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STAT6 mRNA与NF-κB在实验性结肠炎大鼠中的表达 被引量:3
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作者 张夏毅 沈霖 +2 位作者 范恒 梁丽 廖弈 《国际消化病杂志》 CAS 2010年第5期311-313,共3页
目的研究信号转导和转录激活因子6(STAT6)与核因子(NF)-κB在实验性结肠炎大鼠中的表达。方法 18只SD雄性大鼠随机分为3组:正常对照组、模型组、美沙拉嗪组,每组6只。模型组和美沙拉嗪组大鼠均采用三硝基苯磺酸(TNBS)造模。模型组不设干... 目的研究信号转导和转录激活因子6(STAT6)与核因子(NF)-κB在实验性结肠炎大鼠中的表达。方法 18只SD雄性大鼠随机分为3组:正常对照组、模型组、美沙拉嗪组,每组6只。模型组和美沙拉嗪组大鼠均采用三硝基苯磺酸(TNBS)造模。模型组不设干预,正常饮食;美沙拉嗪组给予美沙拉嗪混悬液灌胃;治疗15d后观察大鼠的结肠病理组织学改变,用RT-PCR法检测大鼠结肠组织STAT6mRNA的表达,并用Western Blot法检测大鼠脾淋巴细胞NF-κBp65的表达。结果 STAT6 mRNA在溃疡性结肠炎组织中的表达明显高于正常结肠组织(P<0.01);大鼠脾淋巴细胞NF-κBp65蛋白在模型组的表达也明显高于正常组(P<0.01);与模型组相比,美沙拉嗪组STAT6 mRNA和NF-κBp65的表达明显下降(P<0.01)。结论 STAT6 mRNA和NF-κB p65在实验性结肠炎大鼠中呈现高表达。美沙拉嗪可能是通过STAT6和NF-κB双信号途径下调炎症,从而发挥治疗作用。 展开更多
关键词 结肠炎 美沙拉嗪 信号转导和转录激活因子6 核因子-ΚB P65
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穴位埋线治疗实验性结肠炎大鼠的机制探讨 被引量:2
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作者 张夏毅 沈霖 +2 位作者 范恒 梁丽 廖弈 《世界中医药》 CAS 2011年第6期527-529,共3页
目的:检测TNBS诱导实验性结肠炎大鼠在穴位埋线治疗前后的NF-κBp65和STAT6mRNA的表达水平,初步阐明穴位埋线治疗实验性结肠炎大鼠的作用机理。方法:18只雄性大鼠随机分为正常组、模型组、穴位埋线组,每组6只。除正常对照组未行造模外,... 目的:检测TNBS诱导实验性结肠炎大鼠在穴位埋线治疗前后的NF-κBp65和STAT6mRNA的表达水平,初步阐明穴位埋线治疗实验性结肠炎大鼠的作用机理。方法:18只雄性大鼠随机分为正常组、模型组、穴位埋线组,每组6只。除正常对照组未行造模外,其余2组大鼠均采用TNBS造模。模型组不设干预,正常饮食;穴位埋线组进行穴位埋线治疗。治疗15d后观察大鼠的结肠病理组织学改变,用western blot法检测大鼠脾淋巴细胞NF-κBp65蛋白的表达;用RT-PCR法检测大鼠结肠组织STAT6mRNA的表达。结果:穴位埋线组的大鼠腹泻、黏液脓血便症状得到较快改善,大鼠黏膜组织损伤也明显改善。与正常组相比,模型组大鼠NF-κBp65和STAT6mRNA增多(P<0.01);与模型组比较,穴位埋线组NF-κBp65和STAT6mRNA减少(P<0.01)。结论:穴位埋线能通过NF-κB和STAT6双信号途径下调炎症因子,从而发挥治疗作用。 展开更多
关键词 结肠炎 穴位埋线 NF-ΚBP65 STAT6
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Influence of catgut implantation at acupoints on splenic lymphocyte nuclear factor (NF-κB p65) and correlated signaling molecules (β2AR) in rats with experimental colitis
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作者 张夏毅 沈霖 +2 位作者 范恒 廖弈 梁丽 《World Journal of Acupuncture-Moxibustion》 2010年第4期48-53,共6页
Objective To investigate the mechanisms of catgut implantation at acupoints on ulcerative colitis. Methods Eighteen SD rats were randomly divided into a normal control group (NC), a model group (MO) and a catgut i... Objective To investigate the mechanisms of catgut implantation at acupoints on ulcerative colitis. Methods Eighteen SD rats were randomly divided into a normal control group (NC), a model group (MO) and a catgut implantation group (CI) with 6 rats in each group. Animals in group MO and group CI were treated by trinitro-benzene-sulfonic acid (TNBS) to establish model with colitis. No other treatment was given to the rats in group MO, but catgut was implanted at "Shàngjùxū" (上 巨虚 ST 37), "Tiānshū" (天枢 ST 25) and "Dàchángshū" (大肠俞 BL 25) in the rats in group CI. The symptoms of diarrhea and bloody stool, and changes in histopathology were detected 15 days after the treatment. Expressions of splenic lymphocyte nuclear factor κB p65(NF-κB p65)and correlated signaling molecules(β2AR)were detected by the western blot method. Results Diarrhea and mucus bloody purulent stool were soon controlled, and mucous injures were obviously improved in group CI. The NF-κB p65 value of splenic lymphocytes was signifi cantly increased (P0.01) and expression of β2AR remarkably reduced in group MO (P0.01), compared with group NC. But, the NF-κB p65 value was significantly decreased (P0.01) and expression of β2AR remarkably increased in group CI (P 0.01) , compared with group MO. Conclusion Catgut implantation at acupoints is obviously effective in treating experimental colitis. Modulation of NF-κB p65 and the correlated signaling molecules β2AR may be involved in the mechanisms. 展开更多
关键词 COLITIS Catgut Implantation at Acupoints Receptors ADRENERGIC beta-2 (β2AR) Nuclear Factor κB p65 (NF-κB p65)
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