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舒芬太尼预处理对大鼠肠缺血再灌注肝损伤的影响及阿片受体的介导作用 被引量:1

Effect of sufentanil preconditioning on liver injury induced by intestinal ischemia reperfusion in rats and opioid receptor-mediated effects
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摘要 目的探讨舒芬太尼对大鼠肠缺血再灌注肝细胞凋亡、bcl-2、Bax表达的影响及阿片受体的介导作用。方法成年健康Wistar大鼠72只,体质量200—250g,雌雄不限,随机分为9组,每组8只:假手术组(s组)、缺血再灌注组(IR组)、舒芬太尼预处理组(SPC组)、6受体阻断剂组(NTD组)、斗受体阻断剂组(CTOP组)、K受体阻断剂组(nor.BNI组)、3种阿片受体阻断剂干预组(NTD+SPC组、CTOP+SPC组、nor-BNI+SPC组)。通过夹闭肠系膜上动脉制作肠缺血再灌注损伤(IIRI)模型,实验结束后即刻取肝左叶做标本。用免疫组织化学法检测bcl-2、Bax蛋白表达,末端转移酶标记技术(TUNEL)法检测肝细胞凋亡指数(AI)。结果与IR组相比,SPC组bcl-2表达升高(0.277±0.014比0.230±0.013)(P〈0.05)、bcl-2/Bax比值升高(1.375±0.113比0.819±0.102)(P〈0.05),Bax表达下调(0.202±0.013比0.283±0.025)(P〈0.05),肝细胞AI降低(6.491±1.191比10.094±1.051)(P〈0.05)。与SPC组比较,NTD+SPC组、nor-BNI+SPC组、CTOP+SPC组bcl-2表达降低(F=59.698,P〈0.05),bcl-2/Bax比值降低(F=40.349,P〈0.05),Bax表达升高(F:53.765,P〈0.05),肝细胞AI升高(F=76.728,P〈0.05)。结论舒芬太尼预处理可抑制大鼠肠缺血再灌注时肝细胞凋亡,8、k、μ3种阿片受体介导了舒芬太尼的保护且作用相当。 Objective To investigate the role of sufentanil on intestinal isehemia-reperfusion model of liver cell apoptosis and bcl-2/Bax expression, and the opioid receptor-mediated effects in the process. Methods Seventy two healthy adult Wistar rats, weight 200-250 g, either male or female, were randomly divided into 9 groups (n=8),sham operation group(S), ischemia-reperfusion group (IR), sufentanil treated group (SPC), three kinds of opioid receptor antagonist, NTD (8 receptor antagonist,), nor-BNI (K receptor antagonist), CTOP(μ receptor antagonist) in the intervention groups (NTD + SPC, nor-BNI + SPC, CTOP + SPC), three kinds of opioid receptor antagonist control groups (NTD, nor-BNI,CTOP).by clamping the superior mesenteric artery production model of intestinal ischemia-reperfusion injury, after the end of the experiment, immediately take the left lobe of liver specimens. Immunohistochemical detection of bcl-2/Bax protein expression, terminal transferase labeling (TUNEL) assay of liver cell apoptosis index (AI). Results Compared with IR group, SPC Group bcl-2 expression increased (0.277±0.014 vs 0.230±0.013)(P〈0.05), bcl-2/Bax ratio increased (1.375± 0.113 vs 0.819±0.102)(P〈0.05), Bax down regulation (0.202±0.013 vs 0.283±0.025)(P〈0.05), liver cell AI reduced(6.491±1.191vs10.094±l.051)(P〈0.05). Compared with the SPC group, NTD + SPC group, nor-BNI + SPC group, CTOP+SPC group bcl-2 expression decreased(F=59.698, P〈0.05), bcl-2/Bax ratio decreased (F=40. 349,P〈0.05), Bax expression was elevated (F=53.765, P〈0.05), liver cells AI elevated (F=76.728,P〈0.05). Conclusion Sufentanil pretreatment inhibit rat intestinal ischemia-reperfusion liver cell apoptosis.8, K, μthree kinds of opioid receptor mediate the protective effect of sufentanil, and the effects are equal.
出处 《肿瘤研究与临床》 CAS 2012年第6期417-419,共3页 Cancer Research and Clinic
关键词 舒芬太尼 大鼠 再灌注损伤 肝细胞 Sufentanil Rats Reperfusion injury Hepatocytes
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