Effect of Bt2 cyclic AMP (A) and Bt2 cyclic GMP (B) on the eosinophil chemotaxis induced by PAF (1 ÁM) (open circles) or LTB4 (0.1 ÁM) (closed circles). Eosinophils were treated with drugs or vehicles for 30 min. The results are expressed as means ▒ S.E.M. of 4-6 independent experiments done in duplicate. * p<0.05 indicates statistical significance as compared to control group.
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