1
|
Calcagno C, David JA, Motaal AG, Coolen BF, Beldman T, Corbin A, Kak A, Ramachandran S, Pruzan A, Sridhar A, Soler R, Faries CM, Fayad ZA, Mulder WJM, Strijkers GJ. Self-gated, dynamic contrast-enhanced magnetic resonance imaging with compressed-sensing reconstruction for evaluating endothelial permeability in the aortic root of atherosclerotic mice. NMR IN BIOMEDICINE 2023; 36:e4823. [PMID: 36031706 PMCID: PMC10078106 DOI: 10.1002/nbm.4823] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/01/2022] [Accepted: 08/21/2022] [Indexed: 05/16/2023]
Abstract
High-risk atherosclerotic plaques are characterized by active inflammation and abundant leaky microvessels. We present a self-gated, dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) acquisition with compressed sensing reconstruction and apply it to assess longitudinal changes in endothelial permeability in the aortic root of Apoe-/- atherosclerotic mice during natural disease progression. Twenty-four, 8-week-old, female Apoe-/- mice were divided into four groups (n = 6 each) and imaged with self-gated DCE-MRI at 4, 8, 12, and 16 weeks after high-fat diet initiation, and then euthanized for CD68 immunohistochemistry for macrophages. Eight additional mice were kept on a high-fat diet and imaged longitudinally at the same time points. Aortic-root pseudo-concentration curves were analyzed using a validated piecewise linear model. Contrast agent wash-in and washout slopes (b1 and b2 ) were measured as surrogates of aortic root endothelial permeability and compared with macrophage density by immunohistochemistry. b2 , indicating contrast agent washout, was significantly higher in mice kept on an high-fat diet for longer periods of time (p = 0.03). Group comparison revealed significant differences between mice on a high-fat diet for 4 versus 16 weeks (p = 0.03). Macrophage density also significantly increased with diet duration (p = 0.009). Spearman correlation between b2 from DCE-MRI and macrophage density indicated a weak relationship between the two parameters (r = 0.28, p = 0.20). Validated piecewise linear modeling of the DCE-MRI data showed that the aortic root contrast agent washout rate is significantly different during disease progression. Further development of this technique from a single-slice to a 3D acquisition may enable better investigation of the relationship between in vivo imaging of endothelial permeability and atherosclerotic plaques' genetic, molecular, and cellular makeup in this important model of disease.
Collapse
Affiliation(s)
- Claudia Calcagno
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - John A David
- Amsterdam University Medical Centers, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Abdallah G Motaal
- Siemens Healthineers, Cardiovascular Care Group, Advanced Therapies Business, Erlangen, Germany
| | - Bram F Coolen
- Amsterdam University Medical Centers, Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Thijs Beldman
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexandra Corbin
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Arnav Kak
- University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sarayu Ramachandran
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Alison Pruzan
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Arthi Sridhar
- Department of Hematology/Oncology, UTHealth McGovern Medical School, Houston, TX, USA
| | - Raphael Soler
- CNRS, CRMBM, Marseille, France
- Department of Vascular and Endovascular Surgery, Hôpital Universitaire de la Timone, APHM, Marseille, France
| | - Christopher M Faries
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Zahi A Fayad
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Willem J M Mulder
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, USA
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gustav J Strijkers
- Biomedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, USA
- Amsterdam University Medical Centers, Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
2
|
Ericsson M, Steneberg P, Nyrén R, Edlund H. AMPK activator O304 improves metabolic and cardiac function, and exercise capacity in aged mice. Commun Biol 2021; 4:1306. [PMID: 34795407 PMCID: PMC8602430 DOI: 10.1038/s42003-021-02837-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022] Open
Abstract
Age is associated with progressively impaired, metabolic, cardiac and vascular function, as well as reduced work/exercise capacity, mobility, and hence quality of life. Exercise exhibit positive effects on age-related dysfunctions and diseases. However, for a variety of reasons many aged individuals are unable to engage in regular physical activity, making the development of pharmacological treatments that mimics the beneficial effects of exercise highly desirable. Here we show that the pan-AMPK activator O304, which is well tolerated in humans, prevented and reverted age-associated hyperinsulinemia and insulin resistance, and improved cardiac function and exercise capacity in aged mice. These results provide preclinical evidence that O304 mimics the beneficial effects of exercise. Thus, as an exercise mimetic in clinical development, AMPK activator O304 holds great potential to mitigate metabolic dysfunction, and to improve cardiac function and exercise capacity, and hence quality of life in aged individuals.
