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Algoet M, Pusovnik M, Gillijns H, Mestdagh S, Billiau J, Artoos I, Gsell W, Janssens SP, Himmelreich U, Oosterlinck W. Remotely Triggered LAD Occlusion Using a Balloon Catheter in Spontaneously Breathing Mice. J Vis Exp 2024. [PMID: 38587368 DOI: 10.3791/66386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024] Open
Abstract
Acute myocardial infarction (AMI) is a prevalent and high-mortality cardiovascular condition. Despite advancements in revascularization strategies for AMI, it frequently leads to myocardial ischemia-reperfusion injury (IRI), amplifying cardiac damage. Murine models serve as vital tools for investigating both acute injury and chronic myocardial remodeling in vivo. This study presents a unique closed-chest technique for remotely inducing myocardial IRI in mice, enabling the investigation of the very early phase of occlusion and reperfusion using in-vivo imaging such as MRI or PET. The protocol utilizes a remote occlusion method, allowing precise control over ischemia initiation after chest closure. It reduces surgical trauma, enables spontaneous breathing, and enhances experimental consistency. What sets this technique apart is its potential for simultaneous noninvasive imaging, including ultrasound and magnetic resonance imaging (MRI), during occlusion and reperfusion events. It offers a unique opportunity to analyze tissue responses in almost real-time, providing critical insights into processes during ischemia and reperfusion. Extensive systematic testing of this innovative approach was conducted, measuring cardiac necrosis markers for infarction, assessing the area at risk using contrast-enhanced MRI, and staining infarcts at the scar maturation stage. Through these investigations, emphasis was placed on the value of the proposed tool in advancing research approaches to myocardial ischemia-reperfusion injury and accelerating the development of targeted interventions. Preliminary findings demonstrating the feasibility of combining the proposed innovative experimental protocol with noninvasive imaging techniques are presented herein. These initial results highlight the benefit of utilizing the purpose-built animal cradle to remotely induce myocardial ischemia while simultaneously conducting MRI scans.
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Affiliation(s)
| | - Matic Pusovnik
- Biomedical MRI, Department of Imaging and Pathology, KU Leuven
| | | | - Sien Mestdagh
- Biomedical MRI, Department of Imaging and Pathology, KU Leuven
| | | | - Ineke Artoos
- Department of Cardiovascular Sciences, KU Leuven
| | - Willy Gsell
- Biomedical MRI, Department of Imaging and Pathology, KU Leuven
| | | | - Uwe Himmelreich
- Biomedical MRI, Department of Imaging and Pathology, KU Leuven
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Bai Y, Chen Y, Jin Q, Deng C, Xu L, Huang T, He S, Fu Y, Qiu J, Xu J, Gao T, Wu W, Lv Q, Yang Y, Zhang L, Xie M, Dong X, Wang J. Platelet membrane-derived biomimetic microbubbles with enhanced targeting ability for the early detection of myocardial ischemia-reperfusion injury. Colloids Surf B Biointerfaces 2024; 234:113680. [PMID: 38101143 DOI: 10.1016/j.colsurfb.2023.113680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/19/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is a widely recognized cardiovascular disease that significantly impacts the prognosis of patients undergoing myocardial infarction recanalization. This condition can be fatal and involves complex pathophysiological mechanisms. Early diagnosis of MIRI is crucial to minimize myocardial damage and reducing mortality. Based on the inherent relationship between platelets and MIRI, we developed biomimetic microbubbles coated with platelet membrane (MB-pla) for early identification of MIRI. The MB-pla were prepared through a recombination process involving platelet membrane obtained from rat whole blood and phospholipids, blended in appropriate proportions. By coating the microbubbles with platelet membrane, MB-pla acquired various adhesion molecules, thereby gaining the capability to selectively adhere to damaged endothelial cells in the context of MIRI. In vitro experiments demonstrated that MB-pla exhibited remarkable targeting characteristics, particularly toward type IV collagen and human umbilical vein endothelial cells that had been injured through hypoxia/reoxygenation procedures. In a rat model of MIRI, the signal intensity produced by MB-pla was notably higher than that of control microbubbles. These findings were consistent with results obtained from fluorescence imaging of isolated hearts and immunofluorescence staining of tissue sections. In conclusion, MB-pla has great potential as a non-invasive early detection method for MIRI. Furthermore, this approach can potentially find application in other conditions involving endothelial injury in the future.
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Affiliation(s)
- Ying Bai
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yihan Chen
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China; Department of Ultrasonography, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiaofeng Jin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Cheng Deng
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Lingling Xu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Tian Huang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Shukun He
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yanan Fu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Jiani Qiu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Jia Xu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Tang Gao
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Wenqian Wu
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Qing Lv
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yali Yang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Li Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China; Shenzhen Huazhong University of Science and Technology Research Institute, China
| | - Mingxing Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China; Shenzhen Huazhong University of Science and Technology Research Institute, China
| | - Xiaoqiu Dong
- Department of Ultrasonography, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Jing Wang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Clinical Research Center for Medical Imaging in Hubei Province, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China.
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Yang W, Wang Y, Fu C, Li C, Feng F, Li H, Tan L, Qu H, Hui H, Wang J, Tian J, Long L. Quantitative visualization of myocardial ischemia-reperfusion-induced cardiac lesions via ferroptosis magnetic particle imaging. Theranostics 2024; 14:1081-1097. [PMID: 38250046 PMCID: PMC10797296 DOI: 10.7150/thno.89190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Abstract
Myocardial ischemia-reperfusion (MI/R) injury is a complication in vascular reperfusion therapy for MI, occurring in approximately 60% of patients. Ferroptosis is an important process in the development of MI/R cardiac lesions. Transferrin receptor 1 (TfR1), a marker of ferroptosis, corresponds to the changes in MI/R cardiac lesions and is expected to be a biomarker for detecting MI/R-induced ferroptosis. However, the noninvasive in vivo visualization of ferroptosis in MI/R is a big challenge. Thus, this study aimed to develop a novel multimodal imaging platform to identify markers of MI/R cardiac lesions in vivo through targeting TfR1. Methods: Magnetic particle imaging (MPI) modality for ferroptosis based on superparamagnetic cubic-iron oxide nanoparticles (SCIO NPs), named feMPI, has been developed. FeMPI used TfR1 as a typical biomarker. The feMPI probe (SCIO-ICG-CRT-CPPs NPs, CCI NPs) consists of SCIO NPs, TfR1-targeting peptides (CRT), cell-penetrating peptides (CPPs), and indocyanine green (ICG). The specificity and sensitivity of CCI NPs in the MI/R mouse model were evaluated by MPI, magnetic resonance imaging (MRI), and near-infrared (NIR) fluorescent imaging. Results: The intensity of the MPI signal correlates linearly with the percentage of infarct area in MI/R stained by TTC, enabling a quantitative assessment of the extent of cardiac lesions. Notably, these findings are consistent with the standard clinical biochemical indicators in MI/R within the first 24 h. FeMPI detects cardiac injury approximately 48 h prior to the current clinical imaging detection methods of MI/R. Conclusion: The feMPI strategy can be a powerful tool for studying the process of MI/R-induced ferroptosis in vivo, providing clues for molecular imaging and drug development of ferroptosis-related treatments.
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Affiliation(s)
- Wenwen Yang
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Yueqi Wang
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Changgeng Fu
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
| | - Changjian Li
- School of Engineering Medicine, Beihang University, Beijing 100191, People's Republic of China
| | - Feng Feng
- College of Energy Engineering, Zhejiang university, Zhejiang 310058, People's Republic of China
| | - Hongzheng Li
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
- Beijing University of Traditional Chinese Medicine Graduate School, Beijing University of Chinese Medicine, Beijing, 100105, People's Republic of China
| | - Ling Tan
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
| | - Hua Qu
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
| | - Hui Hui
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Jingjing Wang
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Department of Cardiovascular Medicine, First Medical Center, General Hospital of the People's Liberation Army of China,Beijing, 100853, People's Republic of China
| | - Jie Tian
- CAS Key Laboratory of Molecular Imaging, Beijing Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Linzi Long
- Department of Cardiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, People's Republic of China
- National Clinical Research Center for Cardiovascular Diseases of Traditional Chinese Medicine, Beijing, 100091, People's Republic of China
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, People's Republic of China
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Nie C, A R, Wang J, Pan S, Zou R, Wang B, Xi S, Hong X, Zhou M, Wang H, Yu M, Wu L, Sun X, Yang W. Controlled Release of Hydrogen-Carrying Perfluorocarbons for Ischemia Myocardium-Targeting 19 F MRI-Guided Reperfusion Injury Therapy. Adv Sci (Weinh) 2023; 10:e2304178. [PMID: 37596718 PMCID: PMC10582447 DOI: 10.1002/advs.202304178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/20/2023] [Indexed: 08/20/2023]
Abstract
Hydrogen gas is recently proven to have anti-oxidative and anti-inflammation effects on ischemia-reperfusion injury. However, the efficacy of hydrogen therapy is limited by the efficiency of hydrogen storage, targeted delivery, and controlled release. In this study, H2 -PFOB nanoemulsions (NEs) is developed with high hydrogen loading capacity for targeted ischemic myocardium precision therapy. The hydrogen-carrying capacity of H2 -PFOB NEs is determined by gas chromatography and microelectrode methods. Positive uptake of H2 -PFOB NEs in ischemia-reperfusion myocardium and the influence of hydrogen on 19 F-MR signal are quantitatively visualized using a 9.4T MR imaging system. The biological therapeutic effects of H2 -PFOB NEs are examined on a myocardial ischemia-reperfusion injury mouse model. The results illustrated that the developed H2 -PFOB NEs can efficaciously achieve specific infiltration into ischemic myocardium and exhibit excellent antioxidant and anti-inflammatory properties on myocardial ischemia-reperfusion injury, which can be dynamically visualized by 19 F-MR imaging system. Moreover, hydrogen burst release induced by low-intensity focused ultrasound (LIFU) irradiation further promotes the therapeutic effect of H2 -PFOB NEs with a favorable biosafety profile. In this study, the potential therapeutic effects of H2 -PFOB NEs is fully unfolded, which may hold great potential for future hydrogen-based precision therapeutic applications tailored to ischemia-reperfusion injury.
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Affiliation(s)
- Chaoqun Nie
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Rong A
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Jing Wang
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Shuang Pan
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Rentong Zou
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Bin Wang
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Shuiqing Xi
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Xiaojian Hong
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Meifang Zhou
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Haoyu Wang
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Mengshu Yu
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
| | - Lina Wu
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Xilin Sun
- Department of Nuclear MedicineThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
- NHC Key Laboratory of Molecular Probe and Targeted TheranosticsMolecular Imaging Research Center (MIRC) of Harbin Medical University150000HarbinP. R. China
| | - Wei Yang
- Department of CardiologyThe Fourth Hospital of Harbin Medical University150000HarbinP. R. China
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Guo Z, Wang A, Gao Y, Xie E, Ye Z, Li Y, Zhao X, Shen N, Zheng J. Dynamic Assessments of Coronary Flow Reserve after Myocardial Ischemia Reperfusion in Mice. J Vis Exp 2023. [PMID: 37677023 DOI: 10.3791/65391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
After cardiac ischemia, there is often insufficient myocardial perfusion, even if flow has been successfully and completely restored in an upstream artery. This phenomenon, known as the "no-reflow phenomenon," is attributed to coronary microvascular dysfunction and has been associated with poor clinical outcomes. In clinical practice, a reduction in coronary flow reserve (CFR) is frequently used as an indicator of coronary artery disease. CFR is defined as the ratio of the peak flow velocity induced by pharmacologic or metabolic factors to the resting flow velocity. This protocol focused on assessing the dynamic changes in CFR before and after ischemia-reperfusion (IR) using pulse wave Doppler measurements. In this study, normal mice exhibited the ability to increase the peak velocity of coronary blood flow up to two times higher than the resting values under isoflurane stimulation. However, after ischemia-reperfusion, the CFR at 1 h significantly decreased compared to the pre-operation baseline. Over time, the CFR showed gradual recovery, but it remained below the normal level. Despite the preservation of systolic function, early detection of microvascular dysfunction is crucial, and establishing a practical guide could aid doctors in this task, while also facilitating the study of cardiovascular disease progression over time.
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Affiliation(s)
- Ziyu Guo
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine
| | - Ao Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education
| | - Yanxiang Gao
- Department of Cardiology, China-Japan Friendship Hospital. No 2 Yinghua Dongjie
| | - Enmin Xie
- Graduate School of Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Zixiang Ye
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine
| | - Yike Li
- Graduate School of Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Xuecheng Zhao
- Department of Cardiology, China-Japan Friendship Hospital. No 2 Yinghua Dongjie
| | - Nan Shen
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine
| | - Jingang Zheng
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine;
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Sun Y, Zhang P, Li Y, Hou Y, Yin C, Wang Z, Liao Z, Fu X, Li M, Fan C, Sun D, Cheng L. Light-Activated Gold-Selenium Core-Shell Nanocomposites with NIR-II Photoacoustic Imaging Performances for Heart-Targeted Repair. ACS Nano 2022; 16:18667-18681. [PMID: 36264835 DOI: 10.1021/acsnano.2c07311] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Mitochondrial dysfunction and oxidative damage represent important pathological mechanisms of myocardial ischemia-reperfusion injury (MI/RI). Searching for potential antioxidant agents to attenuate MI/RI is of great significance in clinic. Herein, gold-selenium core-shell nanostructures (AS-I/S NCs) with good near-infrared (NIR)-II photoacoustic imaging were designed for MI/RI treatment. The AS-I/S NCs after ischemic myocardium-targeted peptide (IMTP) and mitochondrial-targeted antioxidant peptide SS31 modification achieved cardiomyocytes-targeted cellular uptake and enhanced antioxidant ability and significantly inhibited oxygen-glucose deprivation-recovery (OGD/R)-induced cardiotoxicity of H9c2 cells by inhibiting the depletion of mitochondrial membrane potential (MMP) and restoring ATP synthase activity. Furthermore, the AS-I/S NCs after SS31 modification achieved mitochondria-targeted inhibition of reactive oxygen species (ROS) and subsequently attenuated oxidative damage in OGD/R-treated H9c2 cells by inhibition of apoptosis and oxidative damage, regulation of MAPKs and PI3K/AKT pathways. The in vivo AS-I/S NCs administration dramatically improved myocardial functions and angiogenesis and inhibited myocardial fibrosis through inhibiting myocardial apoptosis and oxidative damage in MI/RI of rats. Importantly, the AS-I/S NCs showed good safety and biocompatibility in vivo. Therefore, our findings validated the rational design that mitochondria-targeted selenium-gold nanocomposites could attenuate MI/RI of rats by inhibiting ROS-mediated oxidative damage and regulating MAPKs and PI3K/AKT pathways, which could be a potential therapy for the MI/RI treatment.
