Abstract:
BACKGROUND:β1-2-adrenergic receptors (AR) are key regulators of cardiac contractility and remodeling in response to catecholamines. β3-AR expression is enhanced in diseased human myocardium, but its impact on remodeling is unknown. METHODS AND RESULTS:Mice with cardiac myocyte-specific expression of human β3-AR (β3-TG) and wild-type (WT) littermates were used to compare myocardial remodeling in response to isoproterenol (Iso) or Angiotensin II (Ang II). β3-TG and WT had similar morphometric and hemodynamic parameters at baseline. β3-AR colocalized with caveolin-3, endothelial nitric oxide synthase (NOS) and neuronal NOS in adult transgenic myocytes, which constitutively produced more cyclic GMP, detected with a new transgenic FRET sensor. Iso and Ang II produced hypertrophy and fibrosis in WT mice, but not in β3-TG mice, which also had less re-expression of fetal genes and transforming growth factor β1. Protection from Iso-induced hypertrophy was reversed by nonspecific NOS inhibition at low dose Iso, and by preferential neuronal NOS inhibition at high-dose Iso. Adenoviral overexpression of β3-AR in isolated cardiac myocytes also increased NO production and attenuated hypertrophy to Iso and phenylephrine. Hypertrophy was restored on NOS or protein kinase G inhibition. Mechanistically, β3-AR overexpression inhibited phenylephrine-induced nuclear factor of activated T-cell activation. CONCLUSIONS:Cardiac-specific overexpression of β3-AR does not affect cardiac morphology at baseline but inhibits the hypertrophic response to neurohormonal stimulation in vivo and in vitro, through a NOS-mediated mechanism. Activation of the cardiac β3-AR pathway may provide future therapeutic avenues for the modulation of hypertrophic remodeling.
journal_name
Circulationjournal_title
Circulationauthors
Belge C,Hammond J,Dubois-Deruy E,Manoury B,Hamelet J,Beauloye C,Markl A,Pouleur AC,Bertrand L,Esfahani H,Jnaoui K,Götz KR,Nikolaev VO,Vanderper A,Herijgers P,Lobysheva I,Iaccarino G,Hilfiker-Kleiner D,Tavernier G,Ladoi
10.1161/CIRCULATIONAHA.113.004940subject
Has Abstractpub_date
2014-01-28 00:00:00pages
451-62issue
4eissn
0009-7322issn
1524-4539pii
CIRCULATIONAHA.113.004940journal_volume
129pub_type
杂志文章相关文献
CIRCULATION文献大全abstract:BACKGROUND:Patients with diabetes mellitus (DM) are at high risk of developing congestive heart failure (CHF). However, the relationships between glucose levels and CHF in people with or without a history of DM have not been well characterized. METHODS AND RESULTS:We evaluated the associations between fasting plasma g...
journal_title:Circulation
pub_type: 杂志文章,随机对照试验
doi:10.1161/CIRCULATIONAHA.106.661405
更新日期:2007-03-20 00:00:00
abstract::The purpose of this study was to develop a clinically applicable system for quantifying premortem myocardial area at risk. Coronary artery occlusion was performed in 18 closed-chest dogs (11 left anterior descending and seven circumflex). 99mTc (15 mCi)-labeled macroaggregated albumin was then injected through an angi...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.73.3.551
更新日期:1986-03-01 00:00:00
abstract::End-systolic pressure (PES), volume (VES), wall tension (TES) and circumference (CES) of the human left ventricle were studied at cardiac catheterization in 24 subjects with varying degrees of left ventricular dysfunction. Acute alterations in systolic load consistently resulted in changes in VES and CES, with a small...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.56.5.845
更新日期:1977-11-01 00:00:00
abstract:BACKGROUND:Age is a predictor of cognitive dysfunction after cardiac surgery, but the mechanism is unknown. The purpose of our study was to determine whether age-related decrements in cognition are associated with cerebral blood flow (CBF) autoregulation during cardiopulmonary bypass (CPB). METHODS AND RESULTS:Cogniti...
journal_title:Circulation
pub_type: 临床试验,杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract::Twenty-one patients with documented coronary atherosclerotic heart disease were studied to determine the effect of high dose oral isosorbide dinitrate (ISDN) on heart rate, blood pressure, and exercise time until angina pectoris. Patients were tested in two phases, initially with 0.4 mg of sublingual nitroglycerin and...
journal_title:Circulation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1161/01.cir.55.2.381
更新日期:1977-02-01 00:00:00
abstract:BACKGROUND:Many patients with implanted cardioverter defibrillators (ICDs) receive adjunctive antiarrhythmic drug therapy, most commonly amiodarone or sotalol. The effects of these drugs on defibrillation energy requirements have not been previously assessed in a randomized controlled trial. METHODS AND RESULTS:The Op...