Collapse
Affiliation(s)
- Madelene Ericsson
- grid.12650.300000 0001 1034 3451Umeå Centre for Molecular Medicine Umeå University, SE-901 87 Umeå, Sweden
| | - Pär Steneberg
- grid.12650.300000 0001 1034 3451Umeå Centre for Molecular Medicine Umeå University, SE-901 87 Umeå, Sweden
| | - Rakel Nyrén
- grid.12650.300000 0001 1034 3451Department of Medical Biosciences, Pathology Umeå University, SE-901 87 Umeå, Sweden
| | - Helena Edlund
- Umeå Centre for Molecular Medicine Umeå University, SE-901 87, Umeå, Sweden.
| |
Collapse
|
3
|
Maurya MR, Riyaz NUSS, Reddy MSB, Yalcin HC, Ouakad HM, Bahadur I, Al-Maadeed S, Sadasivuni KK. A review of smart sensors coupled with Internet of Things and Artificial Intelligence approach for heart failure monitoring. Med Biol Eng Comput 2021; 59:2185-2203. [PMID: 34611787 DOI: 10.1007/s11517-021-02447-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023]
Abstract
Over the last decade, there has been a huge demand for health care technologies such as sensors-based prediction using digital health. With the continuous rise in the human population, these technologies showed to be potentially effective solutions to life-threatening diseases such as heart failure (HF). Besides being a potential for early death, HF has a significantly reduced quality of life (QoL). Heart failure has no cure. However, treatment can help you live a longer and more active life with fewer symptoms. Thus, it is essential to develop technological aid solutions allowing early diagnosis and consequently, effective treatment with possibly delayed mortality. Commonly, forecasts of HF are based on the generation of vast volumes of data usually collected from an individual patient by different components of the family history, physical examination, basic laboratory results, and other medical records. Though, these data are not effectively useful for predicting this failure, nevertheless, with the aid of advanced medical technology such as interconnected multi-sensory-based devices, and based on several medical history characteristics, the broad data provided machine learning algorithms to predict risk factors for heart disease of an individual is beneficial. There will be many challenges for the next decade of advancements in HF care: exploiting an increasingly growing repertoire of interconnected internal and external sensors for the benefit of patients and processing large, multimodal datasets with new Artificial Intelligence (AI) software. Various methods for predicting heart failure and, primarily the significance of invasive and non-invasive sensors along with different strategies for machine learning to predict heart failure are presented and summarized in the present study.
Collapse
Affiliation(s)
- Muni Raj Maurya
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
- Department of Mechanical and Industrial Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | | | - M Sai Bhargava Reddy
- Center for Nanoscience and Technology, Institute of Science and Technology, Jawaharlal Nehru Technological University, Hyderabad, Telangana State, 500085, India
| | | | - Hassen M Ouakad
- Mechanical and Industrial Engineering Department, College of Engineering, Sultan Qaboos University, Al-Khoudh, 123, PO-BOX 33, Muscat, Oman.
| | - Issam Bahadur
- Mechanical and Industrial Engineering Department, College of Engineering, Sultan Qaboos University, Al-Khoudh, 123, PO-BOX 33, Muscat, Oman
| | - Somaya Al-Maadeed
- Department of Computer Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | | |
Collapse
|
4
|
Hess A, Nekolla SG, Meier M, Bengel FM, Thackeray JT. Accuracy of cardiac functional parameters measured from gated radionuclide myocardial perfusion imaging in mice. J Nucl Cardiol 2020; 27:1317-1327. [PMID: 31044402 DOI: 10.1007/s12350-019-01713-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/26/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Quantitative cardiac contractile function assessment is the primary indicator of disease progression and therapeutic efficacy in small animals. Operator dependency is a major challenge with commonly used echocardiography. Simultaneous assessment of cardiac perfusion and function in nuclear scans would reduce burden on the animal and facilitate longitudinal studies. We evaluated the accuracy of contractile function measurements obtained from electrocardiogram-gated nuclear perfusion imaging compared with anatomic imaging. METHODS AND RESULTS In healthy C57Bl/6N mice (n = 11), 99mTc-sestamibi SPECT and 13N-ammonia PET underestimated left ventricular volumes (23 to 28%, P = 0.02) compared to matched anatomic images, though ejection fraction (LVEF) was comparable (%, SPECT: 73 ± 8 vs CMR: 72 ± 6, P = 0.1). At 1 week after myocardial infarction (n = 13), LV volumes were significantly lower in perfusion images compared to CMR and contrast CT (P = 0.003), and LVEF was modestly overestimated (%, SPECT: 37 ± 8, vs CMR: 27 ± 7, P = 0.003). Nuclear images exhibited good intra- and inter-reader agreement. Perfusion SPECT accurately calculated infarct size compared to histology (r = 0.95, P < 0.001). CONCLUSIONS Cardiac function can be calculated by gated nuclear perfusion imaging in healthy mice. After infarction, perfusion imaging overestimates LVEF, which should be considered for comparison to other modalities. Combined functional and infarct size analysis may optimize imaging protocols and reduce anaesthesia duration for longitudinal studies.