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Affiliation(s)
- Yu Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Pu Zhang
- Department of Cardiology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong 271000, China
| | - Yuqing Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yajun Hou
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Chenyang Yin
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zekun Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Ziyu Liao
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Xiaoyan Fu
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Man Li
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Cundong Fan
- Department of Neurology, Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000 Shandong China
| | - Dongdong Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
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Su H, Lu D, Shen M, Feng L, Xu C. Evaluating the cardioprotective effect of metformin on myocardial ischemia-reperfusion injury using dynamic 18F-FDG micro-PET/CT imaging. BMC Cardiovasc Disord 2022; 22:310. [PMID: 35811313 PMCID: PMC9272551 DOI: 10.1186/s12872-022-02750-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/06/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The molecular mechanisms of protective effect of metformin (Met) on ischemic myocardium have not been fully understood. This study aims to evaluate the cardioprotective effect of metformin on myocardial ischemia-reperfusion injury (MIRI) in rat models at different time points using dynamic 18F-FDG micro-PET/CT imaging. METHODS The I/R injury model in SD rats was established by ligation of left anterior descending coronary artery near the pulmonary arch root for 30 min. SD rats (n = 12) were randomly divided into 2 groups: Control group (n = 6) without any intervention and Met group (n = 6) with oral administration of metformin (50 mg/kg) twice a day. Gated 18F-FDG (40Mbq) micro-PET/CT imaging was performed for 10 min at different time points (day 1st, day 7th, day 14th and day 30th after operation). Volumes of interest were drawn to identify different myocardium regions (ischemia center, peri-ischemia area and remote area). Standardized uptake values (SUVs) (SUVmean and SUVmax) were analyzed to evaluate the FDG uptake activity, and then the center/remote ratio was calculated. In addition, the left ventricular (LV) end-diastolic volume (EDV), end-systolic volume (ESV) and LV ejection fraction (LVEF) were obtained. On the 30th day, all rats were scarified and myocardial ischemia was analyzed by HE staining and confirmed by pathology. RESULTS In the Control group, the center/remote ratio showed no obvious change trend at each time point after reperfusion, while the LV EDV increased gradually over time, and they were significantly negatively correlated (r = - 0.507, p < 0.05). In the Met group, the center/remote ratio gradually increased with time, there was no significant correlation between center/remote ratio and LV EDV (r = - 0.078, p > 0.05). On the 30th day, the center/remote ratio of the Met group was significantly higher than that of the Control group (0.81 ± 0.06 vs. 0.65 ± 0.09, p < 0.05), while LV EDV in Met group was significantly lower than in Control group (358.21 ± 22.62 vs. 457.53 ± 29.91, p < 0.05). There was no significant difference of LVEF between Met group and Control group at different time points after reperfusion (p < 0.05). HE staining showed that the myocardial infarction and fibrosis in ischemic center area of the Control group was more serious than that of the Met group. CONCLUSIONS Met could attenuate the severity of MIRI, delay and prevent the progress of LV remodeling. The cardioprotective progress could be dynamically assessed by 18F-FDG micro-PET/CT imaging.
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Affiliation(s)
- Hang Su
- Department of Nuclear Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Diyu Lu
- Department of Nuclear Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Mingkui Shen
- School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan District, Shenzhen, 518055, People's Republic of China
| | - Li Feng
- School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan District, Shenzhen, 518055, People's Republic of China
| | - Chuangye Xu
- School of Medicine, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan District, Shenzhen, 518055, People's Republic of China.
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Liu T, Howarth AG, Chen Y, Nair AR, Yang HJ, Ren D, Tang R, Sykes J, Kovacs MS, Dey D, Slomka P, Wood JC, Finney R, Zeng M, Prato FS, Francis J, Berman DS, Shah PK, Kumar A, Dharmakumar R. Intramyocardial Hemorrhage and the "Wave Front" of Reperfusion Injury Compromising Myocardial Salvage. J Am Coll Cardiol 2022; 79:35-48. [PMID: 34991787 DOI: 10.1016/j.jacc.2021.10.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/04/2021] [Accepted: 10/12/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND Reperfusion therapy for acute myocardial infarction (MI) is lifesaving. However, the benefit of reperfusion therapy can be paradoxically diminished by reperfusion injury, which can increase MI size. OBJECTIVES Hemorrhage is known to occur in reperfused MIs, but whether hemorrhage plays a role in reperfusion-mediated MI expansion is not known. METHODS We studied cardiac troponin kinetics (cTn) of ST-segment elevation MI patients (n = 70) classified by cardiovascular magnetic resonance to be hemorrhagic (70%) or nonhemorrhagic following primary percutaneous coronary intervention. To isolate the effects of hemorrhage from ischemic burden, we performed controlled canine studies (n = 25), and serially followed both cTn and MI size with time-lapse imaging. RESULTS CTn was not different before reperfusion; however, an increase in cTn following primary percutaneous coronary intervention peaked earlier (12 hours vs 24 hours; P < 0.05) and was significantly higher in patients with hemorrhage (P < 0.01). In hemorrhagic animals, reperfusion led to rapid expansion of myocardial necrosis culminating in epicardial involvement, which was not present in nonhemorrhagic cases (P < 0.001). MI size and salvage were not different at 1 hour postreperfusion in animals with and without hemorrhage (P = 0.65). However, within 72 hours of reperfusion, a 4-fold greater loss in salvageable myocardium was evident in hemorrhagic MIs (P < 0.001). This paralleled observations in patients with larger MIs occurring in hemorrhagic cases (P < 0.01). CONCLUSIONS Myocardial hemorrhage is a determinant of MI size. It drives MI expansion after reperfusion and compromises myocardial salvage. This introduces a clinical role of hemorrhage in acute care management, risk assessment, and future therapeutics.
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Affiliation(s)
- Ting Liu
- Cedars-Sinai Medical Center, Los Angeles, California, USA; Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Andrew G Howarth
- Cedars-Sinai Medical Center, Los Angeles, California, USA; University of Calgary, Calgary, Alberta, Canada
| | - Yinyin Chen
- Cedars-Sinai Medical Center, Los Angeles, California, USA; Zhongshan Hospital, Fudan University and Shanghai Institute of Medical Imaging, Shanghai, China
| | - Anand R Nair
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Hsin-Jung Yang
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Daoyuan Ren
- Zhongshan Hospital, Fudan University and Shanghai Institute of Medical Imaging, Shanghai, China
| | - Richard Tang
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Jane Sykes
- Lawson Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Michael S Kovacs
- Lawson Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Damini Dey
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Piotr Slomka
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - John C Wood
- University of Southern California, Los Angeles, California, USA
| | | | - Mengsu Zeng
- Zhongshan Hospital, Fudan University and Shanghai Institute of Medical Imaging, Shanghai, China
| | - Frank S Prato
- Lawson Research Institute, University of Western Ontario, London, Ontario, Canada
| | | | | | | | - Andreas Kumar
- Northern Ontario School of Medicine, Sudbury, Ontario, Canada
| | - Rohan Dharmakumar
- Cedars-Sinai Medical Center, Los Angeles, California, USA; Krannert Cardiovascular Research Center, Indiana University School of Medicine/IU Health Cardiovascular Institute, Indianapolis, Indiana, USA.
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9
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Qin X, Qin H, Li Z, Xue S, Huang B, Liu X, Wang D. Luteolin alleviates ischemia/reperfusion injury-induced no-reflow by regulating Wnt/β-catenin signaling in rats. Microvasc Res 2022; 139:104266. [PMID: 34688627 DOI: 10.1016/j.mvr.2021.104266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 12/21/2022]
Abstract
The no-reflow phenomenon induced by ischemia-reperfusion (I/R) injury seriously limits the therapeutic value of coronary recanalization and leads to a poor prognosis. Previous studies have shown that luteolin (LUT) is a vasoprotective factor. However, whether LUT can be used to prevent the no-reflow phenomenon remains unknown. Positron emission tomography perfusion imaging, performed to detect the effects of LUT on the no-reflow phenomenon in vivo, revealed that LUT treatment was able to reduce the no-reflow area in rat I/R models. In vitro, LUT was shown to reduce the hypoxia-reoxygenation injury-induced endothelial permeability and apoptosis. The levels of malondialdehyde, reactive oxygen species and NADPH were also measured and the results indicated that LUT could inhibit the oxidative stress. Western blot analysis revealed that LUT protected endothelial cells from I/R injury by regulating the Wnt/β-catenin pathway. Overall, we concluded that the use of LUT to minimize I/R induced microvascular damage is a feasible strategy to prevent the no-reflow phenomenon.
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Affiliation(s)
- Xichun Qin
- Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; Department of Thoracic Surgery, Affiliated Hospital of Xuzhou Medical University, Jiangsu, China
| | - Hao Qin
- Department of Thoracic Surgery, Affiliated Hospital of Xuzhou Medical University, Jiangsu, China
| | - Zhimin Li
- Xuzhou Central Hospital, 99 West Huaihai Road, Xuzhou 221006, Jiangsu, China
| | - Song Xue
- Department of Cardiology, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Bing Huang
- Department of Cardiology, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Xiucheng Liu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; Institute of Cardiothoracic Vascular Disease, Nanjing University, Nanjing, China.
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10
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Moon BF, Iyer SK, Josselyn NJ, Hwuang E, Swago S, Keeney SJ, Castillero E, Ferrari G, Pilla JJ, Gorman JH, Gorman RC, Tschabrunn C, Shou H, Matthai W, Wehrli FW, Ferrari VA, Han Y, Litt H, Witschey WR. Magnetic susceptibility and R2* of myocardial reperfusion injury at 3T and 7T. Magn Reson Med 2022; 87:323-336. [PMID: 34355815 PMCID: PMC9067599 DOI: 10.1002/mrm.28955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 01/03/2023]
Abstract
PURPOSE Magnetic susceptibility (Δχ) alterations have shown association with myocardial infarction (MI) iron deposition, yet there remains limited understanding of the relationship between relaxation rates and susceptibility or the effect of magnetic field strength. Hence, Δχ and R 2 ∗ in MI were compared at 3T and 7T. METHODS Subacute MI was induced by coronary artery ligation in male Yorkshire swine. 3D multiecho gradient echo imaging was performed at 1-week postinfarction at 3T and 7T. Quantitative susceptibility mapping images were reconstructed using a morphology-enabled dipole inversion. R 2 ∗ maps and quantitative susceptibility mapping were generated to assess the relationship between R 2 ∗ , Δχ, and field strength. Infarct histopathology was investigated. RESULTS Magnetic susceptibility was not significantly different across field strengths (7T: 126.8 ± 41.7 ppb; 3T: 110.2 ± 21.0 ppb, P = NS), unlike R 2 ∗ (7T: 247.0 ± 14.8 Hz; 3T: 106.1 ± 6.5 Hz, P < .001). Additionally, infarct Δχ and R 2 ∗ were significantly higher than remote myocardium. Magnetic susceptibility at 7T versus 3T had a significant association (β = 1.02, R2 = 0.82, P < .001), as did R 2 ∗ (β = 2.35, R2 = 0.98, P < .001). Infarct pathophysiology and iron deposition were detected through histology and compared with imaging findings. CONCLUSION R 2 ∗ showed dependence and Δχ showed independence of field strength. Histology validated the presence of iron and supported imaging findings.
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Affiliation(s)
- Brianna F. Moon
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Srikant Kamesh Iyer
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicholas J. Josselyn
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Eileen Hwuang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Sophia Swago
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Samuel J. Keeney
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Estibaliz Castillero
- Department of Surgery, Columbia University Irving Medical Center, New York City, NY, USA
| | - Giovanni Ferrari
- Department of Surgery, Columbia University Irving Medical Center, New York City, NY, USA
| | - James J. Pilla
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph H. Gorman
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert C. Gorman
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Cory Tschabrunn
- Department of Medicine, Division of Cardiovascular Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Haochang Shou
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - William Matthai
- Department of Medicine, Penn Presbyterian Medical Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Felix W. Wehrli
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Victor A. Ferrari
- Department of Medicine, Division of Cardiovascular Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yuchi Han
- Department of Medicine, Division of Cardiovascular Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Harold Litt
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Medicine, Division of Cardiovascular Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Walter R. Witschey
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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11
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Zou Y, Li L, Li Y, Chen S, Xie X, Jin X, Wang X, Ma C, Fan G, Wang W. Restoring Cardiac Functions after Myocardial Infarction-Ischemia/Reperfusion via an Exosome Anchoring Conductive Hydrogel. ACS Appl Mater Interfaces 2021; 13:56892-56908. [PMID: 34823355 DOI: 10.1021/acsami.1c16481] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Both myocardial infarction (MI) and the follow-up reperfusion will lead to an inevitable injury to myocardial tissues, such as cardiac dysfunctions, fibrosis, and reduction of intercellular cell-to-cell interactions. Recently, exosomes (Exo) derived from stem cells have demonstrated a robust capability to promote angiogenesis and tissue repair. However, the short half-life of Exo and rapid clearance lead to insufficient therapeutic doses in the lesion area. Herein, an injectable conductive hydrogel is constructed to bind Exo derived from human umbilical cord mesenchymal stem cells to treat myocardial injuries after myocardial infarction-ischemia/reperfusion (MI-I/R). To this end, a hyperbranched epoxy macromer (EHBPE) grafted by an aniline tetramer (AT) was synthesized to cross-link thiolated hyaluronic acid (HA-SH) and thiolated Exo anchoring a CP05 peptide via an epoxy/thiol "click" reaction. The resulting Gel@Exo composite system possesses multiple features, such as controllable gelation kinetics, shear-thinning injectability, conductivity matching the native myocardium, soft and dynamic stability adapting to heartbeats, and excellent cytocompatibility. After being injected into injured hearts of rats, the hydrogel effectively prolongs the retention of Exo in the ischemic myocardium. The cardiac functions have been considerably improved by Gel@Exo administration, as indicated by the enhancing ejection fraction and fractional shortening, and reducing fibrosis area. Immunofluorescence staining and reverse transcription-polymerase chain reaction (RT-PCR) results demonstrate that the expression of cardiac-related proteins (Cx43, Ki67, CD31, and α-SMA) and genes (VEGF-A, VEGF-B, vWF, TGF-β1, MMP-9, and Serca2a) are remarkably upregulated. The conductive Gel@Exo system can significantly improve cell-to-cell interactions, promote cell proliferation and angiogenesis, and result in a prominent therapeutic effect on MI-I/R, providing a promising therapeutic method for injured myocardial tissues.
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Affiliation(s)
- Yang Zou
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Lan Li
- Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- State Key Laboratory of Component-based Chinese Medicine; Key Laboratory of Pharmacology of Traditional Chinese Medicine Formulae, Ministry of Education; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yuan Li
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Si Chen
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Xianhua Xie
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Xin Jin
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Xiaodan Wang
- State Key Laboratory of Component-based Chinese Medicine; Key Laboratory of Pharmacology of Traditional Chinese Medicine Formulae, Ministry of Education; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Chuanrui Ma
- State Key Laboratory of Component-based Chinese Medicine; Key Laboratory of Pharmacology of Traditional Chinese Medicine Formulae, Ministry of Education; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Guanwei Fan
- Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- State Key Laboratory of Component-based Chinese Medicine; Key Laboratory of Pharmacology of Traditional Chinese Medicine Formulae, Ministry of Education; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Wei Wang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
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12
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Kirschner A, Koch SE, Robbins N, Karthik F, Mudigonda P, Ramasubramanian R, Nieman ML, Lorenz JN, Rubinstein J. Pharmacologic Inhibition of Pain Response to Incomplete Vascular Occlusion Blunts Cardiovascular Preconditioning Response. Cardiovasc Toxicol 2021; 21:889-900. [PMID: 34324134 DOI: 10.1007/s12012-021-09680-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/22/2021] [Indexed: 12/01/2022]
Abstract
Complete vascular occlusion to distant tissue prior to an ischemic cardiac event can provide significant cardioprotection via remote ischemic preconditioning (RIPC). Despite understanding its mechanistic basis, its translation to clinical practice has been unsuccessful, likely secondary to the inherent impossibility of predicting (and therefore preconditioning) an ischemic event, as well as the discomfort that is associated with traditional, fully occlusive RIPC stimuli. Our laboratory has previously shown that non-occlusive banding (NOB) via wrapping of a leather band (similar to a traditional Jewish ritual) can elicit an RIPC response in healthy human subjects. This study sought to further the pain-mediated aspect of this observation in a mouse model of NOB with healthy mice that were exposed to treatment with and without lidocaine to inhibit pain sensation prior to ischemia/reperfusion injury. We demonstrated that NOB downregulates key inflammatory markers resulting in a preconditioning response that is partially mediated via pain sensation.
