Abstract:
BACKGROUND:It has been reported that that the amount of 4-hydroxy-2-nonenal (HNE), which is a major lipid peroxidation product and a cytotoxic aldehyde, is increased in the human failing myocardium. This study was designed to determine whether HNE has a pro-oxidant effect in cardiac myocytes and whether HNE causes Ca(2+) overload. METHODS AND RESULTS:Exposure to HNE for 10 minutes in the presence of ferric nitrilotriacetate induced the production of hydroxyl radical (.OH) in the rat myocardium as assessed by electron spin resonance spectroscopy, and HNE induced the generation of reactive oxygen species (ROS) in a dose-dependent manner as assessed by 2', 7'-dichlorofluorescein diacetate fluorescence. HNE increased intracellular Ca(2+) concentration ([Ca(2+)](i)) as assessed by fura-2 ratio in a dose- and time-dependent manner. After 20 minutes of HNE (400 micromol/L) exposure, hypercontracture was induced in 67% of the cells. Catalase, an antioxidative enzyme that can decompose hydrogen peroxide (H(2)O(2)), significantly attenuated the increase in [Ca(2+)](i) and completely inhibited hypercontracture. Carvedilol, a beta-blocker with potent antioxidant activity, also significantly attenuated the increase in [Ca(2+)](i) and completely inhibited hypercontracture, but propranolol had no effect on either [Ca(2+)](i) increase or hypercontracture. CONCLUSIONS:HNE induces the formation of ROS, especially H(2)O(2) and .OH, in cardiomyocytes and subsequently ROS cause intracellular Ca(2+) overload. HNE formation may play an important role as a mediator of oxidative stress in heart failure.
journal_name
J Card Failjournal_title
Journal of cardiac failureauthors
Nakamura K,Miura D,Kusano KF,Fujimoto Y,Sumita-Yoshikawa W,Fuke S,Nishii N,Nagase S,Hata Y,Morita H,Matsubara H,Ohe T,Ito Hdoi
10.1016/j.cardfail.2009.04.008subject
Has Abstractpub_date
2009-10-01 00:00:00pages
709-16issue
8eissn
1071-9164issn
1532-8414pii
S1071-9164(09)00138-9journal_volume
15pub_type
杂志文章abstract:BACKGROUND:Fluid overload is common in heart failure (HF) and obesity; however, the relationship between the extent of intravascular volume expansion and indices such as body mass index (BMI) in obese and non-obese patients with HF has not been defined to address the issue of a HF obesity phenotype. METHODS:Total bloo...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:The clinical consequences of prehospital delay in heart failure (HF) patients are unknown. This study explores the relationship between prehospital delay of HF patients and length of hospital stay, plasma values of brain natriuretic peptides (BNP) as well as the association of delay with all-cause mortality,...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cardfail.2011.12.007
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:Some controlled clinical trials showed a beneficial effect of beta-blockers on symptoms, exercise tolerance, and left ventricular function in dilated cardiomyopathy. The purpose of this study was to investigate if there are clinical variables at baseline that could predict a favorable response to long-term m...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/s1071-9164(96)80027-3
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:Chronic heart failure is a disease syndrome characterized in its advanced stages by a poor quality of life, frequent hospitalizations, and a high risk of mortality. In advanced and ultra-advanced chronic heart failure, many treatment options, such as cardiac transplantation and mechanical devices, are severe...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2005.10.013
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Cardiac resynchronization therapy (CRT) induces structural and electrical remodeling (ER) in heart failure (HF) patients. Our aim was to assess time course of ER of native conduction and mechanical remodeling after CRT and impact of CRT-induced ER on clinical outcome. METHODS AND RESULTS:We prospectively in...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2016.10.014
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Coronary angiography (CA) is usually performed in patients with reduced left ventricular ejection fraction (LVEF) to search ischemic cardiomyopathy. Our aim was to examine the agreement between CA and cardiovascular magnetic resonance (CMR) imaging among a cohort of patients with unexplained reduced LVEF, an...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2020.09.005
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:We examined the accuracy of Medicare heart failure (HF) diagnostic codes in the identification of acute decompensated (ADHF and chronic stable (CSHF) HF. METHODS AND RESULTS:Hospitalizations were identified from medical discharge records for Atherosclerosis Risk in Communities (ARIC) study participants with...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2015.07.013
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Drug-related negative outcomes (DNOs) are health problems that patients experience due to drug use or nonuse. Heart failure (HF) patients are at high risk of experiencing DNOs owing to polypharmacy, comorbidities, and age. METHODS AND RESULTS:Ninety-seven consecutive HF patients were enrolled and followed f...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2010.10.009
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Coronary artery disease is the most common cause of heart failure (HF) in developed countries. The aim of this study was to elucidate the mechanisms of reduction of arrhythmias after sacubitril/valsartan (LCZ696) therapy in a myocardial infarction (MI)-HF rabbit model. METHODS AND RESULTS:Chronic MI in rabb...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2020.03.007
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:There have been no published recommendations about staffing needs for a heart failure (HF) clinic or an office setting focused on heart transplant. The goal of this survey was to understand the current staffing environment of HF, transplant, and mechanical circulatory support device (MCSD) programs in the Un...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cardfail.2011.04.001
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:Left ventricular remodeling after myocardial infarction is a key component of heart failure and it has long been postulated that it may result from increased wall stress. It has recently been suggested that an injectable, non-degradable polymer may limit pathological remodeling in a manner analogous to that ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2009.03.003
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Cardiac resynchronization therapy (CRT) is now an established therapy for patients with advanced heart failure with electromechanical delay, although nonresponders have been observed. Because natriuretic peptides are relevant markers to reflect the severity of heart failure and filling pressure of cardiac ch...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2005.04.007
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Diabetes mellitus (DM) is a risk factor for mortality among patients with heart failure as well as for patients who undergo cardiothoracic surgery. However it is unknown whether DM is associated with increased mortality or major complications during continuous-flow left ventricular assist device (CF-LVAD) su...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2016.02.010