Collapse
Affiliation(s)
- Annika Hess
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Stephan G Nekolla
- Department of Nuclear Medicine, Technical University of Munich, Munich, Germany
| | - Martin Meier
- Imaging Center of the Institute of Laboratory Animal Sciences, Hannover Medical School, Hannover, Germany
| | - Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - James T Thackeray
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
| |
Collapse
|
5
|
Russo I, Micotti E, Fumagalli F, Magnoli M, Ristagno G, Latini R, Staszewsky L. A novel echocardiographic method closely agrees with cardiac magnetic resonance in the assessment of left ventricular function in infarcted mice. Sci Rep 2019; 9:3580. [PMID: 30837662 PMCID: PMC6400943 DOI: 10.1038/s41598-019-40393-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/13/2019] [Indexed: 12/19/2022] Open
Abstract
Cardiac Magnetic Resonance (CMR) is the gold standard for left ventricular (LV) function assessment in small rodents and, though echocardiography (ECHO) has been proposed as an alternative method, LV volumes may be underestimated when marked eccentric remodeling is present. In the present study we described a novel echocardiographic method and we tested the agreement with CMR for LV volumes and ejection fraction calculation in mice with experimental myocardial infarction. Sham-operated and infarcted mice, subjected to Coronary Artery Ligation, underwent ECHO and CMR. Volumes and ejection fraction were calculated by ECHO using a standard Simpson’s modified method (ECHO pLAX) or a method from sequential parasternal short axis (ECHO pSAX) acquired mechanically by translating the probe every 1 mm along the left ventricle. The mean differences ±1.96 standard deviation near to zero suggested close agreement between ECHO pSAX and CMR; contrarily ECHO pLAX agreement with CMR was lower. In addition, ECHO was three times shorter and cheaper (Relative cost difference: pLAX: −66% and pSAX −57%) than CMR. In conclusion, ECHO pSAX is a new, fast, cheap and accurate method for LV function assessment in mice.
Collapse
Affiliation(s)
- Ilaria Russo
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy.
| | - Edoardo Micotti
- Department of Neuroscience, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Francesca Fumagalli
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Michela Magnoli
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Giuseppe Ristagno
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Roberto Latini
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Lidia Staszewsky
- Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| |
Collapse
|
6
|
Grune J, Blumrich A, Brix S, Jeuthe S, Drescher C, Grune T, Foryst-Ludwig A, Messroghli D, Kuebler WM, Ott C, Kintscher U. Evaluation of a commercial multi-dimensional echocardiography technique for ventricular volumetry in small animals. Cardiovasc Ultrasound 2018; 16:10. [PMID: 29966517 PMCID: PMC6029342 DOI: 10.1186/s12947-018-0128-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 06/13/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The assessment of ventricular volumes using conventional echocardiography methods is limited with regards to the need of geometrical assumptions. In the present study, we aimed to evaluate a novel commercial system for three-dimensional echocardiography (3DE) in preclinical models by direct comparison with conventional 1D- and 2D-echocardiography (1DE; 2DE) and the gold-standard technique magnetic resonance imaging (MRI). Further, we provide a standard operating protocol for image acquisition and analysis with 3DE. METHODS 3DE was carried out using a 30 MHz center frequency transducer coupled to a Vevo®3100 Imaging System. We evaluated under different experimental conditions: 1) in vitro phantom measurements served as controlled setting in which boundaries were clearly delineated; 2) a validation cohort composed of healthy C57BL/6 J mice and New Zealand Obese (NZO) mice was used in order to validate 3DE against cardiac MRI; 3) a standard mouse model of pressure overload induced-heart failure was investigated to estimate the value of 3DE. RESULTS First, in vitro volumetry revealed good agreement between 3DE assessed volumes and the MRI-assessed volumes. Second, cardiac volume determination with 3DE showed smaller mean differences compared to cardiac MRI than conventional 1DE and 2DE. Third, 3DE was suitable to detect reduced ejection fractions in heart failure mice. Fourth, inter- and intra-observer variability of 3DE showed good to excellent agreement regarding absolute volumes in healthy mice, whereas agreement rates for the relative metrics ejection fraction and stroke volume demonstrated good to moderate observer variabilities. CONCLUSIONS 3DE provides a novel method for accurate volumetry in small animals without the need for spatial assumptions, demonstrating a technique for an improved analysis of ventricular function. Further validation work and highly standardized image analyses are required to increase reproducibility of this approach.
