B2. The IL-1β level of rats in each group measured by ELISA.
	Sham	HI	HI+S	F value	DF
IL-1β (ng/L)	0±0	26.1±2.4*	17.7±1.7**	369.4	2

One-way ANOVA was used to compare the mean difference among the three groups. Tukey’s multiple comparisons test was used for post hoc test.

^*p<0.001 between sham group and HI group,

^**p<0.001 between HI group and HI+S group.