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Feitosa MBJ, Araújo SS, Mesquita TRR, Gioda CR, Sá LADE, Almeida GKM, Miguel-Dos-Santos R, Barbosa AM, Vasconcelos CMLDE, Camargo EA, Barreiros ALBS, Estevam CS, Moraes ÉRDE, Amaral RG, Lauton-Santos S. Antioxidants and cardioprotective effects of ethyl acetate fraction of Canavalia rosea leaves in myocardial ischemia-reperfusion injury. AN ACAD BRAS CIENC 2023; 95:e20220514. [PMID: 37493694 DOI: 10.1590/0001-3765202320220514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/12/2022] [Indexed: 07/27/2023] Open
Abstract
Different degrees in the biological activities of Canavalia rosea had been previously reported . In this study, our group assessed the cardioprotective effects of the ethyl acetate fraction (EAcF) of the Canavalia rosea leaves. Firstly, it was confirmed, by in vitro approach, that the EAcF has high antioxidant properties due to the presence of important secondary metabolites, as flavonoids. In order to explore their potential protector against cardiovascular disorders, hearts were previously perfused with EAcF (300 μg.mL-1) and submitted to the global ischemia followed by reperfusion in Langendorff system. The present findings have demonstrated that EAcF restored the left ventricular developed pressure and decreased the arrhythmias severity index. Furthermore, EAcF significantly increased the glutathiones peroxidase activity with decreased malondialdehyde and creatine kinase levels. EAcF was effective upon neither the superoxide dismutase, glutationes reductase nor the catalase activities. In addition, the Western blot analysis revealed that ischemia-reperfusion injury significantly upregulates caspase 3 protein expression, while EAcF abolishes this effect. These results provide evidence that the EAcF reestablishes the cardiac contractility and prevents arrhythmias; it is suggested that EAcF could be used to reduce injury caused by cardiac reperfusion. However more clinical studies should be performed, before applying it in the clinic.
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Affiliation(s)
- Maraísa B J Feitosa
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Silvan S Araújo
- Federal University of Sergipe, Laboratory of Biochemistry and Chemistry of Natural Products, Biological Sciences and Health Centre, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Thássio Ricardo R Mesquita
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Carolina R Gioda
- Federal University of Rio Grande, Institute of Biological Sciences, Campus Carreiros, Avenida Itália Km 8, 96203-900 Rio Grande, RS, Brazil
| | - Lucas A DE Sá
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Grace Kelly M Almeida
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Rodrigo Miguel-Dos-Santos
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Andriele M Barbosa
- Tiradentes University, Center for Study on Colloidal Systems (NUESC), Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49032-490 Aracaju, SE, Brazil
| | - Carla Maria L DE Vasconcelos
- Federal University of Sergipe, Laboratory of Heart Biophysics - Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Enilton A Camargo
- Federal University of Sergipe, Laboratory of Inflammatory Process Pharmacology - Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - André Luís B S Barreiros
- Federal University of Sergipe, Natural Products Laboratory - Sciences and Technology Center, Department of Chemistry, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Charles S Estevam
- Federal University of Sergipe, Laboratory of Biochemistry and Chemistry of Natural Products, Biological Sciences and Health Centre, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Éder Ricardo DE Moraes
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Ricardo G Amaral
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | - Sandra Lauton-Santos
- Federal University of Sergipe, Cardiovascular Biology and Oxidative Stress Laboratory, Biological Sciences and Health Center, Department of Physiology, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
