Figure 2. Effect of Robinia pseudoacacia leaf extract (RP) on IL-1β– induced angiogenesis in aortic rings. (A) Representative images of outgrowth tubules from the aorta. (Scale bars: 250 μm). (B) Quantitative analysis of area under sprouts. The values are expressed as percentage of the IL-1β-treated control (error bars indicate±SEM; n=4; #p<0.05 compared with no-treatment control; **p<0.01 compared with IL-1β–treated control).
