Abstract:
:Sarcosyl1, cysteinyl-S-methyl8-angiotensin II [(Sar1, Cys-Me8) Ang II] was examined for antagonism of angiotensin (Ang) responses in isolated rabbit atrial and aortic tissues. (Sar1, Cys-Me8) Ang II competitively antagonized Ang II responses in aorta at a concentration of 5 nM. Concentrations of the antagonist greater than 5 nM resulted in noncompetitive antagonism of Ang II responses in cardiac and vascular smooth muscle. These actions of (Sar1, Cys-Me8) Ang II were significant (p less than 0.01) and depressed maximal responses to Ang II as much as 80%. In contrast, (Sar1, Cys-Me8) Ang II at concentrations up to 10(-6) M did not significantly alter maximal responses to Ang III at any concentration in any of the experimental preparations. The antagonist did competitively inhibit Ang III concentration-dependent responses in the aorta and, to a lesser extent, in isolated atria. Saralasin was a competitive antagonist of Ang II and III in atrial and aortic preparations. Norepinephrine responses in cardiac and vascular tissues were not altered by these antagonists. The different types of antagonism exhibited by (Sar1, Cys-Me8) Ang II against Ang II and III in identical preparations demonstrate the potential for the existence of separate Ang receptors.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Trachte GJ,Peach MJdoi
10.1097/00005344-198311000-00017subject
Has Abstractpub_date
1983-11-01 00:00:00pages
1025-33issue
6eissn
0160-2446issn
1533-4023journal_volume
5pub_type
杂志文章abstract:BACKGROUND:The purpose of this study was to determine the effect of a combination of bone marrow mononuclear cell (BM-MNC) implantation and sarpogrelate, a selective 5-HT(2A) antagonist, on endothelial function in patients with critical limb ischemia (CLI). METHODS:We evaluated the leg blood flow (LBF) responses to ac...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/FJC.0b013e3181c37da4
更新日期:2010-01-01 00:00:00
abstract::To investigate the role of endothelin (ET) in severe hypertension, endothelial dysfunction hypercholesterolemic stroke-prone spontaneously hypertensive rats (SHRSP on a 5% cholesterol diet) were additionally fed with 1% NaCl and 0.023% nitro-L-arginine. Under these conditions, all untreated rats died within 30 days (m...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199800001-00069
更新日期:1998-01-01 00:00:00
abstract::Studies were undertaken to ascertain whether metoprolol, a beta 1-selective adrenergic blocking agent, could offer a limitation of myocardial injury throughout a 24-h period of coronary embolization in the dog. Regional myocardial ischaemia was induced through the use of a bead embolization technique which did not req...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1984-11-01 00:00:00
abstract::Several recent studies demonstrate that T lymphocytes and monocytes enter the vessel wall during pathologic conditions and accumulate both in atherosclerotic and arteritic lesions. This brief review summarizes our phenotypic analysis of such T lymphocytes. Effects of T lymphocytes and their secretory products (lymphok...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1989-01-01 00:00:00
abstract::Angiotensin II receptor blockers (ARBs) are used for the treatment of patients with heart failure and hypertension. Yet their safety has been questioned by some who observed delayed cardiac healing and scar thinning after myocardial infarction (MI). To clarify potential efficacy and safety of ARBs, we administered Azi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e318288a6d7
更新日期:2013-05-01 00:00:00
abstract::We examined responses to the 5-hydroxytryptamine 1D (5-HT1D)-receptor agonist sumatriptan in bovine pulmonary artery rings (2-3 mm ID). The effects of agonist-induced tone and agents that alter intracellular cyclic AMP [cyclic AMP]i or [cyclic GMP]i on responses to sumatriptan were investigated. At resting tension, re...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199511000-00012
更新日期:1995-11-01 00:00:00
abstract:SUMMARY:The present study reports the effects of apomorphine (APO) on blood pressure and the principal site of action of this agonist in 4-week deoxycorticosterone-acetate (DOCA)-hypertensive conscious rats. In these preprations, intravenous (i.v.) administration of APO (0.50-1 mg/kg) induced short-lasting and dose-dep...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200312000-00012
更新日期:2003-12-01 00:00:00
abstract::Disorders of the cardiac conduction system occur frequently and may cause life-threatening arrhythmias requiring medication or electronic pacemaker implantation. Repair or regeneration of conduction system components is currently not possible due to limited knowledge of the molecular regulation of pacemaker myocardium...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e3181e775d3
