Fig. 5.

Quantification of capillary sprouting per vessel type after bFGF (A–C) and VEGF stimulation (D–F). For each growth factor stimulation experiment the numbers of sprouts per vessel type length after 3 days in culture were compared across experimental groups: control (MEM alone), MEM + growth factor (GF), MEM + GF + NG2 antibody, and MEM + GF + Rabbit IgG. The rabbit IgG groups controlled for potential nonspecific antibody binding effects. *Significance against the control group (P < 0.05). +Significance against the growth factor group (P < 0.05). Values are means ± SE.