Panel A: Representative traces (A1) and statistical analysis (A2) of atractylodin-induced stimulatory effects on the contractility of jejunal segment in 5 low contractile states. Panel B: Representative traces (B1) and statistical analysis (B2) of atractylodin-induced inhibitory effects on the contractility of jejunal segment in 5 high contractile states. Contractile amplitude of jejunal segments in normal contractile state is set to a relative value of 100% ( normal control, NC). Other data are the relative values compared with NC. Data are expressed as mean±SD (% NC, n=6); **p<0.01 compared with the NC; ##p<0.01 compared with contractile amplitude of jejunal segments in LCS (low contractile state) or HCS (high contractile state) before being given atractylodin, respectively. NC, normal control; SNP, sodium nitroprusside; AD, adrenaline; ACh, acetylcholine; ERY, erythromycin.