Abstract:
OBJECTIVE:Caffeic acid phenethyl ester (CAPE), which is derived from the propolis of honeybee hives, has been demonstrated to possess multiple pharmacological activities. In the present study, CAPE (6-25 microM) specifically inhibited collagen-induced platelet aggregation and the ATP release reaction in platelet suspensions. METHODS:Platelet aggregation, flow cytometric analysis, immunoblotting, and electron spin resonance (ESR) were used to assess the anti-platelet activity of CAPE. Fluorescein sodium-induced platelet thrombi in mesenteric microvessels of mice were used for an in vivo study. RESULTS:CAPE (15-100 microM) produced a concentration-related rightward displacement of the collagen concentration-response curve, and the Schild plot gave pA(2) and pA(10) values of 4.28+/-0.07 and 3.14+/-0.73, respectively, with a slope of -0.83+/-0.16, indicating specific antagonism. CAPE (25 microM) also inhibited platelet aggregation stimulated by the glycoprotein VI agonist, convulxin, and the alpha(2)beta(1) integrin agonist, aggretin. CAPE (25 microM) also markedly interfered with FITC-collagen binding to platelet membranes. CAPE (15 and 25 microM) concentration-dependently inhibited collagen-induced platelet activation accompanied by [Ca(+2)](i) mobilization, phosphoinositide breakdown, activation of protein kinase C and mitogen-activated protein kinases (i.e., ERK2, JNK, and p38 MAPK), Akt phosphorylation, and thromboxane A(2) formation. In the ESR study, CAPE (15 and 25 microM) markedly reduced hydroxyl radical (OH) formation in collagen-activated platelets. In an in vivo study, CAPE (5 mg/kg) significantly prolonged the latency in inducing platelet plug formation in mesenteric venules of mice. CONCLUSIONS:The most important findings of this study suggest that CAPE specifically inhibits collagen-induced platelet activation. Thus, CAPE treatment may represent a novel approach to lowering the risk of or improving function in thromboembolism-related disorders.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Hsiao G,Lee JJ,Lin KH,Shen CH,Fong TH,Chou DS,Sheu JRdoi
10.1016/j.cardiores.2007.05.005subject
Has Abstractpub_date
2007-09-01 00:00:00pages
782-92issue
4eissn
0008-6363issn
1755-3245pii
S0008-6363(07)00218-0journal_volume
75pub_type
杂志文章abstract::Sudden hypothermia utilising liquid nitrogen has been used for immediate inhibition of metabolic reactions and preservation of labile compounds in heart muscle. It has been suggested that this rapid transfer of tissue into liquid nitrogen, within 1 to 2 s, is essential for accurate assessment of internal milieu condit...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/12.3.162
更新日期:1978-03-01 00:00:00
abstract:OBJECTIVE:The aim was to test the hypothesis that in normal humans angiotensin II would stimulate local release of noradrenaline under basal conditions or during a sympathetic stimulus provided by lower body negative pressure (LBNP). METHODS:Nine healthy volunteers received intra-arterial infusions of angiotensin II, ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/28.5.663
更新日期:1994-05-01 00:00:00
abstract:AIMS:Recent immunohistochemical studies observed the loss of plakoglobin (PG) from the intercalated disc (ID) as a hallmark of arrhythmogenic right ventricular cardiomyopathy (ARVC), suggesting a final common pathway for this disease. However, the underlying molecular processes are poorly understood. METHODS AND RESUL...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvq353
更新日期:2011-04-01 00:00:00
abstract::Vascular endothelial growth factors (VEGFs) are key regulators of permeability. The principal evidence behind how they increase vascular permeability in vivo and in vitro and the consequences of that increase are addressed here. Detailed analysis of the published literature has shown that in vivo and in vitro VEGF-med...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvq105
更新日期:2010-07-15 00:00:00
abstract:OBJECTIVE:The aim was to estimate the relative contributions of the various intracellular and sarcolemmal systems to the relaxation of the systolic calcium transient. METHODS:The experiments were performed on isolated rat ventricular myocytes. The cells were loaded with the fluorescent indicator indo-1 in order to mea...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/27.10.1826
更新日期:1993-10-01 00:00:00
abstract::The potent anaphylatoxin C3a was measured in the peripheral blood of eleven patients receiving radiocontrast agents whilst undergoing coronary angiography. In seven patients C3a levels were raised during this procedure and in three of these the anaphylatoxin was increased between four and tenfold. In four patients C3a...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/19.2.85
更新日期:1985-02-01 00:00:00
abstract:OBJECTIVES:Plasma endothelin (ET) concentrations are increased in heart failure. The aims of the present study were to investigate to what extent cardiac ET mRNA expression is induced in ischemic heart failure and whether there may be compensatory downregulation of myocardial mRNA levels for the ETA and ETB receptor su...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(96)00266-0
更新日期:1997-03-01 00:00:00
abstract:AIMS:Arrhythmias and sudden cardiac death (SCD) occur commonly in patients with heart failure. We found T-box 5 (TBX5) dysregulated in ventricular myocardium from heart failure patients and thus we hypothesized that TBX5 reduction contributes to arrhythmia development in these patients. To understand the underlying mec...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvaa239
