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(A and B) Effects of VPA on mRNA expression of VEGF, VEGFR2 and bFGF. mRNA expression was detected by semi-quantitative RT-PCR, and PCR products were separated on agarose gels. Lanes 1 and 2, control groups; lanes 3 and 4, VPA-treated groups; VPA, valproic acid; VEGF, vascular endothelial growth factor; bFGF, basic fibroblast growth factor; VEGFR2, VEGF receptor 2.
