摘要
目的观察人参皂苷Rb1对抑郁大鼠海马-杏仁核组织磷酸化微管相关蛋白-2(pMAP-2)的影响。方法将30只健康SPF级成年雄性Wistar大鼠随机均分为对照组、模型组和治疗组。采用慢性不可预见性温和应激(CUMS)结合孤养建立抑郁症大鼠模型(模型组),治疗组在造模的同时灌胃给予人参皂苷Rb1(药液含原生药1 g/m L,剂量1 mL/100 g体质量,1次/d);对照组除每天抓取1次外,不作其他处理,持续22 d。采用Western blot法检测海马、杏仁核组织微管相关蛋白-2(MAP-2)及pMAP-2蛋白表达,Real-time PCR检测pMAP-2 mRNA表达。结果模型组大鼠海马和杏仁核组织pMAP-2蛋白和mRNA表达水平以及pMAP-2/MAP-2比值均明显低于对照组(均P<0.05),治疗组pMAP-2蛋白和mRNA表达水平以及pMAP-2/MAP-2比值较模型组明显升高,但仍低于对照组(均P<0.05)。结论人参皂苷Rb1可能通过抑制MAP-2磷酸化水平来发挥抗抑郁作用。
Objective To observe effects of ginsenoside Rb1 on phosphorylation of microtubule-associated protein 2 (pMAP-2) in hippocampus and amygdala of depressive model rats. Methods Thirty male Wistar rats were randomly divided into control group, model group and treatment group. The depression rat model was produced by giving chronic unpredicted mild stress (CUMS). Treatment group was given daily intragastric administration of ginsenoside RB 1 (1 g/mL crude drug, 1 mL/100 g body weight) for 22 days during modeling. Western blot assay was used to detect expressions of MAP-2 and pMAP-2 protein, and real-time PCR was used to detect expressions of pMAP-2 mRNA respectively. Results The expressions of pMAP-2 protein and mRNA in hippocampus and amygdala were significantly lower in model group than those of control group (P < 0.05). The expressions of pMAP-2 protein and mRNA were significantly higher in treatment group than those of model group (P<0.05). Conclusion Ginsenoside Rb1 can play anti-depression role by inhibiting the phosphorylation of MAP-2 in rats.
出处
《天津医药》
CAS
2016年第7期846-848,共3页
Tianjin Medical Journal
基金
国家自然科学基金资助项目(81201048)
