Figure 7. Blocking of α- and β-ARs mimics the reserpine-induced effect on cardiomyogenesis.

Fluorescence pictures of EBs treated with the unspecific α- and β-blockers phentolamine (10 µM) and propranolol (5 µM) and the combination of both showing the respective expression of GFP positive CMs on days 8 to 14 of differentiation. Left and the second to left column representing control and reserpine-treated EBs differentiated from the same passage, respectively. (Scale bars: 200 µm).