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May LE, McDonald S, Stewart C, Newton E, Isler C, Steed D, Sarno LA, Kelley GA, Chasan-Taber L, Kuehn D, Allman-Tucker BR, Strom C, Claiborne A, Fang X. Influence of Supervised Maternal Aerobic Exercise during Pregnancy on 1-Month-Old Neonatal Cardiac Function and Outflow: A Pilot Study. Med Sci Sports Exerc 2023; 55:1977-1984. [PMID: 37259255 PMCID: PMC10592655 DOI: 10.1249/mss.0000000000003227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PURPOSE The objective of this study is to assess the effects of supervised, recommended levels of prenatal aerobic exercise on 1-month-old infant cardiac function. METHODS Eligible pregnant women were randomly assigned to either an aerobic exercise group that participated in 150 min of supervised, moderate-intensity (40% to 59% V̇O 2peak , 12 to 14 on Borg rating of perceived exertion) aerobic exercise per week for 24 wk or more or a nonexercising group that consisted of 150 min·wk -1 of relaxation techniques. One-month-old infant echocardiogram was performed to assess infant cardiac function , including heart rate (HR), left-ventricular stroke volume, cardiac output, cardiac index, ejection fraction, fractional shortening, and velocity time integral at the aortic valve. Pearson correlation analyses and linear regression models were performed. RESULTS Prenatal aerobic exercise was negatively correlated with infant resting HR ( r = -0.311, P = 0.02). Similarly, when controlling for infant sex and activity state, exercise level/volume ( β = -0.316; 95% CI, -0.029 to -0.002; P = 0.02) predicted resting infant HR ( R2 = 0.18, P = 0.02). In infants of overweight/obese women, infants of aerobic exercisers had increased fractional shortening ( P = 0.03). In addition, infant ventricular ejection fraction was correlated with maternal exercise attendance ( r = 0.418, P = 0.03) as well as a trend for exercise level ( r = 0.351, P = 0.08). Similarly, the only significant regression model for infants of overweight/obese women controls infant activity state ( β = -0.444; 95% CI, -0.05 to -0.01; P = 0.006) and maternal exercise level ( β = 0.492; 95% CI, 5.46-28.74; P = 0.01) predicting infant resting HR ( F = 5.79, R2 = 0.40, P = 0.003). CONCLUSIONS The findings of this study demonstrate that women participating in exercise in the second and third trimesters of their pregnancy may have infants with increased cardiac function at 1 month of age. Importantly, the cardiac function effects were further augmented for infants born to overweight/obese women.
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Affiliation(s)
| | - Samantha McDonald
- School of Kinesiology and Recreation, Illinois State University, Normal, IL
| | - Courtney Stewart
- College of Osteopathic Medicine, Liberty University, Lynchburg, VA
| | - Edward Newton
- Department of Obstetrics and Gynecology, East Carolina University, Greenville, NC
| | - Christy Isler
- Department of Obstetrics and Gynecology, East Carolina University, Greenville, NC
| | - Dennis Steed
- Department of Pediatrics, Division of Pediatric Cardiology, East Carolina University, Greenville, NC
| | - Lauren A Sarno
- Department of Pediatrics, Division of Pediatric Cardiology, East Carolina University, Greenville, NC
| | - George A Kelley
- Department of Epidemiology and Biostatistics, West Virginia University, Morgantown, WV
| | - Lisa Chasan-Taber
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, MA
| | | | | | - Cody Strom
- Department of Kinesiology and Sport, University of Southern Indiana, Evansville, IN
| | - Alex Claiborne
- Department of Kinesiology, East Carolina University, Greenville, NC
| | - Xiangming Fang
- Department of Biostatistics, East Carolina University, Greenville, NC
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Weng L, Ye J, Yang F, Jia S, Leng M, Jia B, Xu C, Zhao Y, Liu R, Xiong Y, Zhou Y, Zhao J, Zheng M. TGF-β1/SMAD3 Regulates Programmed Cell Death 5 That Suppresses Cardiac Fibrosis Post-Myocardial Infarction by Inhibiting HDAC3. Circ Res 2023. [PMID: 37345556 DOI: 10.1161/circresaha.123.322596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
BACKGROUND Progressive cardiac fibrosis leads to ventricular wall stiffness, cardiac dysfunction, and eventually heart failure, but the underlying mechanism remains unexplored. PDCD5 (programmed cell death 5) ubiquitously expresses in tissues, including the heart; however, the role of PDCD5 in cardiac fibrosis is largely unknown. Therefore, this study aims at exploring the possible role and underlying mechanisms of PDCD5 in the pathogenesis of cardiac fibrosis. METHODS AND RESULTS PDCD5 levels were found to be elevated in the serum obtained from patients with cardiac fibrosis, in fibrotic mice heart tissues after myocardial infarction, and in cardiac fibroblasts stimulated by Ang II (angiotensin II)- or TGF-β1 (transforming growth factor-β1). Overexpression of PDCD5 in cardiac fibroblasts or treatment with PDCD5 protein reduced the expression of profibrogenic proteins in response to TGF-β1 stimulation, while knockdown of PDCD5 increased fibrotic responses. It has been demonstrated that SMAD3, a protein that is also known as mothers against decapentaplegic homolog 3, directly upregulated PDCD5 during cardiac fibrosis. Subsequently, the increased PDCD5 promoted HDAC3 (histone deacetylase 3) ubiquitination, thus, inhibiting HDAC3 to reduce fibrotic responses. Fibroblast-specific knock-in of PDCD5 in mice ameliorated cardiac fibrosis after myocardial infarction and enhanced cardiac function, and these protective effects were eliminated by AAV9-mediated HDAC3 overexpression. CONCLUSIONS The findings of this study demonstrated that PDCD5 is upregulated by SMAD3 during cardiac fibrosis, which subsequently ameliorated progressive fibrosis and cardiac dysfunction through HDAC3 inhibition. Thus, this study suggests that PDCD5 functions as a negative feedback factor on fibrotic signaling pathways and might serve as a potential therapeutic target to suppress the progression of fibrotic responses.
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Affiliation(s)
- Lin Weng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Jingjing Ye
- Trauma Medicine Center, Peking University People's Hospital, Key Laboratory of Trauma Treatment and Neural Regeneration (Peking University), National Center for Trauma Medicine, Beijing, China (J.Y., B.J.)
| | - Fenghe Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Shi Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Minghong Leng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Bo Jia
- Trauma Medicine Center, Peking University People's Hospital, Key Laboratory of Trauma Treatment and Neural Regeneration (Peking University), National Center for Trauma Medicine, Beijing, China (J.Y., B.J.)
| | - Chunling Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Yang Zhao
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China (Y. Zhou)
| | - Ruxia Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Yufei Xiong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Yiqing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Junhui Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
| | - Ming Zheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China (L.W., F.Y., S.J., M.L., C.X., R.L., Y.X., Y. Zhao, J.Z., M.Z.)