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Affiliation(s)
- Akiva Kirschner
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Sheryl E Koch
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Nathan Robbins
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Felix Karthik
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Parvathi Mudigonda
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Ranjani Ramasubramanian
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Michelle L Nieman
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - John N Lorenz
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jack Rubinstein
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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13
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Wu Z, Li X, Li X, Yu L. Effects of Aspirin on Myocardial Ischemia-Reperfusion Injury in Rats through STAT3 Signaling Pathway. Biomed Res Int 2021; 2021:9931885. [PMID: 34307673 PMCID: PMC8285181 DOI: 10.1155/2021/9931885] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/29/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To investigate the role and mechanism of aspirin in myocardial injury induced by myocardial ischemia-reperfusion in rats through STAT3 signaling pathway. METHODS Sixty rats were randomly divided into three groups: the sham operation group, MI/R group, and MI/R+aspirin group (aspirin group). The rats in the sham operation group did not ligate the LAD coronary artery, while the aspirin group ligated the LAD coronary artery, which caused the suture to be loosened after 30 minutes ischemia, and 60 mg/kg aspirin was injected into the tail vein 10 minutes before reperfusion. After three hours of reperfusion, the ultrasound system was used to collect hemodynamic parameters, including ejection fraction (EF%), shortening fraction (FS%), and left ventricular end-systolic pressure (LVESP%) and left ventricular end-diastolic pressure (LVEDP%). Finally, the rats were euthanized; then, blood samples were taken for biochemical examination, myocardial tissue was collected, and the left ventricle was used for subsequent experiments. The gene expression levels of Bax and Bcl-2 were detected by PCR. The protein expression levels of Bcl-2, Bax, p-JAK2, total JAK2, p-STAT3, and total STAT3 were detected by Western blot. RESULTS Compared with the sham operation group and the aspirin group, the area of myocardial infarction in the MI/R was significantly increased (p < 0.05). In terms of hemodynamic parameters, LVEDP was significantly elevated in the MI/R group. The results of PCR showed that compared with the MI/R group, the mRNA expression of Bax in the aspirin group was significantly decreased, while that of Bcl-2 was significantly increased (p < 0.05). Western blot analysis showed that compared with the MI/R group, aspirin pretreatment significantly increased the expression levels of p-STAT3 and p-JAK2 (p < 0.05). CONCLUSION The mechanism of aspirin preconditioning to protect the heart from MI/R injury appears to be related to JAK2/STAT3 and related to the activation of the signaling pathway.
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Affiliation(s)
- Zhenjun Wu
- Cardiology Department, Tianjin Huaxing Hospital, Tianjin 300270, China
| | - Xuewen Li
- Cadre's Ward, Characteristic Medical Center of Chinese People's Armed Police Force 300, Tianjin 300171, China
| | - Xiuyue Li
- Cardiology Department, Xianshuigu Hospital of Jinnan District, Tianjin 300350, China
| | - Lihua Yu
- Beijing Chaoyang Integrative Medicine Emergency Medical Center, Beijing 100022, China
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14
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Sharifi M, Nazarinia D, Ramezani F, Azizi Y, Naderi N, Aboutaleb N. Necroptosis and RhoA/ROCK pathways: molecular targets of Nesfatin-1 in cardioprotection against myocardial ischemia/reperfusion injury in a rat model. Mol Biol Rep 2021; 48:2507-2518. [PMID: 33755849 DOI: 10.1007/s11033-021-06289-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
Nesfatin-1 as a new energy-regulating peptide has been known to display a pivotal role in modulation of cardiovascular functions and protection against ischemia/reperfusion injury. However, the detailed knowledge about molecular mechanisms underlying this protection has not been completely investigated yet. This study was designed to clarify the molecular mechanisms by which nesfatin-1 exert cardioprotection effects against myocardial ischemia-reperfusion (MI/R). Left anterior descending coronary artery (LAD) was ligated for 30 min to create a MI/R model in rats. MI/R rats were treated with three concentrations of nesfatin-1 (10, 15 and 20 µg/kg) then expression of necroptosis and necrosis mediators were measured by western blotting assay. Fibrosis, morphological damages, cardiac function, myocardial injury indictors and oxidative stress factors were evaluated as well. Induction of MI/R model resulted in cardiac dysfunction, oxidative stress, increased activity of RIPK1-RIPK3-MLKL axis and RhoA/ROCK pathway, extension of fibrosis and heart tissue damage. Highest tested concentration of nesfatin-1 markedly improved cardiac function. Moreover, it reduced oxidative stress, collagen deposition, and morphological damages, through inhibiting the expression of necroptosis mediators and also, necrosis including RIPK1, RIPK3, MLKL, ROCK1, and ROCK2 proteins. The lowest and middle tested concentrations of nesfatin-1 failed to exert protective effects against MI/R. These findings have shown that nesfatin-1 can exert cardioprotection against MI/R in a dose dependent manner by suppressing necroptosis via modulation of RIPK1-RIPK3-MLKL axis and RhoA/ROCK/RIP3 signaling pathway.
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Affiliation(s)
- Masoomeh Sharifi
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Donya Nazarinia
- Department of Physiology, School of Paramedical Sciences, Dezful University of Medical Sciences, Dezful, Iran
| | - Fatemeh Ramezani
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Yaser Azizi
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nasim Naderi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Aboutaleb
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran.
- Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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15
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Zhang Y, Chen X, Liu L, Tian J, Hao L, Ran HT. Photoacoustic Imaging of Myocardial Infarction Region Using Non-Invasive Fibrin-Targeted Nanoparticles in a Rat Myocardial Ischemia-Reperfusion Model. Int J Nanomedicine 2021; 16:1331-1344. [PMID: 33628023 PMCID: PMC7898240 DOI: 10.2147/ijn.s293736] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/30/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND PURPOSE Myocardial infarction (MI) is a serious threat to public health. The early identification of MI is important to promote appropriate treatment strategies for patients. Recently, strategies targeting extracellular matrix (ECM) components have gained attention. Fibrin is an ECM protein involved after MI. In this work, we constructed fibrin-targeted nanoparticles (NPs) by co-assembling a fibrin-targeted peptide (CREKA) and indocyanine green (ICG) and used them to enhance photoacoustic (PA) imaging for noninvasive detection of the infarct region to help diagnose MI. METHODS ICG NPs modified with CREKA were prepared (CREKA-ICG-LIP NPs). Then, the fundamental characteristics, stability, safety, and targeting ability of the NPs were detected. Finally, in an ischemia-reperfusion (IR) injury model, the performance of the NPs in detecting the infarct region in the model on PA imaging was evaluated. RESULTS CREKA-ICG-LIP NPs were successfully constructed and showed excellent basic characteristics, a high safety level, and an excellent targeting ability. After intravenous injection, the CREKA-ICG-LIP NPs accumulated in the injured region in the IR model. Then, the PA signal in the infarct region could be detected by the ultrasound transducer of the Vevo LAZR Photoacoustic Imaging System. CONCLUSION This work provides new insights for non-invasive, real-time imaging techniques to detect the region of myocardial injury and help diagnose MI based on a PA imaging system with high sensitivity in optical imaging and deep penetration in ultrasound imaging.
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Affiliation(s)
- Yanan Zhang
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
- Chongqing Key Laboratory of Pediatrics, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
| | - Xiajing Chen
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
- Chongqing Key Laboratory of Pediatrics, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
| | - Lingjuan Liu
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
- Chongqing Key Laboratory of Pediatrics, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
| | - Jie Tian
- Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
- Chongqing Key Laboratory of Pediatrics, Children’s Hospital of Chongqing Medical University, Chongqing, 400014, People’s Republic of China
| | - Lan Hao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Hai-tao Ran
- Chongqing Key Laboratory of Ultrasound Molecular Imaging & Department of Ultrasound, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
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16
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Yang Y, Schena GJ, Wang T, Houser SR. Postsurgery echocardiography can predict the amount of ischemia-reperfusion injury and the resultant scar size. Am J Physiol Heart Circ Physiol 2021; 320:H690-H698. [PMID: 33356964 DOI: 10.1152/ajpheart.00672.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 11/22/2022]
Abstract
Despite advances in the diagnosis and treatment of ischemic heart disease (IHD), it remains the leading cause of death globally. Thus, there is a need to investigate the underlying pathophysiology and develop new therapies for the prevention and treatment of IHD. Murine models are widely used in IHD research because they are readily available, relatively inexpensive, and can be genetically modified to explore mechanistic questions. Ischemia-reperfusion (I/R)-induced myocardial infarction in mice is produced by the blockage followed by reperfusion of the left anterior descending branch (LAD) to imitate human IHD disease and its treatment. This I/R model can be widely used to investigate the potential reparative effect of putative treatments in the setting of reperfusion. However, the surgical technique is demanding and can produce an inconsistent amount of damage, which can make identification of treatment effects challenging. Therefore, determining which hearts have been significantly damaged by I/R is an important consideration in studies designed to either explore the mechanisms of disrupted function or test possible therapies. Noninvasive echocardiography (ECHO) is often used to determine structural and functional changes in the mouse heart following injury. In the present study, we determined that ECHO performed 3 days post I/R surgery could predict the permanent injury produced by the ischemic insult.NEW & NOTEWORTHY We believe our work is noteworthy due to its creation of standards for early evaluation of the level of myocardial injury in mouse models of ischemia-reperfusion. This improvement to study design could reduce the sample sizes used in evaluating therapeutics and lead to increased confidence in conclusions drawn regarding the therapeutic efficacy of treatments tested in these translational mouse models.
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Affiliation(s)
- Yijun Yang
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
- Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Giana J Schena
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
- Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Tao Wang
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
- Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Steven R Houser
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
- Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
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17
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Abstract
BACKGROUND Intramyocardial hemorrhage following reperfusion is strongly associated with major adverse cardiovascular events in myocardial infarction (MI) patients; yet the mechanisms contributing to these outcomes are not well understood. Large animal models have been used to investigate intramyocardial hemorrhage, but they are exorbitantly expensive and difficult to use for mechanistic studies. In contrast, rat models are widely used to investigate mechanistic aspects of cardiovascular physiology, but a rat model that consistently recapitulates the characteristics of an hemorrhagic MI does not exist. To bridge this gap, we investigated the physiological conditions of MI that would create intramyocardial hemorrhage in rats so that a reliable model of hemorrhagic MI would become available for basic research. METHODS & RESULTS Sprague-Dawley rats underwent either a 90-minute (90-min) ischemia and then reperfusion (I/R) (n = 22) or 30-minute (30-min) I/R (n = 18) of the left anterior descending coronary artery. Sham rats (n = 12) were used as controls. 90-min I/R consistently yielded hemorrhagic MI, while 30-min I/R consistently yielded non-hemorrhagic MI. Twenty-four hours post-reperfusion, ex-vivo late-gadolinium-enhancement (LGE) and T2* cardiac MRI performed on excised hearts from 90-min I/R rats revealed colocalization of iron deposits within the scarred tissue; however, in 30-min I/R rats scar was evident on LGE but no evidence of iron was found on T2* CMR. Histological studies verified tissue damage (H&E) detected on LGE and the presence of iron (Perl's stain) observed on T2*-CMR. At week 4 post-reperfusion, gene and protein expression of proinflammatory markers (TNF-α, IL-1β and MMP-9) were increased in the 90-min I/R group when compared to 30-min I/R groups. Further, transmission electron microscopy performed on 90-min I/R myocardium that were positive for iron on T2* CMR and Perl's stain showed accumulation of granular iron particles within the phagosomes. CONCLUSION Ischemic time prior to reperfusion is a critical factor in determining whether a MI is hemorrhagic or non-hemorrhagic in rats. Specifically, a period of 90-min of ischemia prior to reperfusion can produce rat models of hemorrhagic MI, while 30-minutes of ischemia prior to reperfusion can ensure that the MIs are non-hemorrhagic. Hemorrhagic MIs in rats result in marked increase in iron deposition, proinflammatory burden and adverse left-ventricular remodeling compared to rats with non-hemorrhagic MIs.
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Affiliation(s)
- Anand R. Nair
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
| | - Eric A. Johnson
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
- Department of Bioengineering, University of California, Los Angeles, CA, United States of America
| | - Hsin-Jung Yang
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
| | - Ivan Cokic
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
- Division of Cardiology, Department of Medicine, University of California, Los Angeles, CA, United States of America
| | - Joseph Francis
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
| | - Rohan Dharmakumar
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
- Division of Cardiology, Department of Medicine, University of California, Los Angeles, CA, United States of America
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18
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Sasaki T, Shimazawa M, Kanamori H, Yamada Y, Nishinaka A, Kuse Y, Suzuki G, Masuda T, Nakamura S, Hosokawa M, Minatoguchi S, Hara H. Effects of progranulin on the pathological conditions in experimental myocardial infarction model. Sci Rep 2020; 10:11842. [PMID: 32678228 PMCID: PMC7367277 DOI: 10.1038/s41598-020-68804-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022] Open
Abstract
Progranulin is a secreted growth factor associated with multiple physiological functions in ischemic pathophysiology. However, it is still not fully understood how progranulin is involved in ischemic lesion and cardiac remodeling after myocardial infarction (MI). In this study, we investigated the effects of progranulin on myocardial ischemia and reperfusion injury. We investigated progranulin expression using Western blotting and immunostaining after permanent left coronary artery (LCA) occlusion in mice. Infarct size and the number of infiltrating neutrophils were measured 24 h after permanent LCA occlusion. Recombinant mouse progranulin was administered before LCA occlusion. In addition, we evaluated cardiac function using cardiac catheterization and echocardiography, and fibrosis size by Masson's trichrome staining after myocardial ischemia/reperfusion in rabbits. Recombinant human progranulin was administered immediately after induction of reperfusion. Progranulin expression increased in the myocardial ischemic area 1, 3, and 5 days after permanent LCA occlusion in mice. The administration of recombinant mouse progranulin significantly attenuated infarct size and infiltrating neutrophils 24 h after permanent LCA occlusion in mice. We also found that administration of recombinant human progranulin ameliorated the deterioration of cardiac dysfunction and fibrosis after myocardial ischemia/reperfusion in rabbits. These findings suggest that progranulin may protect myocardial ischemia/reperfusion injury.
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Affiliation(s)
- Takahiro Sasaki
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masamitsu Shimazawa
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Hiromitsu Kanamori
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoshihisa Yamada
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Anri Nishinaka
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Yoshiki Kuse
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Genjiro Suzuki
- Dementia Research Project, Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Tomomi Masuda
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Shinsuke Nakamura
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masato Hosokawa
- Dementia Research Project, Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Shinya Minatoguchi
- Department of Circulatory and Respiratory Advanced Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
- Heart Failure Center, Gifu Municipal Hospital, Gifu, Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan.
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19
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Moon BF, Iyer SK, Hwuang E, Solomon MP, Hall AT, Kumar R, Josselyn NJ, Higbee-Dempsey EM, Tsourkas A, Imai A, Okamoto K, Saito Y, Pilla JJ, Gorman JH, Gorman RC, Tschabrunn C, Keeney SJ, Castillero E, Ferrari G, Jockusch S, Wehrli FW, Shou H, Ferrari VA, Han Y, Gulhane A, Litt H, Matthai W, Witschey WR. Iron imaging in myocardial infarction reperfusion injury. Nat Commun 2020; 11:3273. [PMID: 32601301 PMCID: PMC7324567 DOI: 10.1038/s41467-020-16923-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 05/22/2020] [Indexed: 11/09/2022] Open
Abstract
Restoration of coronary blood flow after a heart attack can cause reperfusion injury potentially leading to impaired cardiac function, adverse tissue remodeling and heart failure. Iron is an essential biometal that may have a pathologic role in this process. There is a clinical need for a precise noninvasive method to detect iron for risk stratification of patients and therapy evaluation. Here, we report that magnetic susceptibility imaging in a large animal model shows an infarct paramagnetic shift associated with duration of coronary artery occlusion and the presence of iron. Iron validation techniques used include histology, immunohistochemistry, spectrometry and spectroscopy. Further mRNA analysis shows upregulation of ferritin and heme oxygenase. While conventional imaging corroborates the findings of iron deposition, magnetic susceptibility imaging has improved sensitivity to iron and mitigates confounding factors such as edema and fibrosis. Myocardial infarction patients receiving reperfusion therapy show magnetic susceptibility changes associated with hypokinetic myocardial wall motion and microvascular obstruction, demonstrating potential for clinical translation.