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Yang Y, Liu C, Xie T, Wang D, Chen X, Ma L, Zhang A. Role of inhibiting Chk1-p53 pathway in hepatotoxicity caused by chronic arsenic exposure from coal-burning. Hum Exp Toxicol 2021; 40:1141-1152. [PMID: 33501840 DOI: 10.1177/0960327120988880] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Arsenic is a naturally occurring environmental toxicant, chronic exposure to arsenic can cause multiorgan damage, except for typical skin lesions, liver damage is the main problem for health concern in population with arsenic poisoning. Abnormal apoptosis is closely related to liver-related diseases, and p53 is one of the important hallmark proteins in apoptosis progression. This study was to investigate whether arsenic poisoning-induced hepatocyte apoptosis and the underlying role of p53 signaling pathway. A rat model of arsenic poisoning was established by feeding corn powder for 90 days, which was baked with high arsenic coal, then were treated with Ginkgo biloba extract (GBE) for 45 days by gavage. The results showed that arsenic induced liver damage, increased hepatocyte apoptosis and elevated the expression level of Chk1 and the ratios of p-p53/p53 and Bax/Bcl-2 in liver tissues, which were significantly attenuated by GBE. Additionally, to further demonstrate the potential apoptosis-associated mechanism, L-02 cells were pre-incubated with p53 inhibitor pifithrin-α (PFTα), ataxia telangiectasia-mutated (ATM)/ataxia telangiectasia-mutated and Rad3-related (ATR) inhibitor (CGK733) or GBE, then treated with sodium arsenite (NaAsO2) for 24 h. The results showed that GBE, PFTα or CGK733 significantly reduced arsenic-induced Chk1 expression and the ratios of p-p53/p53 and Bax/Bcl-2. In conclusion, Chk1-p53 pathway was involved in arsenic poisoning-induced hepatotoxicity, and inhibiting of Chk1-p53 pathway ameliorated hepatocyte apoptosis caused by coal-burning arsenic poisoning. The study provides a pivotal clue for understanding of the mechanism of arsenic poisoning-induced liver damage, and possible intervention strategies.
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Affiliation(s)
- Yuan Yang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Chunyan Liu
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Tingting Xie
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Dapeng Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Xiong Chen
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Lu Ma
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
| | - Aihua Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, 74628Guizhou Medical University, Guiyang, Guizhou, People's Republic of China
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Li Y, Xu C, Wang H, Liu X, Jiang L, Liang S, Wu Z, Wang Z, Zhou J, Xiao W, Guo Z, Wang Y. Systems pharmacology reveals the multi-level synergetic mechanism of action of Ginkgo biloba L. leaves for cardiomyopathy treatment. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113279. [PMID: 32810617 DOI: 10.1016/j.jep.2020.113279] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/06/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cardiomyopathy is a common cause of heart failure and may lead to increased risk of sudden cardiac death, lacking simple, safe and effective treatment strategies due to unclear pathogenesis. Ginkgo biloba L. leaves (GBLs), a traditional Chinese medicine (TCM), has been widely used in clinical medicine for improving blood circulation, and was demonstrated to be effective on cardiomyopathy in preclinical studies. However, because of the widely known holistic therapeutic philosophy via multi-target and multi-pathway effect for most TCMs, to explore its underlying molecular mechanisms of action (MoA) remains a great challenge. AIM OF STUDY Decipher the underlying MoA of GBLs for cardiomyopathy treatment: Study design and methods: An integrated systems pharmacology framework was employed to screen potential active compounds, identify therapeutic targets, explore the action pathways and verify mechanisms of GBLs with in vitro experiments. RESULTS We firstly confirmed the therapeutic effect of GBLs on cardiomyopathy and subsequently screened 27 active compounds from GBLs according to their pharmacokinetic properties. Then Probability Ensemble Approach was applied to identify the compound combinations that exert synergetic effect from GBLs. Network analysis and functional enrichment analysis demonstrated that these compounds exhibit synergistic therapeutic effect by acting on multiple targets and thereby regulating multiple pathways mainly involved in pro-survival, anti-apoptotic and anti-inflammatory processes. Finally, using a doxorubicin-induced myocardial injury model, therapeutic effect of ginkgolide A, ginkgolide B, isorhamnetin, as well as their synergistic effect on PI3K-AKT and NF-κB signaling pathways were validated in vitro. Importantly, we demonstrated that Ginkgo diterpene lactone meglumine injection (GDJ), an approved injection derived from GBLs, could be a promising agent for cardiomyopathy treatment. CONCLUSION Collectively, the multi-level synergetic mechanism of GBLs on cardiomyopathy treatment was demonstrated with systems pharmacology approach, providing a paradigm for deciphering the complicated MoA of TCMs.
