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Chen L, Li H, Liu X, Zhang N, Wang K, Shi A, Gao H, Akdis D, Saguner AM, Xu X, Osto E, Van de Veen W, Li G, Bayés-Genís A, Duru F, Song J, Li X, Hu S. PBX/Knotted 1 homeobox-2 (PKNOX2) is a novel regulator of myocardial fibrosis. Signal Transduct Target Ther 2024; 9:94. [PMID: 38644381 PMCID: PMC11033280 DOI: 10.1038/s41392-024-01804-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 02/08/2024] [Accepted: 03/13/2024] [Indexed: 04/23/2024] Open
Abstract
Much effort has been made to uncover the cellular heterogeneities of human hearts by single-nucleus RNA sequencing. However, the cardiac transcriptional regulation networks have not been systematically described because of the limitations in detecting transcription factors. In this study, we optimized a pipeline for isolating nuclei and conducting single-nucleus RNA sequencing targeted to detect a higher number of cell signal genes and an optimal number of transcription factors. With this unbiased protocol, we characterized the cellular composition of healthy human hearts and investigated the transcriptional regulation networks involved in determining the cellular identities and functions of the main cardiac cell subtypes. Particularly in fibroblasts, a novel regulator, PKNOX2, was identified as being associated with physiological fibroblast activation in healthy hearts. To validate the roles of these transcription factors in maintaining homeostasis, we used single-nucleus RNA-sequencing analysis of transplanted failing hearts focusing on fibroblast remodelling. The trajectory analysis suggested that PKNOX2 was abnormally decreased from fibroblast activation to pathological myofibroblast formation. Both gain- and loss-of-function in vitro experiments demonstrated the inhibitory role of PKNOX2 in pathological fibrosis remodelling. Moreover, fibroblast-specific overexpression and knockout of PKNOX2 in a heart failure mouse model induced by transverse aortic constriction surgery significantly improved and aggravated myocardial fibrosis, respectively. In summary, this study established a high-quality pipeline for single-nucleus RNA-sequencing analysis of heart muscle. With this optimized protocol, we described the transcriptional regulation networks of the main cardiac cell subtypes and identified PKNOX2 as a novel regulator in suppressing fibrosis and a potential therapeutic target for future translational studies.
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Affiliation(s)
- Liang Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Haotong Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Xiaorui Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Ningning Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Kui Wang
- School of Statistics and Data Science, Nankai University, Tianjin, China
| | - Anteng Shi
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Hang Gao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Deniz Akdis
- Department of Cardiology, University Heart Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Ardan M Saguner
- Department of Cardiology, University Heart Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Xinjie Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Elena Osto
- Department of Cardiology, University Heart Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
- Institute for Clinical Chemistry, University Hospital Zurich and University of Zürich, Zurich, Switzerland
| | - Willem Van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Guangyu Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Antoni Bayés-Genís
- Heart Institute, Hospital Universitari Germans Trias i Pujol, Badalona, CIBERCV, Spain
| | - Firat Duru
- Department of Cardiology, University Heart Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Jiangping Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.
| | - Xiangjie Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.
| | - Shengshou Hu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.
