Abstract:
AIMS:We addressed a potential mechanism of myocardial dysfunction following coronary microembolization at the level of myofibrillar proteins. METHODS AND RESULTS:Anaesthetized pigs underwent intracoronary infusion of microspheres. After 6 h, the microembolized areas (MEA) had decreased systolic wall thickening to 38 +/- 7% of baseline and a 2.62 +/- 0.40-fold increase in the formation of disulphide cross-bridges (DCB) in tropomyosin relative to that in remote areas. The impairment in contractile function correlated inversely with DCB formation (r = -0.68; P = 0.015) and was associated with increased TNF-alpha content. DCB formation was reflected by increased tropomyosin immunoreactivity and abolished in vitro by dithiothreitol. Ascorbic acid prevented contractile dysfunction as well as increased DCB and TNF-alpha. In anaesthetized dogs, 8 h after intracoronary microspheres infusion, contractile function was reduced to 8+/-10% of baseline and DCB in MEA was 1.48+/-0.12 higher than that in remote areas. In conscious dogs, 6 days after intracoronary microspheres infusion, myocardial function had returned to baseline and DCB was no longer different between remote and MEA. Again contractile function correlated inversely with DCB formation (r = -0.83; P = 0.005). CONCLUSION:Myofibrillar protein oxidation may represent a mechanistic link between inflammation and contractile dysfunction following coronary microembolization.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Canton M,Skyschally A,Menabò R,Boengler K,Gres P,Schulz R,Haude M,Erbel R,Di Lisa F,Heusch Gdoi
10.1093/eurheartj/ehi751subject
Has Abstractpub_date
2006-04-01 00:00:00pages
875-81issue
7eissn
0195-668Xissn
1522-9645pii
ehi751journal_volume
27pub_type
杂志文章abstract:AIMS:The long QT syndrome is mainly defined by QT interval prolongation (QTc > 0.44s). However, data obtained in genotyped patients showed that resting QTc measurement alone may be inaccurate for ascertaining the phenotype. The aim of this study was to evaluate the diagnostic performance of QT interval rate-dependence ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1997.0730
更新日期:1998-01-01 00:00:00
abstract:AIMS:Previous trials that investigated cell therapy as an adjunctive therapy after acute myocardial infarction (AMI) have shown conflicting results. We designed a randomized controlled trial to determine the effect of intracoronary infusion of mononuclear cells from bone marrow (BM) or peripheral blood in patients with...
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/ehq449
更新日期:2011-07-01 00:00:00
abstract:Aims:The aim of this study is to develop models to aid the decision to prolong dual antiplatelet therapy (DAPT) that requires balancing an individual patient's potential benefits and harms. Methods and results:Using population-based electronic health records (EHRs) (CALIBER, England, 2000-10), of patients evaluated 1 ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehw683
更新日期:2017-04-07 00:00:00
abstract:AIMS:Hypertrophic cardiomyopathy (HCM) is a disease with marked regional differences in wall thickness. However, the relation between myocardial function and wall thickness has not been well studied. Ultrasonic strain rate (SR) imaging makes it possible to study the regional myocardial deformation. We investigated whet...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehm444
更新日期:2007-12-01 00:00:00
abstract:AIMS:Metalloproteinases are proteolytic enzymes, which decompose the extracellular matrix, influence cardiac remodelling, and are inhibited by tissue inhibitor of metalloproteinases (TIMPs). Little is known about the prognostic impact of the TIMP-1/matrix metalloproteinase complex in patients with future cardiovascular...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehi582
更新日期:2006-01-01 00:00:00
abstract:AIMS:Patients with atrial fibrillation (AF) present with symptoms of myocardial ischaemia despite exclusion of coronary artery disease. A small vessel disease has been suggested. We quantified myocardial perfusion, perfusion reserve, and coronary vascular resistance (CVR) in AF patients using positron emission tomograp...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehm246
更新日期:2007-09-01 00:00:00
abstract:UNLABELLED:Left atrial spontaneous echo contrast, detected by transoesophageal echocardiography in patients with non-valvular atrial fibrillation reflects slow blood flow and is associated with an increased risk of cardio-embolism. The purpose of this study was to find echo/Doppler predictors of left atrial spontaneous...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a060428
更新日期:1994-11-01 00:00:00
abstract::Priorities for unanswered questions concerning major areas of cardiovascular disease are being sought by the British Cardiovascular Society, using the methods of the James Lind Alliance, which involves clinicians and patients in an equal partnership, reports Barry Shurlock PhD. ...
