Abstract:
:The alterations of the beta-adrenoceptor adenylyl cyclase are reviewed. In failing myocardium, the down-regulation of beta 1-adrenoceptors is accompanied by a decrease in steady state mRNA levels, as studied with quantitative polymerase chain reactions in dilated and ischaemic cardiomyopathy. The density of beta 2-adrenoceptors and beta 2-adrenoceptor mRNA was unchanged in both pathological conditions compared to non-failing myocardium. In addition to down-regulation of beta 1-receptor protein and mRNA, an increased activity of the beta-adrenoceptor kinase (beta-ARK) was observed. Correspondingly, quantification of beta-ARK mRNA by a 5' and a middle portion PCR-product suggests that increased enzyme activity could be due to increased transcription. In summary, decreased steady state levels of beta 1-adrenoceptor mRNA could contribute to reduced beta-adrenoceptor density in failing myocardium. The known uncoupling of beta-adrenoceptors could be due to an increased mRNA expression and activity of beta-ARK.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Böhm M,Lohse MJdoi
10.1093/eurheartj/15.suppl_d.30subject
Has Abstractpub_date
1994-12-01 00:00:00pages
30-4eissn
0195-668Xissn
1522-9645journal_volume
15 Suppl Dpub_type
杂志文章,评审abstract::Supraventricular tachycardia is due to altered automaticity, triggered activity or most commonly, reentry. Atrial flutter is most frequently due to reentry with counterclockwise activation in the right atrium with the left atrium acting as a bystander. The small wavefronts demonstrated during atrial fibrillation are l...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/14.suppl_e.2
更新日期:1993-09-01 00:00:00
abstract::Liaison with two important scientific societies in the field of hypertension improves contact with readers. ...
journal_title:European heart journal
pub_type: 新闻
doi:
更新日期:2012-05-01 00:00:00
abstract:AIMS:The aim of this study involves the early identification, among apparently healthy individuals, of those at high risk for sudden cardiac death. We tested the hypothesis that individuals who respond to mild mental stress in preparation for exercise test with the largest heart rate increases might be at highest risk....
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehp160
更新日期:2009-07-01 00:00:00
abstract::The present review discusses the prognostic significance of post-infarction angina pectoris, and the significance of post-infarction intervention with verapamil on the prevalence of post-infarction ischaemia and prognosis. Angina pectoris during the first month after acute myocardial infarction (AMI) was found to be a...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/16.suppl_h.13
更新日期:1995-08-01 00:00:00
abstract::The prevalence of left ventricular (LV) thrombosis and incidence of arterial embolism after acute anterior myocardial infarction (AAMI) treated with streptokinase 1.5 x 10(6) IU intravenously was studied in 136 patients enrolled consecutively in five cardiological centres. Adjunctive antithrombotic therapy was adminis...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1093/eurheartj/14.11.1489
更新日期:1993-11-01 00:00:00
abstract:OBJECTIVES:The primary objectives of this study were to assess the feasibility of temperature-controlled radiofrequency catheter ablation of left and right sided manifest accessory pathways in patients with Wolff-Parkinson-White syndrome and to gain more insights into biophysical aspects of temperature-controlled cathe...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a014878
更新日期:1996-03-01 00:00:00
abstract:AIMS:To test the hypothesis that increasing age in patients presenting with high-risk non-ST-segment elevation acute coronary syndromes (NSTE-ACS) does not adversely influence the benefit of an early invasive strategy on major adverse events at 6 months. METHODS AND RESULTS:We report clinical outcomes in young (<70), ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehn124
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Polymorphisms within renin angiotensin system genes have been investigated as risk factors for coronary artery disease in different populations with contradicting results. The aim of this study was to investigate the genotype distribution and the allele frequencies of ACE, AT1R and AGT gene polymorphisms as ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1999.1738
更新日期:2000-04-01 00:00:00
