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甘肃中医药大学,兰州 730000
徐敏,在读硕士,从事四诊理论研究与分析,E-mail:289780966@qq.com
王凤仪,博士,硕士生导师,教授,从事中医四诊理论研究与分析,E-mail:wfy@gszy.edu.cn
网络出版日期:2020-04-27,
纸质出版日期:2020-07-20
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徐敏,王凤仪,赵党生等.芍药汤对湿热内蕴型溃疡性结肠炎大鼠TLR4,NF-κB p65和IL-6表达的调控作用[J].中国实验方剂学杂志,2020,26(14):53-58.
XU Min,WANG Feng-yi,ZHAO Dang-sheng,et al.Effect of Shaoyaotang on Expressions of TLR4, NF-,κ,B p65 and IL-6 in Rats with Damp-heat Ulcerative Colitis[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(14):53-58.
徐敏,王凤仪,赵党生等.芍药汤对湿热内蕴型溃疡性结肠炎大鼠TLR4,NF-κB p65和IL-6表达的调控作用[J].中国实验方剂学杂志,2020,26(14):53-58. DOI: 10.13422/j.cnki.syfjx.20201403.
XU Min,WANG Feng-yi,ZHAO Dang-sheng,et al.Effect of Shaoyaotang on Expressions of TLR4, NF-,κ,B p65 and IL-6 in Rats with Damp-heat Ulcerative Colitis[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(14):53-58. DOI: 10.13422/j.cnki.syfjx.20201403.
目的
2
以Toll样受体4(TLR4)/核转录因子-
κ
B(NF-
κ
B)信号通路为基础,探讨芍药汤治疗湿热内蕴型溃疡性结肠炎(UC)的作用机制。
方法
2
取50只Wistar大鼠,雌雄各半,采用病证结合方法,以高脂高糖辛辣食物及免疫复合法,联合2,4,6-三硝基苯磺酸(TNBS)结合乙醇复合法复制湿热内蕴型UC大鼠模型。造模成功后,将模型大鼠随机分为模型组、柳氮磺吡啶组及芍药汤低、中、高剂量组,另取10只大鼠(雌雄各半)作为正常组。芍药汤低、中、高剂量组按6,12,24 g·kg
-1
灌胃,柳氮磺吡啶组按1 g·kg
-1
剂量灌胃,正常组给予等体积生理盐水,连续21 d。末次给药后采集结肠样本,苏木素-伊红(HE)染色观察结肠组织病理变化,运用实时荧光定量聚合酶链式反应(Real-time PCR)检测结肠组织中TLR4,NF-
κ
B p65和IL-6 mRNA的表达,蛋白免疫印迹法(Western blot)检测结肠组织中TLR4,NF-
κ
B p65和IL-6蛋白的表达。
结果
2
与正常组比较,模型组结肠组织损坏较明显,模型组TLR4,NF-
κ
B p65和IL-6 mRNA及蛋白相对表达量明显升高(
P
<
0.05);与模型组比较,柳氮磺吡啶组、芍药汤各剂量组结肠组织损坏明显改善,TLR4,NF-
κ
B p65和IL-6 mRNA及蛋白表达量明显下降(
P
<
0.05),芍药汤各剂量组中以芍药汤高剂量组最为明显。
结论
2
芍药汤可通过调控TLR4/NF-
κ
B通路中TLR4,NF-
κ
B p65和IL-6 mRNA及蛋白的表达,抑制UC病情的发展。
Objective
2
To explore the mechanism of Shaoyaotang in the treatment of ulcerative colitis (UC) based on toll-like receptor 4 (TLR4)/nuclear factor kappaB (NF-
κ
B) signaling pathway.
Method
2
A total of 50 Wistar rats were selected
including half male and half female. The damp-heat UC rat model was replicated by the methods of the combination of diseases and syndromes and the combination of 2
4
6-nitrobenzene sulfonic acid (TNBS) and ethanol. After the successful modeling
the model rats were randomly divided into model group
salazulesulfonate group
and low
medium and high-dose Shaoyaotang groups
and 10 rats (half male and half female) were selected as the blank control group. Low
medium and high-dose Shaoyaotang groups were given 6
12
24 g·kg
-1
by
gavage
and salazonyl arsenic group was given 1 g·kg
-1
by
gavage. Blank control group was given the equal volume of normal saline for 21 consecutive days. Colon samples were collected after the last administration
and the expressions of TLR4
NF-
κ
B p65 and IL-6 mRNA in colon tissues were detected by fluorescent quantitative polymerase chain reaction (Real-time PCR)
and the expressions of TLR4
NF-
κ
B p65 and IL-6 protein in colon tissues were detected by Western blot.
Result
2
Compared with the blank control group
the relative expressions of TLR4
NF-
κ
B p65
IL-6 mRNA and protein in the model group were significantly increased (
P
<
0.05). Compared with the model group
the expression levels of TLR4
NF-
κ
B p65 and IL-6 mRNA and protein in the salazopyridine group and Shaoyaotang groups were significantly decreased (
P
<
0.05).
Conclusion
2
Shaoyaotang can inhibit the development of UC by regulating the expressions of TLR4
NF-
κ
B p65 and IL-6 mRNA and proteins in the TLR4/NF-
κ
B pathway.
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