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作 者:吕帅国[1,2] 卢锡华[3] 董铁立[1] 张清勇[2] 李廷坤[3] 杨现会[1]
机构地区:[1]郑州大学第二附属医院麻醉科,450014 [2]郑州大学第二附属医院胸外科,450014 [3]郑州大学附属肿瘤医院麻醉科
出 处:《中华实验外科杂志》2015年第5期1084-1086,共3页Chinese Journal of Experimental Surgery
基 金:2012年度河南省医学科技攻关计划资助项目(201204026);2012年河南省基础研究计划资助项目(122300410075)
摘 要:目的 观察帕瑞昔布钠对肺缺血再灌注大鼠肺部炎性反应的影响.方法 健康雄性SD大鼠72只,体质量250 ~ 300 g,随机分为3组(n=24):假手术组(S组)、肺缺血再灌注组(I/R组)、肺缺血再灌注+帕瑞昔布钠组(P组).阻断右肺门60 min后再灌注120 min制备大鼠肺缺血再灌注模型,P组在夹闭右肺门前30 min腹腔注射帕瑞昔布钠5 mg/kg,S组和I/R组给予等容量生理盐水.于右肺门再灌注2h后处死大鼠.计算肺湿干重比,测定血清丙二醛(MDA)以及超氧化物歧化酶(SOD)含量;检测支气管肺泡灌洗液(BALF)中性粒细胞比例,采用酶联免疫吸附试验(ELISA)法测定灌洗液上清中肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)含量.结果 I/R组和P组肺组织湿干重比值分别为6.34±0.19和5.28 ±0.17(P<0.05)、血清MDA含量分别为(9.26±1.85) mol/L和(5.45±1.12) mol/L(P<0.05),SOD含量分别为(98.1±12.6)U/ml和(155.8±14.4)U/ml (P<0.05),BALF中性粒细胞比例分别为(57.6±8.1)%和(32.6±5.8)%(P<0.05),BALF上清中TNF-α水平分别为(425.2±41.8) ng/L和(335.4 ±33.2) ng/L (P<0.05),IL-1β水平分别为(178.1±22.6)ng/L和(105.4±15.9) ng/L (P<0.05).结论 帕瑞昔布钠可减少肺缺血再灌注大鼠炎性细胞因子的表达,减轻缺血再灌注导致的急性肺损伤.Objective To investigate the effects of parecoxib on pneumocyet apoptosis during lung ischemia-reperfusion (I/R) injury in rats.Methods Seventy-two male SD rats were randomly divided into 3 groups (n =24 each):group sham operation;group I/R and group parecoxib.lung I/R was induced by occlusion of hilum of the right lung for 60 min followed by 120 min of reperfusion.In P group parecoxib 5 mg/kg was injected iv at 30 min before occlusion of hilum of the right lung.The rats were sacrificed at 2 h of reperfusion and then the lungs were removed for measurement of lung wet/dry weight ratio,and the percentage of neutrophil in bronchoalveolar lavage fluid (BALF) were detected.The levels of malondialdehyde (MDA) and superoxide dismutase (SOD) were measured.The tumor necrosis (TNF-α) and interleukin 1β (IL-1β) in BALF supernatant were determined by using enzyme linked immunosorbent assay (ELISA) method.Results Parecoxib significantly attenuated the I/R-induced changes in lung.wet/dry weight ratio (6.34 ±0.19 vs.5.28 ±0.17,P〈0.05),the levels of malondialdehyde (MDA) [(9.26 ±1.85) mol/L vs.(5.45 ± 1.12) mol/L,P 〈 0.05],superoxide dismutase (SOD) [(98.1 ± 12.6) U/ml vs.(155.8 ±14.4) U/ml,P〈0.05] and The rumor necrosis factor-α (TNF-α) [(425.2 ±41.8) ng/L vs.(335.4 ± 33.2) ng/L,P 〈 0.05].Interleukin 1β [(178.1 ± 22.6) ng/L vs.(105.4 ±15.9) ng/L,P 〈0.05] in group P compared with group I/R.Parecoxib ameliorated I/R-induced lung damage.Conclusion Compared with I/R group,the more attenuation of pulmonary inflammation in Parecoxib group after lung I/R injury is associated with less neutrophil activation and decrease in production of the inflammatory cytokines.
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