journal_title:European heart journal
pub_type: 新闻
doi:
更新日期:2015-06-01 00:00:00
abstract:AIMS:Clonal haematopoiesis of indeterminate potential (CHIP), defined as the presence of an expanded somatic blood cell clone without other haematological abnormalities, was recently shown to increase with age and is associated with coronary artery disease and calcification. The most commonly mutated CHIP genes, DNMT3A...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehz591
更新日期:2020-02-21 00:00:00
abstract:AIMS:Coronary artery dissections are common findings following percutaneous transluminal coronary angioplasty and occur with an incidence of approximately 20% to 40%. The purpose of this study was to evaluate the impact of intravascular ultrasound for the prediction of severe dissections by pre-interventional analysis ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1997.0799
更新日期:1998-06-01 00:00:00
abstract:AIMS:Whether increased homocysteine is one mechanism linking obstructive sleep apnoea (OSA) to cardiovascular abnormalities is unclear. We hypothesised that plasma homocysteine would be higher in OSA patients than in control subjects, would increase further during sleep, and decrease after treatment with continuous pos...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1016/j.ehj.2004.05.018
更新日期:2004-08-01 00:00:00
abstract:AIM:Ventricular fibrillation (VF), the main cause of sudden cardiac death (SCD), occurs most frequently in the acute phase of myocardial infarction: a certain fraction of VF, however, develops in an apparently healthy heart, referred as idiopathic VF. The contribution of perturbation in the fast conduction system in th...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehv449
更新日期:2016-05-07 00:00:00
abstract::The endothelium may play a role as a target and mediator of hypertension. Due to its anatomical position, it is very exposed to mechanical forces; as a source of vasoactive material it may participate in increasing peripheral vascular resistance and in promoting local ischaemia in the heart and brain. Morphological an...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/13.suppl_d.50
更新日期:1992-09-01 00:00:00
abstract::Physical fitness of athletes affected by mitral valve prolapse (MVP) was examined, in order to evaluate the influence of sport activity on the natural history of the disease. Maximal workload, total workload, percentage efficiency (according to Hollmann's formula), double product of maximal cycloergometric stress test...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/8.suppl_d.33
更新日期:1987-08-01 00:00:00
abstract:AIM:Estrogens regulate several biological processes involved in the pathogenesis of myocardial infarction. Catechol-O-methyltransferase (COMT) is a key enzyme in the degradation of estrogens. There is a functional polymorphism in the COMT gene (Val158Met), affecting the activity of the enzyme. We investigated if the lo...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ehj.2003.12.026
更新日期:2004-03-01 00:00:00
abstract:AIMS:We analysed the contemporary incidence, outcomes, and predictors of heart failure (HF) and/or left ventricular systolic dysfunction (LVSD) before discharge in patients with acute myocardial infarction (MI). The baseline presence of HF or LVSD, or its development during hospitalisation, increases short- and long-te...
journal_title:European heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ehj.2004.08.006
更新日期:2004-11-01 00:00:00
abstract:AIMS:Our aims were to evaluate the distribution of troponin I concentrations in population cohorts across Europe, to characterize the association with cardiovascular outcomes, to determine the predictive value beyond the variables used in the ESC SCORE, to test a potentially clinically relevant cut-off value, and to ev...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehw172
更新日期:2016-08-07 00:00:00
abstract::Unstable angina is a high-risk phase of coronary heart disease defined by clinical symptoms. Electrocardiographic findings are heterogeneous and creatine kinase is only rarely elevated. However, troponin T and troponin I are found in about 30-40% of patients with angina at rest disclosing minor myocardial cell injury....
