Figure 5.

The effects of different concentrations of (a) isoprenaline, (b) terbutaline, (c) salbutamol and (d) salmeterol on [³H]-cyclic AMP formation (filled circles) and CRE-driven luciferase activity (open circles) in primary cultures of HASM cells (n=3–8). Each data point represents the mean±s.e.mean of data obtained in n individual experiments. Where error bars are not shown they lie within the data point. All data are shown as a percentage of the maximum [³H]-cyclic AMP (filled circles) or luciferase (open circles) response observed with 10 μM isoprenaline.