人参二醇组皂甙对失血性休克犬血清5-HT的影响及对血小板的保护作用  

Effcts of the panaxadiol saponins on serum 5-HT and platelets in dog with hemorrhagic shock

作　　者：赵丹[1] 赵雪俭[1] 林桦[1] 王忠山[1] 潘力[2] 王石林[2] 邵春杰[3] 徐景达[3] 

机构地区：[1]白求恩医科大学病生教研室 [2]白求恩医科大学电镜研究室 [3]白求恩医科大学有机化学教研室

出　　处：《中国病理生理杂志》1992年第1期50-54,共5页Chinese Journal of Pathophysiology

摘　　要：健康成年杂种犬29只,分为失血性休克人参预治疗组(HSG)10只,失血性休克地塞米松预治疗组(HSD)10只,失血性休克组(HS)9只。失血前1小时,HSG组静注人参二醇组皂甙(25mg/kg),HSD组肌注地塞米松(1mg/kg)。在实验过程中经放、输血,使血压维持于5.3kPa(40mmHg)。结果表明,(1)扫描电镜显示,人参二醇组皂甙与地塞米松对血小板形态均有明显保护作用,并抑制其聚集;(2)血清5-HT含量,HS组随失血时间延长逐渐增高。HSG组失血后第1、3小时虽有增高,但第4、5小时则逐渐回降到正常水平,HSD组失血前后均无显著改变。5-HIAA,HS组失血后3～5小时显著增加,HSG和HSD组失血前后比较均无显著改变。提示人参二醇组皂甙和地塞米松对失血性休克时5-HT和5-HIAA的增加有抑制作用。Experiments were performed on 29 healthy mongrel dogs with average body weight of 13±2.2kg. The animals were randomly divided into three groups:(1) nine dogs in the hemorrhagic shock group(HS); (2) tendogs in the panaxadiol saponin pretreatement group (HSG), which were intravenously injected with 25mg panaxadiol saponin 1 h before bleeding; (3) In the dexamethasone pretreatment group, othet ten dogs were intramuscularly injected with 1 mg/kg body wt of dexamethasone 1 h before bleeding. The mean arterial pressure of 5.3 kPa was kept during experimental period. The morphological changes of platelet were observed with scanning electromicroscope. The results showed that the platelet damage was much lighter in HSP and HSD gnoups than that of the HS group. The seum 5-HT content of HS group gradually increased hemorrhage with time delay. In the HSG group,the 5-HT level was increased from 1 and 3 h after bleeding,then it was decreased at 4 and 5 h. In the HSD group 5-HT level didn′t show any change from prebleeding to postbleeding. However, in the HS group 5-HIAA concentration increased significantly from 3rd to 5th hour after bleeding in the HS group,but was not in the HSG and HSD groups. These findings suggest that the panaxadiol saponins and dexamethsone can effecti vely inhibit the increasing of 5-HT and 5-HIAA levels in the themorrhagic shock.

关 键 词：休克 失血性 皂甙类 5-羟色胺 

分 类 号：R364.4[医药卫生—病理学]