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Vargas-Neri JL, Carleton B, Ross CJ, Medeiros M, Castañeda-Hernández G, Clark P. Pharmacogenomic study of anthracycline-induced cardiotoxicity in Mexican pediatric patients. Pharmacogenomics 2022; 23:291-301. [PMID: 35147047 DOI: 10.2217/pgs-2021-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: The aim of this study was to evaluate the association between well-defined genetic risk variants in SLC28A3, RARG and UGT1A6 and anthracycline-induced cardiotoxicity in Mexican pediatric patients. Methods: We tested a cohort of 79 children treated with anthracyclines for the presence of SLC28A3-rs7853758, RARG-rs2229774 and UGT1A6-rs17863783. Results: The SLC28A3-rs7853758 variant was more frequent in this cohort, while the UGT1A6-rs17863783 and RARG-rs2229774 variants were present at lower frequencies. A clinically important decrease of fractional shortening was associated with SLC28A3-rs7853758 variant. Conclusion: In this cohort, 39.2% of patients carried the protective SLC28A3 variant. A small number of tested patients have the risk variants of UGT1A6 and RARG. None of the patients shared the two risk variants.
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Affiliation(s)
- Jessica L Vargas-Neri
- Clinical Epidemiology Unit of Hospital Infantil de México Federico Gómez-Medicine Faculty of Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Bruce Carleton
- Department of Pediatrics, Division of Translational Therapeutics, Faculty of Medicine, University of British Columbia & British Columbia Children's Hospital & Research Institute, Vancouver, Canada
| | - Colin J Ross
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada
| | - Mara Medeiros
- Research & Diagnostic Unit of Nephrology & Bone & Mineral Metabolism of Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Gilberto Castañeda-Hernández
- Department of Pharmacology of Centro de Investigación y de Estudios Avanzados of Instituto Politécnico Nacional, Mexico City, Mexico
| | - Patricia Clark
- Clinical Epidemiology Unit of Hospital Infantil de México Federico Gómez-Medicine Faculty of Universidad Nacional Autónoma de México, Mexico City, Mexico
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Bahl A, Johnson S, Altwail M, Brackney A, Xiao J, Price J, Shotkin P, Chen NW. Left Ventricular Ejection Fraction Assessment by Emergency Physician-Performed Bedside Echocardiography: A Prospective Comparative Evaluation of Multiple Modalities. J Emerg Med 2021; 61:711-719. [PMID: 34654586 DOI: 10.1016/j.jemermed.2021.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/30/2021] [Accepted: 09/11/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although there is some support for visual estimation (VE) as an accurate method to estimate left ventricular ejection fraction (LVEF), it is also scrutinized for its subjectivity. Therefore, more objective assessments, such as fractional shortening (FS) or e-point septal separation (EPSS), may be useful in estimating LVEF among patients in the emergency department (ED). OBJECTIVE Our aim was to compare the real-world accuracy of VE, FS, and EPSS using a sample of point-of-care cardiac ultrasound transthoracic echocardiography (POC-TTE) images acquired by emergency physicians (EPs) with the gold standard of Simpson's method of discs, as measured by comprehensive cardiology-performed echocardiography. METHODS We conducted a single-site prospective observational study comparing VE, FS, and EPSS to assess LVEF. Adult patients in the ED receiving both POC-TTE and comprehensive cardiology TTE were included. EPs acquired POC-TTE images and videos that were then interpreted by 2 blinded EPs who were fellowship-trained in emergency ultrasound. EPs estimated LVEF using VE, FS, and EPSS. The primary outcome was accuracy. RESULTS Between April and May 2018, 125 patients were enrolled and 113 were included in the final analysis. EP1 and EP2 had a κ of 0.94 (95% confidence interval [CI] 0.87-1.00) and 0.97 (95% CI 0.91-1.00), respectively, for VE compared with gold standard, a κ of 0.40 (95% CI 0.23-0.57) and 0.38 (95% CI 0.18-0.57), respectively, for EPSS compared with gold standard, and a κ of 0.70 (95% CI 0.54-0.85) and 0.66 (95% CI 0.50-0.81), respectively, for FS compared with gold standard. Sensitivity of severe dysfunction was moderate to high in VE (EP1 85% and EP2 93%), poor to moderate in FS (EP1 73% and EP2 50%), and poor in EPSS (EP1 11% and EP2 18%). CONCLUSIONS Using a real-world sample of POC-TTE images, the quantitative measurements of EPSS and FS demonstrated poor accuracy in estimating LVEF, even among experienced sonographers. These methods should not be used to determine cardiac function in the ED. VE by experienced physicians demonstrated reliable accuracy for estimating LVEF compared with the gold standard of cardiology-performed TTE.
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Affiliation(s)
- Amit Bahl
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan.
| | - Steven Johnson
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Mina Altwail
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Abigail Brackney
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Jane Xiao
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Jacob Price
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Paul Shotkin
- Department of Emergency Medicine, Beaumont Hospital, Royal Oak, Michigan
| | - Nai-Wei Chen
- Beaumont Research Institute, Beaumont Hospital, Royal Oak, Michigan
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Caldwell JT, Jones KMD, Park H, Pinto JR, Ghosh P, Reid-Foley EC, Ulrich B, Delp MD, Behnke BJ, Muller-Delp JM. Aerobic exercise training reduces cardiac function and coronary flow-induced vasodilation in mice lacking adiponectin. Am J Physiol Heart Circ Physiol 2021; 321:H1-H14. [PMID: 33989084 DOI: 10.1152/ajpheart.00885.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We tested the hypothesis that adiponectin deficiency attenuates cardiac and coronary microvascular function and prevents exercise training-induced adaptations of the myocardium and the coronary microvasculature in adult mice. Adult wild-type (WT) or adiponectin knockout (adiponectin KO) mice underwent treadmill exercise training or remained sedentary for 8-10 wk. Systolic and diastolic functions were assessed before and after exercise training or cage confinement. Vasoreactivity of coronary resistance arteries was assessed at the end of exercise training or cage confinement. Before exercise training, ejection fraction and fractional shortening were similar in adiponectin KO and WT mice, but isovolumic contraction time was significantly lengthened in adiponectin KO mice. Exercise training increased ejection fraction (12%) and fractional shortening (20%) with no change in isovolumic contraction time in WT mice. In adiponectin KO mice, both ejection fraction (-9%) and fractional shortening (-12%) were reduced after exercise training and these decreases were coupled to a further increase in isovolumic contraction time (20%). In sedentary mice, endothelium-dependent dilation to flow was higher in arterioles from adiponectin KO mice as compared with WT mice. Exercise training enhanced dilation to flow in WT mice but decreased flow-induced dilation in adiponectin KO mice. These data suggest that compensatory mechanisms contribute to the maintenance of cardiac and coronary microvascular function in sedentary mice lacking adiponectin; however, in the absence of adiponectin, cardiac and coronary microvascular adaptations to exercise training are compromised.NEW & NOTEWORTHY We report that compensatory mechanisms contribute to the maintenance of cardiac and coronary microvascular function in sedentary mice in which adiponectin has been deleted; however, when mice lacking adiponectin are subjected to the physiological stress of exercise training, beneficial coronary microvascular and cardiac adaptations are compromised or absent.