journal_title:European heart journal
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract:AIMS:To evaluate the effects of simvastatin only or combined with continuous hormone replacement therapy on the serum lipid profile in hypercholesterolaemic post-menopausal women. METHODS AND RESULTS:One hundred hypercholesterolaemic post-menopausal women were given either simvastatin 10 mg daily together with oestrog...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.1999.1582
更新日期:2000-02-01 00:00:00
abstract::Approximately 20% of patients undergoing diagnostic coronary arteriography for acute or chronic cardiac ischaemia have angiographically normal coronary arteries. The mechanism behind this phenomenon is likely to be the result of a combination of functional or anatomical abnormalities in the coronary microcirculation, ...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/17.suppl_g.14
更新日期:1996-12-01 00:00:00
abstract:AIMS:To evaluate the effects of cardiac resynchronization therapy (CRT) on long-term survival of patients without baseline left ventricular (LV) mechanical dyssynchrony. METHODS AND RESULTS:A total of 290 heart failure patients (age 67 ± 10 years, 77% males) without significant baseline LV dyssynchrony (<60 ms as asse...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehr468
更新日期:2012-04-01 00:00:00
abstract:AIMS:The aim of this study was to determine the contribution of physical activity and abdominal obesity to the variation in inflammatory biomarkers and incident coronary heart disease (CHD) in a European population. METHODS AND RESULTS:In a prospective case-control study nested in the European Prospective Investigatio...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/ehp010
更新日期:2011-02-01 00:00:00
abstract:AIMS:To determine the sequence of critical cardiovascular events in the progression of heart failure, and whether aetiology or high-dose vs low-dose lisinopril affected these pathways. METHODS AND RESULTS:This was a post-hoc investigation of the ATLAS database, which comprised 3164 patients with chronic heart failure,...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1053/euhj.2000.2570
更新日期:2001-09-01 00:00:00
abstract::The magnitude and biological relevance in vivo of the beta-blocking properties, observed in vitro, of propafenone remains controversial. We studied the effects of propafenone on the heart rate response to graded stimulation of the right stellate ganglion in 13 anaesthetized, vagotomized cats. The decentralized ganglio...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/14.9.1253
更新日期:1993-09-01 00:00:00
abstract::Ten patients with chronic intermittent claudication were included in a double-blind, randomized cross-over study of placebo, propranolol 80 mg b.i.d. and metoprolol 100 mg b.i.d., each given for two months. At the end of each treatment period, the patients were tested on a treadmill and the time to first claudication ...
journal_title:European heart journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/oxfordjournals.eurheartj.a061440
更新日期:1983-03-01 00:00:00
abstract::The pharmacokinetics of glyceryl trinitrate are still not completely understood. The substance disappears rapidly from plasma largely by extrahepatic mechanisms. It is converted in glyceryl dinitrates and glyceryl mononitrates. After transdermal application of a controlled delivery system, plasma concentrations of gly...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/9.suppl_a.33
更新日期:1988-01-01 00:00:00
abstract::Contrary to most prospective epidemiologic studies, an earlier report from the British Regional Heart Study (BRHS) suggested that high density lipoprotein (HDL)-cholesterol in men aged 40-59 years was not a significant, independent, predictive risk factor for coronary heart disease (CHD), controlling for the composite...
journal_title:European heart journal
pub_type: 杂志文章,评审
doi:10.1093/eurheartj/11.suppl_h.21
更新日期:1990-12-01 00:00:00
abstract::The study was designed to examine the safety and efficacy of acute interventional use of captopril on left ventricular volumes, ventricular arrhythmias and neurohormones during thrombolysis in patients with a first anterior myocardial infarction, within 6 h of onset of symptoms. Left ventricular dysfunction and progno...
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.a060608
更新日期:1994-07-01 00:00:00
abstract::Although indicated by several experimental studies, the presence of a renin-angiotensin system has not been demonstrated in the human heart. The influence of a local renin-angiotensin system on the coronary vessels may be difficult to establish after oral or intravenous administration of an angiotensin converting-enzy...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/eurheartj/10.suppl_f.97
更新日期:1989-11-01 00:00:00
abstract::24 hour ambulatory electrocardiography was performed in a representative group of people born in 1897. Out of 73 people included in the study, 22 were without known heart disease, 15 had definite ischaemic heart disease (IHD) and 36 symptoms of possible cardiac origin. An R-R interval in excess of 2000 ms was seen in ...
journal_title:European heart journal
pub_type: 杂志文章
doi:10.1093/oxfordjournals.eurheartj.a062107
更新日期:1986-07-01 00:00:00