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Affiliation(s)
- Brianna F Moon
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Srikant Kamesh Iyer
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Eileen Hwuang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael P Solomon
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Anya T Hall
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Rishabh Kumar
- Department of Biophysics, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicholas J Josselyn
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Elizabeth M Higbee-Dempsey
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Akito Imai
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Keitaro Okamoto
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yoshiaki Saito
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - James J Pilla
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph H Gorman
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert C Gorman
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Cory Tschabrunn
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Samuel J Keeney
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Estibaliz Castillero
- Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Giovanni Ferrari
- Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | | | - Felix W Wehrli
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Haochang Shou
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Victor A Ferrari
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yuchi Han
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Avanti Gulhane
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Harold Litt
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - William Matthai
- Department of Medicine, Penn Presbyterian Medical Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Walter R Witschey
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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20
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Whitaker J, Neji R, Byrne N, Puyol-Antón E, Mukherjee RK, Williams SE, Chubb H, O’Neill L, Razeghi O, Connolly A, Rhode K, Niederer S, King A, Tschabrunn C, Anter E, Nezafat R, Bishop MJ, O’Neill M, Razavi R, Roujol S. Improved co-registration of ex-vivo and in-vivo cardiovascular magnetic resonance images using heart-specific flexible 3D printed acrylic scaffold combined with non-rigid registration. J Cardiovasc Magn Reson 2019; 21:62. [PMID: 31597563 PMCID: PMC6785908 DOI: 10.1186/s12968-019-0574-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 09/02/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Ex-vivo cardiovascular magnetic resonance (CMR) imaging has played an important role in the validation of in-vivo CMR characterization of pathological processes. However, comparison between in-vivo and ex-vivo imaging remains challenging due to shape changes occurring between the two states, which may be non-uniform across the diseased heart. A novel two-step process to facilitate registration between ex-vivo and in-vivo CMR was developed and evaluated in a porcine model of chronic myocardial infarction (MI). METHODS Seven weeks after ischemia-reperfusion MI, 12 swine underwent in-vivo CMR imaging with late gadolinium enhancement followed by ex-vivo CMR 1 week later. Five animals comprised the control group, in which ex-vivo imaging was undertaken without any support in the LV cavity, 7 animals comprised the experimental group, in which a two-step registration optimization process was undertaken. The first step involved a heart specific flexible 3D printed scaffold generated from in-vivo CMR, which was used to maintain left ventricular (LV) shape during ex-vivo imaging. In the second step, a non-rigid co-registration algorithm was applied to align in-vivo and ex-vivo data. Tissue dimension changes between in-vivo and ex-vivo imaging were compared between the experimental and control group. In the experimental group, tissue compartment volumes and thickness were compared between in-vivo and ex-vivo data before and after non-rigid registration. The effectiveness of the alignment was assessed quantitatively using the DICE similarity coefficient. RESULTS LV cavity volume changed more in the control group (ratio of cavity volume between ex-vivo and in-vivo imaging in control and experimental group 0.14 vs 0.56, p < 0.0001) and there was a significantly greater change in the short axis dimensions in the control group (ratio of short axis dimensions in control and experimental group 0.38 vs 0.79, p < 0.001). In the experimental group, prior to non-rigid co-registration the LV cavity contracted isotropically in the ex-vivo condition by less than 20% in each dimension. There was a significant proportional change in tissue thickness in the healthy myocardium (change = 29 ± 21%), but not in dense scar (change = - 2 ± 2%, p = 0.034). Following the non-rigid co-registration step of the process, the DICE similarity coefficients for the myocardium, LV cavity and scar were 0.93 (±0.02), 0.89 (±0.01) and 0.77 (±0.07) respectively and the myocardial tissue and LV cavity volumes had a ratio of 1.03 and 1.00 respectively. CONCLUSIONS The pattern of the morphological changes seen between the in-vivo and the ex-vivo LV differs between scar and healthy myocardium. A 3D printed flexible scaffold based on the in-vivo shape of the LV cavity is an effective strategy to minimize morphological changes in the ex-vivo LV. The subsequent non-rigid registration step further improved the co-registration and local comparison between in-vivo and ex-vivo data.
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Affiliation(s)
- John Whitaker
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Radhouene Neji
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
- Siemens Healthcare Limited, Frimley, UK
| | - Nicholas Byrne
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
- Medical Physics, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
| | - Esther Puyol-Antón
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Rahul K. Mukherjee
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Steven E. Williams
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Henry Chubb
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Louisa O’Neill
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Orod Razeghi
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Adam Connolly
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Kawal Rhode
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Steven Niederer
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Andrew King
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Cory Tschabrunn
- Cardiology Department, University of Pennsylvania, Philadelphia, PA USA
| | - Elad Anter
- Cardiology Department, Beth Israel Deaconess Medical Centre / Harvard Medical School, Boston, MA USA
| | - Reza Nezafat
- Cardiology Department, Beth Israel Deaconess Medical Centre / Harvard Medical School, Boston, MA USA
| | - Martin J. Bishop
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Mark O’Neill
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Reza Razavi
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
| | - Sébastien Roujol
- School of Biomedical Engineering and Imaging Sciences, King’s College, London, Fourth Floor Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
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21
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Merz SF, Korste S, Bornemann L, Michel L, Stock P, Squire A, Soun C, Engel DR, Detzer J, Lörchner H, Hermann DM, Kamler M, Klode J, Hendgen-Cotta UB, Rassaf T, Gunzer M, Totzeck M. Contemporaneous 3D characterization of acute and chronic myocardial I/R injury and response. Nat Commun 2019; 10:2312. [PMID: 31127113 PMCID: PMC6534576 DOI: 10.1038/s41467-019-10338-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 05/07/2019] [Indexed: 12/11/2022] Open
Abstract
Cardioprotection by salvage of the infarct-affected myocardium is an unmet yet highly desired therapeutic goal. To develop new dedicated therapies, experimental myocardial ischemia/reperfusion (I/R) injury would require methods to simultaneously characterize extent and localization of the damage and the ensuing inflammatory responses in whole hearts over time. Here we present a three-dimensional (3D), simultaneous quantitative investigation of key I/R injury-components by combining bleaching-augmented solvent-based non-toxic clearing (BALANCE) using ethyl cinnamate (ECi) with light sheet fluorescence microscopy. This allows structural analyses of fluorescence-labeled I/R hearts with exceptional detail. We discover and 3D-quantify distinguishable acute and late vascular I/R damage zones. These contain highly localized and spatially structured neutrophil infiltrates that are modulated upon cardiac healing. Our model demonstrates that these characteristic I/R injury patterns can detect the extent of damage even days after the ischemic index event hence allowing the investigation of long-term recovery and remodeling processes.
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Affiliation(s)
- Simon F Merz
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany
- Department of Dermatology, Venerology and Allergology, University Hospital Essen, 45147, Essen, Germany
| | - Sebastian Korste
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany
| | - Lea Bornemann
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany
| | - Lars Michel
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany
| | - Pia Stock
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany
| | - Anthony Squire
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany
| | - Camille Soun
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany
| | - Daniel R Engel
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany
| | - Julia Detzer
- Dept. of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
| | - Holger Lörchner
- Dept. of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner site Rhine-Main, Frankfurt am Main, Germany
| | - Dirk M Hermann
- Department of Neurology, University Hospital Essen, 45147, Essen, Germany
| | - Markus Kamler
- Department of Thoracic and Cardiovascular Surgery, University Hospital Essen, 45147, Essen, Germany
| | - Joachim Klode
- Department of Dermatology, Venerology and Allergology, University Hospital Essen, 45147, Essen, Germany
| | - Ulrike B Hendgen-Cotta
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, 45147, Essen, Germany.
| | - Matthias Totzeck
- Department of Cardiology and Vascular Medicine, University Hospital Essen, 45147, Essen, Germany.
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22
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De Maria GL, Alkhalil M, Wolfrum M, Fahrni G, Borlotti A, Gaughran L, Dawkins S, Langrish JP, Lucking AJ, Choudhury RP, Porto I, Crea F, Dall'Armellina E, Channon KM, Kharbanda RK, Banning AP. Index of Microcirculatory Resistance as a Tool to Characterize Microvascular Obstruction and to Predict Infarct Size Regression in Patients With STEMI Undergoing Primary PCI. JACC Cardiovasc Imaging 2019; 12:837-848. [PMID: 29680355 DOI: 10.1016/j.jcmg.2018.02.018] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/21/2018] [Accepted: 02/22/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVES This study aimed to compare the value of the index of microcirculatory resistance (IMR) and microvascular obstruction (MVO) measured by cardiac magnetic resonance (CMR) in patients treated for and recovering from ST-segment elevation myocardial infarction. BACKGROUND IMR can identify patients with microvascular dysfunction acutely after primary percutaneous coronary intervention (pPCI), and a threshold of >40 has been shown to be associated with an adverse clinical outcome. Similarly, MVO is recognized as an adverse feature in patients with ST-segment elevation myocardial infarction. Even though both IMR and MVO reflect coronary microvascular status, the interaction between these 2 parameters is uncertain. METHODS A total of 110 patients treated with pPCI were included, and IMR was measured immediately at completion of pPCI. Infarct size (IS) as a percentage of left ventricular mass was quantified at 48 h (38.4 ± 12.0 h) and 6 months (194.0 ± 20.0 days) using CMR. MVO was identified and quantified at 48 h by CMR. RESULTS Overall, a discordance between IMR and MVO was observed in 36.7% of cases, with 31 patients having MVO and IMR ≤40. Compared with patients with MVO and IMR ≤40, patients with both MVO and IMR >40 had an 11.9-fold increased risk of final IS >25% at 6 months (p = 0.001). Patients with MVO and IMR ≤40 had a significantly smaller IS at 6 months (p = 0.001), with significant regression in IS over time (34.4% [interquartile range (IQR): 27.3% to 41.0%] vs. 22.3% [IQR: 16.0% to 30.0%]; p = 0.001). CONCLUSIONS Discordant prognostic information was obtained from IMR and MVO in nearly one-third of cases; however, IMR can be helpful in grading the degree and severity of MVO.
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Affiliation(s)
- Giovanni Luigi De Maria
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom; Acute Vascular Imaging Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Mohammad Alkhalil
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Mathias Wolfrum
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Gregor Fahrni
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Alessandra Borlotti
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom; Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence, University of Oxford, Oxford, United Kingdom
| | - Lisa Gaughran
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Sam Dawkins
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Jeremy P Langrish
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Andrew J Lucking
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Robin P Choudhury
- Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence, University of Oxford, Oxford, United Kingdom; Department of Cardiology, Policlinico A. Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Italo Porto
- Acute Vascular Imaging Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Filippo Crea
- Acute Vascular Imaging Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Erica Dall'Armellina
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom; Acute Vascular Imaging Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Keith M Channon
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Rajesh K Kharbanda
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Adrian P Banning
- Oxford Heart Centre, National Institute for Health Research Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom.
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Xie L, Hu D, Qin H, Zhang W, Zhang S, Feng Y, Yao H, Xiao Y, Yao K, Huang X. In vivo gum arabic-coated tetrahydrobiopterin protects against myocardial ischemia reperfusion injury by preserving eNOS coupling. Life Sci 2019; 219:294-302. [PMID: 30668954 DOI: 10.1016/j.lfs.2019.01.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/10/2019] [Accepted: 01/17/2019] [Indexed: 12/23/2022]
Abstract
AIMS Exogenous tetrahydrobiopterin (BH4), an indispensable cofactor of endothelial nitric oxide synthase (eNOS), supplementation has been proved to be of advantage to improve cardiovascular function. Nevertheless, due to its highly redox-sensitive and easy to be oxidized, there is an urgent need to develop an appropriate BH4 formulation for clinical therapy. Gum Arabic (GA) has been considered as an alternative biopolymer for the stabilization and coating of drugs. The effects of GA on protecting BH4 from being oxidized were investigated in a rat model of myocardial ischemia-reperfusion (I/R). MAIN METHODS Rats were subjected to 60-min of in vivo left coronary artery occlusion and varying periods of reperfusion with or without pre-ischemic GA-coated BH4 supplementation (10 mg/kg, oral). Myocardial infarction, fibrotic area and left ventricle ejection fraction were correlated with cardiac BH4 content, eNOS protein, NOS enzyme activity, and ROS/NO generation. KEY FINDINGS Pretreatment of rats with GA-coated 6R-BH4, 24 h before myocardial ischemia, resulted in smaller myocardial infarction, improved left ventricular function and inhibited fibrosis, correlated with maintained high levels of cardiac BH4 content, preserved eNOS activation and dimerization, and decreased ROS generation. However in uncoated group, 6R-BH4 treatment did not reduce acute and chronic myocardial I/R injury compared with control I/R rats, which was closely related with the marked loss of myocardial BH4 levels during I/R. SIGNIFICANCE These findings provide evidence that in vivo pre-ischemic oral GA-coated BH4 administration preserves eNOS function secondary to maintaining cardiac BH4 content, and confers cardioprotection after I/R.
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Affiliation(s)
- Lin Xie
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Key Laboratory of Organ Transplantation, Ministry of Education, China; NHC Key Laboratory of Organ Transplantation, China; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, China.
| | - Dan Hu
- Department of Neurology, Renmin Hospital of Wuhan University, China
| | - Huan Qin
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Wenliang Zhang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Shiyao Zhang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Yuan Feng
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Haozhe Yao
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Ying Xiao
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China
| | - Kai Yao
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei, China.
| | - Xia Huang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Key Laboratory of Organ Transplantation, Ministry of Education, China; NHC Key Laboratory of Organ Transplantation, China; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, China
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24
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Masci PG, Pavon AG, Muller O, Iglesias JF, Vincenti G, Monney P, Harbaoui B, Eeckhout E, Schwitter J. Relationship between CMR-derived parameters of ischemia/reperfusion injury and the timing of CMR after reperfused ST-segment elevation myocardial infarction. J Cardiovasc Magn Reson 2018; 20:50. [PMID: 30037343 PMCID: PMC6055335 DOI: 10.1186/s12968-018-0474-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 06/26/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND To investigate the influence of cardiovascular magnetic resonance (CMR) timing after reperfusion on CMR-derived parameters of ischemia/reperfusion (I/R) injury in patients with ST-segment elevation myocardial infarction (STEMI). METHODS The study included 163 reperfused STEMI patients undergoing CMR during the index hospitalization. Patients were divided according to the time between revascularization and CMR (Trevasc-CMR: Tertile-1 ≤ 43; 43 < Tertile-2 ≤ 93; Tertile-3 > 93 h). T2-mapping derived area-at-risk (AAR) and intramyocardial-hemorrhage (IMH), and late gadolinium enhancement (LGE)-derived infarct size (IS) and microvascular obstruction (MVO) were quantified. T1-mapping was performed before and > 15 min after Gd-based contrast-agent administration yielding extracellular volume (ECV) of infarct. RESULTS Main factors influencing I/R injury were homogenously balanced across Trevasc-CMR tertiles. T2 values of infarct and remote regions increased with increasing Trevasc-CMR tertiles (infarct: 60.0 ± 4.9 vs 63.5 ± 5.6 vs 64.8 ± 7.5 ms; P < 0.001; remote: 44.3 ± 2.8 vs 46.1 ± 2.8 vs ± 46.1 ± 3.0; P = 0.001). However, T2 value of infarct largely and significantly exceeded that of remote myocardium in each tertile yielding comparable T2-mapping-derived AAR extent throughout Trevasc-CMR tertiles (17 ± 9% vs 19 ± 9% vs 18 ± 8% of LV, respectively, P = 0.385). Similarly, T2-mapping-based IMH detection and quantification were independent of Trevasc-CMR. LGE-derived IS and MVO were not influenced by Trevasc-CMR (IS: 12 ± 9% vs 12 ± 9% vs 14 ± 9% of LV, respectively, P = 0.646). In 68 patients without MVO, T1-mapping based ECV of infarct region was comparable across Trevasc-CMR tertiles (P = 0.470). CONCLUSION In STEMI patients, T2 values of infarct and remote myocardium increase with increasing CMR time after revascularization. However, these changes do not give rise to substantial variation of T2-mapping-derived AAR size nor of other CMR-based parameters of I/R. TRIAL REGISTRATION ISRCTN03522116 . Registered 30.4.2018 (retrospectively registered).
