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上海中医药大学 中药研究所 中药标准化教育部重点实验室,中药新资源与质量标准综合评价 国家中医药管理局重点研究室,上海市复方中药重点实验室,上海 201203
顾鑫楠,在读硕士,从事中药药理研究,E-mail:690098406@qq.com
卫梦娟,博士,从事中药药理研究,Tel:021-51328176,E-mail:wmj_aijia@163.com
纸质出版日期:2022-12-05,
网络出版日期:2022-05-23,
收稿日期:2021-08-05,
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顾鑫楠,胡菲菲,苗蕙等.金银花水提物改善非酒精性脂肪性肝炎的探索[J].中国实验方剂学杂志,2022,28(23):87-96.
GU Xinnan,HU Feifei,MIAO Hui,et al.Improvement of Nonalcoholic Steatohepatitis by Water Extract of Lonicerae Japonicae Flos[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(23):87-96.
顾鑫楠,胡菲菲,苗蕙等.金银花水提物改善非酒精性脂肪性肝炎的探索[J].中国实验方剂学杂志,2022,28(23):87-96. DOI: 10.13422/j.cnki.syfjx.20220912.
GU Xinnan,HU Feifei,MIAO Hui,et al.Improvement of Nonalcoholic Steatohepatitis by Water Extract of Lonicerae Japonicae Flos[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(23):87-96. DOI: 10.13422/j.cnki.syfjx.20220912.
目的
2
探讨金银花水提物(FL)对非酒精性脂肪性肝炎(NASH)的改善作用及其机制。
方法
2
采用蛋氨酸胆碱缺乏饲料(MCD)喂养C57BL/6小鼠6周,第3周开始连续灌胃给药0.2、0.4 g·kg
-1
FL至实验结束。检测小鼠血清丙氨酸氨基转移酶(ALT)与天门冬氨酸氨基转移酶(AST)的活力;进行肝脏病理苏木素-伊红(HE)染色分析;测定肝组织中甘油三酯(TG)和游离脂肪酸(NEFA)的含量;测定肝组织中髓过氧化物酶(MPO)活力;利用天狼星红和Masson染色观察肝组织中胶原沉积情况,并测定肝脏羟脯氨酸(HYP)含量。利用网络药理学分析并结合实验验证FL改善NASH的潜在机制;应用实时荧光定量聚合酶链式反应(Real-time PCR)检测肝组织中炎症相关因子、纤维化相关因子的mRNA的表达;同时采用蛋白免疫印迹法(Western blot)检测血清中热休克蛋白60(HSP60)的释放和肝组织中
α
-平滑肌肌动蛋白(
α
-SMA)的表达。
结果
2
FL(0.2、0.4 g·kg
-1
)可以降低MCD诱导的小鼠NASH模型中升高的血清ALT、AST及肝组织中MPO活力及HYP含量。网络药理学结果提示FL可能是通过影响胶原等细胞外基质及炎症反应等生物过程来改善NASH,核转录因子-
κ
B(NF-
κ
B)、缺氧诱导因子-1
α
(HIF-1
α
)和热休克蛋白等信号通路可能参与其中。FL(0.2、0.4 g·kg
-1
)可以减少炎症及纤维化相关分子mRNA水平的升高,0.4 g·kg
-1
FL可以减少血清中HSP60的释放并降低肝脏中
α
-SMA的蛋白表达。
结论
2
FL可以通过降低炎症,减少胶原沉积、抑制HSC激活来改善NASH。
Objective
2
To explore the improvement and mechanism of the water extract of Lonicerae Japonicae Flos (FL) on nonalcoholic steatohepatitis (NASH).
Method
2
C57BL/6 mice were fed with methionine-choline-deficient (MCD) diet for 6 weeks. From the 3
rd
week, the mice were continuously orally given with FL (0.2 and 0.4 g·kg
-1
) until the end of the experiment. Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities of mice were detected, and the liver pathology was analyzed by hematoxylin-eosin (HE) staining. The content of triglyceride (TG) and non-esterified fatty acids (NEFA), and the activity of myeloperoxidase (MPO) in the liver tissue were determined. Hepatic collagen deposition was observed by Sirius Red and Masson staining assays, and the hepatic hydroxyproline (HYP) content was measured. Network pharmacology combined with following experimental verifications were used to analyze the potential mechanism of FL in the improvement of NASH. Real time polymerase Chain reaction (Real-time PCR) was used to detect hepatic mRNA expression of inflammation-related factors and fibrosis-related factors. The release of heat shock protein (HSP60) in the serum and
α
-smooth muscle actin (
α
-SMA) in the liver were detected by Western blot.
Result
2
FL (0.2 and 0.4 g·kg
-1
) reduced serum ALT and AST, hepatic MPO activity, and HYP content in the MCD-induced NASH mice. The results of network pharmacology suggested that FL presumably improved NASH by influencing biological processes related to extracellular matrix and inflammation, and signal pathways such as nuclear factor kappa-B (NF-
κ
B), hypoxia inducible factor-1
α
(HIF-1
α
), and heat shock proteins were possibly involved. FL (0.2 and 0.4 g·kg
-1
) reduced the increase of mRNA expression of inflammation-related and fibrosis-related factors, and FL (0.4 g·kg
-1
) decreased the release of HSP60 in serum and reduced the protein expression of
α
-SMA in liver.
Conclusion
2
FL improves NASH by reducing inflammation, decreasing collagen deposition, and inhibiting HSC activation.
金银花水提物非酒精性脂肪性肝炎胶原沉积炎症
water extract of Lonicerae Japonicae Flos (FL)nonalcoholic steatohepatitis (NASH)collagen depositioninflammation
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