更新日期:2010-07-01 00:00:00
abstract::Congestive heart failure is a leading cause of morbidity and mortality. Congestive heart failure is marked by atrial and ventricular enlargements and reduced cardiac contractility and an association with an increased incidence of atrial and ventricular arrhythmias and sudden cardiac death. Dysfunctional ion channel fu...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e3181a1b9c7
更新日期:2009-10-01 00:00:00
abstract::Bromocriptine, a dopamine (DA) receptor agonist, has been reported to have hypotensive effects in anesthetized and conscious normotensive rats but its mechanism of action is still not fully understood. Therefore, we studied the changes in mean arterial blood pressure (MAP) and heart rate (HR) elicited by an intravenou...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199109000-00003
更新日期:1991-09-01 00:00:00
abstract::We have previously demonstrated that cocaine induces apoptosis in primary cultures of fetal rat cardiomyocytes. The current study was designed to determine whether cocaine administered to the mother during pregnancy induced apoptosis in fetal rat heart. Pregnant rats were treated with cocaine subcutaneously (30 and 60...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200106000-00001
更新日期:2001-06-01 00:00:00
abstract::The cardiopulmonary profile of three different rat strains was compared after exposure to hypoxia (9% O2) for 0, 7, or 14 days. In Sprague-Dawley (SD), Wistar (W), and high altitude-sensitive (HAS) rats, pulmonary arterial pressure (PAP) rose 30, 58, and 85% respectively, after 7 days of hypoxia, and by 108, 116, and ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199800001-00129
更新日期:1998-01-01 00:00:00
abstract::This study examined the physiological effects and potential mechanisms of action of methylecgonidine (MEG), the major pyrolysis product from smoking "crack cocaine," on cardiac function. Ferret right ventricular papillary muscles and human ventricular trabeculae were isolated and placed in a physiological solution at ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199709000-00013
更新日期:1997-09-01 00:00:00
abstract::The exercise response to a single oral dose (25 mg) of a new beta-blocking agent that also has potent vasodilating properties, carvedilol, was assessed in 15 patients with stable exertional angina, positive exercise tests (greater than or equal to 1 mm ST depression) and coronary artery disease. A placebo-controlled, ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1987-01-01 00:00:00
abstract::Elevated levels of endogenous digoxin-like immunoreactivity have been reported in the body fluids of premature and full-term infants as well as in term pregnancy, in the amniotic fluid, and in human milk. Several lines of evidence suggest that these factors could also have biological properties in common with digitali...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-199322002-00010
更新日期:1993-01-01 00:00:00
abstract::Left ventricular dysfunction in systemic sclerosis may be due in part to myocardial ischemia caused by a disturbance in coronary microcirculation. We evaluated the pharmacodynamic effect of the calcium channel blocker nicardipine on left ventricular function assessed by radionuclide ventriculography in 20 patients wit...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199002000-00011
更新日期:1990-02-01 00:00:00
abstract::The sympathetic drive to the cardiovascular system depends on the integrity of neurons in the medulla oblongata. The adrenergic neurons of the C1-area of the cortical ventrolateral medulla are tonically active and provide the background excitation of the spinal preganglionic neurons, which relay to the postganglionic ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-198500073-00019
更新日期:1985-01-01 00:00:00
abstract::The antihypertensive efficacy and tolerability of amlodipine in combination with enalapril were assessed in this two-center study. Patients with moderate to severe hypertension and with diastolic blood pressure > 95 mm Hg after 4 weeks of treatment with open-label enalapril 5-10 mg daily were randomized to receive aml...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/00005344-199117001-00006
更新日期:1991-01-01 00:00:00
abstract::Sickle cell disease (SCD), the most common inherited hematologic disorder in the United States and the most common single gene disorder in the world, causes substantial morbidity and mortality. The major pathobiologic processes that underlie SCD include vaso-occlusion, inflammation, procoagulant processes, hemolysis, ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e318204bb34