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Christa M, Dithmar F, Weinaus T, Kohlhaas M, Arias-Loza AP, Hofmann M, Elabyad IA, Gutjahr FT, Maack C, Bauer WR. A new approach to characterize cardiac sodium storage by combining fluorescence photometry and magnetic resonance imaging in small animal research. Sci Rep 2024; 14:2426. [PMID: 38287086 PMCID: PMC10825176 DOI: 10.1038/s41598-024-52377-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/18/2024] [Indexed: 01/31/2024] Open
Abstract
Cardiac myocyte sodium (Na+) homoeostasis is pivotal in cardiac diseases and heart failure. Intracellular Na+ ([Na+]i) is an important regulator of excitation-contraction coupling and mitochondrial energetics. In addition, extracellular Na+ ([Na+]e) and its water-free storage trigger collagen cross-linking, myocardial stiffening and impaired cardiac function. Therefore, understanding the allocation of tissue Na+ to intra- and extracellular compartments is crucial in comprehending the pathophysiological processes in cardiac diseases. We extrapolated [Na+]e using a three-compartment model, with tissue Na+ concentration (TSC) measured by in vivo 23Na-MRI, extracellular volume (ECV) data calculated from T1 maps, and [Na+]i measured by in vitro fluorescence microscopy using Na+ binding benzofuran isophthalate (SBFI). To investigate dynamic changes in Na+ compartments, we induced pressure overload (TAC) or myocardial infarction (MI) via LAD ligation in mice. Compared to SHAM mice, TSC was similar after TAC but increased after MI. Both TAC and MI showed significantly higher [Na+]i compared to SHAM (around 130% compared to SHAM). Calculated [Na+]e increased after MI, but not after TAC. Increased TSC after TAC was primarily driven by increased [Na+]i, but the increase after MI by elevations in both [Na+]i and [Na+]e.
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Affiliation(s)
- Martin Christa
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany.
- Department of Internal Medicine I, University Hospital Würzburg, Oberdürrbacher Straße 6, Haus A3, 97080, Würzburg, Germany.
| | - Franziska Dithmar
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
- Department of Internal Medicine I, University Hospital Würzburg, Oberdürrbacher Straße 6, Haus A3, 97080, Würzburg, Germany
| | - Tobias Weinaus
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
- Department of Internal Medicine I, University Hospital Würzburg, Oberdürrbacher Straße 6, Haus A3, 97080, Würzburg, Germany
| | - Michael Kohlhaas
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Anahi-Paula Arias-Loza
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Michelle Hofmann
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Ibrahim A Elabyad
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | | | - Christoph Maack
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Wolfgang R Bauer
- Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
- Department of Internal Medicine I, University Hospital Würzburg, Oberdürrbacher Straße 6, Haus A3, 97080, Würzburg, Germany
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Batista ANR, Garcia T, Prudente R, Barbosa MF, Modesto P, Franco E, de Godoy I, Paiva S, Azevedo P, Tanni SE. Cardiac function, myocardial fat deposition, and lipid profile in young smokers: a cross-sectional study. Front Cardiovasc Med 2023; 10:1225621. [PMID: 38034384 PMCID: PMC10682099 DOI: 10.3389/fcvm.2023.1225621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023] Open
Abstract
Background There is a possibility that cardiac morphometric characteristics are associated with the lipid profile, that is, the composition and concentration of triglycerides, total cholesterol, HDL, LDL, and others lipoproteins in young smokers without comorbidities. Thus, this study aimed to evaluate the association of cardiac morphometric characteristics, myocardial fat deposition, and smoking cessation with the lipid profile of young smokers. Methods A clinical and laboratory evaluation of lipids and the smoking status was performed on 57 individuals, including both a smoker group and a control group. Cardiac magnetic resonance imaging (MRI) with proton spectroscopy was performed to identify cardiac changes and triglyceride (TG) deposition in myocardial tissue. Results No differences were observed between the groups (control vs. smokers) in relation to the amount of myocardial TG deposition (p = 0.47); however, when TG deposition was correlated with cardiac MRI variables, a positive correlation was identified between smoking history and myocardial TG deposition [hazard ratio (95% CI), 0.07 (0.03-0.12); p = 0.002]. Furthermore, it was observed that the smoking group had lower high-density lipoprotein cholesterol [51 (45.5-59.5) mg/dl vs. 43 (36-49.5) mg/dl, p = 0.003] and higher TG [73 (58-110) mg/dl vs. 122 (73.5-133) mg/dl, p = 0.01] and very-low-density lipoprotein cholesterol [14.6 (11.6-22.2) mg/dl vs. 24.4 (14.7-26.6) mg/dl, p = 0.01] values. In the control and smoking groups, a negative correlation between TGs and the diameter of the aortic root lumen and positive correlation with the thickness of the interventricular septum and end-diastolic volume (EDV) of both the right ventricle (RV) and left ventricle (LV) were noted. Moreover, in the RV, positive correlations with the end-systolic volume (ESV) index (ESVI), stroke volume (SV), ESV, and EDV were observed. Regarding serum free fatty acids, we found a negative correlation between their values and the diameter of the lumen of the ascending aortic vessel. Lipoprotein lipase showed a positive correlation with the SV index of the RV and negative correlation with the diameter of the lumen of the ascending aortic vessel. Conclusion Several associations were observed regarding cardiac morphometric characteristics, myocardial fat deposition, and smoking cessation with the lipid profile of young smokers.
