Taurine 20 mmol/L significantly increased the relaxation of Ami and reduced the contraction of Iso in aortic rings of rats aged 6 months.

• 牛磺酸可显著增强Ami对6月龄大鼠主动脉的舒张作用，拮抗Iso对6月龄大鼠主动脉的收缩作用，以20 mmol/L效应最佳。