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双歧杆菌对抑郁模型大鼠行为及炎症因子的影响 被引量:2

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摘要 目的观察双歧杆菌对抑郁模型大鼠行为学及外周血中炎症细胞因子[肿瘤坏死因子α(TNF-α)、干扰素γ(INF-γ)、白细胞介素1β(IL-1β)、白细胞介素6(IL-6)、白细胞介素8(IL-8)]的影响。方法选用成年雄性的Sprague Dawley(SD)大鼠48只,随机分成4组:模型(CUS)组、氟西汀(FLX)组、双歧杆菌(Bif)组和对照组,前3组釆用连续6周慢性轻度不可预见性应激(chronic unpredictable mild stress,CUMS)的方法建立慢性抑郁大鼠模型,并于第3周末—第6周末对双歧杆菌组给予双歧杆菌灌胃,氟西汀组以氟西汀灌胃,模型组和对照组给予同体积溶剂灌胃;以糖水消耗实验、体质量测量、旷场实验对CUS前、后及干预后大鼠进行评估,并以酶联免疫吸附测定(ELISA)法测定各组大鼠外周血中细胞因子浓度。结果干预后与对照组相比,模型组大鼠TNF-α、INF-γ、IL-1β、IL-6、IL-8浓度升高,差异均具有统计学意义(P<0.05);与模型组相比,双歧杆菌组TNF-α、INF-γ、IL-6、IL-8浓度,与氟西汀组TNF-α、INF-γ、IL-6浓度降低,差异均具有统计学意义(P<0.05)。结论双歧杆菌可以改善抑郁模型大鼠的抑郁行为,并降低其炎症因子浓度水平。
出处 《继续医学教育》 2017年第6期129-131,共3页 Continuing Medical Education
基金 国家自然科学基金面上项目资助(81271525)
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