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L-精氨酸对应激性大鼠血压的影响 被引量:2

Effect of L-arginine on blood pressure in stress rats
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摘要 目的 :研究L 精氨酸 (L ARG)对应激性大鼠血压 (BP)的影响。方法 :给SD大鼠的饮水中添加L ARG ,并给予间断性足底电刺激 15d ,隔日监测尾动脉BP 1次 ,观察其尾动脉BP的变化情况和血浆一氧化氮 (NO)浓度变化。并与单纯应激组和正常对照组比较。结果 :单纯应激组在d 9、d 11、d 13、d15 ,BP升高 ,与正常对照组相比 ,差异有显著的统计学意义 (P <0 .0 5或P <0 .0 1) ;血中NO的浓度低于正常对照组 (P <0 .0 5 )。L ARG +应激组隔日测得BP与对照组相比 ,其差异无统计学意义 ,d 15BP低于正常对照组 (P <0 .0 5 ) ,BP呈下降趋势 ,NO明显升高 (P <0 .0 1)。结论 :L AIM: To observe the effect of L arginine on blood pressure (BP) in stress rats. METHODS: Thirty rats were divided into three groups. L ARG+stress group: L arginine was added in drinking water and electric stimulus were given intermittently in rat foot plate for 15 days; stress group: electric stimulus was given as above; control group: no stress. The BP levels of tail artery were measured per two days, and the concentrations of nitric oxide (NO) of plasma were detected on 15th day. RESULTS: There were significantly differences on BP between control group and stress group in the 9th,11th,13th,15th day(P<0.05 or P<0.01). After the stimulus in the stress group, the level of BP increased, the concentration of NO decreased (P<0.05). However, the BP did not show obvious difference between control group and L ARG +stress group. On the 15 th day, the BP level decreased in L ARG+stress group(P<0.05), and the concentration of NO was higher than that of control group (P<0.01). CONCLUSION: L ARG can resist the increase of BP in stress rats.
作者 尹艳茹 柏林
出处 《中国临床药理学与治疗学》 CAS CSCD 2002年第6期529-531,共3页 Chinese Journal of Clinical Pharmacology and Therapeutics
基金 广东省医学科学技术研究基金资助项目(A1999482 )
关键词 L-精氨酸 应激 血压 L arginine stress BP
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