Abstract:
BACKGROUND:Mechanical stress plays a crucial role in tissue morphogenesis and remodeling. These processes depend in part on force transmission mediated through integrins and the cytoskeleton. METHODS:Ventricular myocytes isolated from neonatal Sprague-Dawley rats (NRVMs) were exposed to persistent centrifugal force stretch for 12 or 24 h. The NRVMs were exposed to colchicine (4 micromol/ml) and anti-integrin beta1 specific antibody (10 microg/ml). Cell viability was assessed by MTT assay and lactate dehydrogenase (LDH) activity. Incorporation of 3H-leucine, and atrial natriuretic peptide (ANP) and angiotensin II (Ang II) levels were assessed. Pixel intensity and distribution of the microtubule were estimated from laser scanning confocal images. RESULTS:Changes in LDH release and the MTT assay showed that 180 rpm. centrifugal force had minimal effect on the viability and number of NRVMs. Mechanical stretch significantly increased 3H-leucine incorporation into cardiomyocytes. Anti-integrin beta1 blocking antibody effectively inhibited the increase in 3H-leucine incorporation and release of ANP (p < 0.05). Following anti-integrin-beta1-blocking antibody, the pixel intensity of the microtubule image was decreased after both12 and 24 h stretch, this was similar to the effect of colchicine. Both treatments also inhibited the secretion of Ang II induced by stretch (p < 0.05). CONCLUSIONS:Anti-integrin-beta1-blocking antibody and colchicine had similar effects, partly inhibiting the stretch-induced increase in microtubule polymerization and the secretion of Ang II in hypertrophic cardiac myocytes.
journal_name
Eur J Heart Failjournal_title
European journal of heart failureauthors
Yutao X,Geru W,Xiaojun B,Tao G,Aiqun Mdoi
10.1016/j.ejheart.2005.05.014keywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
16-22issue
1eissn
1388-9842issn
1879-0844pii
S1388-9842(05)00154-6journal_volume
8pub_type
杂志文章abstract:AIMS:A recent study suggested that no single echocardiographic index of cardiac dyssynchrony can reliably identify candidates for cardiac resynchronization therapy (CRT). We examined the value of three simple echocardiographic indices for predicting the 6-month clinical and echocardiographic responses to CRT. METHODS ...
journal_title:European journal of heart failure
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurjhf/hfq058
更新日期:2010-06-01 00:00:00
abstract:AIMS:Ventricular septal rupture (VSR) became a rare mechanical complication of myocardial infarction in the era of percutaneous coronary interventions but is associated with extreme mortality in patients who present with cardiogenic shock (CS). Promising outcomes have been reported with the use of circulatory support a...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.852
更新日期:2017-05-01 00:00:00
abstract::The ELITE-II, BEST and CHAMP Trials were reported for the first time at the American Heart Association in November 1999. These trials provide valuable new information to guide clinical practice in the management of heart failure and of myocardial infarction, although none mandate a major change from current clinical p...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/s1388-9842(00)00053-2
更新日期:2000-03-01 00:00:00
abstract::Galectins are a family of soluble beta-galactoside-binding lectins that play many important regulatory roles in inflammation, immunity, and cancer. Recently, a role for galectin-3 in the pathophysiology of heart failure (HF) has been suggested. Numerous studies have demonstrated the up-regulation of galectin-3 in hype...
journal_title:European journal of heart failure
pub_type: 杂志文章,评审
doi:10.1093/eurjhf/hfp097
更新日期:2009-09-01 00:00:00
abstract::In the present report we describe that NG-monomethyl-L-arginine acetate, a non-specific nitric oxide synthesis inhibitor, administered at 1 mg kg(-1) h(-1) to a patient with critical hypotension following mitral valve surgery combined with passive containment surgery, increased the urinary output and arterial blood pr...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2005.02.001
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVE:Infused C-type natriuretic peptide (CNP) was recently found to play a cardioprotective role in preventing myocardial ischaemia/reperfusion (I/R) injury and improving cardiac remodelling after myocardial infarction (MI) in rats. Our study aimed to investigate the effect of cardiomyocyte-specific CNP over-expre...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2007.02.006
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Plasma concentrations of atrial natriuretic peptides are correlated with atrial pressures, as are left ventricular ejection fraction and left ventricular filling abnormalities. AIMS:This study investigated the relation of atrial natriuretic peptides to both left ventricular systolic and diastolic function i...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/s1388-9842(98)00005-1
更新日期:1999-03-01 00:00:00
abstract:BACKGROUND:Limited comparative studies assessing the health-related quality of life (HRQL) in heart failure (HF) patients with preserved vs. low ejection fraction (LVEF) have been disparate. AIMS:The aims of this study were a) to characterize HRQL in a large population of HF patients with preserved and low LVEF and b)...
