Figure 8. Coicis semen promoted angiogenesis in HUVECs after OGD/RX through upregulation of the TGF-β1-ALK1-Smad1/5 signaling pathway. (A) Representative western blots showing TGF-β1, ALK1, Smad1/5, p-Smad1/5 and VEGF. Quantitative analysis of TGF-β1 (B), ALK1 (C), p-Smad1/5 (D), and VEGF (E) protein expression levels in HUVECs after OGD/RX. Mean ± SD. n = 8. aP < 0.05 vs. sham; bP < 0.05 vs. DMSO + OGD/RX; cP < 0.05 vs. LY2109761 + OGD/RX. Statistical analyses were performed by one-way ANOVA followed by Tukey’s multiple comparison tests.