BAI Xiao-jun,REN Jian-xun,ZHANG Wei-ping.Effect of Epimedii Folium Total Flavonoids on Angiogenesis of Ischemic Myocardium in Rats After Acute Myocardial Infarction[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(12):40-47.
BAI Xiao-jun,REN Jian-xun,ZHANG Wei-ping.Effect of Epimedii Folium Total Flavonoids on Angiogenesis of Ischemic Myocardium in Rats After Acute Myocardial Infarction[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(12):40-47. DOI: 10.13422/j.cnki.syfjx.20211201.
Effect of Epimedii Folium Total Flavonoids on Angiogenesis of Ischemic Myocardium in Rats After Acute Myocardial Infarction
To observe the effect of total flavonoids from Epimedii Folium (TEF) on the angiogenesis of ischemic myocardium in rats after acute myocardial infarction (AMI) and discuss its molecular biological mechanism of attenuating myocardial ischemia and improving cardiac function.
Method
2
AMI in rats was induced through the ligation of left anterior descending coronary artery. All male SD rats were randomized into sham-operated group, model group, diltiazem group (10 mg·kg
-1
·d
-1
), and TEF low-dose and high-dose groups (100 and 200 mg·kg
-1
·d
-1
), with 8 rats in each group. After modeling, rats in the diltiazem group and TEF groups were given corresponding doses of diltiazem and TEF, respectively, and those in the model group and sham-operated group received normal saline of equivalent volume, once a day for 7 days. After the administration, VisualSonics Vevo2100 imaging system was used to detect the cardiac structure and function and hematoxylin-eosin (HE) staining to observe the histomorphological changes in myocardial ischemic area. Immunohistochemistry was employed to analyze the expression of CD31 and
α
-smooth muscle actin (
α
-SMA) in ischemic myocardium and Western blot to detect the expression of vascular endothelial growth factor-receptor 2 (VEGF-R2) and phosphorylation of protein kinase B (Akt) in ischemic myocardium. Real-time PCR was applied to quantify the mRNA levels of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF).
Result
2
Compared with the sham-operated group, the model group demonstrated significant increase in left ventricular systolic diameter (LVIDs), left ventricular internal diameter at end-diastole (LVIDd), left ventricular end-systolic volume (LVEVs), and left ventricular end-diastolic volume (LVEVd), significant decrease in End-systolic thickness of left ventricular anterior wall (LVAWs), end-diastolic thickness of left ventricle anterior wall (LVAWd), end systolic thickness of left ventricular posterior wall (LVPWs), stroke volume (SV), ejection fraction (EF), fractional shortening (FS), and cardiac output (CO), obvious pathological changes in the ischemic myocardium, and plummet of the expression of CD31 and
α
-SMA (
P
<
0.01), Akt phosphorylation level, protein level of VEGF-R2, and mRNA levels of VEGF and bFGF (
P
<
0.05,
P
<
0.01). High-dose TEF significantly alleviated the pathological changes of ischemic myocardium as compared with the model group. Moreover, TEF high-dose group showed significantly lower levels of LVIDs, LVIDd, LVEVs, and LVEVd, significantly higher levels of LVAWs, LVAWd, LVPWs, SV, EF, FS, and CO, higher expression of CD31 and
α
-SMA (
P
<
0.05,
P
<
0.01), and higher levels of VEGF-R2 protein, phosphorylated Akt, and VEGF and bFGF mRNA than the model group (
P
<
0.05,
P
<
0.01).
Conclusion
2
TEF can effectively improve myocardial perfusion in peri-myocardial infarction area and attenuate ventricular remodeling and heart failure after AMI by up-regulating the expression of bFGF, VEGF, and VEGF-R2 in ischemic myocardium following AMI and activating phosphatidylinositol 3-kinases (PI3K)/Akt/VEGF signaling transduction pathway which can promote angiogenesis in ischemic myocardium.
关键词
Keywords
references
HEAD S J , MACK M J , HOLMES DR J R , et al . Incidence,predictors and outcomes of incomplete revascularization after percutaneous coronary intervention and coronary artery bypass grafting:a subgroup analysis of 3-year SYNTAX data [J]. Eur J Cardiothorac Surg , 2012 , 41 ( 3 ): 535 - 541 .
SUTTON M G , SHARPE N . Left ventricular remodeling after myocardial infarction:pathophysiology and therapy [J]. Circulation , 2000 , 101 ( 25 ): 2981 - 2988 .