journal_title:European journal of heart failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejheart.2006.10.012
更新日期:2007-01-01 00:00:00
abstract:AIMS:It is unclear whether myocardial velocity or deformation indices of dyssynchrony are better at predicting response to cardiac resynchronization therapy (CRT). Therefore, two indices of left ventricular (LV) dyssynchrony based on myocardial velocity and deformation were compared to predict success of CRT. METHODS ...
journal_title:European journal of heart failure
pub_type: 杂志文章,多中心研究
doi:10.1093/eurjhf/hfp032
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:The relationship between quality of life (QoL) and survival have been poorly investigated. The aim of this study was to determine the value of QoL score as a prognostic factor in a prospective cohort of patients with advanced chronic heart failure (CHF). METHODS:QoL assessment was performed with a generic q...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/s1388-9842(02)00006-5
更新日期:2002-06-01 00:00:00
abstract::The European Society of Cardiology heart failure guidelines firmly recommend regular physical activity and structured exercise training (ET), but this recommendation is still poorly implemented in daily clinical practice outside specialized centres and in the real world of heart failure clinics. In reality, exercise i...
journal_title:European journal of heart failure
pub_type: 共识发展会议,杂志文章
doi:10.1093/eurjhf/hfr017
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Hospital management of CHF and predictors of hospital mortality remain unclear. METHODS:To address these issues, we analyzed the hospital admissions for CHF during 1996 in a large university hospital. Patients discharged with the principal diagnosis of CHF were considered eligible for the study. RESULTS:Am...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/s1388-9842(01)00204-5
更新日期:2002-01-01 00:00:00
abstract:AIMS:Randomized trials have shown that beta-blockers (BBs) reduce mortality in chronic heart failure (HF). Less data are available on the role of BBs in patients with acute HF, specifically if BBs should be continued or temporarily withdrawn. The aim of this study was to evaluate the role of BBs on in-hospital outcomes...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1093/eurjhf/hfn008
更新日期:2009-01-01 00:00:00
abstract:AIMS:In this randomized, double-blind clinical study, we investigated the relationship between autoantibodies against cardiac troponin I (cTnI) and disease severity in elderly congestive heart failure (CHF) patients before and after titration of beta-blocker therapy. METHODS AND RESULTS:Anti-cTnI, cTnI, and N-terminal...
journal_title:European journal of heart failure
pub_type: 杂志文章,随机对照试验
doi:10.1093/eurjhf/hfq088
更新日期:2010-07-01 00:00:00
abstract:AIMS:Undetected atrial fibrillation (AF) may be common in the heart failure with preserved ejection fraction (HFpEF) population, and failure to detect this may lead to the missing of opportunities to prevent associated subclinical cerebral infarctions (SCIs) and cognitive decline. METHODS AND RESULTS:We studied 1527 p...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.812
更新日期:2017-10-01 00:00:00
abstract:AIMS:This study aimed to determine the prognostic value of serum uric acid (SUA) on outcomes in heart failure (HF) with preserved ejection fraction (HFpEF), and whether sacubitril-valsartan reduces SUA and use of SUA-related therapies. METHODS AND RESULTS:We analysed 4795 participants from the Prospective Comparison o...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.1984
更新日期:2020-11-01 00:00:00
abstract:AIMS:Hemochromatosis is a condition in which iron loading impairs the function of many organs, including the heart. Congestive heart failure with left ventricular dilatation is commonly found in patients with hemochromatosis. Two missense mutations (C282Y and H63D) have been shown to be responsible for the majority of ...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2003.11.003
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:Cardiac resynchronization therapy (CRT) improves symptoms, left ventricular ejection fraction (LVEF) and survival in patients with heart failure and wide QRS, however, long term clinical outcome is unknown. AIMS:To identify predictors of mortality and evaluate the effects of CRT after long term follow-up. ...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2008.06.013
更新日期:2008-08-01 00:00:00
abstract::We investigated the hypothesis that increased intracellular [Na+]i in heart failure contributes to preservation of SR Ca2+ load which may become particularly evident at slow heart rates. [Na+]i in SBFI-loaded myocytes from rabbits with pacing-induced heart failure (PHF) was significantly higher at each frequency as co...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2006.01.013
更新日期:2006-11-01 00:00:00
abstract::Impaired cardiac function is frequently accompanied by peripheral vascular dysfunction and a pro-inflammatory condition, which may be associated with elevated levels of angiotensin II. We hypothesized that the magnitude of flow mediated dilatation (FMD) of the brachial artery of post myocardial infarction patients wil...