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Affiliation(s)
- Ana Natália Ribeiro Batista
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Thaís Garcia
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Robson Prudente
- Pulmonary Function Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Maurício F. Barbosa
- Department of Tropical Diseases and Diagnostic Imaging, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Pamela Modesto
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Estefânia Franco
- Pulmonary Function Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Irma de Godoy
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Sergio Paiva
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Paula Azevedo
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
| | - Suzana Erico Tanni
- Pneumology Area, Department of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, Brazil
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Gu Y, Avolio E, Alvino VV, Thomas AC, Herman A, Miller PJ, Sullivan N, Faulkner A, Madeddu P. The tyrosine kinase inhibitor Dasatinib reduces cardiac steatosis and fibrosis in obese, type 2 diabetic mice. Cardiovasc Diabetol 2023; 22:214. [PMID: 37592236 PMCID: PMC10436421 DOI: 10.1186/s12933-023-01955-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/08/2023] [Indexed: 08/19/2023] Open
Abstract
BACKGROUND Cardiac steatosis is an early yet overlooked feature of diabetic cardiomyopathy. There is no available therapy to treat this condition. Tyrosine kinase inhibitors (TKIs) are used as first or second-line therapy in different types of cancer. In cancer patients with diabetes mellitus, TKIs reportedly improved glycemic control, allowing insulin discontinuation. They also reduced liver steatosis in a murine model of non-alcoholic fatty liver disease. The present study aimed to determine the therapeutic effect of the second-generation TKI Dasatinib on lipid accumulation and cardiac function in obese, type 2 diabetic mice. We also assessed if the drug impacts extra-cardiac fat tissue depots. METHODS Two studies on 21-week-old male obese leptin receptor mutant BKS.Cg-+Leprdb/+Leprdb/OlaHsd (db/db) mice compared the effect of Dasatinib (5 mg/kg) and vehicle (10% DMSO + 90% PEG-300) given via gavage once every three days for a week or once every week for four weeks. Functional and volumetric indices were studied using echocardiography. Post-mortem analyses included the assessment of fat deposits and fibrosis using histology, and senescence using immunohistochemistry and flow cytometry. The anti-adipogenic action of Dasatinib was investigated on human bone marrow (BM)-derived mesenchymal stem cells (MSCs). Unpaired parametric or non-parametric tests were used to compare two and multiple groups as appropriate. RESULTS Dasatinib reduced steatosis and fibrosis in the heart of diabetic mice. The drug also reduced BM adiposity but did not affect other fat depots. These structural changes were associated with improved diastolic indexes, specifically the E/A ratio and non-flow time. Moreover, Dasatinib-treated mice had lower levels of p16 in the heart compared with vehicle-treated controls, suggesting an inhibitory impact of the drug on the senescence signalling pathway. In vitro, Dasatinib inhibited human BM-MSC viability and adipogenesis commitment. CONCLUSIONS Our findings suggest that Dasatinib opposes heart and BM adiposity and cardiac fibrosis. In the heart, this was associated with favourable functional consequences, namely improvement in an index of diastolic function. Repurposing TKI for cardiac benefit could address the unmet need of diabetic cardiac steatosis.
