Fig. 3

The effect of KH pre-treatment on HMC-1 with (A) AH, (B) BH, (C) EH, and (D) RH on the level of β-hexosaminidase released. HMC-1 cells were pre-treated without (normal control) or with respective KH for 1 h and followed by 2 h induction with PMACI. The cromolyn sodium treatment group was used as a positive control. β-hexosaminidase released was quantified by following previous published protocol. Results obtained from three repeated independent experiments are expressed as mean \(\pm\) standard error of mean (SEM). * P < 0.05, ** P < 0.01, *** P < 0.005 as compared to the induced control group (black bars)