阿魏酸钠对结肠炎大鼠结肠巨噬细胞功能的影响

目的:探讨阿魏酸钠在整体水平下对结肠炎大鼠结肠巨噬细胞功能的影响及其机制。方法:建立大鼠免疫性结肠炎模型。阿魏酸钠(SF)灌肠用药21d后检测结肠组织MDA、NO、PGE₂含量,SOD、IL-1、TNF-α、MPO活性及NF-κBp65表达水平。结果:阿魏酸钠(200、400、800mg/kg)灌肠用药剂量依赖性降低模型组大鼠显著升高的MDA、NO、PGE₂含量,IL-1、TNF-α、MPO活性及NF-κBp65表达水平,同时升高显著降低的SOD活性。结论:SF整体水平下减弱结肠炎大鼠结肠活化巨噬细胞的生物活性,缓解结肠炎症反应,机制可能与抑制NF-κB表达有关。

Effects of sodium ferulate on function of macrophages in the colonic tissue of colitis rats

AIM: To explore the effects of sodium ferulate (SF) on function of macrophages in colonic tissue of the colitis rats in vivo. METHODS: The immunological colitis model of rats was produced. SF was used intracolonically for 21 days. The contents of malondialdehyde (MDA), nitric oxide (NO), prostaglandin E₂ (PGE₂) and the activity of superoxide dismutase (SOD), interleukin-1 (IL-1), TNF-α, myelopexoxidase (MPO), and the expression level of NF-κB p65 in colonic tissue of the rats were detected. RESULTS: SF (200,400,800 mg/kg) decreased the elevated contents of MDA, NO, PGE₂, the activity of IL-1, TNF-α, MPO, and the expression level of NF-κB p65, while increased the reduced activity of SOD in colonic tissue of the colitis rats in a dose-depended manner. CONCLUSION: SF restrained the activity of activated colonic macrophages and relieved the colonic inflammation reaction in vivo in colitis rats, which may be related to the suppression of NF-κB activation.