Figure 7.

Myocardial regeneration in a treated mouse. (A) Mouse heart 21 days after infarction and injection of mCSC. Human myocardium (arrowheads) is present within the infarct (MI). BZ, border zone. Areas in rectangles are shown at higher magnification below. Human myocytes are α-SA- (red) and Alu- (green) positive. Asterisks indicate spared mouse myocytes. (B) Human myocytes and vessels show, at most, two human X-chromosomes (X-Chr, white dots; arrowheads). Mouse X-Chr (magenta dots; arrows) are present in myocytes at BZ [1].