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Affiliation(s)
- Jacob T Caldwell
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida
| | | | - Hyerim Park
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida
| | - Jose R Pinto
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida
| | - Payal Ghosh
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida
| | - Emily C Reid-Foley
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida
| | - Brody Ulrich
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida
| | - Michael D Delp
- Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee, Florida
| | - Brad J Behnke
- Department of Kinesiology, Johnson Cancer Research Center, Kansas State University, Manhattan, Kansas
| | - Judy M Muller-Delp
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida
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Ismail M, Jijeh A, Alhuwaymil RM, Alahmari R, Alshahrani R, Almutairi R, Habshan F, Shaath GA. Long-Term Outcome of the Anomalous Origin of the Left Coronary Artery From the Pulmonary Artery (ALCAPA) in Children After Cardiac Surgery: A Single-Center Experience. Cureus 2020; 12:e11829. [PMID: 33409071 PMCID: PMC7781494 DOI: 10.7759/cureus.11829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background The anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital coronary artery anomaly. It induces left ventricular (LV) dysfunction and mitral valve regurgitation (MR). If untreated, survival beyond infancy is rare. The aim of our study was to analyze the outcome in children with ALCAPA after cardiac surgery. Methods We retrospectively reviewed all patients who were diagnosed at our institution with ALCAPA and underwent surgical repair from 1999 to the end of 2018 (for 20 years). We followed LV dimensions, function, the progress of MV regurgitation, and the somatic growth of children after surgical repair. Results Twenty-nine patients underwent ALCAPA repair while 15 (52%) patients were male. The median age at surgical repair was 5.3 (IQR: 3.8-7.4) months and the mean weight was 5.5±2 kg. Surgical repair was performed in form of coronary reimplantation in 26 (90%) patients and Takeuchi repair in three (10%) patients. Intensive care unit (ICU) stay was eight (IQR: 6-17) days and hospital stay was 15 (IQR: 12-21) days. The follow-up duration was 5±3.6 years. Echocardiographic parameters started to improve by six weeks after the repair, and they normalized by one year. At the time of surgery ejection fraction (EF) was 34±17%, fractional shortening (FS) was 15±10%, and LV inner diameter in diastole (LVIDD) z score was 5.7±2.8. These parameters improved by one year after surgery to 66±7%, 34±6%, and 0±1.3, respectively. However, somatic growth started to improve six months after surgical repair. MR was moderate to severe in seven (24%) patients at the time of surgery and regressed to no more moderate nor severe MR at the last follow-up. None of the 29 patients died. Conclusions LV systolic function and dimensions start to improve by six weeks after surgery and reach normal values by one year. MR regresses without intervention in correspondence with the regression of LV dimensional parameters. The somatic growth of children improves six months after repair.
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Affiliation(s)
- Muna Ismail
- Cardiac Sciences Department, Pediatric Cardiology, King Abdulaziz Cardiac Center, Ministry of the National Guard - Health Affairs, Riyadh, SAU
| | - Abdulraouf Jijeh
- Cardiac Sciences Department, Pediatric Cardiac Intensive Care Unit, Ministry of National Guard - Health Affairs, Riyadh, SAU
| | - Rathath M Alhuwaymil
- Echocardiographic Technology, College of Applied Medical Sciences King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Raneem Alahmari
- Echocardiographic Technology, College of Applied Medical Sciences King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Rawan Alshahrani
- Echocardiographic Technology, College of Applied Medical Sciences King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Reem Almutairi
- Echocardiographic Technology, College of Applied Medical Sciences King Saud bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Fahad Habshan
- King Abdulaziz Cardiac Center, Pediatric Cardiology, King Abdulaziz Medical City Riyadh, Riyadh, SAU
| | - Ghassan A Shaath
- Cardiac Sciences Department, Pediatric Cardiac Intensive Care Unit, King Abdulaziz Cardiac Center. Ministry of the National Guard - Health Affairs, Riyadh, SAU
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Motoki T, Shimizu-Motohashi Y, Saito I, Komaki H, Ishiyama A, Aibara K, Jogamoto T, Tezuka Y, Kawabe M, Makino A, Nagatani K, Tatara K, Kuwabara K, Kikuchi C, Fukuda M, Ishii E, Eguchi M. Renal dysfunction can occur in advanced-stage Duchenne muscular dystrophy. Muscle Nerve 2019; 61:192-197. [PMID: 31725904 DOI: 10.1002/mus.26757] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 11/10/2022]
Abstract
INTRODUCTION With improved treatments, patients with Duchenne muscular dystrophy (DMD) can survive far beyond adolescence. However, advanced-stage DMD patients are at risk of developing renal dysfunction. In this study, long-term renal function outcomes and associated risk factors in advanced stage DMD were analyzed. METHODS Fifty-one patients were classified into three different age groups (<20, 20-29, and ≥30 years of age), and cystatin C (CysC) levels were compared among groups. RESULTS Median serum CysC levels were 0.74 mg/L, 0.63 mg/L, and 0.76 mg/L in the age groups of <20, 20-29, and ≥30 years, respectively (P = .003). Five of the nine patients in the ≥30 years age group showed elevated serum CysC and decreased cardiac function compared with the other four in the group (P = .014). DISCUSSION Our results indicate an association between cardiac and renal dysfunction in patients with advanced-stage DMD.
