三七总皂苷抗炎作用机制的实验研究

以角叉菜胶（Ｃａｒ）２５ｍｇ／ｋｇ诱导大鼠气囊滑膜炎为模型，分别采用Ｌｏｗｒｙ法、试管稀释法，硫代巴比妥酸分光光度法，观察了三七总皂苷（ＰｎＳ）对气囊滑膜炎渗出液中蛋白含量、白细胞数量及脂质过氧化物丙二醛（ＭＤＡ）含量的影响，此外，采用细胞色素Ｃ还原法及放射免疫分析法，进一步观察了ＰｎＳ对渗出液中中性粒细胞（Ｎｅｕ）释放超氧阴离子（Ｏ２＾－）及其胞内ｃＡＭＰ含量的影响。结果发现：ＰｎＳ６０，１２０

Studies on Anti-Inflammatory Mechanisms of Saponin of Panax pseudo ginseng var notoginseng (Sanchi)

Effects of saponin of Panax pseudo-ginseng var. notoginseng (Burk.) Hoo et Tseng(PnS) on neutrophil (Neu) count, protein and malondialdehyde (MDA) contents in the exudate of rat a-cute air pouch synovitis model induced by sc injection of 25 mg/kg carrageenan were investigated by Lowryand test tube dilution methods and thiobarbituric acid spectrophotometry. Its effects on the intracellularcAMP content in and release of O2 from Neu were further assessed by radioimmunoassay and cytochromeC reduction methods respectively. The results showed that PnS 60,120,240 mg/kg ip reduced the migra-tion of Neu and exudation of protein, lowered the content of MDA and inhibited the release of O2- fromNeu; but elevated the cAMP content of Neu in a dose-dependent manner. These results revealed that Pnshas an obvious anti-inflammatory effect and its primary action was related to the increase of cAMP contentin Neu, followed by inhibition of the free radical production.