更新日期:2020-08-10 00:00:00
abstract:OBJECTIVE:Catechol O-methyltransferase (COMT) is believed to exert degradative action at high norepinephrine (NE) levels. Although COMT exists in cardiac tissues, the contribution of cardiac COMT activity to regional NE kinetics, particularly in ischemia-induced NE accumulation, remains unclear. We investigated the rol...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2004.06.011
更新日期:2004-10-01 00:00:00
abstract::The distribution of neuropeptide Y (NPY) in the rat cardiovascular system has been examined by radioimmunoassay, chromatographic analysis of tissue extracts, and immunocytochemistry. High concentrations of NPY were identified throughout the heart and within the major blood vessels of the rat in particular in the renal...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/19.9.570
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVES:Diastolic dysfunction that determines symptoms and prognosis in patients with systolic dysfunction causes heart failure even in the absence of systolic dysfunction. Our recent studies have suggested that myocardial stiffening is likely to play a crucial role in triggering deleterious cardiac disorder. This s...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(02)00341-3
更新日期:2002-07-01 00:00:00
abstract:Aims:Metabolic syndrome (MS) is a cluster of cardio-metabolic risk factors associated with atherosclerosis and low-grade inflammation. Using unbiased expression screenings in peripheral blood mononuclear cells, we depict here a novel expression chart of 678 genes and 84 microRNAs (miRNAs) controlling inflammatory, immu...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvy077
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:Ischaemia followed by reperfusion brings about a reduction in cardiac capillary cross-sectional dimensions which is consistent with constriction. The aim of this study was to test the hypothesis that the reduction in cardiac capillary dimensions that occurs in ischaemia and reperfusion is caused by endothelia...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(00)00173-5
更新日期:2000-11-01 00:00:00
abstract:OBJECTIVE:To investigate the possible mechanisms of the antiatherosclerotic effects of the angiotensin-converting enzyme (ACE) inhibitor, fosinopril, in apolipoprotein (apo) E deficient mice. METHODS:Apo E deficient (E0) mice at the age of 8 weeks received either placebo or a high dose (25 mg/kg/d) of fosinopril suppl...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(99)00239-4
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:Increased pulse pressure has been observed in aging subjects, but the impact on the structure and reactivity of small arteries has been scarcely evaluated. METHODS:This study presents the modifications of vascular structure and function observed in female rats of 5, 18 and 32 months of age, and their relatio...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(97)00225-3
更新日期:1998-01-01 00:00:00
abstract:AIMS:Adequate microcirculatory perfusion, and not just opening of occluded arteries, is critical to salvage heart tissue following myocardial infarction. However, the degree of microvascular perfusion taking place is not known, limited primarily by an inability to directly image coronary microcirculation in a beating h...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvz118
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVES:We studied the effects of chronic left coronary artery ligation on cardiac structure and function in the mouse. METHODS:Morphometric studies of the left ventricle were performed in coronary artery-ligated and sham-operated animals at one, two, three and five weeks after surgery. The fraction of DNA-synthesi...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00216-8
更新日期:1999-03-01 00:00:00
abstract:AIMS:Previous studies on the role of stem cell factor (SCF) in endothelial progenitor cell (EPC)-mediated neovascularization have focused on the EPC mobilization and homing process. However, the direct effects of SCF on neovascularization activity of EPCs have not been characterized. We sought to determine whether SCF ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvr161
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:The aim was to determine the ionic basis of action potential lengthening associated with cardiac hypertrophy. METHODS:Action potentials and ionic currents of left ventricular myocytes isolated from normal and hypertrophied hearts were recorded with patch pipettes. Since cardiac hypertrophy is a time dependen...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/28.8.1180
更新日期:1994-08-01 00:00:00
abstract:OBJECTIVE:We determine if action potential duration (APD) shortening and cardioprotection are separable phenomena in ATP-sensitive potassium channel (KATP) openers which protect ischemic myocardium via a glyburide-reversible mechanism. METHODS:We determined the effect of the weakly vasodilating KATP opener, BMS-180448...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract:Aims:Currently, efficient regimens to reverse atherosclerotic plaques are not available in the clinic. Herein, we present sonodynamic therapy (SDT) as a novel methodology to rapidly inhibit progression of atherosclerotic plaques. Methods and results:In atherosclerotic rabbit and apoE-deficient mouse models, SDT effici...