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Affiliation(s)
- Takahiro Motoki
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yuko Shimizu-Motohashi
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Isao Saito
- Department of Public Health and Epidemiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Hirofumi Komaki
- Translational Medical Center, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Akihiko Ishiyama
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Kaori Aibara
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Toshihiro Jogamoto
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yuko Tezuka
- Division of Pediatrics, Ehime Prefectural Niihama Hospital, Niihama, Ehime, Japan
| | - Mika Kawabe
- Ehime Rehabilitation Center for Children, Toon, Ehime, Japan
| | - Akira Makino
- Division of Pediatrics, Ehime Prefectural Niihama Hospital, Niihama, Ehime, Japan
| | - Koji Nagatani
- Division of Pediatrics, Uwajima City Hospital, Uwajima, Ehime, Japan
| | - Katsunori Tatara
- Division of Child Neurology, Shikoku Medical Center for Children and Adults, Zentsuji, Kagawa, Japan
| | - Kozue Kuwabara
- Division of Pediatrics, Ehime Prefectural Central Hospital, Matsuyama, Ehime, Japan
| | - Chiya Kikuchi
- Division of Pediatrics, National Hospital Organization Ehime Medical Center, Toon, Ehime, Japan
| | - Mitsumasa Fukuda
- Division of Pediatric Neurology, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Eiichi Ishii
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mariko Eguchi
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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Schutera M, Just S, Gierten J, Mikut R, Reischl M, Pylatiuk C. Machine Learning Methods for Automated Quantification of Ventricular Dimensions. Zebrafish 2019; 16:542-545. [PMID: 31536467 DOI: 10.1089/zeb.2019.1754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Medaka (Oryzias latipes) and zebrafish (Danio rerio) contribute substantially to our understanding of the genetic and molecular etiology of human cardiovascular diseases. In this context, the quantification of important cardiac functional parameters is fundamental. We have developed a framework that segments the ventricle of a medaka hatchling from image sequences and subsequently quantifies ventricular dimensions.
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Affiliation(s)
- Mark Schutera
- Institute for Automation and Applied Informatics (IAI), Karlsruhe Institute of Technology (KIT), Eggenstein, Germany
| | - Steffen Just
- Department of Internal Medicine II, University of Ulm, Ulm, Germany
| | - Jakob Gierten
- Department of Pediatric Cardiology, University Hospital Heidelberg, Heidelberg, Germany.,Centre for Organismal Studies Heidelberg, Heidelberg University, Heidelberg, Germany
| | - Ralf Mikut
- Institute for Automation and Applied Informatics (IAI), Karlsruhe Institute of Technology (KIT), Eggenstein, Germany
| | - Markus Reischl
- Institute for Automation and Applied Informatics (IAI), Karlsruhe Institute of Technology (KIT), Eggenstein, Germany
| | - Christian Pylatiuk
- Institute for Automation and Applied Informatics (IAI), Karlsruhe Institute of Technology (KIT), Eggenstein, Germany
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Visser LC, Ciccozzi MM, Sintov DJ, Sharpe AN. Echocardiographic quantitation of left heart size and function in 122 healthy dogs: A prospective study proposing reference intervals and assessing repeatability. J Vet Intern Med 2019; 33:1909-1920. [PMID: 31313382 PMCID: PMC6766555 DOI: 10.1111/jvim.15562] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022] Open
Abstract
Background Broadly applicable reference intervals (RIs) for measurements of left atrial (LA) and left ventricular (LV) size and function generated prospectively using statistically appropriate methods are limited. Objectives To generate body size‐independent RIs for linear, area, and volume measurements of LA size and LV size and function. Animals Healthy adult dogs (n = 122) of variable size and somatotype. Methods Prospective study. All dogs underwent an echocardiogram performed by the same examiner. Effects of body weight, sex, age, and heart rate were evaluated by regression and correlation analyses. Scaling exponents and prediction intervals were generated for linear measurements using the allometric equation. After normalization to body weight, 95% RIs were determined using nonparametric methods with 2.5 and 97.5 percentiles serving as the lower and upper limits (each with 90% confidence intervals), respectively. Results Linear LA and LV measurements were strongly correlated (R2 ≥ 0.79) with body weight. Scaling exponents were close to the expected 1/3 (0.299‐0.392). Prediction intervals for linear measurements of LV chamber size were considerably narrower than previously reported. Weak correlations (r = −0.42 to −0.50) among LV fractional shortening, fractional area change, and ejection fraction and body weight were identified. No other meaningful relationships were identified between the measurements and sex, age, and heart rate. Conclusions and Clinical Importance Body size‐independent RIs for several linear, area, and volume measurements of LA and LV size and function were generated prospectively from a large and diverse reference population and are available for clinical use.
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Affiliation(s)
- Lance C Visser
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Marisa M Ciccozzi
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Daniel J Sintov
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Ashley N Sharpe
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
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10
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DeVore GR, Klas B, Satou G, Sklansky M. Twenty-four Segment Transverse Ventricular Fractional Shortening: A New Technique to Evaluate Fetal Cardiac Function. J Ultrasound Med 2018; 37:1129-1141. [PMID: 29068072 DOI: 10.1002/jum.14455] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 07/29/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES Because of various fetal and maternal disease states, this study was conducted to evaluate the fractional shortening of 24 transverse segments distributed from the base to the apex of the ventricular chambers. METHODS Two hundred control fetuses were examined between 20 and 40 weeks' gestation. The transverse displacement of the ventricular endocardium during the cardiac cycle was computed by using offline software. From the output of the analysis, 24 end-diastolic and end-systolic segments were measured from the base (segment 1) to the apex (segment 24) of the right and left ventricles, and the fractional shortening was computed: [(end-diastolic length - end-systolic length)/end-diastolic length] × 100. Examples of fetal cardiovascular abnormalities were selected to demonstrate the utility of this technique. RESULTS The fractional shortening for each segment was independent of gestational age and fetal biometric measurements. There was no significant difference in fractional shortening for segments 1 to 5 between the right and left ventricles. However, the fractional shortening of the left ventricle was significantly greater (P < .0001) than that of the right ventricle for segments 6 to 24, suggesting that the mid and apical segments of the left ventricle have increased displacement toward the center of the chamber compared to the right ventricle. Fetuses with various cardiac structural abnormalities had abnormal fractional shortening values. CONCLUSIONS The fractional shortening of 24 segments of the right and left ventricles provides a comprehensive method to examine the contractility of the ventricular chambers.
