Effect of BN52021 on expression of NF-κB p65 mRNA and IκBα mRNA in pancreas tissue of rats with acute necrotizing pancreatitis
- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF PANCREATOLOGY
- Issue:
- 2
- DOI:
- 10.3760/cma.j.issn.1674-1935.2007.02.004
- Key Word:
- 胰腺炎,急性坏死性;NF-κB;银杏苦内脂类;模型,动物
Abstract： 目的 观察NF-κB p65、IκBα mRNA在急性坏死性胰腺炎(ANP)大鼠胰腺组织中的表达以及银杏苦内脂B(BN52021)对其表达的影响.方法 180只Wistar大鼠随机分为对照组(NC组)、ANP模型组(ANP组)、BN52021治疗组(BN组),每组大鼠分别在术后1 h、2 h、3 h、6 h、12 h和24 h 6个时间点处死,抽血测定血淀粉酶含量,取胰腺组织行病理学检查,RT-PCR法检测NF-κB p65、IκBα mRNA表达.结果 血清淀粉酶和病理学改变符合ANP.BN52021能降低ANP大鼠的血清淀粉酶含量和改善胰腺的病理损害.ANP组和BN组NF-κB p65 mRNA均呈双峰改变,第1峰在1 h,第2峰分别在24 h和12 h,6 h时降至最低.ANP组NF-κB p65 mRNA表达在2 h、3 h、12 h和24 h较NC组显著增加(P ＜ 0.05或0.001),仅在1 h时较BN组有显著差异(P ＜ 0.041),其他时间点无显著差异;但较NC组各时点显著升高(P ＜ 0.05或0.001).ANP组IκBα mRNA表达仅在24 h点较NC组明显增加(P = 0.000),BN组在1 h、6 h和12 h较ANP组显著增加(P ＜ 0.01),在1 h、12 h和24 h也较NC组显著增加(P ＜ 0.01).结论 NF-κB p65 mRNA在ANP大鼠胰腺组织表达上调,IκBα mRNA仅在造模后24 h时表达上调.BN52021可能通过上调IκBα mRNA的表达,破坏NF-κBp65 mRNA和IκBα mRNA的平衡,从而发挥其治疗作用.
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