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1.重庆医科大学 中医药学院,重庆 400016
2.重庆市中医院,重庆 400021
3.重庆中医药学院,重庆 402760
石立鹏,在读博士,从事心肌纤维化的基础与临床研究,E-mail:lipeng_shi@outlook.com
杜旭勤,博士后,助理研究员,从事心肌纤维化的基础与临床研究,E-mail:duxuqin@cqctcm.edu.cn
纸质出版日期:2023-12-20,
网络出版日期:2023-08-31,
收稿日期:2023-05-11,
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石立鹏,邓静薇,尹二谦等.防己茯苓汤对心肌纤维化小鼠巨噬细胞极化和氧化应激的影响[J].中国实验方剂学杂志,2023,29(24):11-18.
SHI Lipeng,DENG Jingwei,YIN Erqian,et al.Effect of Fangji Fulingtang on Macrophage Polarization and Oxidative Stress in Mouse Model of Myocardial Fibrosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(24):11-18.
石立鹏,邓静薇,尹二谦等.防己茯苓汤对心肌纤维化小鼠巨噬细胞极化和氧化应激的影响[J].中国实验方剂学杂志,2023,29(24):11-18. DOI: 10.13422/j.cnki.syfjx.20231112.
SHI Lipeng,DENG Jingwei,YIN Erqian,et al.Effect of Fangji Fulingtang on Macrophage Polarization and Oxidative Stress in Mouse Model of Myocardial Fibrosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(24):11-18. DOI: 10.13422/j.cnki.syfjx.20231112.
目的
2
探讨防己茯苓汤对心肌纤维化小鼠巨噬细胞极化和氧化应激的影响。
方法
2
通过皮下注射异丙肾上腺素(5 mg·kg
-1
·d
-1
)构建心肌纤维化小鼠模型。将50只C57BL/6J小鼠随机分为假手术组、模型组、防己茯苓汤低、高剂量组、酒石酸美托洛尔(Meto)组,每组10只。假手术组、模型给予相应体积生理盐水灌胃,防己茯苓汤低、高剂量组分别予以防己茯苓汤低、高剂量灌胃(3.315、13.26 g·kg
-1
·d
-1
),Meto组予以酒石酸Meto灌胃(15 mg·kg
-1
·d
-1
)。2周后,观察小鼠心脏形态,计算平均细胞横截面积、心脏质量指数和心胫比,组织病理学方法观察心肌胶原沉积,酶联免疫吸附测定法(ELISA)检测血清肌酸激酶同工酶(CK-MB)、转化生长因子-
β
1
(TGF-
β
1
)、炎症因子指标[肿瘤坏死因子-
α
(TNF-
α
)、白细胞介素(IL)-1
β
、IL-6、IL-10]和氧化应激指标[丙二醛(MDA)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH)]的表达水平,免疫组织化学染色观察心肌组织CD86和CD206蛋白表达水平。
结果
2
与模型组比较,防己茯苓汤低、高剂量组和Meto组小鼠心脏外观形态明显减小,平均心肌细胞横截面积、心脏质量指数和心胫比显著降低(
P
<
0.01);血清CK-MB、TGF-
β
1
水平明显降低(
P
<
0.05,
P
<
0.01);血清促炎细胞因子TNF-
α
、IL-1
β
、IL-6表达水平明显降低(
P
<
0.05,
P
<
0.01),抗炎细胞因子IL-10明显升高(
P
<
0.05);炎症细胞浸润、心肌损伤、胶原沉积和纤维化程度明显减轻;巨噬细胞极化标志物CD86表达水平显著降低(
P
<
0.01),CD206表达水平显著升高(
P
<
0.01);氧化应激指标MDA表达水平显著升高(
P
<
0.01),SOD、GSH表达水平显著降低(
P
<
0.01)。
结论
2
防己茯苓汤可以改善异丙肾上腺素诱导的心肌纤维化,其机制可能是通过调控巨噬细胞极化和氧化应激发挥作用。
Objective
2
To investigate the effects of Fangji Fulingtang on macrophage polarization and oxidative stress in the mouse model of myocardial fibrosis.
Method
2
The mouse model of myocardial fibrosis was established by subcutaneous injection of isoproterenol (ISO, 5 mg·kg
-1
·d
-1
). Fifty C57BL/6J mice were randomly assigned into control (0.9% NaCl), model (0.9% NaCl), low- and high-dose (3.315 g·kg
-1
·d
-1
and 13.26 g·kg
-1
·d
-1
, respectively) Fangji Fulingtang (FFD-L and FFD-H, respectively), and metoprolol tartrate (Meto, 15 mg·kg
-1
·d
-1
) groups, with 10 mice each group. After 2 weeks of treatment, the heart appearance, cardiac weight index (CWI), heart weight (HW)/tibia length (TL) ratio, and myocardial histopathological alterations were observed. Meanwhile, the serum levels of creatine kinase-MB (CK-MB), transforming growth factor-
β
1
(TGF-
β
1
), tumor necrosis factor-
α
(TNF-
α
), interleukin (IL)-1
β
, IL-6, IL-10, malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) were measured by enzyme-linked immunosorbent assay (ELISA). The expression levels of CD86 and CD206 were observed by immunohistochemical staining.
Result
2
Compared with the model group, the FFD-L, FFD-H, and Meto groups showed improved heart appearance, decreased CWI and HW/TL ratio (
P
<
0.01), lowered serum levels of CK-MB, TGF-
β
1
, TNF-
α
, IL-1
β
, and IL-6 (
P
<
0.05,
P
<
0.01), and elevated IL-10 level (
P
<
0.05). Furthermore, the three groups showed reduced infiltration of inflammatory cells, myocardial injury, collagen deposition, and myocardial fibrosis, decreased CD86, SOD, and GSH (
P
<
0.01), and increased CD206 and MDA (
P
<
0.01).
Conclusion
2
Fangji Fulingtang can mitigate ISO-induced myocardial fibrosis by regulating macrophage polarization and oxidative stress.
防己茯苓汤心肌纤维化巨噬细胞极化氧化应激炎症因子
Fangji Fulingtangmyocardial fibrosismacrophage polarizationoxidative stressinflammatory cytokine
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