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Figure 5 Incorporation of 14C-uridine (Uri) and RNA mass (RNA/DNA ratio) of cardiomyocytes cultured in presence of phenylephrine (PE, 10 µmol/liter), norepinephrine (NOR, 1 µmol/liter), or NOR and atenolol (ATE, 1 µmol/liter). Cells were incubated with the agonists for 6 h in case of RNA synthesis and 24 h in case of RNA mass. Data are expressed as percentages relative to the control values. Data are means ± SEM from n = 6 cultures. * = p < 0.05 vs. C; # = p < 0.05 vs. NOR. Open bars = PE; filled bars = NOR; hatched bars = ATE + NOR.
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