journal_title:Cardiovascular research
pub_type: 临床试验,杂志文章
doi:10.1093/cvr/cvy139
更新日期:2019-01-01 00:00:00
abstract::The effect of chronic propranolol administration (2 mg.kg-1.d-1 for 14d) and withdrawal on microvascular perfusion was studied in rabbit myocardium. Fluorescein isothiocyanate-dextran was injected into four groups of anaesthetised open chest rabbits. Fluorescent microscopy was used to identify the perfused vessels and...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/22.11.793
更新日期:1988-11-01 00:00:00
abstract::Vascular smooth muscle cells (vSMCs) play a crucial role in both the pathogenesis of Aneurysms and Dissections of the ascending thoracic aorta (TAAD) in humans and in the associated adaptive compensatory responses, since thrombosis and inflammatory processes are absent in the majority of cases. Aneurysms and dissectio...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvy006
更新日期:2018-03-15 00:00:00
abstract:OBJECTIVE:Defects in myocardial mitochondrial structure and function have been associated with heart failure in humans and animal models. Mice lacking the muscle LIM protein (MLP) develop morphological and clinical signs resembling human dilated cardiomyopathy and heart failure. We tested the hypothesis that defects in...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2004.10.025
更新日期:2005-02-01 00:00:00
abstract::Currently, a high carbohydrate/low fat diet is recommended for patients with hypertension; however, the potentially important role that the composition of dietary fat and carbohydrate plays in hypertension and the development of pathological left ventricular hypertrophy (LVH) has not been well characterized. Recent st...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/j.cardiores.2006.11.007
更新日期:2007-01-15 00:00:00
abstract:STUDY OBJECTIVE:The aim was to evaluate the influence that centrally administered angiotensin-II has on the intrarenal renin-angiotensin system and renal sympathetic nerve activity. DESIGN:Renal responses to centrally administered angiotensin-II (10 micrograms) or saralasin (50 micrograms) were measured in anaesthetis...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/25.5.353
更新日期:1991-05-01 00:00:00
abstract::The acute haemodynamic effects of taurine were studied in normal and in beta blocker (propranolol) or calcium antagonist (diltiazem) treated rabbits and in rabbits with experimentally produced chronic aortic regurgitation. The administration of taurine (25 mg.kg-1) did not affect heart rate and left ventricular end di...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/21.4.241
更新日期:1987-04-01 00:00:00
abstract::The QT interval, a global index of ventricular repolarization, varies among individuals and is influenced by diverse physiologic and pathophysiologic stimuli such as gender, age, heart rate, electrolyte concentrations, concomitant cardiac disease, and other diseases such as diabetes. Many drugs produce a small but rep...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvz013
更新日期:2019-04-15 00:00:00
abstract::The effects of repeated (10 X), brief Ca2+-free perfusions (20 to 120 s) on myocardial contractility, coronary flow and release of cellular constituents of isolated rat heart were investigated. Ten successive Ca2+-deprivations of 20 or 40 s had no irreversible influences on cardiac performance. Ca2+-deprivations, howe...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/17.8.476
更新日期:1983-08-01 00:00:00
abstract:OBJECTIVES:The A10 cell line was derived from the thoracic aorta of embryonic rat and is a commonly used model of vascular smooth muscle cells (VSMC). Despite its wide use this cell line has not been well characterized. This is especially important in light of recent evidence of phenotypically distinct cell populations...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(97)00156-9
更新日期:1997-10-01 00:00:00