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A. WB assay showing protein expression of VEGF, PDGF, HIF-1α, Pax2 and CD133 in week 1, 2 and 4 postoperatively. Compared with the control group, PDGF, HIF-1α, Pax2 in EPCs group were significantly expressed in all time points, except VEGF in week 1 and CD133 in week 1, 2, 4. B. qPCR of VEGF, PDGF, HIF-1α and Pax2 assay showing significant gene expression of factors in all time points.