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Affiliation(s)
- Yue Gu
- Bristol Heart Institute, Translational Health Sciences, Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Elisa Avolio
- Bristol Heart Institute, Translational Health Sciences, Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Valeria V Alvino
- Bristol Heart Institute, Translational Health Sciences, Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Anita C Thomas
- Bristol Heart Institute, Translational Health Sciences, Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
- School of Cellular and Molecular Medicine, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Andrew Herman
- School of Cellular and Molecular Medicine, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Poppy J Miller
- School of Cellular and Molecular Medicine, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | | | - Ashton Faulkner
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Paolo Madeddu
- Bristol Heart Institute, Translational Health Sciences, Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK.
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Zhang X, Li G, Shi C, Zhang D, Sun Y. Combined superposition effect of hypertension and dyslipidemia on left ventricular hypertrophy. Animal Model Exp Med 2022; 5:227-238. [PMID: 35746831 PMCID: PMC9240736 DOI: 10.1002/ame2.12249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/06/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Hypertension and dyslipidemia are considered reversible risk factors for cardiovascular disease. The purpose of this study was to explore the impact of traditional and nontraditional blood lipid profiles on the risk of left ventricular hypertrophy (LVH) and to explore the superposition effect of dyslipidemia combined with hypertension. METHODS Data on 9134 participants (53.5 ± 10.3 years old) from the Northeast China Rural Cardiovascular Health Study (NCRCHS) were statistically analyzed. The blood lipid profile was measured by total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), total glyceride (TG), and calculated nontraditional blood lipid indices including non-HDL-C, atherosclerosis index (AI), TC/HDL-C, and residual cholesterol (RC). RESULTS After the adjustment of age and gender, the odds ratios (ORs) of LVH in patients with hypertension, high LDL-C, high non-HDL-C, high AI, and high TC/HDL-C were 3.97 (3.31-4.76), 1.27 (1.02-1.59), 1.21 (1.04-1.39), 1.33 (1.15-1.53), and 1.42 (1.22-1.65), respectively. After full adjustment of potential confounding factors, high AI and TC/HDL-C were associated with LVH rather than traditional blood lipid indices. The combination of hypertension and nontraditional dyslipidemia (defined by high AI and TC/HDL-C) was associated with the highest risk of LVH, especially in participants under 45 years of age. The risk was more significant in men, 5.09-fold and 6.24-fold, respectively, compared with 3.66-fold and 4.01-fold in women. CONCLUSIONS People with dyslipidemia defined by nontraditional blood lipid indices (high AI and high TC/HDL-C) and hypertension were more likely to develop LVH.
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Affiliation(s)
- Xueyao Zhang
- Department of CardiologyFirst Hospital of China Medical UniversityShenyangChina
| | - Guangxiao Li
- Department of Medical Record ManagementFirst Hospital of China Medical UniversityShenyangChina
| | - Chuning Shi
- Department of CardiologyFirst Hospital of China Medical UniversityShenyangChina
| | - Dongyuan Zhang
- NHC Key Laboratory of Human Disease Comparative MedicineInstitute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS), Comparative Medicine Center, Peking Union Medical College (PUMC)BeijingChina
| | - Yingxian Sun
- Department of CardiologyFirst Hospital of China Medical UniversityShenyangChina
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Srinivasamurthy BC, Saravanan SP, Marak FK, Manivel P, Bhat RV, Mathiyazhagan D. Morphological Cardiac Alterations in Liver Cirrhosis: An Autopsy Study. Heart Views 2021; 22:96-101. [PMID: 34584619 PMCID: PMC8445142 DOI: 10.4103/heartviews.heartviews_14_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 02/04/2021] [Indexed: 11/04/2022] Open
Abstract
Background Cirrhosis can cause various cardiac complications and severely affect the prognosis of the patient suffering from cirrhosis. Anatomical, morphological variations in the heart of patients with liver cirrhosis in the absence of known cardiac disease has not been well described. There is a paucity of studies in the literature on cardiac alterations in cirrhosis. Early detection of known cardiac alterations can further help in improving the quality of life. Materials and Methods A cross-sectional descriptive study was conducted in the departments of pathology and forensic medicine of our institution. An autopsy-based prospective study of forty consecutive patients with final diagnosis of liver cirrhosis were included. Patients with a known history of cardiac disease/anomaly were excluded from the study. Macroscopic and microscopic changes in the heart and coronaries were noted and statistically analyzed. Results Analysis of the hearts on gross examination showed cardiomegaly in 31 patients (77.5%). All cases had left ventricular hypertrophy. Endocardial thickening was seen in 22 patients (55%). Calcified mitral valve was seen in 9 patients (22.5%).On microscopy, apart from hypertrophy, the pathological changes like interstitial oedema (47.5%), fibrosis (45%), cardiac muscle disarray (87.5%), fatty infiltrate (10%), pericarditis (5%), and severe coronary artery atherosclerosis (17.5%) were seen in the patients. Conclusion Knowledge about the involvement of the heart in liver cirrhosis is essential for both the physician and the surgeons to prevent adverse outcomes during liver transplantation and can further help in improving the quality of life of the patient.
