a trend towards significancep = 0.07
SRA staining (Figure 4 B, panel B) was 0.73 ± 0.25% in the proximal LAD and 0.26 ± 0.08% in the middle LAD which was significantly different (p = 0.035) by a 1-tail t test with a trend towards significance (p = 0.07 in a 2-tailed t test), and 0.74 ± 0.45% in the distal LAD which although higher than the middle LAD was not significantly different.