Collapse
Affiliation(s)
- Jana Grune
- Institute of Pharmacology, Center for Cardiovascular Research, Charité -Universitaetsmedizin Berlin, Hessische Str. 3-4, 10115, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Institute of Physiology, Charité University Medicine Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Annelie Blumrich
- Institute of Pharmacology, Center for Cardiovascular Research, Charité -Universitaetsmedizin Berlin, Hessische Str. 3-4, 10115, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
| | - Sarah Brix
- Institute of Pharmacology, Center for Cardiovascular Research, Charité -Universitaetsmedizin Berlin, Hessische Str. 3-4, 10115, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
| | - Sarah Jeuthe
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Cardiology, Charité University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Cathleen Drescher
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Germany
| | - Tilman Grune
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Germany
- German Center for Diabetes Research (DZD), 85764, Muenchen-Neuherberg, Germany
| | - Anna Foryst-Ludwig
- Institute of Pharmacology, Center for Cardiovascular Research, Charité -Universitaetsmedizin Berlin, Hessische Str. 3-4, 10115, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
| | - Daniel Messroghli
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Cardiology, Charité University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Wolfgang M Kuebler
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Institute of Physiology, Charité University Medicine Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Christiane Ott
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Germany
| | - Ulrich Kintscher
- Institute of Pharmacology, Center for Cardiovascular Research, Charité -Universitaetsmedizin Berlin, Hessische Str. 3-4, 10115, Berlin, Germany.
- German Center for Cardiovascular Research (DZHK), partner site Berlin, 10117, Berlin, Germany.
| |
Collapse
|
7
|
Lindsey ML, Kassiri Z, Virag JAI, de Castro Brás LE, Scherrer-Crosbie M. Guidelines for measuring cardiac physiology in mice. Am J Physiol Heart Circ Physiol 2018; 314:H733-H752. [PMID: 29351456 PMCID: PMC5966769 DOI: 10.1152/ajpheart.00339.2017] [Citation(s) in RCA: 226] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cardiovascular disease is a leading cause of death, and translational research is needed to understand better mechanisms whereby the left ventricle responds to injury. Mouse models of heart disease have provided valuable insights into mechanisms that occur during cardiac aging and in response to a variety of pathologies. The assessment of cardiovascular physiological responses to injury or insult is an important and necessary component of this research. With increasing consideration for rigor and reproducibility, the goal of this guidelines review is to provide best-practice information regarding how to measure accurately cardiac physiology in animal models. In this article, we define guidelines for the measurement of cardiac physiology in mice, as the most commonly used animal model in cardiovascular research. Listen to this article’s corresponding podcast at http://ajpheart.podbean.com/e/guidelines-for-measuring-cardiac-physiology-in-mice/.
Collapse
Affiliation(s)
- Merry L Lindsey
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center , Jackson, Mississippi.,Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center , Jackson, Mississippi
| | - Zamaneh Kassiri
- Department of Physiology, Cardiovascular Research Centre, Mazankowski Alberta Heart Institute, University of Alberta , Edmonton, Alberta , Canada
| | - Jitka A I Virag
- Department of Physiology, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Lisandra E de Castro Brás
- Department of Physiology, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | | |
Collapse
|
8
|
Lottonen-Raikaslehto L, Rissanen R, Gurzeler E, Merentie M, Huusko J, Schneider JE, Liimatainen T, Ylä-Herttuala S. Left ventricular remodeling leads to heart failure in mice with cardiac-specific overexpression of VEGF-B 167: echocardiography and magnetic resonance imaging study. Physiol Rep 2017; 5:5/6/e13096. [PMID: 28351964 PMCID: PMC5371547 DOI: 10.14814/phy2.13096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 10/07/2016] [Accepted: 11/20/2016] [Indexed: 01/24/2023] Open
Abstract
Cardiac-specific overexpression of vascular endothelial growth factor (VEGF)-B167 is known to induce left ventricular hypertrophy due to altered lipid metabolism, in which ceramides accumulate to the heart and cause mitochondrial damage. The aim of this study was to evaluate and compare different imaging methods to find the most sensitive way to diagnose at early stage the progressive left ventricular remodeling leading to heart failure. Echocardiography and cardiovascular magnetic resonance imaging were compared for imaging the hearts of transgenic mice with cardiac-specific overexpression of VEGF-B167 and wild-type mice from 5 to 14 months of age at several time points. Disease progression was verified by molecular biology methods and histology. We showed that left ventricular remodeling is already ongoing at the age of 5 months in transgenic mice leading to heart failure by the age of 14 months. Measurements from echocardiography and cardiovascular magnetic resonance imaging revealed similar changes in cardiac structure and function in the transgenic mice. Changes in histology, gene expressions, and electrocardiography supported the progression of left ventricular hypertrophy. Longitudinal relaxation time in rotating frame (T1ρ ) in cardiovascular magnetic resonance imaging could be suitable for detecting severe fibrosis in the heart. We conclude that cardiac-specific overexpression of VEGF-B167 leads to left ventricular remodeling at early age and is a suitable model to study heart failure development with different imaging methods.
