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