showed a trendP = 0.07
As for cytokines associated with both angiogenesis and arteriogenesis, the gene expression level of FGF-2 was significantly higher ( P < 0.01) and that of PIGF showed a trend to be higher ( P = 0.07) in the SB group, whereas that of VEGF was not significantly different ( P = 0.92) compared with the no-treatment group (Fig. 4A–C).