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Affiliation(s)
- Yueping Li
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University, Shihezi, Xinjiang, 832002, China; State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China.
| | - Chi Xu
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, China.
| | - Haiqing Wang
- College of Life Science, Northwest University, Xi'an, Shaanxi, 710069, China.
| | - Xiaobing Liu
- Department of General Surgery, Chinese People's Liberation Army 69224 Army Hospital, Kuche, Xinjiang, 842000, China.
| | - Li Jiang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University, Shihezi, Xinjiang, 832002, China.
| | - Shengnan Liang
- School of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Ziyin Wu
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China.
| | - Zhenzhong Wang
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China
| | - Jun Zhou
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China.
| | - Wei Xiao
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China.
| | - Zihu Guo
- College of Life Science, Northwest University, Xi'an, Shaanxi, 710069, China.
| | - Yonghua Wang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi University, Shihezi, Xinjiang, 832002, China; State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Kanion Pharmaceutical Co. Ltd., Lianyungang, Jiangsu, 222002, China; College of Life Science, Northwest University, Xi'an, Shaanxi, 710069, China.
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Chen KJ. Chinese Expert Consensus on Clinical Application of Oral Ginkgo biloba Preparations (2020). Chin J Integr Med 2021; 27:163-169. [PMID: 33420582 DOI: 10.1007/s11655-021-3289-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2020] [Indexed: 11/24/2022]
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Ginkgo Biloba Leaf Extract Attenuates Atherosclerosis in Streptozotocin-Induced Diabetic ApoE-/- Mice by Inhibiting Endoplasmic Reticulum Stress via Restoration of Autophagy through the mTOR Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8134678. [PMID: 31080547 PMCID: PMC6442448 DOI: 10.1155/2019/8134678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 12/03/2018] [Accepted: 12/13/2018] [Indexed: 12/26/2022]
Abstract
Background There is a crosstalk between endoplasmic reticulum stress (ERS) and autophagy, and autophagy could attenuate endoplasmic reticulum stress-mediated apoptosis. Ginkgo biloba leaf extract (GBE) exerts vascular protection functions. The purpose of the present study is to investigate the role of autophagy in diabetic atherosclerosis (AS) and the effect of GBE on autophagy and ERS. Methods Network pharmacology was utilized to predict the targets and pathways of the active chemical compounds of Gingko biloba leaf to attenuate AS. ApoE−/− mice were rendered diabetic by intraperitoneal ingestion with streptozotocin combined with a high-fat diet. The diabetic mice were divided into five groups: model group, atorvastatin group, rapamycin group, and low- and high-dose GBE groups. Serum and tissue markers of autophagy or ERS markers, including the protein expression, were examined. Results The mammalian target of rapamycin (mTOR) and NF-κB signaling pathways were targeted by the active chemical compounds of GBE to attenuate AS predicted by network pharmacology. GBE reduced the plaque area/lumen area and the plaque lipid deposition area/intimal area and inhibited the expressions of CD68, MMP2, and MMP9. Rapamycin and GBE inhibited the expression of mTOR and SQSTM1/p62 which increased in the aorta of diabetic mice. In addition, GBE reduced the expression of ERS markers in diabetic mice. GBE reduced the serum lipid metabolism levels, blood glucose, and inflammatory cytokines. Conclusion Impaired autophagy and overactive endoplasmic reticulum stress contributed to diabetic atherosclerosis. mTOR inhibitor rapamycin and GBE attenuated diabetic atherosclerosis by inhibiting ERS via restoration of autophagy through inhibition of mTOR.