Collapse
Affiliation(s)
- Line Lottonen-Raikaslehto
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Riina Rissanen
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Erika Gurzeler
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Mari Merentie
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jenni Huusko
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jurgen E Schneider
- Radcliffe Department of Medicine, Division of Cardiovascular Medicine, University of Oxford, United kingdom
| | - Timo Liimatainen
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland.,Clinical Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Seppo Ylä-Herttuala
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland .,Gene Therapy Unit, Kuopio University Hospital, Kuopio, Finland.,Heart Center, Kuopio University Hospital, Kuopio, Finland
| |
Collapse
|
9
|
Skrzypiec-Spring M, Haczkiewicz K, Sapa A, Piasecki T, Kwiatkowska J, Ceremuga I, Wozniak M, Biczysko W, Kobierzycki C, Dziegiel P, Podhorska-Okolow M, Szelag A. Carvedilol Inhibits Matrix Metalloproteinase-2 Activation in Experimental Autoimmune Myocarditis: Possibilities of Cardioprotective Application. J Cardiovasc Pharmacol Ther 2017; 23:89-97. [PMID: 28854816 DOI: 10.1177/1074248417725058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Acute myocarditis is a potentially lethal inflammatory heart disease that frequently precedes the development of dilated cardiomyopathy and subsequent heart failure. At present, there is no effective standardized therapy for acute myocarditis, besides the optimal care of heart failure and arrhythmias in accordance with evidence-based guidelines and specific etiology-driven therapy for infectious myocarditis. Carvedilol has been shown to be cardioprotective by reducing cardiac pro-inflammatory cytokines present in oxidative stress in certain heart diseases. However, effects of carvedilol administration in acute myocarditis with its impact on matrix metalloproteinases' (MMPs) activation have not been elucidated. METHODS AND RESULTS Carvedilol in 3 doses (2, 10, and 30 mg/kg) was given daily to 3 study groups of rats (n = 8) with experimental autoimmune myocarditis by gastric gavage for 3 weeks. In comparison to untreated rats (n = 8) with induced myocarditis, carvedilol significantly prevented the left ventricle enlargement and/or systolic dysfunction depending on the dose in study groups. Performed zymography showed enhanced MMP-2 activity in untreated rats, while carvedilol administration reduced alterations. This was accompanied by prevention of troponin I release and myofilaments degradation in cardiac muscle tissue. Additionally, severe inflammatory cell infiltration was detected in the nontreated group. Carvedilol in all doses tested, had no impact on severity of inflammation. The severity of inflammation did not differ between study groups and in relation to the untreated group. CONCLUSIONS The protective effects of carvedilol on heart function observed in the acute phase of experimental autoimmune myocarditis seem to be associated with its ability to decrease MMP-2 activity and subsequently prevent degradation of myofilaments and release of troponin I while not related to suppression of inflammation.
