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