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Shu Z, Hussain Sh A, Shahen M, Wang H, Alagawany M, Abd El-Hac ME, Ali Kalhor S, Rashid M, Ali Shar P. Pharmacological Uses of Ginkgo biloba Extracts for Cardiovascular Disease and Coronary Heart Diseases. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2019.1.9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ginkgo biloba Leaf Extract Protects against Myocardial Injury via Attenuation of Endoplasmic Reticulum Stress in Streptozotocin-Induced Diabetic ApoE -/- Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2370617. [PMID: 29682154 PMCID: PMC5845491 DOI: 10.1155/2018/2370617] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/26/2017] [Accepted: 12/26/2017] [Indexed: 11/26/2022]
Abstract
Diabetes was induced in high-fat diet-fed ApoE−/− mice via administration of low-dose streptozotocin (STZ) for five days. Mice were then treated with GBE (200 or 400 mg/kg) by gastric gavage daily for 12 weeks. Mice in the untreated diabetic group received saline instead, and nondiabetic C57BL/6J mice served as controls. Collagen І and ІІІ mRNA expression was measured by real-time PCR. TNF-α, IL-1β mRNA levels, and NF-κB expression were determined to analyze intramyocardial inflammation. Hallmarks of endoplasmic reticulum stress- (ERS-) related apoptosis pathways, including phosphorylated c-Jun N-terminal kinase (p-JNK), C/EBP homologous protein (CHOP), caspase-12, and cleaved caspase-3, were analyzed by Western blotting. Diabetic ApoE−/− myocardial injury was associated with increased cardiomyocyte apoptosis (increased expression of p-JNK, CHOP, caspase-12, and cleaved caspase-3), interstitial fibrosis (increased mRNA levels of collagen І and ІІІ), and inflammation (increased mRNA levels of TNF-α and IL-1β, and NF-κB expression). GBE at 200 and 400 mg/kg/day significantly attenuated cardiomyocyte apoptosis, collagen deposition, and inflammation in diabetic mice via inhibition of the p-JNK, CHOP, and caspase-12 pathways. Serum levels of the proinflammatory cytokines (IL-6, IL-1β, and TNF-α), blood glucose, and lipid profiles were also regulated by GBE treatment. GBE might be beneficial in the treatment of diabetic myocardial injury.
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Tang Y, Zhou G, Yao L, Xue P, Yu D, Xu R, Shi W, Yao X, Yan Z, Duan JA. Protective effect of Ginkgo biloba leaves extract, EGb761, on myocardium injury in ischemia reperfusion rats via regulation of TLR-4/NF-κB signaling pathway. Oncotarget 2017; 8:86671-86680. [PMID: 29156826 PMCID: PMC5689716 DOI: 10.18632/oncotarget.21372] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 08/29/2017] [Indexed: 11/25/2022] Open
Abstract
Beneficial actions of EGb 761 against ischemia/reperfusion (I/R) injury in lung, brain and renal ischemia have been described. However, the relationship between EGb 761 and signal molecules in myocardial ischemia reperfusion has not been well elucidated. In this study, we investigated the effects and mechanism of EGb 761 preconditioning on anti-myocardial I/R injuries in vivo. Meanwhile, their potential anti-oxidative stress and anti-inflammation effect were assessed. Hemodynamic parameters were monitored as left ventricular systolic pressure, LV end-diastolic pressure and maximal rate of increase and decrease of left ventricular pressure (dP/dtmax). The oxidative stress indicators and inflammatory factors were also evaluated. Western blot method was used for analysis of toll-like receptor 4 (TLR4), p-TLR4, nuclear factor-κB (NF-κB), p-NF-κB p65, Bax and Bcl-2 protein expressions. EGb 761 significantly improved cardiac function, decreased levels of creatine kinase, aspartate aminotransferase and lactate dehydrogenase. EGb 761 also restrained the oxidative stress related to myocardial ischemia injury as evidenced by decreased malondialdehyde, superoxide dismutase, catalase, glutathione-peroxidase, glutathione reductase activity. Meanwhile, the inflammatory cascade was inhibited as evidenced by decreased cytokines such as tumor necrosis factor-α, interleukin-6 and interleukin-1β. Our results still showed that EGb 761 pretreatment significantly decrease the level of cleaved Bax, and increase the level of Bcl-2 in rats subjected to I/R injury. Simultaneously, the expressions of myocardial TLR4 and NF-κB were significantly decreased. It can be concluded that EGb 761 pretreatment was protected against myocardium I/R injury by decreasing oxidative stress, repressing inflammatory cascade in vivo and inhibiting TLR4/NF-κB pathway.
