Effect of different fractions against aduit Schistosoma japonicum worms in vitro.

aRPMI 1640 medium and 1% DMSO in RPMI 1640 medium were used as negative control groups. bPraziquantel (PQZ, 30 ug/ml) was used as positive control groups. Data are presented as the mean of four experiments. cNumber of worms tested. 1Drug group compared with RPMI 1640, 1%DMSO negative control group, both P values<0.05; 2Drug group compared with PZQ positive group, both P values<0.05;