journal_title:Circulation
pub_type: 杂志文章,随机对照试验
doi:10.1161/CIRCULATIONAHA.106.618421
更新日期:2006-07-11 00:00:00
abstract::Genetic analysis can be performed to identify the molecular substrate of inherited arrhythmogenic diseases; however, the role of this information in helping the management of patients is still debated. Here, we support the view that the practical value of genetic analysis is different in the various inherited conditio...
journal_title:Circulation
pub_type: 杂志文章,评审
doi:10.1161/CIRCULATIONAHA.105.563205
更新日期:2006-02-28 00:00:00
abstract:BACKGROUND:Two phase III trials of enoxaparin for unstable angina/non-Q-wave myocardial infarction have shown it to be superior to unfractionated heparin for preventing a composite of death and cardiac ischemic events. A prospectively planned meta-analysis was performed to provide a more precise estimate of the effects...
journal_title:Circulation
pub_type: 临床试验,杂志文章,meta分析,多中心研究
doi:10.1161/01.cir.100.15.1602
更新日期:1999-10-12 00:00:00
abstract:BACKGROUND:-Recent studies have suggested that testosterone has a protective effect in the arterial vascular system. However, little is known about the molecular aspects of the mechanism(s) involved in these processes. The aim of the present study was to investigate the effect of testosterone on neointimal plaque devel...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.103.10.1382
更新日期:2001-03-13 00:00:00
abstract:BACKGROUND:Extrahepatic tissues have long been considered critical contributors of cholesterol to nascent HDL particles in the reverse cholesterol transport pathway, in which ABCA1 plays the crucial role. Recent studies, however, including both overexpression and deletion of ABCA1 selectively in the liver, have highlig...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.106.621433
更新日期:2006-09-19 00:00:00
abstract:BACKGROUND:The purpose of this study was to define the degree of intrinsic tone in conductance and resistance vessels, to define the calcium dependency of intrinsic tone in these vascular preparations, and to investigate the efficacy of vasodilatory agents on the level of intrinsic tone in these vascular preparations. ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.94.5.1083
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Atherosclerosis is associated with immune responses to oxidized lipoproteins and certain microorganisms, but the role of specific immunity has remained unclear. METHODS AND RESULTS:To study the role of immunity in atherosclerosis, we crossed atherosclerosis-prone apoE(-/-) mice with immunodeficient scid/sci...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.102.24.2919
更新日期:2000-12-12 00:00:00
abstract:BACKGROUND:The antiarrhythmic drugs quinidine and verapamil are known to block alpha1-adrenoceptors (alpha1ARs). Alpha1ARs are a heterogeneous family of three subtypes (alpha1A, alpha1B, and alpha1D), and little is known about the effects of quinidine and verapamil on the different human alpha1AR subtypes. METHODS AND...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.97.13.1227
更新日期:1998-04-07 00:00:00
abstract:BACKGROUND:Symptomatic prolonged sinus pauses on termination of atrial fibrillation (AF) are an indication for pacemaker implantation. We evaluated sinus node function and clinical outcome in patients with prolonged sinus pauses on termination of arrhythmia who underwent ablation of paroxysmal AF. METHODS AND RESULTS:...
journal_title:Circulation
pub_type: 临床试验,杂志文章
doi:10.1161/01.CIR.0000090685.13169.07
更新日期:2003-09-09 00:00:00
abstract::Identification of regional myocardial ischemia by TQ-ST segment mapping, while commonly used, is relatively imprecise and nonspecific. In 41 open-chest dogs we examined whether monophasic action potentials (MAPs) recorded from the myocardial surface by means of a new contact-electrode technique could be used to more p...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.69.3.593
更新日期:1984-03-01 00:00:00
abstract:BACKGROUND:Paraplegia remains a devastating complication of thoracic aortic surgery. The mechanism of the antecedent spinal cord ischemia and reperfusion injury (IR) remains poorly described. IR involves 2 injuries, an initial ischemic insult and subsequent inflammatory amplification of the injury. This mechanism is co...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.111.080275
更新日期:2012-09-11 00:00:00
abstract:BACKGROUND:Five years ago, we described a specific ECG pattern of right bundle-branch block and ST-segment elevation in leads V1 through V3 associated with sudden death in patients without demonstrable structural heart disease. Information on long-term outcome has become available due to pooled data on a large cohort o...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.97.5.457
更新日期:1998-02-10 00:00:00
abstract:BACKGROUND:Weight loss in obese insulin-resistant but not in insulin-sensitive persons reduces coronary heart disease risk. To what extent changes in gene expression are related to atherosclerosis and cardiovascular function is unknown. METHODS AND RESULTS:We studied the effect of diet restriction-induced weight loss ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.CIR.0000147614.85888.7A
更新日期:2004-11-16 00:00:00
abstract:BACKGROUND:Optimal management of acute pulmonary embolism (PE) requires medical expertise, diagnostic testing, and therapies that may not be available consistently throughout the entire week. We sought to assess whether associations exist between weekday or weekend admission and mortality and length of hospital stay fo...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.108.824292
更新日期:2009-02-24 00:00:00
abstract:BACKGROUND:AL amyloidosis with heart failure is associated with decreased longitudinal myocardial contraction measured by pulsed tissue Doppler imaging. We sought to clarify whether new modalities of myocardial strain Doppler (change in length per unit length) or strain rate (the temporal derivative of strain) were mor...