Collapse
Affiliation(s)
| | - Katarzyna Haczkiewicz
- 2 Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland
| | - Agnieszka Sapa
- 3 Department of Medical Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
| | - Tomasz Piasecki
- 4 Department of Epizootiology and Clinic of Bird and Exotic Animals, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Joanna Kwiatkowska
- 1 Department of Pharmacology, Wroclaw Medical University, Wroclaw, Poland
| | - Ireneusz Ceremuga
- 5 Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Mieczyslaw Wozniak
- 3 Department of Medical Laboratory Diagnostics, Wroclaw Medical University, Wroclaw, Poland
| | - Wieslawa Biczysko
- 6 Department of Clinical Pathomorphology, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Piotr Dziegiel
- 2 Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland.,7 Department of Physiotherapy, University School of Physical Education, Wroclaw, Poland
| | | | - Adam Szelag
- 1 Department of Pharmacology, Wroclaw Medical University, Wroclaw, Poland
| |
Collapse
|
10
|
Assessment of Longitudinal Reproducibility of Mice LV Function Parameters at 11.7 T Derived from Self-Gated CINE MRI. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8392952. [PMID: 28321415 PMCID: PMC5340939 DOI: 10.1155/2017/8392952] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 02/01/2017] [Accepted: 02/05/2017] [Indexed: 11/17/2022]
Abstract
The objective of this work was the assessment of the reproducibility of self-gated cardiac MRI in mice at ultra-high-field strength. A group of adult mice (n = 5) was followed over 360 days with a standardized MR protocol including reproducible animal position and standardized planning of the scan planes. From the resulting CINE MRI data, global left ventricular (LV) function parameters including end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), ejection fraction (EF), and left ventricular mass (LVM) were quantified. The reproducibility of the self-gated technique as well as the intragroup variability and longitudinal changes of the investigated parameters was assessed. Self-gated cardiac MRI proved excellent reproducibility of the global LV function parameters, which was in the order of the intragroup variability. Longitudinal assessment did not reveal any significant variations for EDV, ESV, SV, and EF but an expected increase of the LVM with increasing age. In summary, self-gated MRI in combination with a standardized protocol for animal positioning and scan plane planning ensures reproducible assessment of global LV function parameters.
Collapse
|
11
|
Vanhoutte L, Gerber BL, Gallez B, Po C, Magat J, Balligand JL, Feron O, Moniotte S. High field magnetic resonance imaging of rodents in cardiovascular research. Basic Res Cardiol 2016; 111:46. [PMID: 27287250 DOI: 10.1007/s00395-016-0565-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 06/01/2016] [Indexed: 02/07/2023]
Abstract
Transgenic and gene knockout rodent models are primordial to study pathophysiological processes in cardiovascular research. Over time, cardiac MRI has become a gold standard for in vivo evaluation of such models. Technical advances have led to the development of magnets with increasingly high field strength, allowing specific investigation of cardiac anatomy, global and regional function, viability, perfusion or vascular parameters. The aim of this report is to provide a review of the various sequences and techniques available to image mice on 7-11.7 T magnets and relevant to the clinical setting in humans. Specific technical aspects due to the rise of the magnetic field are also discussed.
Collapse
Affiliation(s)
- Laetitia Vanhoutte
- Department of Paediatric Cardiology, Cliniques universitaires Saint Luc, Université Catholique de Louvain (UCL), Brussels, Belgium. .,Pole of Pharmacology and Therapeutics (FATH), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCL), Brussels, Belgium.
| | - Bernhard L Gerber
- Division of Cardiology, Cliniques universitaires Saint Luc, Université Catholique de Louvain (UCL), Brussels, Belgium.,Pole of Cardiovascular Research (CARD), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCL), Brussels, Belgium
| | - Bernard Gallez
- Biomedical Magnetic Resonance Unit (REMA), Louvain Drug Research Institute (LDRI), Université Catholique de Louvain (UCL), Brussels, Belgium
| | - Chrystelle Po
- CNRS, ICube, FMTS, Institut de Physique Biologique, Faculté de Médecine, Université de Strasbourg, Strasbourg, France
| | - Julie Magat
- L'Institut de RYthmologie et de Modélisation Cardiaque (LIRYC), Inserm U1045, Bordeaux, France