journal_title:European journal of heart failure
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ejheart.2005.10.011
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:In acute heart failure syndromes (AHFS), the prognostic value of left ventricular ejection fraction (LVEF), although widely accepted, has been recently challenged. In contrast, blood pressure is increasingly gaining ground over LVEF as predictor of mortality. Therefore, it is not clear whether both LVEF and ...
journal_title:European journal of heart failure
pub_type: 临床试验,杂志文章
doi:10.1016/j.ejheart.2007.06.001
更新日期:2007-09-01 00:00:00
abstract:AIMS:Peripheral muscle dysfunction is a key mechanism contributing to exercise intolerance (i.e. breathlessness and fatigue) in heart failure patients with preserved ejection fraction (HFpEF); however, the underlying molecular and cellular mechanisms remain unknown. We therefore used an animal model to elucidate potent...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.239
更新日期:2015-03-01 00:00:00
abstract::Cardiac resynchronization therapy (CRT) is one of the most effective therapies for heart failure with reduced ejection fraction and leads to improved quality of life, reductions in heart failure hospitalization rates and reduces all-cause mortality. Nevertheless, up to two-thirds of eligible patients are not referred ...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.2046
更新日期:2020-11-02 00:00:00
abstract::BNP is a marker of systolic left ventricular dysfunction (LVSD) and heart failure. To assess BNP for the detection of diastolic dysfunction in the general population, we examined 1678 subjects within an age- and sex-stratified survey (MONICA Augsburg). BNP was measured using a commercially available RIA (Shionogi). BN...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2004.12.010
更新日期:2005-06-01 00:00:00
abstract:AIMS:Leucocyte telomere length is considered a marker of biological ageing and has been suggested to be shorter in patients with CAD and heart failure compared with healthy controls. The aim of this study was to determine whether telomere length is associated with clinical outcomes in patients with ischaemic heart fail...
journal_title:European journal of heart failure
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ejhf.237
更新日期:2015-03-01 00:00:00
abstract:AIM:To investigate the role of MMP-2 and MMP-9 in cardiac remodelling induced by tobacco smoke exposure in rats. METHODS:Rats were allocated into two groups: C (n=9): control animals; ETS (n=9): exposed to tobacco smoke. After 4months, the animals underwent echocardiography, morphometric study and determination of MMP...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1016/j.ejheart.2007.09.004
更新日期:2007-11-01 00:00:00
abstract:AIMS:Liver X receptors (LXRs) transcriptionally regulate inflammation, metabolism, and immunity. Synthetic LXR agonists have been evaluated for their efficacy in the cardiovascular system; however, they elicit prolipogenic side effects which substantially limit their therapeutic use. AZ876 is a novel high-affinity LXR ...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.243
更新日期:2015-03-01 00:00:00
abstract:AIMS:Heart failure (HF) and chronic obstructive pulmonary disease (COPD) frequently co-exist, and each is a major public health issue. In a large cohort of hospitalized HF patients, we evaluated: (i) the impact of COPD on clinical outcomes; (ii) whether outcomes and treatments changed from 2002 to 2009; and (iii) the r...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.519
更新日期:2016-07-01 00:00:00
abstract:AIMS:Growth differentiation factor-15 (GDF-15) is associated with adverse prognosis in cardiovascular (CV) and non-CV diseases. We evaluated the association of GDF-15 with CV and non-CV outcomes in the PARADIGM-HF trial. METHODS AND RESULTS:In 1935 patients with heart failure and reduced ejection fraction (HFrEF) in P...
journal_title:European journal of heart failure
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ejhf.1301
更新日期:2018-12-01 00:00:00
abstract:AIMS:To determine the impact of internationally recognized criteria for the diagnosis of heart failure with preserved ejection fraction (HF-PEF) on the feasibility of recruitment into a HF-PEF trial. METHODS AND RESULTS:We reviewed the medical records of 5883 consecutive patients admitted with heart failure across eig...
journal_title:European journal of heart failure
pub_type: 杂志文章
doi:10.1002/ejhf.106
更新日期:2014-07-01 00:00:00