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Jiang H, Zhao Y, Feng P, Liu Y. Sulfiredoxin-1 Inhibits PDGF-BB-Induced Vascular Smooth Muscle Cell Proliferation and Migration by Enhancing the Activation of Nrf2/ARE Signaling. Int Heart J 2022; 63:113-121. [PMID: 35034915 DOI: 10.1536/ihj.21-213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sulfiredoxin1 (Srxn1), an endogenous antioxidant protein, is involved in cardiovascular diseases. In this study, we aimed to investigate the role of Srxn1 in VSMCs and its molecular mechanism. The murine vascular smooth muscle cells MOVAS were treated with different doses of platelet-derived growth factor-BB (PDGF-BB); then, Srxn1 expression was detected using reverse transcription-quantitative polymerase chain reaction and western blot analysis. MTT and wound healing assay were used to examine the effect of Srxn1 on MOVAS cell proliferation and migration. Reactive oxygen species (ROS) production, malondialdehyde (MDA) level, and superoxide dismutase (SOD) activity in MOVAS cells were detected using corresponding commercial kits. Moreover, the expression of proliferating cell nuclear antigen (PCNA), matrix metalloproteinase 2 (MMP-2), and nuclear factor erythroid-2-related factor 2 (Nrf2) /antioxidant response element (ARE) signaling-related proteins was detected using western blot analysis. In our study, PDGF-BB dose-dependently increased Srxn1 expression in MOVAS cells, and Srxn1 expression was increased with time dependence in PDGF-BB-treated MOVAS cells. The knockdown of Srxn1 increased PDGF-BB-induced the proliferation, migration, ROS production, MDA level, and the protein expression of PCNA and MMP-2, as well as decreased SOD activity and the expression of Nrf2/ARE signaling-related proteins in PDGF-BB-stimulated MOVAS cells. However, the overexpression of Srxn1 showed the opposite results to those of knockdown of Srxn1. Moreover, the inhibitory effects of Srxn1 overexpression on PDGF-BB induced proliferation, migration, ROS production, and MDA level and the promotion of Srxn1 overexpression on PDGF-BB induced SOD activity were partially reversed by the knockdown of Nrf2. Srxn1 inhibited PDGF-BB-induced proliferation, migration, and oxidative stress through activating Nrf2/ARE signaling.
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Affiliation(s)
- Haijie Jiang
- Department of Cardiology, The Second Affiliated Hospital of Dalian Medical University
| | - Yueyan Zhao
- Department of Cardiology, The Second Affiliated Hospital of Dalian Medical University
| | - Panyang Feng
- Department of Cardiology, The Second Affiliated Hospital of Dalian Medical University
| | - Yan Liu
- Department of Cardiology, The Second Affiliated Hospital of Dalian Medical University
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OUP accepted manuscript. J Pharm Pharmacol 2022; 74:843-860. [DOI: 10.1093/jpp/rgac015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 02/19/2022] [Indexed: 12/07/2022]
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TSPO ligands prevent the proliferation of vascular smooth muscle cells and attenuate neointima formation through AMPK activation. Acta Pharmacol Sin 2020; 41:34-46. [PMID: 31515530 PMCID: PMC7471478 DOI: 10.1038/s41401-019-0293-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 07/17/2019] [Indexed: 02/06/2023] Open
Abstract
Abnormal growth of the intimal layer of blood vessels (neointima formation) contributes to the progression of atherosclerosis and in-stent restenosis. Recent evidence shows that the 18-kDa translocator protein (TSPO), a mitochondrial membrane protein, is involved in diverse cardiovascular diseases. In this study we investigated the role of endogenous TSPO in neointima formation after angioplasty in vitro and in vivo. We established a vascular injury model in vitro by using platelet-derived growth factor-BB (PDGF-BB) to stimulate rat thoracic aortic smooth muscle cells (A10 cells). We found that treatment with PDGF-BB (1–20 ng/mL) dose-dependently increased TSPO expression in A10 cells, which was blocked in the presence of PKC inhibitor or MAPK inhibitor. Overexpression of TSPO significantly promoted the proliferation and migration in A10 cells, whereas downregulation of TSPO expression by siRNA or treatment with TSPO ligands PK11195 or Ro5-4864 (104 nM) produced the opposite effects. Furthermore, we found that PK11195 (10−104 nM) dose-dependently activated AMPK in A10 cells. PK11195-induced inhibition on the proliferation and migration of PDGF-BB-treated A10 cells were abolished by compound C (an AMPK-specific inhibitor, 103 nM). In rats with balloon-injured carotid arteries, TSPO expression was markedly upregulated in the carotid arteries. Administration of PK11195 (3 mg/kg every 3 days, ip), starting from the initial balloon injury and lasting for 2 weeks, greatly attenuated carotid neointima formation by suppressing balloon injury-induced phenotype switching of VSMCs (increased α-SMA expression). These results suggest that TSPO is a vascular injury-response molecule that promotes VSMC proliferation and migration and is responsible for the neointima formation after vascular injury, which provides a novel therapeutic target for various cardiovascular diseases including atherosclerosis and restenosis.