abstract:AIMS:Habitual cigarette smokers, paradoxically, present improved short-term prognosis after acute myocardial infarction, a phenomenon often termed "smoker's paradox". We sought to examine cigarette smokers' post-infarction survival advantage in a countrywide survey of unselected, consecutive patients presenting with ac...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2000.2315
更新日期:2001-05-01 00:00:00
abstract:AIM:Lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) has been suggested as an independent predictor of cardiovascular events in epidemiological studies. We sought to evaluate Lp-PLA(2) as a risk factor for future cardiovascular events in patients with acute coronary syndromes (ACS) and to elucidate the relationshi...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/eurheartj/ehl565
更新日期:2007-03-01 00:00:00
abstract:AIMS:LV reverse remodelling has been shown to be a favourable response after cardiac resynchronization therapy (CRT) in many clinical trials. This study investigated whether left ventricular (LV) reverse remodelling after CRT has any structural benefit, which include the improvement of LV mass or regional wall thicknes...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi885
更新日期:2006-06-01 00:00:00
abstract::Twelve patients with the long QT syndrome were studied to determine the usefulness of 123I-metaiodobenzylguanidine (MIBG) single-photon emission tomography (SPECT) at 2 h and 6 h after injection; the results were compared to 10 healthy volunteers (controls). Uptake of MIBG in the left ventricle at 2 h after injection ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.3.316
更新日期:1993-03-01 00:00:00
abstract:AIMS:Cardiomyopathy produces significant mortality in patients with Friedreich ataxia (FA), a genetic disorder that produces intra-mitochondrial iron accumulation. We sought to test the hypothesis that abnormal myocardial perfusion reserve and fibrosis represent early manifestations of cardiomyopathy. METHODS AND RESU...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehq443
更新日期:2011-03-01 00:00:00
abstract::Eight young healthy male subjects, members of a Himalayan expedition, underwent 24 h Holter monitoring before departure, after 1 and 4 weeks at high altitude (5000 m) and after return to sea level. At high altitude, the circadian reciprocal changes in low and high frequency (LF, HF) were absent, with no significant re...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060415
更新日期:1994-11-01 00:00:00
abstract:AIMS:Intravascular ultrasound (IVUS) assesses arterial remodelling by comparing the lesion external elastic membrane (EEM) with the reference segments; however, reference segments are rarely disease-free. The aim was to assess lesion and reference segment remodelling and plaque burden in patients with type-2 diabetes m...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehm175
更新日期:2007-07-01 00:00:00
abstract::The value of quantitative assessment of coronary artery dimensions at the site of the most critical coronary stenosis was assessed by comparison with the correspondent reactive hyperaemia as measured by digital subtraction angiography and with the functional results. Thirty-two coronary lesions were analysed and flow ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060056
更新日期:1992-01-01 00:00:00
abstract::Plasma neuropeptide Y-like immunoreactivity (NPY-LI) is elevated in patients with acute myocardial ischaemia and congestive heart failure (CHF) owing to increased activity of the sympathetic nervous system. The prognostic value of plasma NPY-LI with regard to mortality was studied in 324 random patients admitted to a ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060526
更新日期:1994-04-01 00:00:00
abstract:AIMS:we investigated the relationship between sublingual perfused capillary density (PCD) as a measure of tissue perfusion and outcome (i.e. occurrence of organ failure and mortality) in patients with cardiogenic shock from acute myocardial infarction. METHODS AND RESULTS:we performed a prospective study in 68 patient...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehq324
更新日期:2010-12-01 00:00:00
abstract::We investigated cardiovascular and coronary responses to intravenous infusions of adrenaline, which raised arterial concentrations in a stepwise fashion from basal to about 5-6 nmol.l-1, in 11 non-rejecting heart transplanted patients, and in eight intact innervated subjects. Cardiac adrenaline extraction and noradren...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.4.474
更新日期:1993-04-01 00:00:00
