Figure 1
Original recording of contractile force of the activity of a strip isolated from guinea-pigs tracheal smooth muscle in Mac Ewen solution and the effect of KCl (1A); of histamine (5-HT) (1B) and ACh (1C) in the presence of of Dichrostachys cinerea extract (Edici) in concentrations ranging from 1 mg/ml; 2 mg/ml to 10 mg/ml. The horizontal bar shows the time of recording and the vertical bar represents the magnitude of contractions. Concentration-response curves for Dichrostachys cinerea extract (Edici) in isolated tracheal preparations of guinea-pigs in the presence (O) of KCl (80 mM), of (◊) Histamine (5×10-4 mg/ml) and (●) ACh at a concentration of 1×10-1 mg/ml (Figure 1D)