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Affiliation(s)
| | - Sanjay P Saravanan
- Department of Pathology, Indira Gandhi Medical College and Research Institute, Puducherry, India
| | - Fremingston K Marak
- Forensic Medicine, Indira Gandhi Medical College and Research Institute, Puducherry, India
| | - Prakash Manivel
- Community Medicine, Indira Gandhi Medical College and Research Institute, Puducherry, India
| | - Ramachandra V Bhat
- Department of Pathology, Indira Gandhi Medical College and Research Institute, Puducherry, India
| | - Dharanya Mathiyazhagan
- Department of Pathology, Indira Gandhi Medical College and Research Institute, Puducherry, India
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Yu S, Kim SR, Jiang K, Ogrodnik M, Zhu XY, Ferguson CM, Tchkonia T, Lerman A, Kirkland JL, Lerman LO. Quercetin Reverses Cardiac Systolic Dysfunction in Mice Fed with a High-Fat Diet: Role of Angiogenesis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8875729. [PMID: 33688395 PMCID: PMC7914089 DOI: 10.1155/2021/8875729] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/11/2021] [Accepted: 02/07/2021] [Indexed: 12/20/2022]
Abstract
Global consumption of high-fat diets (HFD) is associated with an increased incidence of cardiometabolic syndrome and cardiac injury, warranting identification of cardioprotective strategies. Cardioprotective effects of quercetin (Q) have mostly been evaluated in ischemic heart disease models and attributed to senolysis. We hypothesized that Q could alleviate murine cardiac damage caused by HFD by restoring the myocardial microcirculation. C57BL/6J mice were fed standard chow or HFD for 6 months and then treated with Q (50 mg/kg) or vehicle 5-day biweekly for 10 additional weeks. Left ventricular (LV) cardiac function was studied in vivo using magnetic resonance imaging, and intramyocardial fat deposition, microvascular density, oxidative stress, and senescence were analyzed ex vivo. Additionally, direct angiogenic effects of Q were studied in vitro in HUVECs. HFD increased body weight, heart weight, total cholesterol, and triglyceride levels, whereas Q normalized heart weight and triglycerides. LV ejection fraction was lower in HFD vs. control mice (56.20 ± 15.8% vs. 73.38 ± 5.04%, respectively, P < 0.05), but improved in HFD + Q mice (67.42 ± 7.50%, P < 0.05, vs. HFD). Q also prevented cardiac fat accumulation and reduced HFD-induced cardiac fibrosis, cardiomyocyte hypertrophy, oxidative stress, and vascular rarefaction. Cardiac senescence was not observed in any group. In vitro, ox-LDL reduced HUVEC tube formation activity, which Q effectively improved. Quercetin may directly induce angiogenesis and decrease myocardial oxidative stress, which might account for its cardioprotective effects in the murine HFD-fed murine heart independently from senolytic activity. Furthermore, its beneficial effects might be partly attributed to a decrease in plasma triglycerides and intramyocardial fat deposition.
