Table 1: Protein expression of VEGF165 in mesenchymal stem cells supernatant after transfection ( , ng/mL).

GroupsProtein expression of VEGF165
24 h48 h72 h

(1) The blank control group
(2) The control group A
(3) The control group B
(4) The control group C
(5) The UTMD group * * *

* , versus each other non-UTMD groups.
(1) The blank control group: MSCs with culture fluid.
(2) The control group A: 4 μg pcDNA3.1-hVEGF165 recombinant were transfected into MSCs.
(3) The control group B: 4 μg pcDNA3.1-hVEGF165 recombinant mixed with 300 μl SonoVue microbubble were transfected into MSCs.
(4) The control group C: 4 μg pcDNA3.1-hVEGF165 recombinant were transfected into MSCs by ultrasonic exposure (illustrated by the example of Mechanic index (MI) 1.0 and exposure time (ET) 60 s).
(5) The UTMD group: 4μg pcDNA3.1-hVEGF165 recombinant were transfected into MSCs by UTMD (MI 1.0, ET 60 s).