Figure 7.
Concentration-dependent effects of heptanol (a–c), 18αGA (d) and 18βGA (e–f) on [Ca2+]i (open bars) and tension (filled bars). Arteries were activated with 10 μM noradrenaline, n=5 (a), 2 μM noradrenaline, n=4 (b), 125 mM potassium, n=5 (c), 2 μM noradrenaline, n=7 (d), 2 μM noradrenaline, n=10 (e) or 125 mM potassium, n=9 (f). Vertical bars indicate s.e.m.