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Affiliation(s)
- Pier-Giorgio Masci
- Centre of Cardiac Magnetic Resonance, University Hospital Lausanne-CHUV, Lausanne, Switzerland
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Anna Giulia Pavon
- Centre of Cardiac Magnetic Resonance, University Hospital Lausanne-CHUV, Lausanne, Switzerland
- Cardio-Thoracic-Vascular Department, San Raffaele’s Scientific Institute, Milan, Italy
| | - Olivier Muller
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Juan-Fernando Iglesias
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Gabriella Vincenti
- Centre of Cardiac Magnetic Resonance, University Hospital Lausanne-CHUV, Lausanne, Switzerland
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Pierre Monney
- Centre of Cardiac Magnetic Resonance, University Hospital Lausanne-CHUV, Lausanne, Switzerland
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Brahim Harbaoui
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Eric Eeckhout
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
| | - Juerg Schwitter
- Centre of Cardiac Magnetic Resonance, University Hospital Lausanne-CHUV, Lausanne, Switzerland
- Cardiology Division, Heart & Vessels Department, Lausanne University Hospital-CHUV, BH-09-792 Rue de Bugnon 46, CH-1011 Lausanne, Vaud Switzerland
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25
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Pontone G, Andreini D, Guaricci AI, Guglielmo M, Baggiano A, Muscogiuri G, Fusini L, Fazzari F, Berzovini C, Pasquini A, Mushtaq S, Conte E, Cosentino N, Rabbat MG, Marenzi G, Bartorelli AL, Pepi M, Tremoli E, Banfi C. Association Between Haptoglobin Phenotype and Microvascular Obstruction in Patients With STEMI: A Cardiac Magnetic Resonance Study. JACC Cardiovasc Imaging 2018; 12:1007-1017. [PMID: 29680345 DOI: 10.1016/j.jcmg.2018.03.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVES This study aimed to evaluate the correlation between different haptoglobin (Hp) phenotypes and myocardial infarction characteristics as detected by cardiac magnetic resonance (CMR) in consecutive patients after ST-segment elevation myocardial infarction (STEMI). BACKGROUND Hp is a plasma protein that prevents iron-mediated oxidative tissue damage. CMR has emerged as the gold standard technique to detect left ventricular ejection fraction (LVEF), extent of scar with late gadolinium enhancement (LGE) technique, microvascular obstruction (MVO), and myocardial hemorrhage (MH) in patients with STEMI treated by primary percutaneous coronary intervention (pPCI). METHODS A total of 145 consecutive STEMI patients (mean age 62.2 ± 10.3 years; 78% men) were prospectively enrolled and underwent Hp phenotyping and CMR assessment within 1 week after STEMI. RESULTS CMR showed an area at risk (AAR) involving 26.6 ± 19.1% of left ventricular (LV) mass with a late LGE extent of 15.2 ± 13.1% of LV mass. MVO and MH occurred in 38 (26%) and 12 (8%) patients, respectively. Hp phenotypes 1-1, 2-1, 2-2 were observed in 15 (10%), 62 (43%), and 68 (47%), respectively. Multivariable analysis demonstrated that body mass index, Hp2-2, diabetes, and peak troponin I were independent predictors of MVO with Hp2-2 associated with the highest odds ratio (OR) (OR: 5.5 [95% confidence interval [CI]: 2.1 to 14.3; p < 0.001]). Hp2-2 significantly predicted both the presence (area under the curve [AUC]: 0.63 [95% CI: 0.53 to 0.72; p = 0.008]) and extent of MVO (AUC: 0.63 [95% CI: 0.54 to 0.72; p = 0.007]). CONCLUSIONS Hp phenotype is an independent predictor of MVO. Therefore, Hp phenotyping could be used for risk stratification and may be useful in assessing new therapies to reduce myocardial reperfusion injury in patients with STEMI.
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Affiliation(s)
| | - Daniele Andreini
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Cardiovascular Sciences and Community Health, University of Milan, Milan, Italy
| | - Andrea I Guaricci
- Institute of Cardiovascular Disease, Department of Emergency and Organ Transplantation, University Hospital "Policlinico" of Bari, Bari, Italy; Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | | | | | | | - Laura Fusini
- Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Fabio Fazzari
- Department of Cardiology, University Hospital P. Giaccone, Palermo, Italy
| | - Claudio Berzovini
- Department of Surgical Sciences, Radiology Institute, University of Turin, Turin, Italy
| | - Annalisa Pasquini
- Department of Cardiology, "La Sapienza" University of Rome, Rome, Italy
| | | | | | | | - Mark G Rabbat
- Loyola University of Chicago, Chicago, Illinois; Edward Hines Jr. VA Hospital, Hines, Illinois
| | | | - Antonio L Bartorelli
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Biomedical and Clinical Sciences "Luigi Sacco," University of Milan, Milan, Italy
| | - Mauro Pepi
- Centro Cardiologico Monzino, IRCCS, Milan, Italy
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Meybohm P, Kohlhaas M, Stoppe C, Gruenewald M, Renner J, Bein B, Albrecht M, Cremer J, Coburn M, Schaelte G, Boening A, Niemann B, Sander M, Roesner J, Kletzin F, Mutlak H, Westphal S, Laufenberg-Feldmann R, Ferner M, Brandes IF, Bauer M, Stehr SN, Kortgen A, Wittmann M, Baumgarten G, Meyer-Treschan T, Kienbaum P, Heringlake M, Schoen J, Treskatsch S, Smul T, Wolwender E, Schilling T, Fuernau G, Bogatsch H, Brosteanu O, Hasenclever D, Zacharowski K. RIPHeart (Remote Ischemic Preconditioning for Heart Surgery) Study: Myocardial Dysfunction, Postoperative Neurocognitive Dysfunction, and 1 Year Follow-Up. J Am Heart Assoc 2018; 7:e008077. [PMID: 29581218 PMCID: PMC5907591 DOI: 10.1161/jaha.117.008077] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/26/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Remote ischemic preconditioning (RIPC) has been suggested to protect against certain forms of organ injury after cardiac surgery. Previously, we reported the main results of RIPHeart (Remote Ischemic Preconditioning for Heart Surgery) Study, a multicenter trial randomizing 1403 cardiac surgery patients receiving either RIPC or sham-RIPC. METHODS AND RESULTS In this follow-up paper, we present 1-year follow-up of the composite primary end point and its individual components (all-cause mortality, myocardial infarction, stroke and acute renal failure), in a sub-group of patients, intraoperative myocardial dysfunction assessed by transesophageal echocardiography and the incidence of postoperative neurocognitive dysfunction 5 to 7 days and 3 months after surgery. RIPC neither showed any beneficial effect on the 1-year composite primary end point (RIPC versus sham-RIPC 16.4% versus 16.9%) and its individual components (all-cause mortality [3.4% versus 2.5%], myocardial infarction [7.0% versus 9.4%], stroke [2.2% versus 3.1%], acute renal failure [7.0% versus 5.7%]) nor improved intraoperative myocardial dysfunction or incidence of postoperative neurocognitive dysfunction 5 to 7 days (67 [47.5%] versus 71 [53.8%] patients) and 3 months after surgery (17 [27.9%] versus 18 [27.7%] patients), respectively. CONCLUSIONS Similar to our main study, RIPC had no effect on intraoperative myocardial dysfunction, neurocognitive function and long-term outcome in cardiac surgery patients undergoing propofol anesthesia. CLINICAL TRIAL REGISTRATION URL: https://www.clinicaltrials.gov. Unique identifier: NCT01067703.
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Affiliation(s)
- Patrick Meybohm
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Madeline Kohlhaas
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Christian Stoppe
- Department of Anesthesiology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Matthias Gruenewald
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Germany
| | - Jochen Renner
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Germany
| | - Berthold Bein
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Germany
- Department of Anesthesiology and Intensive Care Medicine, Asklepios Hospital St. Georg Hamburg, Germany
| | - Martin Albrecht
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Germany
| | - Jochen Cremer
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Germany
| | - Mark Coburn
- Department of Anesthesiology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Gereon Schaelte
- Department of Anesthesiology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Andreas Boening
- Department of Cardiovascular Surgery, University of Giessen, Germany
| | - Bernd Niemann
- Department of Cardiovascular Surgery, University of Giessen, Germany
| | - Michael Sander
- Department of Anesthesiology and Intensive Care, University of Giessen, Germany
- Department of Anesthesiology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - Jan Roesner
- Department of Anesthesiology and Intensive Care, Suedstadt Hospital Rostock, Germany
- Clinic of Anesthesiology and Intensive Care Medicine, University Hospital Rostock, Germany
| | - Frank Kletzin
- Clinic of Anesthesiology and Intensive Care Medicine, University Hospital Rostock, Germany
| | - Haitham Mutlak
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Sabine Westphal
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | | | - Marion Ferner
- Department of Anesthesiology, Medical Center of Johannes Gutenberg-University, Mainz, Germany
| | - Ivo F Brandes
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Goettingen, Germany
| | - Martin Bauer
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Goettingen, Germany
- Department of Anesthesiology and Intensive Care, Klinikum Region Hannover, Germany
| | - Sebastian N Stehr
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Leipzig, Germany
| | - Andreas Kortgen
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Maria Wittmann
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Germany
| | - Georg Baumgarten
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Germany
- Department of Anesthesiology and Intensive Care Medicine, Johanniter Hospital Bonn, Germany
| | - Tanja Meyer-Treschan
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Duesseldorf, Germany
| | - Peter Kienbaum
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Duesseldorf, Germany
| | - Matthias Heringlake
- Department of Anesthesiology and Intensive Care Medicine, University Luebeck, Germany
| | - Julika Schoen
- Department of Anesthesiology and Intensive Care Medicine, University Luebeck, Germany
- Department of Anesthesiology and Intensive Care Medicine, Hospital Neuruppin, Germany
| | - Sascha Treskatsch
- Department of Anesthesiology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - Thorsten Smul
- Department of Anesthesiology, University Hospital Wuerzburg, Germany
| | - Ewa Wolwender
- Department of Anesthesiology, University Hospital Wuerzburg, Germany
| | - Thomas Schilling
- Department of Anesthesiology, University Hospital Magdeburg, Germany
| | - Georg Fuernau
- University Heart Luebeck Medical Clinic II (Cardiology/Angiology/Intensive Care Medicine) University Hospital Schleswig-Holstein, Luebeck, Germany
| | | | | | - Dirk Hasenclever
- Institute for Medical Informatics, Statistics and Epidemiology, University Leipzig, Germany
| | - Kai Zacharowski
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany
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Najafi M, Noroozi E, Javadi A, Badalzadeh R. Anti-arrhythmogenic and anti-inflammatory effects of troxerutin in ischemia/reperfusion injury of diabetic myocardium. Biomed Pharmacother 2018; 102:385-391. [PMID: 29573617 DOI: 10.1016/j.biopha.2018.03.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Medicinal plants are increasingly used in the treatment of cardiovascular diseases due to their multifaceted properties. This study was designed to investigate anti-arrhythmic and anti-inflammatory potentials of the natural bioflavonoid, troxerutin (TXR) in myocardial ischemia/reperfusion (I/R) injury in diabetic rats. METHODS Male Wistar rats were randomly divided into 4 groups (control, control + TXR [150 mg/kg, daily], diabetic, and diabetic + TXR). Type-1 diabetes was induced by an intraperitoneal injection of streptozotocin (50 mg/kg) and lasted for 10 weeks. After mounting on the Langendorff apparatus, isolated hearts in all groups received a normal Krebs-Henseleit solution for 20 min of stabilization period, followed by 30 min of regional ischemia through ligation of the left anterior descending coronary artery, and 60 min of full reperfusion. During the experiment, the electrocardiograms were recorded and the arrhythmias [number, duration and incidence of premature ventricular complexes (PVC), ventricular tachycardia (VT), ventricular fibrillation (VF), and arrhythmia score] during I/R phases were assessed based on the Lambeth Convention. Ischemic left ventricular samples were used to determine the activities of lactate dehydrogenase (LDH), interleukin-1beta (IL-1β), and tumor necrosis factor (TNF-α). RESULTS The arrhythmias induced by I/R were not significantly changed in diabetic group as compared to the control group. However, pretreatment with TXR significantly reduced the number of PVC and duration and incidence of VF in ischemic phase in comparison to the untreated animals (P < 0.05). In addition, the duration, and incidence of most arrhythmias during reperfusion phase were significantly declined by TXR administration in both control and diabetic groups (P < 0.05). Pretreatment of rats with TXR significantly reduced myocardial inflammatory cytokines TNF-α and IL-1β levels after I/R insult in diabetic as well as control hearts (P < 0.05). CONCLUSION Preconditioning with TXR could provide cardioprotection by anti-arrhythmic and anti-inflammatory effects against I/R injury in rat hearts. This effect of TXR can introduce this material as a protective agent in cardiovascular diseases.
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Affiliation(s)
- Moslem Najafi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmacology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Elham Noroozi
- Department of Pharmacology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Aniseh Javadi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Biomedicine Institute, Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Reza Badalzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Biomedicine Institute, Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Abstract
Our previous research demonstrated that tilianin protects the myocardium in a myocardial ischemia reperfusion injury (MIRI) rat model and has prominent pharmacological potential as a cardiovascular drug. Our study aimed to investigate the molecular signaling implicated in the improvement of myocardial survival induced by tilianin, a flavonoid antioxidant. Tilianin (2.5, 5, and 10 mg/kg/d) or saline was orally administered to rats for 14 days. On the 15th day, ischemia was induced by ligating the left anterior descending artery for 45 min, followed by 4 h of reperfusion. The levels of MIRI-induced serum myocardial enzymes and cardiomyocyte apoptosis as well as infarct size were examined to assess the cardioprotective effects. Cardiac tissues were collected for western blot analyses to determine the protein expression of anti-apoptotic signaling molecules. In MIRI-treated rats, our results revealed that pre-administration of high dose-tilianin the reduced release of LDH, MDA, and CK-MB and increased the plasma SOD level, and significantly attenuated the infarct size. Western blot analysis showed that a remarkable rise in expression of Bcl-2 and XIAP, and decline in expression of Bax, Smac/Diablo, HtrA2/Omi, cleaved caspase-3, caspase-7 and caspase-9 was observed in the myocardium. The apoptosis index of cardiomyocytes further supports the cardioprotective effect of tilianin. Additionally, compared with the MIRI model group, pretreatment with high dose-tilianin group upregulated phosphorylated Akt and PI3K. In contrast, using the PI3K inhibitor LY294002 to block Akt activation effectively inhibited the protective effects of tilianin against MIRI. Tilianin pretreatment was beneficial for activating the PI3K/Akt signaling pathway and inhibiting myocardial apoptosis.
