摘要
目的:观察静脉注射清开灵、甲基强的松龙(MP)注射液及其联合用药对油酸型急性肺损伤(ALI)家兔的影响。方法:家兔随机分为11组:对照组,油酸组,治疗组分别包括清开灵和MP注射液以及清开灵+MP注射液小、中、大剂量组。iv油酸(0.05mL·kg-1)复制家兔ALI模型后,立即iv上述药液,观察给予油酸前及以后30,60,120min时的呼吸频率和幅度,于各时间点测定动脉血气含量;实验后处死家兔取肺组织,测定肺组织LDH,CAT和MDA的含量,及观察病理变化。结果:与油酸组比较,清开灵和MP注射液小、中、大剂量组的呼吸幅度显著升高、呼吸频率显著降低(P<0.05);治疗30min时,清开灵+MP注射液小、大剂量组的PaO2显著升高(P<0.05),120min时,清开灵、MP及清开灵+MP注射液小、中和大剂量组的PaCO2显著降低(P<0.05);清开灵、MP注射液中、大剂量组的LDH显著升高、CAT和MDA显著降低(P<0.05);清开灵+MP小、中剂量组可以减轻由油酸引起的病理改变。结论:清开灵+MP小剂量对油酸型肺损伤家兔的疗效优于同剂量下的单独用药;而清开灵或MP大剂量单独给药的疗效优于同剂量下的联合用药。
Objective: To investigate the effect of Qingkailing and Methylprednisolone(MP) injection alone or combined on the acute lung injury(ALI) induced by oleic acid in rabbits. Method: The rabbits were randomly divided into 11 groups: oleic acid group; control group; treatment groups including low, middle and high dosage groups of Qingkailing and MP alone and combined, respectively. ALI model was established by iv oleic acid (0.05 mL·kg^(-1)) in these groups, and then iv above drugs respectively,while in control group, the same volume of normal saline was given. The respiratory amplitude and rate were observed, and blood samples were taken from cervical artery for blood-gas analysis before and at 30, 60, 120 min after oleic acid or normal saline administration. At the end of experiment, the concentration of LDH,CAT and MDA in the lung tissue were measured and pathologic changes of lung tissue were observed microscopically. Result: Compared with oleic acid group, the respiratory amplitude markedly enhanced (P<0.05) and respiratory rate lowered(P<0.05) in the low, middle and high dose groups of Qingkailing and MP injection. On the 30 min of treatment, PaO_(2) increased significantly(P<0.05) in the low and middle dose groups of combined Qingkailing and MP injection;PaCO_(2 )decreased markedly(P<0.05)on the 120 min of treatment in each treatment group. The level of LDH significantly increased(P<0.05), CAT and MDA decreased(P<0.05) in the middle and high groups of Qingkailing and MP injection. The low and middle dose groups of combined Qingkailing and MP injection can alleviate the pathological changes induced by oleic acid. Conclusion: The curative effect of the low dose group of combined Qingkailing and MP for the ALI induced by oleic acid was better than Qingkailing and MP alone, while the big dose groups of Qingkailing and MP alone better than the combination at the same dosage.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2005年第10期769-773,共5页
China Journal of Chinese Materia Medica
基金
"十五"攻关项目(2001BA701A66)