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Liu H, Chen H, Deng X, Peng Y, Zeng Q, Song Z, He W, Zhang L, Xiao T, Gao G, Li B. Knockdown of TRIM28 inhibits PDGF-BB-induced vascular smooth muscle cell proliferation and migration. Chem Biol Interact 2019; 311:108772. [PMID: 31351049 DOI: 10.1016/j.cbi.2019.108772] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/04/2019] [Accepted: 07/24/2019] [Indexed: 11/18/2022]
Abstract
Atherosclerosis is a common type of cardiovascular disease (CVD), remaining one of the leading causes of global death. Tripartite motif-containing 28 (TRIM28) is a member of TRIM family that has been found to be involved in atherosclerosis. However, the role of TRIM28 in atherosclerosis remains unknown. This study aimed to investigate the effects of TRIM28 on the phenotypic switching of human aortic smooth muscle cells (HASMCs), which is considered as a fundamental event during the development of atherosclerosis. The results showed that TRIM28 was highly expressed in human atherosclerotic tissues, as well in cultured HASMCs stimulated by platelet-derived growth factor subunit B homodimer (PDGF-BB). Knockdown of TRIM28 by transfection with siRNA targeting TRIM28 (si-TRIM28) significantly suppressed the PDGF-BB-induced cell proliferation and migration of HASMCs. Besides, knockdown of TRIM28 inhibited the expressions of matrix metalloproteinase (MMP)-2 and MMP-9. The VSMC markers including α-smooth muscle actin (α-SMA), calponin and SM22α were upregulated in TRIM28 knocked down HASMCs. Furthermore, knockdown of TRIM28 blocked PDGF-BB-induced NF-κB activation in HASMCs. Collectively, knockdown of TRIM28 prevented PDGF-BB-induced phenotypic switching of HASMCs, which might be mediated by the regulation of NF-κB signaling pathway.
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Affiliation(s)
- Hongtao Liu
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China.