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Clinical multistage risk assessment associated with electrocardiogram (ECG) and NT-proBNP may be a feasible strategy to screen hypertrophic cardiomyopathy (HCM). We investigated the effectiveness of a screening based on ECG and NT-proBNP in first-degree relatives of patients with HCM. METHODS AND RESULTS:A ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2012.04.005
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Increased serum leptin concentration has been linked to increased ventilation in patients with mild heart failure (HF). However, in animal models the absence of leptin has also been associated with increased ventilation. This study evaluated the relationship of circulating leptin concentration with exercise ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2013.10.004
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Although substantial effort has been devoted to reducing readmissions among heart failure (HF) patients, little is known about factors identified by patients and caregivers that may contribute to readmissions. The goal of this study was to compare the perspectives of HF patients, their caregivers, and their ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2015.10.011
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:A link between diabetes mellitus (DM) and heart failure (HF) has been well-recognized for more than a century. HF is also closely linked to abnormal glucose regulation (AGR) and insulin resistance (IR) in patients without DM and, similarly, these conditions commonly coexist. In epidemiological studies, each ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,评审
doi:10.1016/j.cardfail.2010.05.027
更新日期:2010-09-01 00:00:00
abstract:BACKGROUND:Decoupling between diastolic pulmonary arterial pressure (dPAP) and pulmonary arterial wedge pressure (PAWP) is an index of pulmonary vasculature remodeling and provides prognostic information. Furthermore, decoupling may change during incremental left ventricular assist device (LVAD) speed changes. METHODS...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2018.08.003
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Epidemiological studies typically diagnose heart failure (HF) at the time of hospitalization, and have not evaluated the prevalence of HF symptoms in CKD patients without a prior HF diagnosis. METHODS AND RESULTS:We modified the Kansas City Cardiomyopathy Questionnaire (KCCQ) to detect and quantify symptoms...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2010.08.009
更新日期:2011-01-01 00:00:00
abstract::Stimulation of the V1a receptor for arginine vasopressin produces myocardial and vascular effects similar to those of angiotensin II while stimulation of the V2 receptor causes fluid retention. There are no data with sustained blockade of the V1a receptor while single-dose experiments suggest benefit. Acute and chroni...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,评审
doi:10.1016/j.cardfail.2017.12.011
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:This is the first study to examine the effect of acute (24-hour) beta-blocker withholding on ventilatory efficiency in patients with advanced chronic heart failure (CHF) during maximal incremental treadmill cardiopulmonary exercise test. METHODS AND RESULTS:Seventeen CHF patients were studied either 3 hours...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cardfail.2010.02.006
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:In chronic heart failure (HF), diuretic doses increase as the disease progresses, often after hospitalization for instability, and have been associated with worsening renal function and increased mortality. METHODS AND RESULTS:A prospective observational analysis of 183 patients in an advanced HF clinic stra...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2008.01.015
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Although fibrosis seems to be prognostic for adverse outcomes in adults with idiopathic dilated cardiomyopathy (IDC), little is known about the prevalence and development of fibrosis in pediatric IDC hearts. We hypothesized that there is less activation of fibrosis at a molecular level in pediatric IDC heart...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2016.11.006
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Enzyme replacement therapy (ERT) for infantile-onset Pompe disease effectively reduces the left ventricular (LV) mass. This study sought to explore detailed process of LV reverse remodeling after ERT with the use of tissue Doppler and stain rate imaging. METHODS AND RESULTS:Nine infants and children with Po...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2011.07.011
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:We sought to determine the rates and predictors of dietary sodium restriction and to evaluate the reliability of 24-hour urine collection as a tool to estimate dietary sodium intake in heart failure (HF) patients. METHODS AND RESULTS:We evaluated the 24-hour urinary sodium excretion of 305 outpatients with ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cardfail.2014.12.016
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Acute dyspnea poses a diagnostic challenge for physicians, and the current methods in differentiating cardiac from non-cardiac causes have been limited to date. Recently, the brain natriuretic peptide (BNP) rapid test has been validated in the emergency room. Nevertheless, the early accumulation of fluid in ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2008.04.005
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:Reduced physical activity (PA) may be one factor that contributes to cognitive decline and dementia in heart failure (HF). Yet, the longitudinal relationship between PA and cognition in HF is poorly understood owing to limitations of past work, including single-time assessments of PA. This is the first study...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cardfail.2014.12.010
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Endothelin-1 (ET-1) is a potent vasoconstrictor peptide elaborated by many cell types. Plasma ET-1 levels are significantly augmented in patients and experimental animals with heart failure. Enhanced levels of ET-1 may contribute to myocardial depression and alterations in sympathetic nerve activity in the s...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/s1071-9164(00)00012-9
更新日期:2000-03-01 00:00:00
abstract:BACKGROUND:Genetic heterogeneity at the endothelial nitric oxide synthase (NOS3) locus influences heart failure outcomes. The prevalence of NOS3 variants differs in black and white cohorts, but the impact of these differences is unknown. METHODS AND RESULTS:Subjects (n = 352) in the Genetic Risk Assessment of Heart Fa...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cardfail.2008.10.028
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:To determine the feasibility of peripheral intravenous volume analysis (PIVA) of venous waveforms for assessing volume overload in patients admitted to the hospital with acute decompensated heart failure (ADHF). METHODS:Venous waveforms were captured from a peripheral intravenous catheter in subjects admitt...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2018.05.003
更新日期:2018-08-01 00:00:00