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FACS analysis of HemECs and HemSCs treated with 100μM propranolol for 48 hours. (Top panel) Propranolol treatment of HemECs increased Annexin V levels on the cell surface. (Bottom panel) Annexin V levels were not altered in HemSCs, suggesting a lack of apoptotic response in HemSCs. Black line indicates control; gray line indicates propranolol treatment.