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Affiliation(s)
- Cheng Zeng
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
- Xinjiang Institute of Materia Medica, Urumqi, Xinjiang P.R. China
| | - Wen Jiang
- Department of Pharmacy, The Sixth Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Ruifang Zheng
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
- Xinjiang Institute of Materia Medica, Urumqi, Xinjiang P.R. China
| | - Chenghui He
- Xinjiang Institute of Materia Medica, Urumqi, Xinjiang P.R. China
| | - Jianguang Li
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
- * E-mail: (Jianguang Li); (Jianguo Xing)
| | - Jianguo Xing
- Xinjiang Institute of Materia Medica, Urumqi, Xinjiang P.R. China
- * E-mail: (Jianguang Li); (Jianguo Xing)
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Yamaki T, de Haas HJ, Tahara N, Petrov A, Mohar D, Haider N, Zhou J, Tahara A, Takeishi Y, Boersma HH, Scarabelli T, Kini A, Strauss HW, Narula J. Cardioprotection by minocycline in a rabbit model of ischemia/reperfusion injury: Detection of cell death by in vivo 111In-GSAO SPECT. J Nucl Cardiol 2018; 25:94-100. [PMID: 28840574 DOI: 10.1007/s12350-017-1031-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 07/05/2017] [Indexed: 01/29/2023]
Abstract
BACKGROUND Preclinical studies indicate that minocycline protects against myocardial ischemia/reperfusion injury. In these studies, minocycline was administered before ischemia, which can rarely occur in clinical practice. The current study aimed to evaluate cardioprotection by minocycline treatment upon reperfusion. METHODS Rabbits were subjected to myocardial ischemia/reperfusion injury and received either intravenous minocycline (n = 8) or saline (n = 8) upon reperfusion. Cardiac cell death was assessed by in vivo micro-SPECT/CT after injection of Indium-111-labeled 4-(N-(S-glutathionylacetyl)amino) phenylarsonous acid (111In-GSAO). Thereafter, hearts were explanted for ex vivo imaging, γ-counting, and histopathological characterization. RESULTS Myocardial damage was visualized by micro-SPECT/CT imaging. Quantitative GSAO uptake (expressed as percent injected dose per gram, %ID/g) in the area at risk was lower in minocycline-treated animals than that in saline-treated control animals (0.32 ± 0.13% vs 0.48 ± 0.15%, P = 0.04). TUNEL staining confirmed the reduction of cell death in minocycline-treated animals. CONCLUSIONS This study demonstrates cardioprotection by minocycline in a clinically translatable protocol.
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Affiliation(s)
- Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hans J de Haas
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Nobuhiro Tahara
- Department of Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Artiom Petrov
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Dilbahar Mohar
- Division of Cardiology, University of California, Irvine, CA, USA
| | - Nezam Haider
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Jun Zhou
- Division of Cardiology, University of California, Irvine, CA, USA
| | - Atsuko Tahara
- Department of Medicine, Division of Cardio-Vascular Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hendrikus H Boersma
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Tiziano Scarabelli
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Annapoorna Kini
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - H William Strauss
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Jagat Narula
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY, 10029, USA.
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Ilkan Z, Strauss B, Campana C, Akar FG. Optical Action Potential Mapping in Acute Models of Ischemia-Reperfusion Injury: Probing the Arrhythmogenic Role of the Mitochondrial Translocator Protein. Methods Mol Biol 2018; 1816:133-143. [PMID: 29987816 DOI: 10.1007/978-1-4939-8597-5_10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ischemia-reperfusion (I/R) injury causes dynamic changes in electrophysiological properties that promote the incidence of post-ischemic arrhythmias. High-resolution optical action potential mapping allows for a quantitative assessment of the electrophysiological substrate at a cellular resolution within the intact heart, which is critical for elucidation of arrhythmia mechanisms. We and others have found that pharmacological inhibition of the translocator protein (TSPO) is highly effective against postischemic arrhythmias. A major hurdle that has limited the translation of this approach to patients is the fact that available TSPO ligands have several confounding effects, including a potent negative ionotropic property. To circumvent such limitations we developed an in vivo cardiac specific TSPO gene silencing approach as an alternative. Here, we provide the methodological details of our optical action potential mapping studies that were designed to probe the effects of TSPO silencing in hearts from spontaneously hypertensive rats (SHR) that are prone to I/R injury.
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Affiliation(s)
- Zeki Ilkan
- Cardiac Bioelectricity Research Laboratory, Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Benjamin Strauss
- Cardiac Bioelectricity Research Laboratory, Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chiara Campana
- Cardiac Bioelectricity Research Laboratory, Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Fadi G Akar
- Cardiac Bioelectricity Research Laboratory, Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Gho JMIH, van Es R, van Slochteren FJ, Jansen Of Lorkeers SJ, Hauer AJ, van Oorschot JWM, Doevendans PA, Leiner T, Vink A, Asselbergs FW, Chamuleau SAJ. A systematic comparison of cardiovascular magnetic resonance and high resolution histological fibrosis quantification in a chronic porcine infarct model. Int J Cardiovasc Imaging 2017; 33:1797-1807. [PMID: 28616762 PMCID: PMC5682871 DOI: 10.1007/s10554-017-1187-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 06/05/2017] [Indexed: 10/26/2022]
Abstract
The noninvasive reference standard for myocardial fibrosis detection on cardiovascular magnetic resonance imaging (CMR) is late gadolinium enhancement (LGE). Currently there is no consensus on the preferred method for LGE quantification. Moreover myocardial wall thickening (WT) and strain are measures of regional deformation and function. The aim of this research was to systematically compare in vivo CMR parameters, such as LGE, WT and strain, with histological fibrosis quantification. Eight weeks after 90 min ischemia/reperfusion of the LAD artery, 16 pigs underwent in vivo Cine and LGE CMR. Histological sections from transverse heart slices were digitally analysed for fibrosis quantification. Mean fibrosis percentage of analysed sections was related to the different CMR techniques (using segmentation or feature tracking software) for each slice using a linear mixed model analysis. The full width at half maximum (FWHM) technique for quantification of LGE yielded the highest R2 of 60%. Cine derived myocardial WT explained 16-36% of the histological myocardial fibrosis. The peak circumferential and radial strain measured by feature tracking could explain 15 and 10% of the variance of myocardial fibrosis, respectively. The used method to systematically compare CMR image data with digital histological images is novel and feasible. Myocardial WT and strain were only modestly related with the amount of fibrosis. The fully automatic FWHM analysis technique is the preferred method to detect myocardial fibrosis.
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Affiliation(s)
- Johannes M I H Gho
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
| | - René van Es
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands.
| | | | - Sanne J Jansen Of Lorkeers
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Allard J Hauer
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Joep W M van Oorschot
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter A Doevendans
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
| | - Tim Leiner
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Aryan Vink
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Folkert W Asselbergs
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
- Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Utrecht, The Netherlands
- Faculty of Population Health Sciences, Institute of Cardiovascular Science, University College London, London, UK
| | - Steven A J Chamuleau
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Room E03.511, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands
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Zuo H, Li Y, Cui Y, An Y. Cardioprotective effect of Malva sylvestris L. in myocardial ischemic/reprefused rats. Biomed Pharmacother 2017; 95:679-684. [PMID: 28886527 DOI: 10.1016/j.biopha.2017.08.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 08/24/2017] [Accepted: 08/24/2017] [Indexed: 02/04/2023] Open
Abstract
PURPOSE The present investigation evaluated the cardioprotective effect of Malva sylvestris L. (MS) on myocardial ischemic/reperfusion (MI/R) in rats. METHODS All animals were divided into four groups: the sham operated group, ischemia/reperfusion group (MI/R), and the MS (250 and 500mg/kg) treated groups, who received MS 250 and 500mg/kg intragastrically for 15 consecutive days, respectively. At the end of the protocol, concentrations of aspartate transaminase (AST), creatine kinase-MB fraction (CK-MB) and lactate dehydrogenase (LDH) were estimated in serum and the concentrations of other parameters, such as C-reactive protein, macrophage inflammatory protein 1 alpha (MIP-1α), and nitric oxide (NO) were also estimated in the blood. Tissue homogenate concentrations of inflammatory cytokines, such as tumour necrosis factor-α (TNF-α), interlukin-1β (IL-1β), IL-10 and IL-6 as well as oxidative stress parameters, such as lipid peroxidation, catalase, and superoxide dismutase were estimated in MI/R rats. RESULT Significant decreases (p<0.01) in AST, LDH, and CK-MB levels were observed in the MS-treated group compared with those in the MI/R group. C-reactive protein and MIP-1α levels decreased in the MS-treated group compared with those in the MI/R group. Plasma NO level was significantly enhanced in the MS-treated group than in the MI/R group. Moreover, treatment with MS significantly reduced TNF-α, IL-1β, and IL-6 levels and increased IL-10 levels in the MS group compared with the MI/R group. Treatment with MS also attenuated the altered oxidative stress parameters in MI/R rats. CONCLUSION The present results indicate the cardioprotective effects of MS of reducing oxidative stress and the inflammatory response in MI/R rats.
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Affiliation(s)
- Hanheng Zuo
- Cardiovascular Division, The Medical College of Qingdao University, Qingdao, Shandong 266021, China
| | - Yinping Li
- Cardiac Care Unit, The Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, China
| | - Yinghua Cui
- Cardiac Care Unit, The Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, China
| | - Yi An
- Cardiovascular Division, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 222071, China.
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Pryds K, Bøttcher M, Sloth AD, Munk K, Rahbek Schmidt M, Bøtker HE. Influence of preinfarction angina and coronary collateral blood flow on the efficacy of remote ischaemic conditioning in patients with ST segment elevation myocardial infarction: post hoc subgroup analysis of a randomised controlled trial. BMJ Open 2016; 6:e013314. [PMID: 27884851 PMCID: PMC5168541 DOI: 10.1136/bmjopen-2016-013314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVES Remote ischaemic conditioning (RIC) confers cardioprotection in patients with ST segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (pPCI). We investigated whether preinfarction angina and coronary collateral blood flow (CCBF) to the infarct-related artery modify the efficacy of RIC. DESIGN Post hoc subgroup analysis of a randomised controlled trial. PARTICIPANTS A total of 139 patients with STEMI randomised to treatment with pPCI or RIC+pPCI. INTERVENTIONS RIC was performed prior to pPCI as four cycles of 5 min upper arm ischaemia and reperfusion with a blood pressure cuff. PRIMARY OUTCOME MEASURE Myocardial salvage index (MSI) assessed by single-photon emission computerised tomography. We evaluated the efficacy of RIC in subgroups of patients with or without preinfarction angina or CCBF. RESULTS Of 139 patients included in the study, 109 had available data for preinfarction angina status and 54 had preinfarction angina. Among 83 patients with Thrombolysis In Myocardial Infarction flow 0/1 on arrival, 43 had CCBF. Overall, RIC+pPCI increased median MSI compared with pPCI alone (0.75 vs 0.56, p=0.045). Mean MSI did not differ between patients with and without preinfarction angina in either the pPCI alone (0.58 and 0.57; 95% CI -0.17 to 0.19, p=0.94) or the RIC+pPCI group (0.66 and 0.69; 95% CI -0.18 to 0.10, p=0.58). Mean MSI did not differ between patients with and without CCBF in the pPCI alone group (0.51 and 0.55; 95% CI -0.20 to 0.13, p=0.64), but was increased in patients with CCBF versus without CCBF in the RIC+pPCI group (0.75 vs 0.58; 95% CI 0.03 to 0.31, p=0.02; effect modification from CCBF on the effect of RIC on MSI, p=0.06). CONCLUSIONS Preinfarction angina did not modify the efficacy of RIC in patients with STEMI undergoing pPCI. CCBF to the infarct-related artery seems to be of importance for the cardioprotective efficacy of RIC. TRIAL REGISTRATION NUMBER NCT00435266, Post-results.
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Affiliation(s)
- Kasper Pryds
- Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark
- Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Morten Bøttcher
- Department of Internal Medicine, Hospital Unit West, Herning, Denmark
| | - Astrid Drivsholm Sloth
- Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark
- Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Kim Munk
- Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark
| | | | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital Skejby, Aarhus, Denmark
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Reinstadler SJ, Stiermaier T, Eitel C, Saad M, Metzler B, de Waha S, Fuernau G, Desch S, Thiele H, Eitel I. Antecedent hypertension and myocardial injury in patients with reperfused ST-elevation myocardial infarction. J Cardiovasc Magn Reson 2016; 18:80. [PMID: 27832796 PMCID: PMC5105316 DOI: 10.1186/s12968-016-0299-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/27/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Antecedent hypertension is associated with poor outcome in patients with ST-elevation myocardial infarction (STEMI). Whether differences in myocardial salvage, infarct size and microvascular injury contribute to the adverse outcome is unknown. We investigated the association between antecedent hypertension and cardiovascular magnetic resonance (CMR) parameters of myocardial salvage and damage in a multicenter CMR substudy of the AIDA-STEMI trial (Abciximab Intracoronary versus intravenously Drug Application in ST-elevation myocardial infarction). METHODS We analyzed 792 consecutive STEMI patients reperfused within 12 h after symptom onset. Patients underwent CMR imaging for assessment of myocardial salvage, infarct size and microvascular obstruction within 10 days after infarction. Major adverse cardiac events (MACE) were recorded at 12-month follow-up. RESULTS Antecedent hypertension was present in 540 patients (68 %) and was associated with a significantly increased baseline risk profile (advanced age, higher body mass index, higher incidence of diabetes, hypercholesterolemia, previous angioplasty and multivessel disease, p < 0.001 for all). MACE were more frequent in patients with hypertension as compared to patients without hypertension (45 [8 %] vs. 8 [3 %], p < 0.01). Antecedent hypertension remained an independent predictor of MACE after multivariate adjustment (hazard ratio 3.42 [confidence interval 1.45-8.08], p < 0.01). There was, however, no significant difference in the area at risk, infarct size, myocardial salvage index, extent of microvascular obstruction, and left ventricular ejection fraction between the groups (all p > 0.05). CONCLUSION Despite a higher rate of MACE in contemporary reperfused STEMI patients with antecedent hypertension, there was no difference in reperfusion efficacy, infarct size and reperfusion injury as visualized by CMR. TRIAL REGISTRATION NCT00712101 .
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Affiliation(s)
- Sebastian J. Reinstadler
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- University Clinic of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Thomas Stiermaier
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Charlotte Eitel
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Mohammed Saad
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Bernhard Metzler
- University Clinic of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Suzanne de Waha
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Georg Fuernau
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Steffen Desch
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Holger Thiele
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Ingo Eitel
- University Heart Center Lübeck, Medical Clinic II, Department of Cardiology, Angiology and Intensive Care Medicine, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
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Glower D. Getting to the heart of the matter. J Thorac Cardiovasc Surg 2014; 149:884-5. [PMID: 25528139 DOI: 10.1016/j.jtcvs.2014.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/15/2014] [Indexed: 11/18/2022]
Affiliation(s)
- Donald Glower
- Department of Surgery, Duke University Medical Center, Durham, NC.
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Saboural P, Chaubet F, Rouzet F, Al-Shoukr F, Ben Azzouna R, Bouchemal N, Picton L, Louedec L, Maire M, Rolland L, Potier G, Le Guludec D, Letourneur D, Chauvierre C. Purification of a low molecular weight fucoidan for SPECT molecular imaging of myocardial infarction. Mar Drugs 2014; 12:4851-67. [PMID: 25251032 PMCID: PMC4178488 DOI: 10.3390/md12094851] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/05/2014] [Accepted: 09/09/2014] [Indexed: 12/19/2022] Open
Abstract
Fucoidans constitute a large family of sulfated polysaccharides with several biochemical properties. A commercial fucoidan from brown algae, containing low molecular weight polysaccharidic species constituted of l-fucose, uronic acids and sulfate groups, was simply treated here with calcium acetate solution. This treatment led to a purified fraction with a yield of 45%. The physicochemical characterizations of the purified fucoidan using colorimetric assay, MALLS, dRI, FT-IR, NMR, exhibited molecular weight distributions and chemical profiles similar for both fucoidans whereas the sulfate and l-fucose contents increased by 16% and 71%, respectively. The biodistribution study in rat of both compounds labeled with 99mTc evidenced a predominant renal elimination of the purified fucoidan, but the crude fucoidan was mainly retained in liver and spleen. In rat myocardial ischemia-reperfusion, we then demonstrated the better efficiency of the purified fucoidan. This purified sulfated polysaccharide appears promising for the development of molecular imaging in acute coronary syndrome.
