Fig. 5

Inhibitory effect of the wood essential oil and five oil fractions on β-hexosaminidase release. VE: vehicle, DMSO; NC: negative control, 800 ng/mL DNP-IgE and 10 μg/mL DNP-BSA treated group; PC: positive control, 100 nM dexamethasone treated group, an oil fraction (A–F) (0.08 μg/mL). Values are presented as mean ± standard deviation. *p < 0.05 and **p < 0.01 compared with VE; and ^#p < 0.05, ^##p < 0.01 compared with NC