摘要
补体激活引起的嗜中性粒细胞(PMN)聚集在器官的微血管内形成栓子,阻滞微循环血流;同时PMN激活引起氧自由基、花生四烯酸代谢产物和蛋白酶等释放,损伤血管内皮和实质细胞,是发生器官衰竭的重要原因。我们发现青藤碱和阿魏酸钠对阻止活化补体引起的PMN聚集有良好效果。青藤碱对PMN的半数抑制聚集量为0.76mg/ml(1.9mmol/L),阿魏酸钠的为0.82mg/ml(3.8mmol/L).药物浓度在2～25mg/ml之间时,药物剂量的对数与PMN聚集的抑制率之间有良好的量-效关系。
Complement-induced polymorphonuclearcytes (PMN) aggregate in microvasculature of vital organs, produce microemboli, and block microcirculation blood flow. Activated PMN release oxygen free radicals, prostaglandins and proteases, in turn, damage endothelial and parenchyma cells. This is an important factor in pathogenesis of multiple system organ failure. We have found that Sinomeuine and Sodium Ferulate prevented PMN aggregation induced by activated complement. Adding the drugs into PMN suspension treated with cytochalasin B, the zymosan activated plasma, PMN aggregation was prevented. The changes of light transmission were smaller than those of control without drugs recorded with platelet aggregometer. The 50% of PMN aggregation inhibition with Sinomeuine was 0.76mg/ml (1.gmmol/L), and 0.82mg/ml (3.8mmol/L) with Sodium Ferulate.
出处
《中国病理生理杂志》
CAS
CSCD
北大核心
1990年第1期19-22,共4页
Chinese Journal of Pathophysiology
基金
国家自然科学基金
