甘草甲醇提取物FM100对小鼠溃疡性结肠炎的药效学研究

目的观察甘草甲醇提取物FM100对小鼠溃疡性结肠炎的作用。方法用三硝基苯磺酸钠(TNBS)和乙醇制造小鼠溃疡性结肠炎模型,空白对照组和TNBS模型组灌胃等容量生理盐水,阳性对照组灌胃地塞米松0.2mg/kg,FM100大、中、小剂量组分别灌胃FM100300mg/kg、200mg/kg、100mg/kg,连续灌胃14d。观察小鼠体质量变化、腹泻、结肠黏膜组织形态学、脾脏指数及髓过氧化物酶(MPO)活力等指标。结果甘草甲醇提取物FM100可不同程度地改善TNBS/乙醇所致溃疡性结肠炎小鼠体质量下降和腹泻症状,明显降低结肠黏膜粘连及其溃疡分值和脾脏指数,但可增高MPO活力(P<0.05或P<0.01)。结论甘草甲醇提取物FM100对小鼠溃疡性结肠炎有较好的改善作用,能减轻结肠局部的病理性损伤。

The pharmacodynamics study of methanol extract of Glycyrrhizae FM100 on ulcerative colitis

Objective To investigate the effects of methanol extract of Glycyrrhizae FM100 on ulcerative colitis (UC) mice. Methods A mouse model of UC were made by TNBS and alcohol. The blank control group and model group were given NS, the positive group was taken 0.2 mg/kg Dexamethasone, FM100 large, middle, small groups were taken 300 mg/kg, 200 mg/kg, 100 mg/kg FM100 separately for 14 days. Observed body weight, diarrhea, histomorphology of colon mucosa, spleen index and myeloperoxidase (MPO) activity. Results Methanol extract of Glycyrrhizae FM100 could improve in different degrees the decreased body weight and diarrhea symptom, decreased the colon mucosa adhesion, ulcer grade and spleen index, increased the MPO activity. Conclusion FM100 can improve the UC of mice, alleviated the pathologic injure in partial colon.