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Affiliation(s)
- Pierre Saboural
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
| | - Frédéric Chaubet
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
| | - Francois Rouzet
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Multimodal Imaging Research Federation (FRIM), Paris Diderot University, F-75877, Paris, France
- Nuclear Medicine Department, Bichat-Claude Bernard Hospital, AP-HP, F-75877, Paris, France
| | - Faisal Al-Shoukr
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Multimodal Imaging Research Federation (FRIM), Paris Diderot University, F-75877, Paris, France
- Nuclear Medicine Department, Bichat-Claude Bernard Hospital, AP-HP, F-75877, Paris, France
| | - Rana Ben Azzouna
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
- Multimodal Imaging Research Federation (FRIM), Paris Diderot University, F-75877, Paris, France
- Nuclear Medicine Department, Bichat-Claude Bernard Hospital, AP-HP, F-75877, Paris, France
| | - Nadia Bouchemal
- Laboratory CSPBAT, Paris 13 University, Sorbonne Paris Cité, CNRS UMR 7244, SBMB team, F-93017, Bobigny, France; E-Mail:
| | - Luc Picton
- Laboratory of Polymers Biopolymers Surfaces, Normandie University, Rouen University, F-76821, Mont Saint Aignan, France; E-Mail:
- Laboratory of Polymers Biopolymers Surfaces, CNRS, UMR 6270 and FR3038, F-76821, Mont Saint Aignan, France
| | - Liliane Louedec
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
| | - Murielle Maire
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
| | - Lydia Rolland
- Algues & Mer, Kernigou, F-29242, Ouessant, France; E-Mails: (L.R.); (G.P.)
| | - Guy Potier
- Algues & Mer, Kernigou, F-29242, Ouessant, France; E-Mails: (L.R.); (G.P.)
| | - Dominique Le Guludec
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Multimodal Imaging Research Federation (FRIM), Paris Diderot University, F-75877, Paris, France
- Nuclear Medicine Department, Bichat-Claude Bernard Hospital, AP-HP, F-75877, Paris, France
| | - Didier Letourneur
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
| | - Cédric Chauvierre
- Inserm, U1148, LVTS, Paris Diderot University, Bichat-Claude Bernard Hospital, F-75877, Paris, France; E-Mails: (P.S.); (F.C.); (F.R.); (F.A.-S.); (R.B.A.); (L.L.); (M.M.); (D.L.G.); (D.L.)
- Galilée Institute, Paris 13 University, Sorbonne Paris Cité, F-93430, Villetaneuse, France
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +33-1-4025-7538; Fax: +33-1-4025-8602
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Wang ZJ, Hu WK, Liu YY, Shi DM, Cheng WJ, Guo YH, Yang Q, Zhao YX, Zhou YJ. The effect of intravenous vitamin C infusion on periprocedural myocardial injury for patients undergoing elective percutaneous coronary intervention. Can J Cardiol 2014; 30:96-101. [PMID: 24365194 DOI: 10.1016/j.cjca.2013.08.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 08/09/2013] [Accepted: 08/09/2013] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND This small study has determined the effect of vitamin C on myocardial reperfusion in patients undergoing elective percutaneous coronary intervention (PCI). This study was to explore whether antioxidant vitamin C infusion before the procedure is able to affect the incidence of periprocedural myocardial injury (PMI) in patients undergoing PCI. METHODS In this prospective single-centre randomized study, 532 patients were randomized into 2 groups: the vitamin C group, which received a 3-g vitamin C infusion within 6 hours before PCI, and a control group, which received normal saline. The primary end point was the troponin I-defined PMI, and the second end point was the creatine kinase (CK)-MB-defined PMI. Separate analyses using both end points were performed. PMI was defined as an elevation of cardiac biomarker values (CK-MB or troponin I) > 5 times the upper limit of normal (ULN), alone or associated with chest pain or ST-segment or T-wave changes. RESULTS After PCI, the incidence of PMI was reduced, whether defined by troponin or by CK-MB, compared with the control group (troponin I, 10.9% vs 18.4%; P = 0.016; CK-MB, 4.2% vs 8.6%; P = 0.035). Logistic multivariate analysis showed that preprocedure use of vitamin C is an independent predictor of PMI either defined by troponin I (odds ratio [OR], 0.56; 95% confidence interval [CI], 0.33-0.97; P = 0.037) or by CK-MB (OR, 0.37; 95% CI, 0.14-0.99; P = 0.048). CONCLUSIONS In patients undergoing elective PCI, preprocedure intravenous treatment with vitamin C is associated with less myocardial injury.
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Affiliation(s)
- Zhi Jian Wang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wen Kun Hu
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yu Yang Liu
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Dong Mei Shi
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wan Jun Cheng
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yong He Guo
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qing Yang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ying Xin Zhao
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Yu Jie Zhou
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
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Pong T, Scherrer-Crosbie M, Atochin DN, Bloch KD, Huang PL. Phosphomimetic modulation of eNOS improves myocardial reperfusion and mimics cardiac postconditioning in mice. PLoS One 2014; 9:e85946. [PMID: 24465805 PMCID: PMC3897570 DOI: 10.1371/journal.pone.0085946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 12/04/2013] [Indexed: 12/16/2022] Open
Abstract
Objective Myocardial infarction resulting from ischemia-reperfusion injury can be reduced by cardiac postconditioning, in which blood flow is restored intermittently prior to full reperfusion. Although key molecular mechanisms and prosurvival pathways involved in postconditioning have been identified, a direct role for eNOS-derived NO in improving regional myocardial perfusion has not been shown. The objective of this study is to measure, with high temporal and spatial resolution, regional myocardial perfusion during ischemia-reperfusion and postconditioning, in order to determine the contribution of regional blood flow effects of NO to infarct size and protection. Methods and Results We used myocardial contrast echocardiography to measure regional myocardial blood flow in mice over time. Reperfusion after myocardial ischemia-reperfusion injury is improved by postconditioning, as well as by phosphomimetic eNOS modulation. Knock-in mice expressing a phosphomimetic S1176D form of eNOS showed improved myocardial reperfusion and significantly reduced infarct size. eNOS knock-out mice failed to show cardioprotection from postconditioning. The size of the no-reflow zone following ischemia-reperfusion is substantially reduced by postconditioning and by the phosphomimetic eNOS mutation. Conclusions and Significance Using myocardial contrast echocardiography, we show that temporal dynamics of regional myocardial perfusion restoration contribute to reduced infarct size after postconditioning. eNOS has direct effects on myocardial blood flow following ischemia-reperfusion, with reduction in the size of the no-reflow zone. These results have important implications for ongoing clinical trials on cardioprotection, because the degree of protective benefit may be significantly influenced by the regional hemodynamic effects of eNOS-derived NO.
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Affiliation(s)
- Terrence Pong
- Cardiovascular Research Center, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, Massachusetts, United States of America
| | - Marielle Scherrer-Crosbie
- Cardiovascular Research Center, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Cardiac Ultrasound Laboratory, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Dmitriy N. Atochin
- Cardiovascular Research Center, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Kenneth D. Bloch
- Cardiovascular Research Center, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Anesthesia Center for Critical Care Research, Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Paul L. Huang
- Cardiovascular Research Center, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, Massachusetts, United States of America
- * E-mail:
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Teng X, Bian Y, Cai Y, Duan X, Yuan F, Du J, Wu W, Wang X, Tang C, Qi Y. Downregulation of endogenous intermedin augmented myocardial injury in rats with ischemia/reperfusion. Horm Metab Res 2013; 45:206-12. [PMID: 23018870 DOI: 10.1055/s-0032-1327572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Intermedin (IMD) plays an important regulatory role in cardiovascular function. We aimed to explore the protein expression of IMD and its receptors, calcitonin receptor-like receptor (CRLR) and receptor activity-modifying proteins (RAMPs), and the role of endogenous IMD in myocardial ischemia/reperfusion (I/R) injury in rats. The rat model of I/R was created by ligating cardiac left anterior descending artery. Western blot was used to determine protein expression of CRLR and RAMPs, and radioimmunoassay was used to detect IMD content. Compared with control, protein levels of CRLR and RAMPs in both ischemic and nonischemic region were upregulated at different stages of reperfusion. IMD protein content in nonischemic area myocardium also increased. However, IMD protein content in ischemic area downregulated at 3-, 6-, and 12-h reperfusion. In hypoxia/reoxygenation model of neonatal cardiomyocytes, IMD attenuated myocyte injury, and IMD receptor antagonist IMD17-47 aggravated myocyte impairment by blocking endogenous IMD. In conclusion, the downregulation of IMD at early stage of reperfusion might augment myocardium injury.
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Affiliation(s)
- X Teng
- The Key Laboratory of Remodeling-related Cardiovascular Diseases, Capital Medical University, Ministry of Education, Beijing, China
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Kakinuma Y, Tsuda M, Okazaki K, Akiyama T, Arikawa M, Noguchi T, Sato T. Heart-specific overexpression of choline acetyltransferase gene protects murine heart against ischemia through hypoxia-inducible factor-1α-related defense mechanisms. J Am Heart Assoc 2013; 2:e004887. [PMID: 23525439 PMCID: PMC3603257 DOI: 10.1161/jaha.112.004887] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Background Murine and human ventricular cardiomyocytes rich in acetylcholine (Ach) receptors are poorly innervated by the vagus, compared with whole ventricular innervation by the adrenergic nerve. However, vagal nerve stimulation produces a favorable outcome even in the murine heart, despite relatively low ventricular cholinergic nerve density. Such a mismatch and missing link suggest the existence of a nonneuronal cholinergic system in ventricular myocardium. Methods and Results To examine the role of the nonneuronal cardiac cholinergic system, we generated choline acetyltransferase (ChAT)–expressing cells and heart‐specific ChAT transgenic (ChAT‐tg) mice. Compared with cardiomyocytes of wild‐type (WT) mice, those of the ChAT‐tg mice had high levels of ACh and hypoxia‐inducible factor (HIF)‐1α protein and augmented glucose uptake. These phenotypes were also reproduced by ChAT‐overexpressing cells, which utilized oxygen less. Before myocardial infarction (MI), the WT and ChAT‐tg mice showed similar hemodynamics; after MI, however, the ChAT‐tg mice had better survival than did the WT mice. In the ChAT‐tg hearts, accelerated angiogenesis at the ischemic area, and accentuated glucose utilization prevented post‐MI remodeling. The ChAT‐tg heart was more resistant to ischemia–reperfusion injury than was the WT heart. Conclusions These results suggest that the activated cardiac ACh‐HIF‐1α cascade improves survival after MI. We conclude that de novo synthesis of ACh in cardiomyocytes is a pivotal mechanism for self‐defense against ischemia.
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Affiliation(s)
- Yoshihiko Kakinuma
- Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan.
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Abstract
BACKGROUND Coagulation disorders and reperfusion of ischemic myocardium are major causes of morbidity and mortality. Lectin pathway initiation complexes are composed of multimolecular carbohydrate recognition subcomponents and 3 lectin pathway-specific serine proteases. We have recently shown that the lectin pathway-specific carbohydrate recognition subcomponent mannose-binding lectin plays an essential role in the pathophysiology of thrombosis and ischemia/reperfusion injury. Thus, we hypothesized that the endogenous mannose-binding lectin (MBL)/ficolin-associated protein-1 (MAP-1) that inhibits complement activation in vitro also could be an in vivo regulator by attenuating myocardial schema/reperfusion injury and thrombogenesis when used at pharmacological doses in wild-type mice. METHODS AND RESULTS In 2 mouse models, MAP-1 preserves cardiac function, decreases infarct size, decreases C3 deposition, inhibits MBL deposition, and prevents thrombogenesis. Furthermore, we demonstrate that MAP-1 displaces MBL/ficolin-associated serine protease (MASP)-1, MASP-2, and MASP-3 from the MBL complex. CONCLUSIONS Our results suggest that the natural, endogenous inhibitor MAP-1 effectively inhibits lectin pathway activation in vivo. MAP-1 at pharmacological doses represents a novel therapeutic approach for human diseases involving the lectin pathway and its associated MASPs.
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Affiliation(s)
- Vasile I Pavlov
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston MA 02115, USA
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Sun D, Huang J, Zhang Z, Gao H, Li J, Shen M, Cao F, Wang H. Luteolin limits infarct size and improves cardiac function after myocardium ischemia/reperfusion injury in diabetic rats. PLoS One 2012; 7:e33491. [PMID: 22432030 PMCID: PMC3303839 DOI: 10.1371/journal.pone.0033491] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 02/15/2012] [Indexed: 01/06/2023] Open
Abstract
Background The present study was to investigate the effects and mechanism of Luteolin on myocardial infarct size, cardiac function and cardiomyocyte apoptosis in diabetic rats with myocardial ischemia/reperfusion (I/R) injury. Methodology/Principal Findings Diabetic rats underwent 30 minutes of ischemia followed by 3 h of reperfusion. Animals were pretreated with or without Luteolin before coronary artery ligation. The severity of myocardial I/R induced LDH release, arrhythmia, infarct size, cardiac function impairment, cardiomyocyte apoptosis were compared. Western blot analysis was performed to elucidate the target proteins of Luteolin. The inflammatory cytokine production were also examined in ischemic myocardium underwent I/R injury. Our results revealed that Luteolin administration significantly reduced LDH release, decreased the incidence of arrhythmia, attenuated myocardial infarct size, enhanced left ventricular ejection fraction and decreased myocardial apoptotic death compared with I/R group. Western blot analysis showed that Luteolin treatment up-regulated anti-apoptotic proteins FGFR2 and LIF expression, increased BAD phosphorylation while decreased the ratio of Bax to Bcl-2. Luteolin treatment also inhibited MPO expression and inflammatory cytokine production including IL-6, IL-1a and TNF-a. Moreover, co-administration of wortmannin and Luteolin abolished the beneficial effects of Luteolin. Conclusions/Significance This study indicates that Luteolin preserves cardiac function, reduces infarct size and cardiomyocyte apoptotic rate after I/R injury in diabetic rats. Luteolin exerts its action by up-regulating of anti-apoptotic proteins FGFR2 and LIF expression, activating PI3K/Akt pathway while increasing BAD phosphorylation and decreasing ratio of Bax to Bcl-2.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Arrhythmias, Cardiac/complications
- Arrhythmias, Cardiac/pathology
- Arrhythmias, Cardiac/physiopathology
- Arrhythmias, Cardiac/prevention & control
- Cell Movement/drug effects
- Cytokines/metabolism
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/diagnostic imaging
- Diabetes Mellitus, Experimental/physiopathology
- Heart Function Tests/drug effects
- L-Lactate Dehydrogenase/metabolism
- Leukocytes/drug effects
- Leukocytes/pathology
- Luteolin/pharmacology
- Luteolin/therapeutic use
- Male
- Myocardial Infarction/diagnostic imaging
- Myocardial Infarction/drug therapy
- Myocardial Infarction/pathology
- Myocardial Infarction/physiopathology
- Myocardial Reperfusion Injury/complications
- Myocardial Reperfusion Injury/diagnostic imaging
- Myocardial Reperfusion Injury/drug therapy
- Myocardial Reperfusion Injury/physiopathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Rats
- Rats, Sprague-Dawley
- Ultrasonography
- Ventricular Function, Left/drug effects
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Affiliation(s)
- Dongdong Sun
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
- * E-mail: (DS); (HW)
| | | | | | | | | | | | | | - Haichang Wang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
- * E-mail: (DS); (HW)
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Ge ZD, Ionova IA, Vladic N, Pravdic D, Hirata N, Vásquez-Vivar J, Pratt PF, Warltier DC, Pieper GM, Kersten JR. Cardiac-specific overexpression of GTP cyclohydrolase 1 restores ischaemic preconditioning during hyperglycaemia. Cardiovasc Res 2011; 91:340-9. [PMID: 21422102 PMCID: PMC3125073 DOI: 10.1093/cvr/cvr079] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Revised: 03/07/2011] [Accepted: 03/16/2011] [Indexed: 02/07/2023] Open
Abstract
AIMS Hyperglycaemia (HG) decreases intracellular tetrahydrobiopterin (BH(4)) concentrations, and this action may contribute to injury during myocardial ischaemia and reperfusion. We investigated whether increased BH(4) by cardiomyocyte-specific overexpression of the GTP cyclohydrolase (GTPCH) 1 gene rescues myocardial and mitochondrial protection by ischaemic preconditioning (IPC) during HG through a nitric oxide (NO)-dependent pathway. METHODS AND RESULTS Mice underwent 30 min of myocardial ischaemia followed by 2 h of reperfusion with or without IPC elicited with four cycles of 5 min ischaemia/5 min of reperfusion in the presence or absence of HG produced by d-glucose. In C57BL/6 wild-type mice, IPC increased myocardial BH(4) and NO concentrations and decreased myocardial infarct size (30 ± 3% of risk area) compared with control (56 ± 5%) experiments. This protective effect was inhibited by HG (48 ± 3%) but not hyperosmolarity. GTPCH-1 overexpression increased myocardial BH(4) and NO concentrations and restored cardioprotection by IPC during HG (32 ± 4%). In contrast, a non-selective NO synthase inhibitor N(G)-nitro-l-arginine methyl ester attenuated the favourable effects of GTPCH-1 overexpression (52 ± 3%) during HG. Mitochondria isolated from myocardium subjected to IPC required significantly higher in vitro Ca(2+) concentrations (184 ± 14 µmol mg(-1) protein) to open the mitochondrial permeability transition pore when compared with mitochondria isolated from control experiments (142 ± 10 µmol mg(-1) protein). This beneficial effect of IPC was reversed by HG and rescued by GTPCH-1 overexpression. CONCLUSION Increased BH(4) by cardiomyocyte-specific overexpression of GTPCH-1 preserves the ability of IPC to elicit myocardial and mitochondrial protection that is impaired by HG, and this action appears to be dependent on NO.