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Affiliation(s)
- Greggory R DeVore
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Fetal Diagnostic Centers, Pasadena, Tarzana, and Lancaster, California, USA
| | - Berthold Klas
- Fetal Diagnostic Centers, Pasadena, Tarzana, and Lancaster, California, USA
| | - Gary Satou
- TomTec Imaging Systems GmbH, Munich, Germany
| | - Mark Sklansky
- Division of Pediatric Cardiology, Department of Pediatrics, Mattel Children's Hospital, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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11
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Möttönen MJ, Ukkola O, Lumme J, Kesäniemi YA, Huikuri HV, Perkiömäki JS. Cardiac Remodeling from Middle Age to Senescence. Front Physiol 2017; 8:341. [PMID: 28603501 PMCID: PMC5445175 DOI: 10.3389/fphys.2017.00341] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/09/2017] [Indexed: 01/19/2023] Open
Abstract
Background: The data on cardiac remodeling outside the scope of myocardial infarction and heart failure are limited. Methods: A cohort of middle-aged hypertensive subjects with age- and gender-matched control subjects without hypertension (n = 1,045, aged 51 ± 6 years) were randomly selected for the OPERA study (Oulu Project Elucidating Risk of Atherosclerosis study). The majority of those who were still alive after more than 20 years of follow-up underwent thorough re-examinations. Results: Left ventricular mass index (LVMI) increased significantly from 106.5 ± 27.1 (mean ± SD) to 114.6 ± 29.1 g/m2 (p < 0.001), the thickness of the left ventricular posterior wall (LVPW) from 10.0 ± 1.8 to 10.6 ± 1.7 mm (p < 0.001), fractional shortening (FS) from 35.0 ± 5.7 to 38.4 ± 7.2 % (p < 0.001), and left atrial diameter (LAD) from 38.8 ± 5.2 to 39.4 ± 6.7 mm (p = 0.028) during the 20-year follow-up. After multivariate adjustments, hypertension treated with antihypertensive medication and male gender predicted a smaller increase in the thickness of LVPW (p = 0.017 to <0.001). Baseline higher fasting plasma insulin level, larger intima media thickness of the carotid artery, greater height and antihypertensive medication (p = 0.046-0.002) predicted a smaller (less favorable) change of FS. The increase of LAD was associated with higher baseline diastolic blood pressure (p = 0.034) and greater height (p = 0.006). Conclusion: Aging from middle age to senescence increases the echocardiographic indexes of LVMI, LVPW thickness, FS and LAD. Several baseline factors are associated with these changes.
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Affiliation(s)
- Mikko J Möttönen
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
| | - Olavi Ukkola
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
| | - Jarmo Lumme
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
| | - Y Antero Kesäniemi
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
| | - Heikki V Huikuri
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
| | - Juha S Perkiömäki
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of OuluOulu, Finland
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12
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Pop IC, Grad O, Pall E, Pestean C, Mircean M, Mironiuc IA. The Relationship Between Left Ventricular Fractional Shortening and Intravenous Administration of Stem Cells in Laboratory Rabbits Presenting Chronic Myocardial Infarction. ACTA ACUST UNITED AC 2015; 88:28-32. [PMID: 26528044 PMCID: PMC4508605 DOI: 10.15386/cjmed-267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 11/23/2022]
Abstract
Background and aims The present study conducted from March 2012 to July 2013 aimed to evaluate from echocardiographic point of view the effects of peripheral intravenous administration of mesenchymal stem cells (MSCs) in laboratory rabbits presenting 30 days old chronic myocardial infarction. Material and methods 30 days after the induction of an acute myocardial infarction in 40 laboratory rabbits by direct ligation of the left anterior descending coronary artery at about 10 mm from the apex, we injected 1×106 MSCs in the auricular vein in a group of 30 rabbits, and a group of 10 rabbits were used as controls. 30 days after the injection of stem cells the left ventricular (LV) fractional shortening (FS) was evaluated by echocardiography and compared with the control rabbits. Results In control rabbits, echocardiography revealed akinesis of apex, interventricular septum kinetics was also impaired, FS being approximately 6%. In 80% (24 rabbits) of the injected rabbits the FS of the LV was significantly greater than in the witness group (26+/−2%, p<0.0001). At 13.3% (4 rabbits) of the injected rabbits the FS of the LV showed no improvement in comparison with the control group (6.5+/−1%). Conclusion An improvement of LV SF 30 days after MSCs were injected(p<0.0001) was noted. We have to further determine if this improvement of the LV function is correlated with any histopathological changes and if it is not lost in time. Also, further studies needs to evaluate if there is any significant change in the overall mortality.
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Affiliation(s)
- Ionel Ciprian Pop
- 2-nd Surgical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ovidiu Grad
- 2-nd Surgical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Emoke Pall
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Cosmin Pestean
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Mircea Mircean
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Ion Aurel Mironiuc
- 2-nd Surgical Clinic, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Ben-Amotz R, Bonagura J, Velayutham M, Hamlin R, Burns P, Adin C. Intraperitoneal bilirubin administration decreases infarct area in a rat coronary ischemia/reperfusion model. Front Physiol 2014; 5:53. [PMID: 24600401 PMCID: PMC3927123 DOI: 10.3389/fphys.2014.00053] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 01/27/2014] [Indexed: 01/12/2023] Open
Abstract
Bilirubin was previously considered a toxin byproduct of heme catabolism. However, a mounting body of evidence suggests that at physiological doses, bilirubin is a powerful antioxidant and anti-atherosclerotic agent. Recent clinical studies have shown that human beings with genetically-induced hyperbilirubinemia (Gilbert Syndrome) are protected against coronary heart disease. The purpose of this study was to investigate whether administration of exogenous bilirubin to normal rats would convey similar protective effects in an experimental model of coronary ischemia. We hypothesized that intraperitoneal bilirubin administration 1 h before injury would decrease infarct area and preserve left ventricular (LV) systolic function when compared to non-treated rats. Coronary ischemia was induced by temporary (30 min) ligation of the left anterior descending coronary artery in control or bilirubin treated rats, followed by a 1-h period of reperfusion. LV function was estimated by measurements of fractional shortening (FS) and fractional area shortening using echocardiography. LV function decreased in both experimental groups after ischemia and reperfusion, although in bilirubin-treated rats FS was less depressed during the period of ischemia (18.8 vs. 25.8%, p = 0.034). Infarct size was significantly reduced in the bilirubin treated group compared to the non-treated group (13.34 vs. 25.5%, p = 0.0067). Based on the results of this study, bilirubin supplementation appears to provide significant decrease in infarct size although protective effects on LV function were noted only during the period of ischemia. This result also suggests that lipid soluble antioxidant bilirubin prevents the oxidation of cardiolipin and decreases the infarct size in the heart during ischemia.
