showed a trendp = 0.07
Using Flk1 GFP/+ (WT-Flk1) [ 17 ] and CXCL12 Gagtm/Gagtm :Flk1 GFP/+ (KI-Flk1) mice, which have green fluorescent endothelial cells (ECs), cytometric analysis also showed a trend to an increase in the number of muscle ECs in the KI-Flk1 mice when compared to the WT-Flk1 mice ( p = 0.07; Additional file 2 : Figure S1E).