Abstract:
The immeditate-type of allergic asthma animal model was established in sensitized guinea pigs by inhalation with ovalbumin. Respiratory impedance(Zrs),activity of Ca
2+-ATPase in lung tissue,effect of anisodamine (654-2) and verapamil on them were observed,The results sho-wed that Zrs in asthma group was increased than that in normal group (
P<0.01),that activity of Ca
2+-ATPase in lung tissue of asthma group was lower than that of normal group (
P<0.01).The results suggested that decrease of Ca
2+-ATPase activity in lung tissue may be an important factor in the pathogenesis of the allergic asthma. The increase of intracellular Ca
2+may relate to decrease of Ga
2+-ATPase activity.Anisodamine can increase Ca
2+-ATPase activity.Verapamil has no effect on Ca
2+-ATPase activity.