更新日期:2011-02-01 00:00:00
abstract::Qian Yang He Ji (QYHJ) is a traditional Chinese medicine composed of Digitalis purpurea, Uncaria gambir, Fructus tribuli terrestris, and Ligustrum lucidum. Here, we explored whether combining an antihypertensive angiotensin II receptor blocker (ARB) therapy with QYHJ can improve the arterial functionality of hypertens...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/FJC.0b013e31827afddf
更新日期:2013-05-01 00:00:00
abstract::Coronary artery reperfusion established by thrombolytic agents early in the evolution of an acute myocardial infarction is known to result in the salvage of otherwise jeopardized heart muscle. Recently, experimental evidence has suggested that reactive products of oxygen are formed as a result of reperfusion and can i...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198808000-00009
更新日期:1988-08-01 00:00:00
abstract::To evaluate the role of intracellular calcium and particularly Ca2+-uptake in the initiation of lymphocyte mitogenesis, the effect of mibefradil, which blocks both L- and T-type calcium channels with a more selective blockade of T-type channels, on the proliferation of human peripheral blood mononuclear cells (PBMCs) ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199904000-00012
更新日期:1999-04-01 00:00:00
abstract::Approximately 40-50% of the patients with end-stage cardiac failure (either ischemic or nonischemic) die suddenly and unexpectedly, most probably from ventricular fibrillation. It is unclear whether the complex ventricular arrhythmias observed in large numbers of these patients were related to the mode of death. Theor...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1990-01-01 00:00:00
abstract::Endothelin-1 (ET-1) is an endothelium-derived peptide with powerful vasoconstrictor and mitogenic properties. A pathophysiologic role for ET-1 has been suggested, because increased plasma and tissue levels of this peptide have been described in a number of disease states, including atherosclerosis. Immunocytochemistry...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Severe pulmonary arterial hypertension (PAH) is characterized by clustered proliferation of endothelial cells (ECs) in the lumina of small size pulmonary arteries resulting in concentric obliteration of the lumina and formation of complex vascular structures known as plexiform lesions. This debilitating disease occurs...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e3181f9ea8d
更新日期:2010-12-01 00:00:00
abstract::Recently, a potent vasoconstrictor peptide, endothelin-1 (ET-1), was isolated from vascular endothelial cells. We investigated the inhibition of ET-1-induced contractions on isolated porcine coronary artery and rabbit aorta by calcium antagonists of the 1,4-dihydropyridine type. In addition, the vasoconstriction induc...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::Apoptosis, a genetically controlled programmed cell death, has been found to play a role in ischemic reperfusion injury in several animal species including rats and rabbits. To examine whether this also is true for other animals, a surgically relevant model was established using an isolated in situ swine heart. Hearts...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200011000-00009
更新日期:2000-11-01 00:00:00
abstract::Adenosine protects the ischemic myocardium by coronary vasodilation and the depression of heart rate and contractility, improving myocardial energy balance. Adenosine effects on the myocardium are mediated predominantly by the type A1 receptors. Atrial natriuretic peptide (ANP), a vasodilator and regulator of blood vo...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199907000-00002
更新日期:1999-07-01 00:00:00
abstract::Spontaneously hypertensive stroke-prone rats suffer spontaneous strokes partly as a result of abnormal cerebrovascular development. This model exhibits prehypertensive, typical hypertensive and malignant hypertensive stages. We had observed that vascular endothelial growth factor and its receptors, kinase domain regio...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000166264.27476.60
更新日期:2004-11-01 00:00:00
abstract::We have studied the effect of ramipril (10 mg/kg daily by gastric gavage) on the development of neointima 2 and 14 days after injury to rat aorta with a balloon catheter. In treated animals, there was no significant inhibition of the early mitotic reaction after injury (synthesis of DNA, as reflected by aortic thymidi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199108000-00005
更新日期:1991-08-01 00:00:00