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Affiliation(s)
- Ron Ben-Amotz
- Department of Veterinary Clinical Sciences, The Ohio State University Columbus, OH, USA
| | - John Bonagura
- Department of Veterinary Clinical Sciences, The Ohio State University Columbus, OH, USA
| | - Murugesan Velayutham
- Department of Anesthesiology, Center for Biomedical EPR Spectroscopy and Imaging, Davis Heart and Lung Research Institute, The Ohio State University Columbus, OH, USA
| | - Robert Hamlin
- Department of Veterinary Clinical Sciences, The Ohio State University Columbus, OH, USA
| | - Patrick Burns
- Sciences Cliniques, Université de Montréal Montréal, QC, Canada
| | - Christopher Adin
- Department of Veterinary Clinical Sciences, The Ohio State University Columbus, OH, USA
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Kim H, Bae S, Kim Y, Cho CH, Kim SJ, Kim YJ, Lee SP, Kim HR, Hwang YI, Kang JS, Lee WJ. Vitamin C prevents stress-induced damage on the heart caused by the death of cardiomyocytes, through down-regulation of the excessive production of catecholamine, TNF-α, and ROS production in Gulo(-/-)Vit C-Insufficient mice. Free Radic Biol Med 2013; 65:573-583. [PMID: 23886864 DOI: 10.1016/j.freeradbiomed.2013.07.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/15/2013] [Accepted: 07/17/2013] [Indexed: 02/05/2023]
Abstract
It is thought that vitamin C has protective roles on stress-induced heart damage and the development of cardiovascular diseases, but its precise role and mechanisms are unclear. In the present study, we investigated the specific mechanisms by which vitamin C leads to protecting the heart from stress-induced damage in the Gulo(-/-) mice which cannot synthesize vitamin C like humans. By exposure to stress (1h/day), the heartbeat and cardiac output in vitamin C-insufficient Gulo(-/-) mice were definitely decreased, despite a significant increase of adrenaline (ADR) and noradrenaline (NA) production. A change of cardiac structure caused by the death of cardiomyocytes and an increased expression of matrix metalloprotease (MMP)-2 and -9 were also found. Moreover, lipid peroxidation and the production of tumor necrosis factor-alpha (TNF-α) in the heart were increased. Finally, all vitamin C-insufficient Gulo(-/-) mice were expired within 2 weeks. Interestingly, all of the findings in vitamin C-insufficient Gulo(-/-) mice were completely prevented by the supplementation of a sufficient amount of vitamin C. Taken together, vitamin C insufficiency increases the risk of stress-induced cardiac damage with structural and functional changes arising from the apoptosis of cardiomyocytes.
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Affiliation(s)
- Hyemin Kim
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Seyeon Bae
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Yejin Kim
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Chung-Hyun Cho
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Sung Joon Kim
- Department of Physiology, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea; Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Yong-Jin Kim
- Cardiovascular Center, Seoul National University Hospital, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Seung-Pyo Lee
- Cardiovascular Center, Seoul National University Hospital, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Hang-Rae Kim
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Young-Il Hwang
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea
| | - Jae Seung Kang
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea.
| | - Wang Jae Lee
- Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, Republic of Korea.
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15
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Sun X, Chen RC, Yang ZH, Sun GB, Wang M, Ma XJ, Yang LJ, Sun XB. Taxifolin prevents diabetic cardiomyopathy in vivo and in vitro by inhibition of oxidative stress and cell apoptosis. Food Chem Toxicol 2013; 63:221-32. [PMID: 24269735 DOI: 10.1016/j.fct.2013.11.013] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 11/05/2013] [Accepted: 11/11/2013] [Indexed: 12/18/2022]
Abstract
Diabetic cardiomyopathy has been increasingly recognized as an important cause of heart failure in diabetic patients. Excessive oxidative stress has been suggested to play a critical role in the development of diabetic cardiomyopathy. The objective of this study was to investigate the potential protective effects and mechanisms of taxifolin on cardiac function of streptozotocin-induced diabetic mice and on hyperglycemia-induced apoptosis of H9c2 cardiac myoblasts. In vivo study revealed that taxifolin improved diastolic dysfunction, ameliorated myocardium structure abnormality, inhibited myocyte apoptosis and enhanced endogenous antioxidant enzymes activities. Interestingly, taxifolin reduced angiotensin II level in myocardium, inhibited NADPH oxidase activity, and increased JAK/STAT3 activation. In vitro investigation demonstrated that taxifolin inhibited 33 mM glucoseinduced H9c2 cells apoptosis by decreasing intracellular ROS level. It also inhibited caspase-3 and caspase-9 activation, restored mitochondrial membrane potential, and regulated the expression of proteins related to the intrinsic pathway of apoptosis, thus inhibiting the release of cytochrome c from mitochondria into the cytoplasm. In conclusion, taxifolin exerted cardioprotective effects against diabetic cardiomyopathy by inhibiting oxidative stress and cardiac myocyte apoptosis and might be a potential agent in the treatment of diabetic cardiomyopathy.
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Affiliation(s)
- Xiao Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Rong-chang Chen
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhi-hong Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Gui-bo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Min Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiao-jun Ma
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Li-juan Yang
- Medical Functional Laboratory, Basic Medical Department, Beihua University, Jilin, China
| | - Xiao-bo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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16
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Oyabu J, Yamaguchi O, Hikoso S, Takeda T, Oka T, Murakawa T, Yasui H, Ueda H, Nakayama H, Taneike M, Omiya S, Shah AM, Nishida K, Otsu K. Autophagy-mediated degradation is necessary for regression of cardiac hypertrophy during ventricular unloading. Biochem Biophys Res Commun 2013; 441:787-92. [PMID: 24211573 DOI: 10.1016/j.bbrc.2013.10.135] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 10/25/2013] [Indexed: 11/22/2022]
Abstract
Cardiac hypertrophy occurs in response to a variety of stresses as a compensatory mechanism to maintain cardiac output and normalize wall stress. Prevention or regression of cardiac hypertrophy can be a major therapeutic target. Although regression of cardiac hypertrophy occurs after control of etiological factors, the molecular mechanisms remain to be clarified. In the present study, we investigated the role of autophagy in regression of cardiac hypertrophy. Wild-type mice showed cardiac hypertrophy after continuous infusion of angiotensin II for 14 days using osmotic minipumps, and regression of cardiac hypertrophy was observed 7 days after removal of the minipumps. Autophagy was induced during regression of cardiac hypertrophy, as evidenced by an increase in microtubule-associated protein 1 light chain 3 (LC3)-II protein level. Then, we subjected cardiac-specific Atg5-deficient (CKO) and control mice (CTL) to angiotensin II infusion for 14 days. CKO and CTL developed cardiac hypertrophy to a similar degree without contractile dysfunction. Seven days after removal of the minipumps, CKO showed significantly less regression of cardiac hypertrophy compared with CTL. Regression of pressure overload-induced cardiac hypertrophy after unloading was also attenuated in CKO. These results suggest that autophagy is necessary for regression of cardiac hypertrophy during unloading of neurohumoral and hemodynamic stress.
