Our results demonstrate an increase in capillary density in the border zone of the infarct area after inhaled PT‐BsAbs treatment, and the pixel intensity of vWF+ was about 2.9‐fold of that in MI mice treated with i.v. injection of PT‐BsAbs and about 4.9‐fold of that in MI mice treated with PBS (p < 0.001 for both) (Figure 8g,h). This evidence concerns the gene VWF and myocardial infarction.