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Affiliation(s)
- Shasha Yu
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
- Department of Cardiology, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Seo Rin Kim
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
- Department of Nephrology and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Kai Jiang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Mikolaj Ogrodnik
- Ludwig Boltzmann Institute for Clinical and Experimental Traumatology Donaueschingenstraße 13, A-1200 Vienna, Austria
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - Xiang Y. Zhu
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Tamara Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - Amir Lerman
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - James L. Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
| | - Lilach O. Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Lipid profile and left ventricular geometry pattern in obese children. Lipids Health Dis 2020; 19:109. [PMID: 32456629 PMCID: PMC7251900 DOI: 10.1186/s12944-020-01285-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/12/2020] [Indexed: 01/19/2023] Open
Abstract
Background Left ventricular hypertrophy (LVH) is an important risk factor for cardiovascular and all-cause mortality. Previous studies reported conflicting results concerning the relationship between serum lipid levels and left ventricular geometry pattern. We sought to explore the relationship between standard serum lipid profile measures with left ventricular geometry pattern in obese children. Patients and methods In this cross-sectional study, a total of 70 obese children were examined. Fasting blood samples were taken to measure total cholesterol, low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), triglycerides (TGs), glucose, and insulin. Based on these values TG/HDL ratio, BMI and HOMA index were calculated. We also measured the average 24-h ambulatory systolic blood pressure (SBP) and two-dimensional (2/D) transthoracic echocardiography was performed to determine left ventricular mass index (LVMI) and relative wall thickness (RWT). Multiple regression analyses were conducted to explore relationships between study variables and the LVMI or RWT as outcome variables. The final model with LVMI included TG/HDL ratio, BMI, 24 h-average SBP, age and sex, while for the RWT we included BMI, insulin, age and sex. Results Our study included 70 children (65.71% boys and 34.29% girls) median age (14 years, IQR = 12–16)." We demonstrated independent and positive association of TG/HDL ratio, BMI and 24 h-average SBP with LVMI (effect = 3.65, SE = 1.32, p < 0.01; effect = 34.90, SE = 6.84, p < 0.01; effect = 0.32, SE = 0.12, p < 0.01, respectively). On the other hand, in model with RWT as outcome variable, only BMI and insulin were significantly linked (BMI: effect = 13.07, SE = 5.02, p = 0.01 Insulin: effect = 2.80, SE = 0.97). Conclusion Increased TG/HDL ratio in obese children is associated with the development of eccentric left ventricular hypertrophy while increased BMI and insulin were associated with concentric left ventricular hypertophy.
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Liu S, Lin X, Shi X, Fang L, Huo L, Shang F, Knuuti J, Han C, Wu X, Guo R, Ding H, Zhang R, Duan H, Ding J, Xing H, Zhao X. Myocardial tissue and metabolism characterization in men with alcohol consumption by cardiovascular magnetic resonance and 11C-acetate PET/CT. J Cardiovasc Magn Reson 2020; 22:23. [PMID: 32299425 PMCID: PMC7161264 DOI: 10.1186/s12968-020-00614-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 03/03/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Chronic alcohol consumption initially leads to asymptomatic left ventricular dysfunction, but can result in myocardial impairment and heart failure if ongoing. This study sought to characterize myocardial tissues and oxidative metabolism in asymptomatic subjects with chronic alcohol consumption by quantitative cardiovascular magnetic resonance (CMR) and 11C-acetate positron emission tomography (PET)/computed tomography (CT). METHODS Thirty-four male subjects (48.8 ± 9.1 years) with alcohol consumption > 28 g/day for > 10 years and 35 age-matched healthy male subjects (49.5 ± 9.7 years) underwent CMR and 11C-acetate PET/CT. Native and post T1 values and extracellular volume (ECV) from CMR and Kmono and K1 from PET imaging were measured. Quantitative measurements by CMR and PET imaging were compared between subjects with moderate to heavy alcohol consumption and healthy controls, and their correlations were also analyzed. RESULTS Compared to healthy controls, subjects with