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCL), Brussels, Belgium
| | - Olivier Feron
- Pole of Pharmacology and Therapeutics (FATH), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCL), Brussels, Belgium
| | - Stéphane Moniotte
- Department of Paediatric Cardiology, Cliniques universitaires Saint Luc, Université Catholique de Louvain (UCL), Brussels, Belgium
| |
Collapse
|
12
|
Hellström M, Ericsson M, Johansson B, Faraz M, Anderson F, Henriksson R, Nilsson SK, Hedman H. Cardiac hypertrophy and decreased high-density lipoprotein cholesterol in Lrig3-deficient mice. Am J Physiol Regul Integr Comp Physiol 2016; 310:R1045-52. [PMID: 27009049 DOI: 10.1152/ajpregu.00309.2015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 03/21/2016] [Indexed: 11/22/2022]
Abstract
Genetic factors confer risk for cardiovascular disease. Recently, large genome-wide population studies have shown associations between genomic loci close to LRIG3 and heart failure and plasma high-density lipoprotein (HDL) cholesterol level. Here, we ablated Lrig3 in mice and investigated the importance of Lrig3 for heart function and plasma lipid levels. Quantitative reverse transcription-polymerase chain reaction (RT-PCR) was used to analyze Lrig3 expression in the hearts of wild-type and Lrig3-deficient mice. In addition, molecular, physiological, and functional parameters such as organ weights, heart rate, blood pressure, heart structure and function, gene expression in the heart, and plasma insulin, glucose, and lipid levels were evaluated. The Lrig3-deficient mice were smaller than the wild-type mice but otherwise appeared grossly normal. Lrig3 was expressed at detectable but relatively low levels in adult mouse hearts. At 9 mo of age, ad libitum-fed Lrig3-deficient mice had lower insulin levels than wild-type mice. At 12 mo of age, Lrig3-deficient mice exhibited increased blood pressure, and the Lrig3-deficient female mice displayed signs of cardiac hypertrophy as assessed by echocardiography, heart-to-body weight ratio, and expression of the cardiac hypertrophy marker gene Nppa. Additionally, Lrig3-deficient mice had reduced plasma HDL cholesterol and free glycerol. These findings in mice complement the human epidemiological results and suggest that Lrig3 may influence heart function and plasma lipid levels in mice and humans.
Collapse
Affiliation(s)
- Martin Hellström
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden;
| | - Madelene Ericsson
- Department of Medical Biosciences, Physiological Chemistry, Umeå University, Umeå, Sweden
| | - Bengt Johansson
- Department of Public Health and Clinical Medicine, Medicine, Umeå University, Umeå, Sweden; and
| | - Mahmood Faraz
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | - Fredrick Anderson
- Department of Medical Biosciences, Physiological Chemistry, Umeå University, Umeå, Sweden
| | - Roger Henriksson
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden; Regional Cancer Center Stockholm/Gotland, Stockholm, Sweden
| | - Stefan K Nilsson
- Department of Medical Biosciences, Physiological Chemistry, Umeå University, Umeå, Sweden
| | - Håkan Hedman
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| |
Collapse
|
13
|
Variability of Mouse Left Ventricular Function Assessment by 11.7 Tesla MRI. J Cardiovasc Transl Res 2015; 8:362-71. [PMID: 26070905 DOI: 10.1007/s12265-015-9638-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/02/2015] [Indexed: 10/23/2022]
Abstract
We studied intraobserver (n = 24), interobserver (n = 24) and interexperiment (n = 12) reproducibility of left ventricular (LV) mass and volume measurements in mice using an 11.7 T MRI system. The LV systolic function was assessed with a short-axis FLASH-cine sequence in 29 mice, including animals having undergone transverse aortic constriction. Bland-Altman and regression analysis were used to compare the different data sets. Reproducibility was excellent for the LV mass and end-diastolic volume (coefficient of variability (CoV) between 5.4 and 11.8 %), good for end-systolic volume (CoV 15.2-19.4 %) and moderate for stroke volume and ejection fraction (CoV 14.7-20.9 %). We found an excellent correlation between LV mass determined by MRI and ex vivo morphometric data (r = 0.92). In conclusion, LV systolic function can be assessed on an 11.7 T MRI scanner with high reproducibility for most parameters, as needed in longitudinal studies. However, data should be interpreted taking into account the moderate reproducibility of small volumes.