MALIKEN B D , KANISICAK O , KARCH J , et al . Gata4-dependent differentiation of c-Kit + -derived endothelial cells underlies artefactual cardiomyocyte regeneration in the heart [J]. Circulation , 2018 , 138 ( 10 ): 1012 - 1024 .
WANG N , LIU C , WANG X , et al . Hyaluronic acid oligosaccharides improve myocardial function reconstruction and angiogenesis against myocardial infarction by regulation of macrophages [J]. Theranostics , 2019 , 9 ( 7 ): 1980 - 1992 .
LIM M , WANG W , LIANG L , et al . Intravenous injection of allogeneic umbilical cord-derived multipotent mesenchymal stromal cells reduces the infarct area and ameliorates cardiac function in a porcine model of acute myocardial infarction [J]. Stem Cell Res Ther , 2018 , 9 ( 1 ): 129 .
SONG G , LI X , SHEN Y , et al . Transplantation of iPSc restores cardiac function by promoting angiogenesis and ameliorating cardiac remodeling in a post-infarcted swine model [J]. Cell Biochem Biophys , 2015 , 71 ( 3 ): 1463 - 1473 .
LIU D , YE Y , XU L , et al . Icariin and mesenchymal stem cells synergistically promote angiogenesis and neurogenesis after cerebral ischemia via PI3K and ERK1/2 pathways [J]. Biomed Pharmacother , 2018 , 108 : 663 - 669 .
ChUNG B H , KIM J D , KIM C K , et al . Icariin stimulates angiogenesis by activating the MEK/ERK- and PI3K/Akt/eNOS-dependent signal pathways in human endothelial cells [J]. Biochem Biophys Res Commun , 2008 , 376 ( 2 ): 404 - 408 .
ZARROUK-MAHJOUB S , ZAGHDOUDI M , AMIRA Z , et al . Pro- and anti-inflammatory cytokines in post-infarction left ventricular remodeling [J]. Int J Cardiol , 2016 , 221 : 632 - 636 .
VAN KERCKHOVEN R , VAN VEGHEL R , SAXENA P R , et al . Pharmacological therapy can increase capillary density in post-infarction remodeled rat hearts [J]. Cardiovasc Res , 2004 , 61 ( 3 ): 620 - 629 .
POHL-SCHICKINGER A , KOEHNE P , SCHMITA T , et al . Vascular endothelial growth factor and its soluble receptor in infants with congenital cardiac disease [J]. Cardiol Young , 2010 , 20 ( 5 ): 505 - 508 .
FAN Z , XU Z , NIU H , et al . Spatiotemporal delivery of basic fibroblast growth factor to directly and simultaneously attenuate cardiac fibrosis and promote cardiac tissue vascularization following myocardial infarction [J]. J Control Release , 2019 , 311-312 : 233 - 244 .
DRAGNEVA G , KORPISALO P , YLA-HERTTUALA S . Promoting blood vessel growth in ischemic diseases:challenges in translating preclinical potential into clinical success [J]. Dis Model Mech , 2013 , 6 ( 2 ): 312 - 322 .
Establishment and Evaluation of Rat Model of Acute Myocardial Infarction in Coronary Heart Disease with Qi and Yin Deficiency Syndrome Based on Sleep Deprivation Combined with Coronary Artery Ligation
Mechanism of Danshenol A in Alleviating Myocardial Ischemia-reperfusion Injury-induced Ferroptosis of Cardiomyocytes
Quality Evaluation of Clinical Guidelines for Acute Myocardial Infarction Based on AGREE Ⅱ
Effect of Compatibility of Effective Monomer Components of Fujin Shengjisan on Angiogenesis of HUVEC Based on Uniform Design
Mechanism of Chinese Medicine in Promoting Angiogenesis After Ischemic Stroke Based on PI3K/Akt Signaling Pathway: A Review
Related Author
SHI Yali
GAO Yunxiao
ZHANG Qiuyan
YUAN Yue
CHEN Xiaoxiao
HU Longxiao
REN Junguo
LIU Jianxun
Related Institution
Institute of Basic Medical Sciences,Xiyuan Hospital,China Academy of Chinese Medical Sciences
Natural History Museum of China
Xiyuan Hospital of China Academy of Chinese Medical Sciences
Guang'anmen Hospital of China Academy of Chinese Medical Sciences
Changchun University of Traditional Chinese Medicine