摘要
目的 :研究了调脂新 (TZX)对高脂大鼠一氧化氮 /内皮素、6 keto PGF1a/血栓烷及血液流变学的影响。方法 :用高脂乳剂喂饲 40d以形成大鼠高脂血症及动脉粥样硬化模型 ,同时给药组ig调脂新 40、80g/kg ,测定血中NO、ET 1、6 keto PGF1、TXB2 及血液流变学各指标。结果 :调脂新对正常及高脂大鼠血清NO水平有一定升高 ,明显降低ET 1水平 ,大剂量能显著升高 6 keto PGF1a含量 ,有利于维持 6 keto PGF1a PGF1/TXB2 平衡 ;可降低全血比粘度、全血还原比粘度、血浆比粘度 ,降低RBC聚集指数、压积 ,缩短RBC电泳时间 ,并能降低纤维蛋白原含量 ,对ADP诱导的正常大鼠血小板聚集 ,亦有一定的抑制作用。结论 :调脂新改善高脂大鼠血液流变学异常、恢复NO/ET、6 keto PGF1a/TXB2 平衡 ,可能是其抗动粥作用的机制之一。
Objective: To study the influences of Tiaozhixin(TZX) on NO/ET, 6 keto PGF 1a /TXB 2 and hemorrheology rats with hyperlipoidemia. Methods: The rat hyperlipoidemia and early atheroscleorsis models were established by feeding high lipid diet for 40 days. Meanwhile TZX was taken by oral administration at the dosages of 40、80g/kg. The levels of NO、ET 1、6 keto PGF 1a and TXB 2 in serum were determind, and the hemorrheology markers were observed. Results: TZX could raise the levels of NO in serumobviourly ET 1 level of the normal and model rats. The large dose of TZX could increase 6 keto PGF 1a content remarkably which benefits maintenance of the balances of 6 keto PGF 1a /TXB 2. It could lower the whole blood specific viscosity, whole blood reduction specific viscosity, plasma specific viscosity; aggregation index of RBC; shorten RBC electrophoresis time; also decrease fibrinogen content; inhibit the platelet aggregation of normal rats induced by ADP. Conclusion: TZX can improve the abnormal hemorrheology and recover the balance of TXB 2/6 keto PGF 1a and NO/ET of rats with hyperlipoidemia, which might be one of mechanisms of antiatherosclerosis action.
出处
《中成药》
CAS
CSCD
北大核心
2001年第3期196-199,共4页
Chinese Traditional Patent Medicine