| | - Hongwei Chen
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Xia Deng
- Pharmacy Department, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Yudong Peng
- Department of Institute of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei Province, China
| | - Qiutang Zeng
- Department of Institute of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei Province, China
| | - Zongren Song
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Wenping He
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Le Zhang
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Ting Xiao
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Gan Gao
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
| | - Bailin Li
- Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, 518110, Guangdong Province, China
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Yu J, Li Y, Liu X, Ma Z, Michael S, Orgah JO, Fan G, Zhu Y. Mitochondrial dynamics modulation as a critical contribution for Shenmai injection in attenuating hypoxia/reoxygenation injury. JOURNAL OF ETHNOPHARMACOLOGY 2019; 237:9-19. [PMID: 30880258 DOI: 10.1016/j.jep.2019.03.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 02/18/2019] [Accepted: 03/11/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenmai injection (SMI) is a CFDA-approved and widely prescribed herbal medicine injection in China for treating cardiac dysfunction, especially myocardial ischemia and reperfusion (I/R) injury. However, despite of its known clinical efficacy, the cardioprotective mechanisms of SMI remain to be established. AIM OF STUDY The present study aimed to investigate the role of SMI on mitophagy and mitochondrial dynamics in cardiomyocytes with a hypoxia/reperfusion (H/R) injury setting. MATERIALS AND METHODS H9c2 cardiomyocytes were subjected to 12 h of hypoxia followed by 2 h of reoxygenation to induce cellular injury. Multi-parameter imaging analysis was performed using Operetta High Content Imaging System to detect changes in mitochondrial function and morphological texture. The mPTP opening was directly assessed by analyzing mitochondrial calcein release in H9c2 and by Ca2+-induced swelling of isolated cardiac mitochondria. Mitochondrial respiration was measured by XF 24 analyzer of Seahorse Bioscience. RT-PCR and Western blotting analyses were used to detect mitophagy, mitochondrial fusion and fission biomarkers at the gene and protein levels. RESULTS Pretreatment of SMI significantly improved myocardial cell survival and protected against H/R-induced deterioration of mitochondrial structure and function, as evidenced by decreased mitochondrial mass and cytosolic Ca2+, increased mitochondrial membrane potential (ΔΨm) and mitochondrial morphology by SER Texture analysis, inhibited mPTP opening in H9c2 cells and isolated cardiac mitochondria, and alleviated severely impaired mitochondrial respiration. Mechanistically, SMI attenuated H/R injury by inducing mitophagy and then modulated mitochondrial dynamics as indicated by a significantly increased expression of LC3, Beclin 1, Parkin and Pink, and the inhibition of excessive mitochondria fission and increased mitochondrial fusion. Finally, the cardioprotective effect of SMI was confirmed in a LAD-induced cardiac dysfunction model in vivo. CONCLUSION We found that alleviation of H/R injury by pretreatment with SMI may be attributable to inducing mitophagy and modulating mitochondrial dynamics in cardiomyocytes, thereby providing a rationale for future clinical applications and potential mitoprotective therapy for MI/R injury.
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Affiliation(s)
- Jiahui Yu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Research and Development Center of CM, Tianjin International Joint Academy of Biotechnology & Medicine, Tianjin, China
| | - Yuhong Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinyan Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Research and Development Center of CM, Tianjin International Joint Academy of Biotechnology & Medicine, Tianjin, China
| | - Zhe Ma
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Research and Development Center of CM, Tianjin International Joint Academy of Biotechnology & Medicine, Tianjin, China
| | - Sarhene Michael
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - John O Orgah
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Research and Development Center of CM, Tianjin International Joint Academy of Biotechnology & Medicine, Tianjin, China
| | - Guanwei Fan
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, China.
| | - Yan Zhu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Research and Development Center of CM, Tianjin International Joint Academy of Biotechnology & Medicine, Tianjin, China.
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Wang T, Chen X, Yu J, Du Q, Zhu J, Yang M, Wu H, Wang M, Zhu Y. High-Throughput Electrophysiology Screen Revealed Cardiotoxicity of Strychnine by Selectively Targeting hERG Channel. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:1825-1840. [PMID: 30545237 DOI: 10.1142/s0192415x1850091x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Although the efficacy and the health care advantages of Chinese herbal medicine (CHM) have become increasingly recognized worldwide, the potential side effects and toxicity still restrict its broader application. This study established and applied an integrated platform anchored on automatic patch clamp system to screen and evaluate a collection of CHM extracts, compositions and monomeric compounds for in vitro cardiac toxicity. Of 1036 CHM samples screened, 2.79% significantly inhibited hERG channel activity. Among them, Strychnine was identified for the first time as a potent hERG inhibitor with an IC 50 of 6.65±1.04μ M in comparison to that of Dofetilide at 1.80±0.24μ M and Quinidine at 7.42±0.54μ M. Langendorff-perfusion experiments confirmed that strychnine increased QT interphase from 71.69±5.34 ms to 98.61±5.54 ms and decreased heart rates from 227.65±5.40 bmp to 162.91±14.70 bmp in isolated rat hearts. The cardiac toxicity effect of strychnine appears to be specific to hERG channel since an in vitro multiplex imaging analysis showed that it did not affect cellular phenotypes such as cell vitality, nucleus area, mitochondria mass and function, nor intracellular calcium in rat primary myocytes. This integrated high-throughput hERG patch clamp and high-content multi-parameter imaging cardiac toxicity screen approach should be useful for large-scale preclinical evaluation of complex Chinese herbal medicine.
