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1.河北中医学院 药学院,河北省高校中药组方制剂应用技术研究中心,石家庄 050200
2.中国中医科学院 广安门医院,北京 100053
3.河北省中医院,石家庄 050911
李易水,在读硕士,从事中药防治代谢性疾病的机制研究,E-mail:15512127882@163.com
张一昕,博士,教授,博士生导师,从事代谢性疾病的中医药防治和机制研究,E-mail:hbzyx123@163.com
收稿日期:2021-05-12,
网络出版日期:2021-07-07,
纸质出版日期:2021-09-05
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李易水,储心乔,彪雅宁等.当归芍药散对非酒精性脂肪肝大鼠TLR4/MyD88/JNK信号通路的影响[J].中国实验方剂学杂志,2021,27(17):24-31.
LI Yi-shui,CHU Xin-qiao,BIAO Ya-ning,et al.Effect of Danggui Shaoyaosan on TLR4/MyD88/JNK Signaling Pathway on Rats with Nonalcoholic Fatty Liver Disease[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(17):24-31.
李易水,储心乔,彪雅宁等.当归芍药散对非酒精性脂肪肝大鼠TLR4/MyD88/JNK信号通路的影响[J].中国实验方剂学杂志,2021,27(17):24-31. DOI: 10.13422/j.cnki.syfjx.20211737.
LI Yi-shui,CHU Xin-qiao,BIAO Ya-ning,et al.Effect of Danggui Shaoyaosan on TLR4/MyD88/JNK Signaling Pathway on Rats with Nonalcoholic Fatty Liver Disease[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(17):24-31. DOI: 10.13422/j.cnki.syfjx.20211737.
目的
2
探讨当归芍药散对非酒精性脂肪肝(NAFLD)大鼠的治疗作用及其机制。
方法
2
60只清洁级SD雄性大鼠随机分为正常组、模型组、易善复组(0.144 g·kg
-1
)及当归芍药散低、中、高剂量组(2.44,4.88,9.76 g·kg
-1
)。通过喂饲高脂饲料复制NAFLD大鼠模型,造模同时给予相应药物治疗,8周后,采集血清和肝组织标本,检测血清中胆固醇(TC),甘油三酯(TG),丙氨酸氨基转移酶(ALT),天门冬氨酸氨基转移酶(AST),肿瘤坏死因子-
α
(TNF-
α
)和白细胞介素-10(IL-10)的含量或活性变化及肝脏TC,TG,游离脂肪酸(FFA)的含量变化;实时荧光定量聚合酶链式反应(Real-time PCR)和蛋白免疫印迹法(Western blot)检测肝脏中Toll样受体4(TLR4),髓样分化因子88(MyD88),c-Jun氨基末端激酶(JNK)的基因和蛋白表达及l磷酸化JNK(p-JNK)的蛋白表达情况;苏木素-伊红(HE)染色和油红O染色观察肝脏病理形态学变化。
结果
2
与正常组比较,模型组大鼠血清中TC,TG,ALT,AST,TNF-
α
以及肝组织中TC,TG,FFA的含量或活性、肝脏中TLR4,MyD88和JNK的mRNA和蛋白表达及p-JNK的蛋白表达水平显著升高(
P
<
0.01),IL-10的含量均显著降低(
P
<
0.01);与模型组比较,当归芍药散各剂量组大鼠血清中TC,TG,ALT,AST,TNF-
α
和肝组织中TC,TG,FFA的含量或活性、肝脏中TLR4,MyD88,JNK的mRNA和蛋白表达及p-JNK的蛋白表达水平均明显降低(
P
<
0.05,
P
<
0.01),IL-10的含量均明显升高(
P
<
0.05,
P
<
0.01),HE染色和油红O染色结果提示其能明显减轻肝脏脂肪变性程度。
结论
2
当归芍药散可能通过抑制TLR4/MyD88/JNK信号通路,减轻炎症反应来治疗NAFLD。
Objective
2
To explore
the efficacy and mechanism of Danggui Shaoyaosan on rats of nonalcoholic fatty liver disease (NAFLD).
Method
2
Sixrty SPF SD male rats were randomly divided into normal group, model group,essentiale (0.144 g·kg
-1
) and low, middle and high-dose of Danggui Shaoyaosan groups (2.44, 4.88, 9.76 g·kg
-1
). High fat diet were fed to bulid the NAFLD model, and each treatment group was given corresponding drugs at the same time. After 8 weeks, the serum and liver tissue were collected to detect the contents or activities of total cholesterol (TC), triglyceride (TG), alanine aminotransferase (ALT), aspartic acid aminotransferase (AST), tumor necrosis factor-
α
(TNF-
α
) and interleukin-10 (IL-10) in serum, the contents of TC, TG and free fatty acid (FFA) in liver tissue, Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) and Western blot were used to observe the gene and protein expressions of Toll-like receptor 4 (TLR4), myeloid different factory 88 (MyD88) and c-Jun n-terminal kinase (JNK) and the protein expression of phosphorylation JNK(p-JNK) in liver tissue. Hematoxylin-eosin (HE) staining and Oil red staining to observe the pathological morphological changes of liver.
Result
2
Compared with control group, the contents or activities of TC, TG, ALT, AST and TNF-
α
in serum, the contents of TC, TG and FFA in liver and the gene and protein expressions of TLR4, MyD88, JNK, and the protein expression of p-JNK in liver tissue of model group were distinctly increased (
P
<
0.01), the content of IL-10 was significantly decreased (
P
<
0.01). Compared with model group, the contents or activities of TC, TG, ALT, AST and TNF-
α
in serum, the contents of TC, TG and FFA in liver and the mRNA and protein expressions of TLR4, MyD88 and JNK, and the protein expression of p-JNK in liver tissue of Danggui Shaoyaosan groups were significantly reduced (
P
<
0.05,
P
<
0.01), the content of IL-10 in serum of Danggui Shaoyaosan groups was distinctly increased(
P
<
0.05,
P
<
0.01), HE staining and Oil red staining show that the degree of liver steatosis was alleviated obviously by Danggui Shaoyaosan.
Conclusion
2
Danggui Shaoyaosan has a better treatment on NAFLD by inhibiting TLR4/MyD88/JNK pathway and alleviating the inflammation response.
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