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Affiliation(s)
- Yuping Tang
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, Xianyang, 712083, China
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Guisheng Zhou
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lijun Yao
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Ping Xue
- Changzhou Institute for Food and Drug Control, Changzhou, 213000, China
| | - Danhong Yu
- The Children’s Hospital Affiliated to Soochow University, Suzhou, 215006, China
| | - Renjie Xu
- Shaoxing Second Hospital, Shaoxing, 312000, China
| | - Wen Shi
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xin Yao
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Zhaowei Yan
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210023, China
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Li W, Luo Z, Liu X, Fu L, Xu Y, Wu L, Shen X. Effect of Ginkgo biloba extract on experimental cardiac remodeling. Altern Ther Health Med 2015; 15:277. [PMID: 26268459 PMCID: PMC4534054 DOI: 10.1186/s12906-015-0719-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 06/11/2015] [Indexed: 11/10/2022]
Abstract
Background To investigate the ameliorated effects of an extract of Ginkgo biloba extract (GBE) on experimental cardiac remodeling in rats induced by acute cardiac infarction, and further explore the mechanism concentrated on myocardial type I collagen, transforming growth factor beta 1 (TGF-β1), matrix metalloproteinase 2 (MMP-2) and matrix metalloproteinase 9 (MMP-9), and provide the experimentaldata for clinical application of GBE. Methods Rats were divided into five groups (n = 20) as following: sham operation group (group A), acute myocardial infarction model group (group B), acute myocardial infarction model + aspirin (10 mg/kg) treatment group (group C), acute myocardial infarction model + captopril (20 mg/kg) treatment group (group D) and acute myocardial infarction model + Ginkgo biloba extract (100 mg/kg) treatment group (group E). The rat acute myocardial infarction model was reproduced by ligaturing the left anterior descending artery excluding the sham operation group which did not ligation only completed the operational process. Each group was further subdivided into treatment regimens lasting 4 weeks and 8 weeks. Immunohistochemistry and real-time polymerase chain reaction (PCR) methods were used to detect the protein expression and mRNA transcriptional levels of rat myocardial TGF-β1, type I collagen, MMP-2 and MMP-9. Results Compared with group B, regardless of the length of treatment (4 or 8 weeks), the TGF-β1, MMP-2 and MMP-9 mRNA transcriptional levels, and the protein expression levels of type I collagen, MMP-2 and MMP-9 in groups D, C and E were significantly decreased (P < 0.01). Furthermore, the mRNA expression levels of TGF-β1 in groups D, C and E were significantly lower after 8 weeks compared to after 4 weeks (P < 0.01), as were the expression levels of type I collagen in groups D, C and E (P < 0.05). There was no statistically significant difference in the protein expression levels of MMP-2 and MMP-9 between groups E and C. Conclusions GBE could inhibit experimental rat myocardial remodeling after acute myocardial infarction via reduced transcription of TGF-β1, MMP-2 and MMP-9 genes and by the decreased expression of type I collagen, MMP-2 and MMP-9 proteins in myocardial cells. Electronic supplementary material The online version of this article (doi:10.1186/s12906-015-0719-z) contains supplementary material, which is available to authorized users.
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