abstract:OBJECTIVE:To examine the atherogenic risk-reducing effect of bezafibrate and lovastatin. DESIGN, SETTING, PATIENTS, INTERVENTIONS:Double-blind, randomized clinical trial of male and female patients with moderate hypercholesterolaemia with or without hypertriglyceridaemia. Two months dietary treatment followed by 400 m...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1093/oxfordjournals.eurheartj.a060769
更新日期:1995-11-01 00:00:00
abstract::This treatise reviews two-dimensional echocardiographic criteria which have been developed to describe and distinguish reversible vs irreversible myocardial ischaemia. It also discusses the new pathophysiologic concepts such as 'hibernating' and 'decapitated' myocardium, and also 'reperfusion injury' and 'stunned' myo...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/9.suppl_f.29
更新日期:1988-04-01 00:00:00
abstract::Arbutamine (Gensia, Inc., San Diego, CA) is a newly-developed sympathomimetic agent specifically designed for cardiovascular stress testing. It has been successfully used for the detection of coronary artery disease in conjunction with electrocardiography, echocardiographic and radionuclide techniques. Arbutamine incr...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/16.suppl_m.24
更新日期:1995-11-01 00:00:00
abstract::Temporal signal averaging of the surface QRS (V1 + V3 + V5) was performed in 16 patients with arrhythmogenic right ventricular dysplasia and in 16 normal subjects. The differences between ARVD patients and normals were large for the filtered QRS duration (FQRSd) (146.2 +/- 18.9 ms vs. 91.8 +/- 4.1 ms, P less than 0.00...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062501
更新日期:1988-03-01 00:00:00
abstract::To assess possible clinical and angiographic factors associated with acute coronary events following PTCA, we performed quantitative angiography in 168 consecutive patients who had undergone successful angioplasty in a native vessel (94 for stable angina, 74 for unstable angina), and who were restudied (24 +/- 15 week...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061051
更新日期:1995-08-01 00:00:00
abstract::The acute electrophysiologic effects of clinical doses of procainamide, lidocaine, metoprolol, digoxin and atropine upon the conduction of ventricular premature beats, were studied in 48 healthy volunteers. The conduction time of the first premature beat, induced 1 ms after the ventricular effective refractory period ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a061755
更新日期:1985-01-01 00:00:00
abstract:AIMS:Adenosine stress computed tomography myocardial perfusion imaging (CTP) is an emerging non-invasive method for detecting myocardial ischaemia. Its value when compared with fractional flow reserve (FFR), a highly accurate index of ischaemia, is unknown. Our aim was to determine the diagnostic accuracy of CTP and it...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehr268
更新日期:2012-01-01 00:00:00
abstract::The effects of a single oral dose of nisoldipine, 10 mg, were investigated in two groups of patients. Firstly, the effects of nisoldipine on exercise left ventricular function were assessed in 20 patients with chronic stable angina and coronary disease. Secondly, the effects of nisoldipine on the left ventricular resp...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/8.suppl_k.27
更新日期:1987-11-01 00:00:00
abstract::Pilots and new applicants with asymptomatic 'safe' WPW syndrome should be allowed to fly but not as pilot in sole command. Professional pilots with tachyarrhythmia related to a pre-excitation syndrome should usually be disqualified . Personnel who have undergone successful surgical treatment by ablation of an accessor...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/5.suppl_a.119
更新日期:1984-03-01 00:00:00
abstract:AIMS:To compare the precursor of atrial and brain natriuretic peptide (N-ANP, N-BNP), brain natriuretic peptide (BNP), big endothelin-1, the 6-min walk test and the Minnesota Living with Heart Failure Questionnaire (LHFQ) with regard to short-term outcome in an ambulatory heart failure population. METHODS AND RESULTS:...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2001.3115
更新日期:2002-06-01 00:00:00
abstract::Clinicians have long suspected that hypertrophied hearts have an inadequate coronary circulation. This clinical suspicion resulted from the observation that a large proportion of patients with left ventricular hypertrophy who have normal coronary arteriograms complain of angina and have ischaemia-like ST segment depre...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:
更新日期:1993-11-01 00:00:00