Collapse
|
14
|
High throughput phenotyping of left and right ventricular cardiomyopathy in calcineurin transgene mice. Int J Cardiovasc Imaging 2015; 31:669-79. [PMID: 25627778 DOI: 10.1007/s10554-015-0596-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/16/2015] [Indexed: 01/06/2023]
Abstract
Consistent protocols for the assessment of diastolic and systolic cardiac function to assure the comparability of existing data on preclinical models are missing. Calcineurin transgene (CN) mice are a preclinical model for hypertrophic and failing hearts. We aimed at evaluating left and right ventricular structural and functional remodeling in CN hearts with an optimized phenotyping protocol. We developed a protocol using techniques and indices comparable to those from human diagnostics for comprehensive in vivo cardiac screening using high-frequency echocardiography, Doppler, electrocardiography and cardiac magnetic resonance (CMR) techniques. We measured left and right ventricular dimensions and function, pulmonary and mitral flow pattern and the hearts electrophysiology non-invasively in <1 h per mouse. We found severe biventricular dilation and a drastic decline in performance in accordance with a condition of heart failure (HF), diastolic dysfunction and defects in electrical conduction in 8-week-old calcineurin transgenic mice. Echocardiography of the left ventricle was performed with and without anesthesia. In all cases absolute values on echocardiography compared with CMR were smaller for LV dimension and wall thickness, resulting in higher fractional shorting and ejection fraction. The study protocol described here opens opportunities to assess the added value of combined echocardiography, Doppler, CMR and ECG recording techniques for the diagnosis of biventricular cardiac pathologies i.e. of HF and to study symptom occurrence and disease progression non-invasively in high-throughput. Phenotyping CN hearts revealed new symptom occurrence and allowed insights into the diverse phenotype of hypertrophic failing hearts.
Collapse
|
15
|
Ma L, Gul R, Habibi J, Yang M, Pulakat L, Whaley-Connell A, Ferrario CM, Sowers JR. Nebivolol improves diastolic dysfunction and myocardial remodeling through reductions in oxidative stress in the transgenic (mRen2) rat. Am J Physiol Heart Circ Physiol 2012; 302:H2341-51. [PMID: 22447938 DOI: 10.1152/ajpheart.01126.2011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Angiotensin II contributes to myocardial tissue remodeling and interstitial fibrosis through NADPH oxidase-mediated generation of oxidative stress in the progression of heart failure. Recent data have suggested that nebivolol, a third-generation β-blocker, improves diastolic dysfunction by targeting nitric oxide (NO) and metabolic pathways that decrease interstitial fibrosis. We sought to determine if targeting NO would improve diastolic function in a model of tissue renin-angiotensin system overactivation. We used the transgenic (TG) (mRen2)27 rat, which overexpresses the murine renin transgene and manifests insulin resistance and left ventricular dysfunction. We treated 6- to 7-wk-old TG (mRen2)27 rats and age-matched Sprague-Dawley control rats with nebivolol (10 mg·kg(-1)·day(-1)) or placebo via osmotic minipumps for a period of 21 days. Compared with Sprague-Dawley control rats, TG (mRen2)27 rats displayed a prolonged diastolic relaxation time and reduced initial filling rate associated with increased interstitial fibrosis and left ventricular hypertrophy. These findings were temporally related to increased NADPH oxidase activity and subunits p47(phox) and Rac1 and increased total ROS and peroxynitrite formation in parallel with reductions in the antioxidant heme oxygenase as well as the phosphorylation/activation of endothelial NO synthase and PKB/Akt. Treatment with nebivolol restored diastolic function and interstitial fibrosis through increases in the phosphorylation of 5'-AMP-activated protein kinase, Akt, and endothelial NO synthase and reductions in oxidant stress. These results support that targeting NO with nebivolol treatment improves diastolic dysfunction through reducing myocardial oxidative stress by enhancing 5'-AMP-activated protein kinase and Akt activation of NO biosynthesis.
Collapse
Affiliation(s)
- Lixin Ma
- Department of Radiology, University of Missouri School of Medicine, Columbia, USA
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Franzosi M, Guerrini U, Castiglioni L, Sironi L, Nobili E, Tremoli E, Caiani EG. Feasibility of quantitative analysis of regional left ventricular function in the post-infarct mouse by magnetic resonance imaging with retrospective gating. Comput Biol Med 2011; 41:829-37. [PMID: 21783184 DOI: 10.1016/j.compbiomed.2011.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 02/04/2011] [Accepted: 06/30/2011] [Indexed: 11/30/2022]
Abstract
We aimed testing feasibility of identification of regional left ventricular (LV) endocardial motion abnormalities in mice undergoing coronary ligation (MI), using cine magnetic resonance with retrospective gating and computation of regional fractional area change (RFAC), by comparison with histological "gold standard" evaluation. ROC analysis determined the optimal RFAC cut-off values for detecting regional ischemic injury. This approach was tested on 18 MI and 10 sham mice. Automated regional LV motion interpretation and bull's eye display allowed non-invasive localization of the induced infarction. Possible applications to future studies assessing the effectiveness of pharmacological treatments or regenerative medicine are expected.
Collapse
Affiliation(s)
- Matteo Franzosi
- Dipartimento di Scienze Farmacologiche, Università degli Studi di Milano, Milan, Italy
| | | | | | | | | | | | | |
Collapse
|