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Berkowicz P, Totoń-Żurańska J, Kwiatkowski G, Jasztal A, Csípő T, Kus K, Tyrankiewicz U, Orzyłowska A, Wołkow P, Tóth A, Chlopicki S. Accelerated ageing and coronary microvascular dysfunction in chronic heart failure in Tgαq*44 mice. GeroScience 2023; 45:1619-1648. [PMID: 36692592 PMCID: PMC10400753 DOI: 10.1007/s11357-022-00716-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/12/2022] [Indexed: 01/25/2023] Open
Abstract
Age represents a major risk factor in heart failure (HF). However, the mechanisms linking ageing and HF are not clear. We aimed to identify the functional, morphological and transcriptomic changes that could be attributed to cardiac ageing in a model of slowly progressing HF in Tgαq*44 mice in reference to the cardiac ageing process in FVB mice. In FVB mice, ageing resulted in the impairment of diastolic cardiac function and in basal coronary flow (CF), perivascular and interstitial fibrosis without changes in the cardiac activity of angiotensin-converting enzyme (ACE) or aldosterone plasma concentration. In Tgαq*44 mice, HF progression was featured by the impairment of systolic and diastolic cardiac function and in basal CF that was associated with a distinct rearrangement of the capillary architecture, pronounced perivascular and interstitial fibrosis, progressive activation of cardiac ACE and systemic angiotensin-aldosterone-dependent pathways. Interestingly, cardiac ageing genes and processes were represented in Tgαq*44 mice not only in late but also in early phases of HF, as evidenced by cardiac transcriptome analysis. Thirty-four genes and 8 biological processes, identified as being ageing related, occurred early and persisted along HF progression in Tgαq*44 mice and were mostly associated with extracellular matrix remodelling and fibrosis compatible with perivascular fibrosis resulting in coronary microvascular dysfunction (CMD) in Tgαq*44 mice. In conclusion, accelerated and persistent cardiac ageing contributes to the pathophysiology of chronic HF in Tgαq*44 mice. In particular, prominent perivascular fibrosis of microcirculation resulting in CMD represents an accelerated cardiac ageing phenotype that requires targeted treatment in chronic HF.
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Affiliation(s)
- Piotr Berkowicz
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Justyna Totoń-Żurańska
- Centre for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
| | - Grzegorz Kwiatkowski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Agnieszka Jasztal
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Tamás Csípő
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Department of Public Health, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Kamil Kus
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Urszula Tyrankiewicz
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Anna Orzyłowska
- Department of Neurosurgery and Paediatric Neurosurgery, Medical University of Lublin, Lublin, Poland
| | - Paweł Wołkow
- Centre for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
| | - Attila Tóth
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland.
- Faculty of Medicine, Chair of Pharmacology, Jagiellonian University Medical College, Krakow, Poland.
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Hou J, Yuan Y, Chen P, Lu K, Tang Z, Liu Q, Xu W, Zheng D, Xiong S, Pei H. Pathological Roles of Oxidative Stress in Cardiac Microvascular Injury. Curr Probl Cardiol 2022; 48:101399. [PMID: 36103941 DOI: 10.1016/j.cpcardiol.2022.101399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 01/06/2023]
Abstract
Cardiac microvascular injury can be a fundamental pathological process that causes high incidence cardiovascular diseases such heart failure, diabetic cardiomyopathy, and hypertension. It is also an independent risk factor for cardiovascular disease. Oxidative stress is a significant pathological process in which the body interferes with the balance of the endogenous antioxidant defense system by producing reactive oxygen species, leading to property changes and dysfunction. It has been demonstrated that oxidative stress is one of the major causes of cardiac microvascular disease. Therefore, additional investigation into the relationship between oxidative stress and cardiac microvascular injury will direct clinical management in the future. In order to give suggestions and support for future in-depth studies, we give a basic overview of the cardiac microvasculature in relation to physiopathology in this review. We also summarize the role of oxidative stress of mitochondrial and non-mitochondrial origin in cardiac microvascular injury and related drug studies.
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Affiliation(s)
- Jun Hou
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Yuan Yuan
- Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Peiwen Chen
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Keji Lu
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Zhaobing Tang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Qing Liu
- Department of medical engineering, The 950th Hospital of PLA, Yecheng 844900, China
| | - Wu Xu
- Department of Urology, The Fifth Afliated Hospital of Southern Medical University, Guangzhou 510900, China
| | - Dezhi Zheng
- Department of Cardiovascular Surgery, the 960th Hospital of the PLA Joint Logistic Support Force, Jinan 250031, China
| | - Shiqiang Xiong
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Haifeng Pei
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China.
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Chen J, Strauss B, Liang L, Hajjar RJ. Animal model of left atrial thrombus in congestive heart failure in rats. Am J Physiol Heart Circ Physiol 2019; 317:H63-H72. [PMID: 31074653 PMCID: PMC6692738 DOI: 10.1152/ajpheart.00086.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/03/2019] [Accepted: 05/03/2019] [Indexed: 12/16/2022]
Abstract
The aim of the present study was to develop and study a new model of left atrial thrombus (LAT) in rat with congestive heart failure (CHF). CHF was induced by aortic banding for 2 mo, followed by ischemia-reperfusion (I/R) and subsequent aortic debanding for 1 mo. Cardiac function and the presence of LAT were assessed by echocardiography. Masson's staining was performed for histological analysis. All CHF rats presented with significantly decreased cardiac function, fibrosis in remote myocardium, and pulmonary edema. The incidence rate of LAT was 18.8% in the rats. LAT was associated with severity of aortic constriction, aortic pressure gradient, aortic blood flow velocity, and pulmonary edema but not myocardial infarction or a degree of left ventricular depression. The progressive process of thrombogenesis was characterized by myocyte hypertrophy, fibrosis, and inflammation in the left atrial wall. Fibrin adhesion and clot formation were observed, whereas most LAT presented as a relatively hard "mass," likely attributable to significant fibrosis in the middle and outer layers. Some LAT mass showed focal necrosis as well as fibrin bulging. Most LAT occurred at the upper anterior wall of the left atrial appendage. Aortic debanding had no significant impact on large LATs (>5 mm2) that had formed, whereas small LATs (<5 mm2) regressed 1 mo after aortic release. LAT is found in a rat model of aortic banding plus I/R followed by aortic debanding. The model provides a platform to study molecular mechanisms and potential new pathways for LAT treatment. NEW & NOTEWORTHY It is critically important to have a rodent model to study the molecular mechanism of thrombogenesis in the left atrium. Left atrial thrombus (LAT) is not a simple fibrin clot like those seen in peripheral veins or arteries. Rather, LAT is a cellular mass that likely develops in conjunction with blood clotting. Studying this phenomenon will help us understand congestive heart failure and promote new therapies for LAT.
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Affiliation(s)
- Jiqiu Chen
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai , New York, New York
| | - Benjamin Strauss
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai , New York, New York
| | - Lifan Liang
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai , New York, New York
| | - Roger J Hajjar
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai , New York, New York
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