journal_title:Circulation
pub_type: 临床试验,杂志文章
doi:10.1161/01.CIR.0000068313.67758.4F
更新日期:2003-05-20 00:00:00
abstract::The purpose of this investigation was to determine whether blood vessels could develop de novo between an extracardiac artery and a collateral-dependent zone of the heart and to quantify the nutritive blood flow afforded by the new vessels. We also adapted the preparation so that angiogenically active agents could be ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.82.4.1449
更新日期:1990-10-01 00:00:00
abstract:BACKGROUND:A role for myeloperoxidase (MPO) as a mediator of coronary artery disease and acute coronary syndromes has recently received considerable attention. Although active MPO and hypochlorite-modified proteins and peptides have been detected in human atherosclerotic lesions, detection of novel chlorinated oxidized...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.CIR.0000104564.01539.6A
更新日期:2003-12-23 00:00:00
abstract:BACKGROUND:The long-term success of coronary bypass surgery is dependent on graft patency after surgery. This trial was designed to determine if aspirin improved saphenous vein graft or internal mammary artery (IMA) graft patency between 1 and 3 years after coronary artery bypass grafting (CABG). METHODS AND RESULTS:A...
journal_title:Circulation
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1161/01.cir.89.3.1138
更新日期:1994-03-01 00:00:00
abstract:BACKGROUND:A variable degree of smooth muscle cell (SMC) proliferation after balloon injury has been reported in previous rat studies. It is unknown whether balloon injury induces c-fos expression and whether it is related to the degree of vascular injury in vivo. Therefore, we tested the hypothesis that proportional i...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.92.5.1230
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:Chronic, complete AV block (CAVB) in the dog leads to ventricular hypertrophy, which has been described as an independent risk factor for arrhythmias. In this model, we examined (1) whether the short- and long-term electrical adaptations predispose to acquired torsade de pointes arrhythmias (TdP) and (2) the...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.98.11.1125
更新日期:1998-09-15 00:00:00
abstract::In 526 patients undergoing a first percutaneous transluminal coronary angioplasty (PTCA) of a single native vessel, we studied the influence of length and eccentricity of the lesion on complications and primary success. Long stenoses (greater than or equal to 5 mm, n = 153) did not differ from short stenoses (less tha...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.67.3.497
更新日期:1983-03-01 00:00:00
abstract::To determine whether calcium channel blockers influence the progression of coronary atherosclerosis, 383 patients age 65 years or less with 5-75% stenoses in at least four coronary artery segments were selected at random within 1 month of coronary arteriography to participate in double-blind therapy with a placebo or ...
journal_title:Circulation
pub_type: 临床试验,杂志文章
doi:10.1161/01.cir.82.6.1940
更新日期:1990-12-01 00:00:00
abstract:BACKGROUND:Doxycycline has been shown to effectively inhibit aneurysm formation in animal models of abdominal aortic aneurysm. Although this effect is ascribed to matrix metalloproteinase-9 inhibition, such an effect is unclear in human studies. We reevaluated the effect of doxycycline on aortic wall protease content i...
journal_title:Circulation
pub_type: 杂志文章,随机对照试验
doi:10.1161/CIRCULATIONAHA.108.806505
更新日期:2009-04-28 00:00:00
abstract::This two-part article provides an overview of the global burden of atherothrombotic cardiovascular disease. Part I initially discusses the epidemiologic transition which has resulted in a decrease in deaths in childhood due to infections, with a concomitant increase in cardiovascular and other chronic diseases; and th...
journal_title:Circulation
pub_type: 杂志文章,评审
doi:10.1161/hc4601.099487
更新日期:2001-11-27 00:00:00
abstract::Knowledge of the potential gradient field created by defibrillation electrodes is important for the understanding and improvement of defibrillation. To obtain this knowledge by direct measurements, potentials were recorded from 60 epicardial, eight septal, and 36 right ventricular transmural electrodes in six open-che...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.74.3.626
更新日期:1986-09-01 00:00:00