alcohol consumption showed significantly shorter native T1 (1133 ± 65 ms vs. 1186 ± 31 ms, p < 0.001) and post T1 (477 ± 42 ms vs. 501 ± 38 ms, p = 0.008) values, greater ECV (28.2 ± 2.2% vs. 26.9 ± 1.3%, p = 0.003), marginally lower Kmono (57.6 ± 12.1 min- 1 × 10- 3 vs. 63.0 ± 11.7 min- 1 × 10- 3, p = 0.055), and similar K1 (0.82 ± 0.13 min- 1 vs. 0.83 ± 0.15 min- 1, p = 0.548) after adjusting for confounding factors. There were no significant differences in CMR measurements and K1 between subjects with heavy and moderate alcohol consumption (all p > 0.05). In contrast, subjects with heavy alcohol consumption showed significantly lower Kmono values compared to those with moderate alcohol consumption (52.9 ± 12.1 min- 1 × 10- 3 vs. 63.7 ± 9.2 min- 1 × 10- 3, p = 0.012). Strong and moderate correlations were found between K1 and ECV in healthy controls (r = 0.689, p = 0.013) and subjects with moderate alcohol consumption (r = 0.518, p = 0.048), respectively. CONCLUSION Asymptomatic men with heavy alcohol consumption have detectable structural and metabolic changes in myocardium on CMR and 11C-acetate PET/CT. Compared with quantitative CMR, 11C-acetate PET/CT imaging may be more sensitive for detecting differences in myocardial damage among subjects with moderate to heavy alcohol consumption.
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Affiliation(s)
- Shuai Liu
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Haidian District, Beijing, 100084, China
| | - Xue Lin
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, China
| | - Ximin Shi
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science, 1# Shuaifuyuan, Dongcheng District, Beijing, 100730, China
- Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Ligang Fang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, China
| | - Li Huo
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science, 1# Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
- Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China.
| | - Fei Shang
- Department of Biomedical Engineering, Beijing Institute of Technology School of Life Science, Beijing, China
| | - Juhani Knuuti
- Turku PET Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Chunlei Han
- Turku PET Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Xiaomeng Wu
- Department of Biomedical Engineering, Beijing Institute of Technology School of Life Science, Beijing, China
| | - Rui Guo
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Haidian District, Beijing, 100084, China
| | - Haiyan Ding
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Haidian District, Beijing, 100084, China
| | - Runhua Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Huimin Duan
- Department of Medical Engineering, First Affiliated Hospital of PLA General Hospital, Beijing, China
| | - Jie Ding
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science, 1# Shuaifuyuan, Dongcheng District, Beijing, 100730, China
- Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Haiqun Xing
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science, 1# Shuaifuyuan, Dongcheng District, Beijing, 100730, China
- Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Xihai Zhao
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Haidian District, Beijing, 100084, China.
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Antonopoulos AS, Antoniades C. Cardiac Magnetic Resonance Imaging of Epicardial and Intramyocardial Adiposity as an Early Sign of Myocardial Disease. Circ Cardiovasc Imaging 2019; 11:e008083. [PMID: 30354506 DOI: 10.1161/circimaging.118.008083] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Alexios S Antonopoulos
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Charalambos Antoniades
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom
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11
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Chagas P, Badimon L, Augustin Schwanke CH. Reply to letter to the editor: Epicardial adipose tissue, alcohol consumption, and coronary artery disease severity. Clin Nutr 2017; 37:405. [PMID: 29273211 DOI: 10.1016/j.clnu.2017.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 12/01/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Patrícia Chagas
- Department of Food and Nutrition, Universidade Federal de Santa Maria, Palmeira das Missões, Brazil; Program of Postgraduate in Gerontology, Universidade Federal de Santa Maria, Santa Maria, Brazil.
| | - Lina Badimon
- Cardiovascular Research Center, CSIC-ICCC, Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain; Cardiovascular Research Chair, UAB, Barcelona, Spain.
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