Figure 1
Effects of β-BA on ACh-mediated relaxation of mesenteric artery rings with or without endothelium.
Mesenteric artery rings of blood stasis rats were isolated after oral administration with β-BA (100 mg/kg/d or 200 mg/kg/d) for 7 times. β-BA induced relaxation in aortic rings with (a) or without endothelium (b) was determined. The tension responsible for the vascular relaxation and constriction was tested. The contraction was induced by 0.5 mM phenylephrine. The results are expressed as percentage of relaxation for comparison with the remaining controlled tension (Mean ± SEM, n = 8). Experimental groups: control (■), model (⧫), model + β-BA 200 mg/kg (▲), model + β-BA 100 mg/kg (×). ##p < 0.01 versus the control group, #p < 0.05 versus the control group, **p < 0.01 versus the model group, *p < 0.05 versus the model group.
