姜黄素预处理对大鼠肢体缺血再灌注肺损伤时血红素加氧酶-1的影响

中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (8): 841-845.

• 基础研究 • 下一篇

姜黄素预处理对大鼠肢体缺血再灌注肺损伤时血红素加氧酶-1的影响

孙晓峰¹, 杨军²

¹沈阳医学院奉天医院麻醉科,沈阳 110024,辽宁;
²中国医科大学附属第一医院骨科,沈阳 110001,辽宁

收稿日期:2012-02-12 修回日期:2012-06-25 出版日期:2012-08-26 发布日期:2012-08-14
作者简介:孙晓峰,男,博士,副主任医师,硕士生导师,研究方向:围术期器官保护与麻醉药理学。Tel: 024-25966975 E-mail: sunxiaofeng1974@163.com
基金资助:
国家自然科学基金项目(30600631);沈阳市科学技术计划项目(F10-205-1-77);沈阳医学院优秀人才启动基金项目(20103051)

Effects of curcumin pretreatment on heme oxygenase-1 in lung injury induced by ischemia-reperfusion of hind limbs in rats

SUN Xiao-feng¹, YANG Jun²

¹Department of Anesthesiology, Fengtian Hospital, Shenyang Medical College, Shenyang 110024,Liaoning,China;
²Department of Orthopedics,First Affiliated Hospital,China Medical University,Shenyang 110001,Liaoning,China

Received:2012-02-12 Revised:2012-06-25 Online:2012-08-26 Published:2012-08-14

摘要/Abstract

摘要： 目的: 探讨姜黄素预处理对大鼠肢体缺血再灌注肺损伤时血红素加氧酶-1(HO-1)的影响。方法: 建立大鼠肢体缺血 2 h 再灌注 3 h 肺损伤模型。60只大鼠随机等分为5组:假手术组(Sham)、姜黄素组(Cur)、缺血再灌注组(I/R)、姜黄素+缺血再灌注组(Cur-I/R)和锌原卟啉IX(ZnPP)+姜黄素+缺血再灌注组(ZnPP-Cur-I/R)。ZnPP-Cur-I/R组于缺血前 24 h 经腹腔注射ZnPP 20 mg/kg,Cur 组、Cur-I/R组和ZnPP-Cur-I/R组分别于缺血前 2 h 经腹腔注射姜黄素 200 mg/kg,其余各组给予等容量生理盐水。除Sham组和Cur组外,其余各组行肢体缺血再灌注。观察肺组织病理学变化,测定肺组织损伤评分、湿/干重比(W/D)、中性粒细胞(PMN)数目和HO-1 mRNA及其蛋白表达的情况。结果: 与Sham组比较,I/R组肺组织损伤较重,肺损伤评分、W/D及PMN计数升高,HO-1 mRNA及其蛋白表达上调(P＜0.01);与I/R组比较,Cur-I/R组肺组织损伤减轻,肺损伤评分、W/D及PMN计数降低,HO-1 mRNA及其蛋白表达上调(P＜0.01);与Cur-I/R组比较,ZnPP-Cur-I/R组肺组织损伤加重,肺损伤评分、W/D及PMN计数升高,HO-1 mRNA及其蛋白表达下调(P＜0.01)。结论: 姜黄素预处理可通过上调肺组织HO-1的表达减轻大鼠肢体缺血再灌注肺损伤。

关键词: 姜黄素, 再灌注损伤, 血红素加氧酶-1

Abstract: AIM: To investigate the effects of curcumin pretreatment on heme oxygenase-1 (HO-1) in lung injury induced by ischemia-reperfusion (I/R) of hind limbs in rats.METHODS: The model of lung injury was established by occlusion of bilateral femoral arteries for 2 h followed by 3 h reperfusion in rat. Sixty SD rats were randomly divided into five equal groups: Sham group, Curcumin group (Cur group), I/R group, Curcumin+I/R group (Cur-I/R group), Zinc protoporphyrin IX+Curcumin+I/R group (ZnPP-Cur-I/R group). ZnPP-Cur-I/R group received ZnPP 20 mg/kg via intraperitoneal injection 24 h before ischemia. Cur, Cur-I/R and ZnPP-Cur-I/R groups received curcumin 200 mg/kg respectively via intraperitoneal injection 2 h before ischemia. I/R of hind limbs was induced in three I/R groups. The lungs were removed for pathologic examination and determination of the lung Wet/dry weight ratio (W/D), lung injury score and polymorphonuclear neutrophil (PMN) count. The expression of HO-1 mRNA and protein in lung tissues was detected using RT-PCR and Western blot analysis respectively.RESULTS: Alveolar edema, localized pulmonary atelectasis and large amount of PMN infiltration were found in I/R group and were ameliorated in Cur-I/R group. Lung injury score, W/D ratio and PMN count were increased in I/R group as compared with Sham group (P＜0.01). Lung injury score, W/D ratio and PMN count were significantly decreased in Cur-I/R group as compared with I/R group (P＜0.01). HO-1 mRNA and protein expression was significantly up-regulated in Cur-I/R group than in Sham and I/R groups (P＜0.01). Compared with Cur-I/R group, the beneficial effects of curcumin were abolished, lung injury score, W/D ratio and PMN count were significantly increased, and expression of HO-1 mRNA and protein was down-regulated in ZnPP-Cur-I/R group (P＜0.01).CONCLUSION: Curcumin pretreatment has protective effects against lung injury induced by I/R of hind limbs in rats through up-regulation of HO-1 expression in the lung tissues.

Key words: Curcumin, Reperfusion injury, Heme oxygenase-1

中图分类号:

R563

孙晓峰, 杨军. 姜黄素预处理对大鼠肢体缺血再灌注肺损伤时血红素加氧酶-1的影响[J]. 中国临床药理学与治疗学, 2012, 17(8): 841-845.

SUN Xiao-feng, YANG Jun. Effects of curcumin pretreatment on heme oxygenase-1 in lung injury induced by ischemia-reperfusion of hind limbs in rats[J]. Chinese Journal of Clinical Pharmacology and Therapeutics, 2012, 17(8): 841-845.

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姜黄素预处理对大鼠肢体缺血再灌注肺损伤时血红素加氧酶-1的影响

Effects of curcumin pretreatment on heme oxygenase-1 in lung injury induced by ischemia-reperfusion of hind limbs in rats

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