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Affiliation(s)
- Taiyi Wang
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Xiaonan Chen
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Jiahui Yu
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Qunqun Du
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Jie Zhu
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Mingzhu Yang
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Honghua Wu
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Meng Wang
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
| | - Yan Zhu
- 1 Tianjin State Key Laboratory of Modern, Chinese Medicine, Tianjin University of Traditional, Chinese Medicine, Tianjin 300193, P. R. China.,2 Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, P. R. China
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Lin H, Ni T, Zhang J, Meng L, Gao F, Pan S, Luo H, Xu F, Ru G, Chi J, Guo H. Knockdown of Herp alleviates hyperhomocysteinemia mediated atherosclerosis through the inhibition of vascular smooth muscle cell phenotype switching. Int J Cardiol 2018; 269:242-249. [PMID: 30017525 DOI: 10.1016/j.ijcard.2018.07.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/29/2018] [Accepted: 07/06/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Phenotypic switching of vascular smooth muscle cells (VSMCs) plays a key role in atherosclerosis. We aimed to investigate whether Homocysteine-responsive endoplasmic reticulum protein (Herp) was involved in VSMC phenotypic switching and affected atheroprogression. METHODS To assess the role of Herp in homocysteine (Hcy)-associated atherosclerosis, Herp-/- and LDLR-/- double knockout mice were generated and fed with a high methionine diet (HMD) to induce Hyperhomocysteinemia (HHcy). Atherosclerotic lesions, cholesterol homeostasis, endoplasmic reticulum (ER) stress activation, and the phenotype of VSMCs were assessed in vivo. We used siRNAs to knockdown Herp in cultured VSMCs to further validate our findings in vitro. RESULTS HMD significantly activated the activating transcription factor 6 (ATF6)/Herp arm of ER stress in LDLR-/- mice, and induced the phenotypic switch of VSMCs, with the loss of contractile proteins (SMA and calponin) and an increase of OPN protein. Herp-/-/LDLR-/- mice developed reduced atherosclerotic lesions in the aortic sinus and the whole aorta when compared with LDLR-/- mice. However, Herp deficiency had no effect on diet-induced HHcy and hyperlipidemia. Inhibition of VSMC phenotypic switching, decreased proliferation and collagen accumulation were observed in Herp-/-/LDLR-/- mice when compared with LDLR-/- mice. In vitro experiments demonstrated that Hcy caused VSMC phenotypic switching, promoted cell proliferation and migration; this was reversed by Herp depletion. We achieved similar results via inhibition of ER stress using 4-phenylbutyric-acid (4-PBA) in Hcy-treated VSMCs. CONCLUSION Herp deficiency inhibits the phenotypic switch of VSMCs and the development of atherosclerosis, thus providing novel insights into the role of Herp in atherogenesis.
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Affiliation(s)
- Hui Lin
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Tingjuan Ni
- Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
| | - Jie Zhang
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Liping Meng
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Feidan Gao
- Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang, China
| | - Sunlei Pan
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Hangqi Luo
- Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
| | - Fukang Xu
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Guomei Ru
- Medical Research Center, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China
| | - Jufang Chi
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China.
| | - Hangyuan Guo
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, Zhejiang, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China.
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