The effects of D-polymannuronic sulfate (DPS) on the norepinephrine (NA) or potassium chloride (KCL)-induced contraction of rat aortic rings were studied in this paper.

• 本文观察了海洋硫酸多糖DPS对去甲肾上腺素（NA）和氯化钾（KCl）所致大鼠主动脉环收缩反应的影响。