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Affiliation(s)
- Zhi-Dong Ge
- Department of Anesthesiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.
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FANG LL, ZHANG PY, WANG C, MA XW, SHI HW, WANG LM, FENG XH. [Evaluation of viable myocardium by two-dimensional strain imaging combined with adenosine stress echocardiography in dogs underwent experimental ischemia/reperfusion injury]. Zhonghua Xin Xue Guan Bing Za Zhi 2010; 38:829-833. [PMID: 21092654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE to explore the feasibility of evaluating viable myocardium with two-dimensional strain imaging combined with adenosine stress echocardiography. METHODS acute myocardial infarction and reperfusion model was made by ligating anterior descending coronary artery for 90 minutes followed by 120-minute reperfusion in 15 healthy mongrel dogs. Images were acquired at baseline and after reperfusion. Adenosine was then infused and image acquisition repeated. Regional peak-systolic strain in radial, circumferential and longitudinal motion on anterior wall and anterior septum were measured. TTC staining served as a "gold standard" to define viable and nonviable myocardium. The ratio of infarct area (S(N)) to total area (S) was calculated and viable myocardium was defined with S(N)/S ≤ 50%. RESULTS at baseline, RS(peak sys), CS(peak sys) and LS(peak sys) were similar between viable (n = 37) and nonviable myocardial segments (n = 53) and significantly decreased after reperfusion in both viable and nonviable myocardial segments. Compared with values obtained after reperfusion, LS(peak sys) and RS(peak sys) remained unchanged in nonviable myocardial segments and significantly increased in viable myocardial segments after adenosine (P < 0.05). Post adenosine RS(peak sys) was negatively correlated with S(N)/S and CS(peak sys) and LS(peak sys) were positively correlated with S(N)/S. With ΔRS(peak-sys) (before and after adenosine) ≥ 13.5%, the sensitivity was 83.8% and specificity was 83.0% for distinguishing viable from nonviable myocardial segment. With ΔLS(peak sys) ≥ 11% as cutoff value, the sensitivity was 78.4% and specificity was 88.7% for distinguishing viable from nonviable myocardial segment. Combining ΔRS(peak sys) and ΔLS(peak sys), the sensitivity and specificity for distinguishing viable from nonviable myocardial segment were 91.9% and 79.2%, respectively. CONCLUSIONS two-dimensional strain imaging combined with adenosine stress echocardiography could quantitatively identify viable and nonviable myocardium.
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Affiliation(s)
- Ling-ling FANG
- Department of Cardiovascular Ultrasound, Anesthesiology and Cardiothoracic Surgery, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
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Dimastromatteo J, Riou LM, Ahmadi M, Pons G, Pellegrini E, Broisat A, Sancey L, Gavrilina T, Boturyn D, Dumy P, Fagret D, Ghezzi C. In vivo molecular imaging of myocardial angiogenesis using the alpha(v)beta3 integrin-targeted tracer 99mTc-RAFT-RGD. J Nucl Cardiol 2010; 17:435-43. [PMID: 20087797 DOI: 10.1007/s12350-010-9191-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 12/25/2009] [Indexed: 01/19/2023]
Abstract
BACKGROUND Myocardial angiogenesis following reperfusion of an infarcted area may impact on patient prognosis and pro-angiogenic treatments are currently evaluated. The non-invasive imaging of angiogenesis would therefore be of potential clinical relevance in these settings. (99m)Tc-RAFT-RGD is a novel (99m)Tc-labeled tracer that targets the alpha(v)beta(3) integrin. Our objective was to determine whether this tracer was suitable for myocardial angiogenesis imaging. METHODS AND RESULTS A rat model of reperfused myocardial infarction was employed. Fourteen days following reperfusion, the animals were injected with (99m)Tc-RAFT-RGD or with its negative control (99m)Tc-RAFT-RAD. Fourteen animals were dedicated to autoradiographic imaging, infarct staining, and gamma-well counting of myocardial activity. In vivo dual-isotope pinhole SPECT imaging of (201)Tl and (99m)Tc-RAFT-RGD or (99m)Tc-RAFT-RAD was also performed in 11 additional animals. Neovessels were observed by immunostaining in the infarcted and peri-infarct areas. (99m)Tc-RAFT-RGD infarct-to-normal ratios by gamma-well counting and ex vivo imaging (2.5 +/- 0.6 and 4.9 +/- 0.9, respectively) were significantly higher than those of (99m)Tc-RAFT-RAD (1.7 +/- 0.2 and 2.2 +/- 0.4, respectively, P < .05). The infarcted area was readily visible in vivo by SPECT with (99m)Tc-RAFT-RGD but not with (99m)Tc-RAFT-RAD (infarct-to-normal zone activity ratio, 2.5 +/- 0.6 and 1.7 +/- 0.4, respectively, P < .05). CONCLUSION (99m)Tc-RAFT-RGD allowed the experimental in vivo molecular imaging of myocardial angiogenesis.
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Affiliation(s)
- Julien Dimastromatteo
- INSERM U877, Radiopharmaceutiques Biocliniques, Faculté de Médecine de Grenoble, 38700 La Tronche, Grenoble, France
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Bailey SR. Microvascular obstruction after reperfusion therapy for acute myocardial infarctions, an "open and shut case". Catheter Cardiovasc Interv 2009; 74:1008-9. [PMID: 19953517 DOI: 10.1002/ccd.22342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ji LJ, Yang L, Yan Y, Wu JF, Li JH, Hu GQ, Bin JP. [Evaluation of myocardial ischemia-reperfusion injury in mouse by molecular imaging of P-selectin with targeted contrast echocardiography]. Zhonghua Yi Xue Za Zhi 2009; 89:1698-1701. [PMID: 19957530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To assess the feasibility of evaluating myocardial ischemia-reperfusion injury in mouse with targeted myocardial contrast echocardiography (MCE). METHODS Phospholipid microbubbles targeted to P-selectin (MBp) and control microbubbles (MBc) were created by conjugating monoclonal antibody against murine P-selectin or isotype control antibody with the lipid shell via "avidin-biotin" bridging. Ten mice with myocardial ischemia-reperfusion were injected intravenously of MBp and MBc in a random order with a 30 min interval. After 5 min of intravenous injection of microbubble, targeted MCE imaging was performed in all mice. And then the video intensity (VI) was determined. RESULTS A significant ultrasonic enhancement was observed in ischemic region of MBp-group. Increment in VI value of ischemic region in MBp-group was great and it amounted to (26.0 +/- 6.2) U. However, increment in VI value of ischemic region in MBc-group was minor and it was merely (9.1 +/- 0.9) U. Difference was evident in ischemic region between of two groups (P < 0.05). In both MBp-group and MBc-group, the VI value of ischemic region was significantly greater than that of non-ischemic region (6.5 +/- 1.0) U vs (6.4 +/- 0.8) U (P < 0.05). There was no obvious difference in the VI of non-ischemic region between two groups. CONCLUSION Molecular imaging of P-selectin with targeted contrast echocardiography can effectively evaluate myocardial ischemia-reperfusion injury.
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Affiliation(s)
- Li-Jing Ji
- Cardiovascular Division, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Prunier F, Kawase Y, Gianni D, Scapin C, Danik SB, Ellinor PT, Hajjar RJ, Del Monte F. Prevention of ventricular arrhythmias with sarcoplasmic reticulum Ca2+ ATPase pump overexpression in a porcine model of ischemia reperfusion. Circulation 2008; 118:614-24. [PMID: 18645052 DOI: 10.1161/circulationaha.108.770883] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Ventricular arrhythmias are life-threatening complications of heart failure and myocardial ischemia. Increased diastolic Ca2+ overload occurring in ischemia leads to afterdepolarizations and aftercontractions that are responsible for cellular electric instability. We inquired whether sarcoplasmic reticulum Ca2+ ATPase pump (SERCA2a) overexpression could reduce ischemic ventricular arrhythmias by modulating Ca2+ overload. METHODS AND RESULTS SERCA2a overexpression in pig hearts was achieved by intracoronary gene delivery of adenovirus in the 3 main coronary arteries. Homogeneous distribution of the gene was obtained through the left ventricle. After gene delivery, the left anterior descending coronary artery was occluded for 30 minutes to induce myocardial ischemia followed by reperfusion. We compared this model with a model of permanent coronary artery occlusion. Twenty-four-hour ECG Holter recordings showed that SERCA2a overexpression significantly reduced the number of episodes of ventricular tachycardia after reperfusion, whereas no significant difference was found in the occurrence of sustained or nonsustained ventricular tachycardia and ventricular fibrillation in pigs undergoing permanent occlusion. CONCLUSIONS We show that Ca2+ cycling modulation using SERCA2a overexpression reduces ventricular arrhythmias after ischemia-reperfusion. Strategies that modulate postischemic Ca2+ overload may have clinical promise for the treatment of ventricular arrhythmias.
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Affiliation(s)
- Fabrice Prunier
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA.
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Du GQ, Tian JW, Guo YH, Ren M, Jiang SQ, Wang Y. [Quantitative evaluation of myocardial perfusion and regional systolic function by myocardial contrast stress echocardiography with computer-assisted technique in ischemic myocardium of rabbits]. Zhonghua Xin Xue Guan Bing Za Zhi 2008; 36:360-364. [PMID: 19100018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To evaluate the feasibility and value of determining myocardial perfusion and regional systolic function by myocardial contrast stress echocardiography (MCSE) with computer-assisted technique in a rabbit model of ischemia/reperfusion injury. METHODS Rabbits underwent 30-(Group I, n = 15) and 120-(Group II, n = 15) minute left ventricular branch of the left circumflex coronary artery occlusion foll owed by 60-minute reperfusion, dobutamine at increasing doses (5, 10, 15 and 20 microg.kg(-1).min(-1)) was then infused after reperfusion for 15 min. Bolus myocardial contrast agent was injected and MCSE performed at baseline, at the end of coronary occlusion and reperfusion, at the end of each dobutamine infusion. Images were analyzed by computer-assisted technique and myocardial calibrated contrast intensity (CI) of each segment was measured and a color-coded map was then obtained automatically (yellow: from 0 to -20 pix, blue:from -21 to -40 pix, green: from -41 to -70 pix, red: < -70 pix). The area at risk and infarct area obtained by red-coded map were compared with ex vivo results determined by fluorescent microsphere and triphenyl-tetrazolium chloride (TTC) staining. Percentage wall thickening (WT) of each risk segment at each stage were also measured. RESULTS (1) During occlusion, WT in the areas at risk decreased to zero or negative and the calibrated CI values were significantly lower than those at baseline. Area at risk obtained by red-coded map correlated well with that obtained by fluorescent staining (r = 0.91, P < 0.01). (2) After reperfusion and 5 microg.kg(-1).min(-1) dobutamine administration, WT and calibrated CI in all rabbits remained depressed. Calibrated CI at -70 pix was an optimal cutoff point to identify infarcted segments (sensitivity 95%, specificity 87%). The correlation between the infarct size by red-coded image and TTC was 0.89 (P < 0.01). (3) Calibrated CI and WT significantly improved in Group I rabbits while these parameters remained unchanged in Group II rabbits after increasing doses of dobutamine post ischemia. CONCLUSIONS Myocardial contrast stress echocardiography in combination with computer-assisted analysis technique are valuable techniques to quantitatively assess myocardial perfusion and regional systolic function and exactly identify stunned myocardium and infarcted myocardium.
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Affiliation(s)
- Guo-qing Du
- Department of Ultrasound, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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Heper G, Korkmaz ME, Kilic A. Reperfusion arrhythmias: are they only a marker of epicardial reperfusion or continuing myocardial ischemia after acute myocardial infarction? Angiology 2007; 58:663-70. [PMID: 17989422 DOI: 10.1177/0003319707308891] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Reperfusion arrhythmias are associated with epicardial reperfusion but may also be a sign of vascular reperfusion injury which can be seen as no-reflow phenomenon on coronary angiography and predicts in-hospital complications and recovery of left ventricular (LV) function. No-reflow phenomenon (thrombolysis in myocardial infarction [TIMI] <or=2 flow) is frequently observed in patients after mechanical or medical reperfusion procedures for acute myocardial infarction (AMI). The authors hypothesized that reperfusion arrhythmias (or peri-infarct arrhythmias) may be related to continuing myocardial ischemia. They documented all arrhythmia episodes in patients with AMI and compared arrhythmia rates in different therapy groups. They also compared arrhythmia rates according to TIMI flow achieved and those after MI. The highest arrhythmia rate was detected in patients to whom thrombolytic therapy was given for AMI (64%). The arrhythmia rate was lower in patients with primary PCI performed for AMI (46.2%) than in those receiving thrombolytic therapy. The arrhythmia rates according to therapy modalities for AMI were significantly different (p < 0.01). The achieved mean TIMI flow with primary PCI (2.46 +/-0.21 ) was higher than the mean flow achieved after thrombolytic therapy (2.12 +/-0.16). When compared to the arrhythmia rate according to TIMI flow, it was shown that the lowest arrhythmia rate was found in patients with TIMI 3 flow (17.2%) achieved with any procedure after AMI. The arrhythmia rate was 84% in patients with TIMI 2 flow and 33.3% with TIMI 0-1 flow (p <0.001). The arrhythmia rate was appreciably lower after 48 hours of MI. This finding suggests that the continuing myocardial ischemia represented by TIMI flow at the coronary angiography after acute myocardial infarction may have an important role in the pathogenesis of reperfusion arrhythmias.
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