Abstract
This study aimed to evaluate the vascular endothelial growth factor (VEGF) expression and permeability of vascular endothelial cell under microvibration. Human umbilical vein endothelial cell (HUVEC) were cultured, randomly vibrated under low frequency of 0.2, 0.5, 2, 5 Hz, 30 min per day. The VEGF mRNA level was detected by Tagman probe real-time fluorescence quantitative polymerase chain reaction (PCR), and the VEGF protein expression level was detected by Western blot. The permeability of vascular endothelial cell was evaluated. Compared with the blank control group, the mRNA and protein expression level of VEGF were significantly increased under 0.2, 0.5 Hz thelial, and increase the permeability microvibration (P<0.05), and decreased under 2, 5 Hz microvibration (P<0.01). The vascular endothelial permeability in creased under 0.2, 0.5 Hz microvibration (P<0.01), whereas the permeability decreased under 2, 5 Hz microvibration (P<0.01). 0.2-0.5 Hz microvibration can up-regulate the expression of VEGF mRNA and protein in vascular endothelial, and increase the permeability.
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