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17
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Taglieri DM, Johnson KR, Burmeister BT, Monasky MM, Spindler MJ, DeSantiago J, Banach K, Conklin BR, Carnegie GK. The C-terminus of the long AKAP13 isoform (AKAP-Lbc) is critical for development of compensatory cardiac hypertrophy. J Mol Cell Cardiol 2013; 66:27-40. [PMID: 24161911 DOI: 10.1016/j.yjmcc.2013.10.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 09/24/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022]
Abstract
The objective of this study was to determine the role of A-Kinase Anchoring Protein (AKAP)-Lbc in the development of heart failure, by investigating AKAP-Lbc-protein kinase D1 (PKD1) signaling in vivo in cardiac hypertrophy. Using a gene-trap mouse expressing a truncated version of AKAP-Lbc (due to disruption of the endogenous AKAP-Lbc gene), that abolishes PKD1 interaction with AKAP-Lbc (AKAP-Lbc-ΔPKD), we studied two mouse models of pathological hypertrophy: i) angiotensin (AT-II) and phenylephrine (PE) infusion and ii) transverse aortic constriction (TAC)-induced pressure overload. Our results indicate that AKAP-Lbc-ΔPKD mice exhibit an accelerated progression to cardiac dysfunction in response to AT-II/PE treatment and TAC. AKAP-Lbc-ΔPKD mice display attenuated compensatory cardiac hypertrophy, increased collagen deposition and apoptosis, compared to wild-type (WT) control littermates. Mechanistically, reduced levels of PKD1 activation are observed in AKAP-Lbc-ΔPKD mice compared to WT mice, resulting in diminished phosphorylation of histone deacetylase 5 (HDAC5) and decreased hypertrophic gene expression. This is consistent with a reduced compensatory hypertrophy phenotype leading to progression of heart failure in AKAP-Lbc-ΔPKD mice. Overall, our data demonstrates a critical in vivo role for AKAP-Lbc-PKD1 signaling in the development of compensatory hypertrophy to enhance cardiac performance in response to TAC-induced pressure overload and neurohumoral stimulation by AT-II/PE treatment.
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Affiliation(s)
- Domenico M Taglieri
- Department of Pharmacology, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Keven R Johnson
- Department of Pharmacology, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Brian T Burmeister
- Department of Pharmacology, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Michelle M Monasky
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA; Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Matthew J Spindler
- Gladstone Institute of Cardiovascular Disease, 1650 Owens Street, San Francisco, CA 94158, USA
| | - Jaime DeSantiago
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Kathrin Banach
- Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA
| | - Bruce R Conklin
- Gladstone Institute of Cardiovascular Disease, 1650 Owens Street, San Francisco, CA 94158, USA
| | - Graeme K Carnegie
- Department of Pharmacology, College of Medicine, University of Illinois at Chicago, Chicago, 60612 IL, USA.
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18
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Li Y, Zhang L, Jean-Charles PY, Nan C, Chen G, Tian J, Jin JP, Gelb IJ, Huang X. Dose-dependent diastolic dysfunction and early death in a mouse model with cardiac troponin mutations. J Mol Cell Cardiol 2013; 62:227-36. [PMID: 23810866 DOI: 10.1016/j.yjmcc.2013.06.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 05/24/2013] [Accepted: 06/13/2013] [Indexed: 11/28/2022]
Abstract
Our aim was to explore the dose-dependent diastolic dysfunction and the mechanisms of heart failure and early death in transgenic (TG) mice modeling human restrictive cardiomyopathy (RCM). The first RCM mouse model (cTnI(193His) mice) carrying cardiac troponin I (cTnI) R193H mutation (mouse cTnI R193H equals to human cTnI R192H) was generated several years ago in our laboratory. The RCM mice manifested a phenotype similar to that observed in RCM patients carrying the same cTnI mutation, i.e. enlarged atria and restricted ventricles. However, the causes of heart failure and early death observed in RCM mice remain unclear. In this study, we have produced RCM TG mice (cTnI(193His)-L, cTnI(193His)-M and cTnI(193His)-H) that express various levels of mutant cTnI in the heart. Histological examination and echocardiography were performed on these mice to monitor the time course of the disease development and heart failure. Our data demonstrate that cTnI mutation-caused diastolic dysfunction is dose-dependent. The key mechanism is myofibril hypersensitivity to Ca(2+) resulting in an impaired relaxation in the mutant cardiac myocytes. Prolonged relaxation time and delay of Ca(2+) decay observed in the mutant cardiac myocytes are correlated with the level of the mutant protein in the heart. Markedly enlarged atria due to the elevated end-diastolic pressure and myocardial ischemia are observed in the heart of the transgenic mice. In the mice with the highest level of the mutant protein, restricted ventricles and systolic dysfunction occur followed immediately by heart failure and early death. Diastolic dysfunction caused by R193H troponin I mutation is specific, showing a dose-dependent pattern. These mouse models are useful tools for the study of diastolic dysfunction. Impaired diastole can cause myocardial ischemia and fibrosis formation, resulting in the development of systolic dysfunction and heart failure with early death in the RCM mice with a high level of the mutant protein in the heart.
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Affiliation(s)
- Yuejin Li
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
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Klitsie LM, Roest AA, Kuipers IM, Van der Hulst AE, Hazekamp MG, Blom NA, Ten Harkel AD. Enhanced characterization of ventricular performance after coarctation repair in neonates and young children. Ann Thorac Surg. 2013;96:629-636. [PMID: 23806230 DOI: 10.1016/j.athoracsur.2013.04.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/16/2013] [Accepted: 04/22/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND Within the group of patients undergoing coarctectomy today, two subgroups can be identified: neonates with a critical coarctation and nonneonatal patients. We hypothesize that patients who have to undergo repair in the neonatal period will have more persistent impairment of ventricular performance postoperatively. Accordingly, we aimed to characterize biventricular performance after coarctectomy in neonatal and nonneonatal patients. METHODS Children (aged 0 to 17 years) undergoing a coarctectomy were prospectively included and classified as neonatal (<1 month old) or nonneonatal patients. Age-matched controls were included for each measurement occasion. To evaluate left (LV) and right ventricular (RV) performance, fractional shortening, peak systolic (S') and early diastolic (E') tissue Doppler imaging velocities, and E/E' were assessed preoperatively, at discharge, and 1 year postoperatively (11.4 ± 8.3 months). RESULTS In neonatal (n = 18) and nonneonatal (n = 19) patients LV performance significantly improved within the first postoperative year. Yet 1 year postoperatively, LV S' was still lower in neonatal patients vs controls (4.8 ± 1.1 vs 6.1 ± 1.6 cm/s; p = 0.036), whereas comparable results were observed in nonneonatal patients and controls. One year postoperatively, LV diastolic performance was impaired in neonatal (LV E' 8.7 ± 3.1 vs 13.2 ± 3.9 cm/s, p = 0.005) and nonneonatal patients (LV E' 12.1 ± 3.5 vs 15.1 ± 2.4 cm/s, p = 0.008) vs controls. In RV performance variables, no differences were observed 1 year postoperatively between neonatal and nonneonatal patients and controls. CONCLUSIONS In both subgroups, LV diastolic performance does not recover to normal values within the first postoperative year. However, LV systolic performance remains more persistently impaired in patients who have to undergo repair in the neonatal period vs nonneonatal repair.
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Huttner IG, Trivedi G, Jacoby A, Mann SA, Vandenberg JI, Fatkin D. A transgenic zebrafish model of a human cardiac sodium channel mutation exhibits bradycardia, conduction-system abnormalities and early death. J Mol Cell Cardiol 2013; 61:123-32. [PMID: 23791817 DOI: 10.1016/j.yjmcc.2013.06.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 06/05/2013] [Accepted: 06/11/2013] [Indexed: 12/11/2022]
Abstract
The recent exponential increase in human genetic studies due to the advances of next generation sequencing has generated unprecedented numbers of new gene variants. Determining which of these are causative of human disease is a major challenge. In-vitro studies and murine models have been used to study inherited cardiac arrhythmias but have several limitations. Zebrafish models provide an attractive alternative for modeling human heart disease due to similarities in cardiac electrophysiology and contraction, together with ease of genetic manipulation, external development and optical transparency. Although zebrafish cardiac mutants and morphants have been widely used to study loss and knockdown of zebrafish gene function, the phenotypic effects of human dominant-negative gene mutations expressed in transgenic zebrafish have not been evaluated. The aim of this study was to generate and characterize a transgenic zebrafish arrhythmia model harboring the pathogenic human cardiac sodium channel mutation SCN5A-D1275N, that has been robustly associated with a range of cardiac phenotypes, including conduction disease, sinus node dysfunction, atrial and ventricular arrhythmias, and dilated cardiomyopathy in humans and in mice. Stable transgenic fish with cardiac expression of human SCN5A were generated using Tol2-mediated transgenesis and cardiac phenotypes were analyzed using video microscopy and ECG. Here we show that transgenic zebrafish expressing the SCN5A-D1275N mutation, but not wild-type SCN5A, exhibit bradycardia, conduction-system abnormalities and premature death. We furthermore show that SCN5A-WT, and to a lesser degree SCN5A-D1275N, are able to compensate the loss of endogenous zebrafish cardiac sodium channels, indicating that the basic pathways, through which SCN5A acts, are conserved in teleosts. This proof-of-principle study suggests that zebrafish may be highly useful in vivo models to differentiate functional from benign human genetic variants in cardiac ion channel genes in a time- and cost-efficient manner. This article is part of a Special Issue entitled "Na(+) Regulation in Cardiac Myocytes".
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Affiliation(s)
- Inken G Huttner
- Molecular Cardiology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
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Kubo T, Kitaoka H, Yamanaka S, Hirota T, Baba Y, Hayashi K, Iiyama T, Kumagai N, Tanioka K, Yamasaki N, Matsumura Y, Furuno T, Sugiura T, Doi YL. Significance of high-sensitivity cardiac troponin T in hypertrophic cardiomyopathy. J Am Coll Cardiol 2013; 62:1252-1259. [PMID: 23623916 DOI: 10.1016/j.jacc.2013.03.055] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 03/19/2013] [Accepted: 03/20/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This study investigated the significance of the serum high-sensitivity cardiac troponin T (hs-cTnT) marker for prediction of adverse events in hypertrophic cardiomyopathy (HCM). BACKGROUND Although serum cardiac troponins as sensitive and specific markers of myocardial injury have become well-established diagnostic and prognostic markers in acute coronary syndrome, the usefulness of hs-cTnT for prediction of cardiovascular events in patients with HCM is unclear. METHODS We performed clinical evaluation, including measurements of hs-cTnT in 183 consecutive patients with HCM. RESULTS Of 183 HCM patients, 99 (54%) showed abnormal hs-cTnT values (>0.014 ng/ml). During a mean follow-up of 4.1 ± 2.0 years, 32 (32%) of the 99 patients in the abnormal hs-cTnT group, but only 6 (7%) of 84 patients with normal hs-cTnT values, experienced cardiovascular events: cardiovascular deaths, unplanned heart failure admissions, sustained ventricular tachycardia, embolic events, and progression to New York Heart Association functional class III or IV status (hazard ratio [HR]: 5.05, p < 0.001). Abnormal hs-cTnT value remained an independent predictor of these cardiovascular events after multivariate analysis (HR: 3.23, p = 0.012). Furthermore, in the abnormal hs-cTnT group, overall risk increased with an increase in hs-cTnT value (HR: 1.89/hs-cTnT 1 SD increase in the logarithmic scale, 95% confidence interval: 1.13 to 3.15; p = 0.015 [SD: 0.59]). CONCLUSIONS In patients with HCM, an abnormal serum concentration of hs-cTnT is an independent predictor of adverse outcome, and a higher degree of abnormality in hs-cTnT value is associated with a greater risk of cardiovascular events.
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Affiliation(s)
- Toru Kubo
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Hiroaki Kitaoka
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan.
| | - Shigeo Yamanaka
- Department of Laboratory Medicine, Kochi Medical School, Kochi, Japan
| | - Takayoshi Hirota
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Yuichi Baba
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Kayo Hayashi
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Tatsuo Iiyama
- Clinical Trial Center, Kochi Medical School, Kochi, Japan
| | - Naoko Kumagai
- Clinical Trial Center, Kochi Medical School, Kochi, Japan
| | - Katsutoshi Tanioka
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Naohito Yamasaki
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | | | - Takashi Furuno
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
| | - Tetsuro Sugiura
- Department of Laboratory Medicine, Kochi Medical School, Kochi, Japan
| | - Yoshinori L Doi
- Department of Medicine and Geriatrics, Kochi Medical School, Kochi, Japan
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Engel FB, Hsieh PCH, Lee RT, Keating MT. FGF1/p38 MAP kinase inhibitor therapy induces cardiomyocyte mitosis, reduces scarring, and rescues function after myocardial infarction. Proc Natl Acad Sci U S A 2006; 103:15546-51. [PMID: 17032753 PMCID: PMC1622860 DOI: 10.1073/pnas.0607382103] [Citation(s) in RCA: 295] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mammalian cardiomyocytes have limited proliferation potential, and acutely injured mammalian hearts do not regenerate adequately. Instead, injured myocardium develops fibrosis and scarring. Here we show that FGF1/p38 MAP kinase inhibitor treatment after acute myocardial injury in 8- to 10-week-old rats increases cardiomyocyte mitosis. At 3 months after injury, 4 weeks of FGF1/p38 MAP kinase inhibitor therapy results in reduced scarring and wall thinning, with markedly improved cardiac function. In contrast, p38 MAP kinase inhibition alone fails to rescue heart function despite increased cardiomyocyte mitosis. FGF1 improves angiogenesis, possibly contributing to the survival of newly generated cardiomyocytes. Our data indicate that FGF1 and p38 MAP kinase, proteins involved in cardiomyocyte proliferation and angiogenesis during development, may be delivered therapeutically to enhance cardiac regeneration.
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Affiliation(s)
- Felix B. Engel
- *Department of Pediatrics, Harvard Medical School, and Department of Cardiology, Children's Hospital, 320 Longwood Avenue, Boston, MA 02115
| | - Patrick C. H. Hsieh
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115; and
| | - Richard T. Lee
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115; and
| | - Mark T. Keating
- Novartis Institutes for BioMedical Research, Cambridge, MA 02139
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