Abstract:
:Fourteen patients with mild to moderate essential hypertension were randomized, after a baseline placebo period of 4 weeks, to receive the angiotensin converting enzyme (ACE) inhibitor quinapril or a placebo. During a 12 week, double-blind phase, the dosage of quinapril was increased from 10 to 40 mg twice daily being doubled every 4 weeks. At the end of the baseline period and of each month of the double-blind phase, 12 h overnight urine collections were made and morning blood samples were taken about 12 h after the last dose of medication. During the double-blind phase, blood pressure in the quinapril group (n = 7) decreased from 159 +/- 3/105 +/- 1 to 141 +/- 6/94 +/- 2 mm Hg (mean +/- SEM). Serum ACE activity and plasma angiotensin II concentration were reduced to 4 +/- 1% and 14 +/- 1% of the pretreatment values, respectively. Neither the plasma concentrations nor the urinary excretions of prostaglandin E2, 6-keto-prostaglandin F1 alpha (a prostacyclin metabolite), or thromboxane B2 (a metabolite of thromboxane A2) were affected by quinapril. In the placebo group, blood pressure tended to decline but the biochemical variables remained essentially unchanged. These results indicate that prostanoids are not involved in the antihypertensive action of quinapril, the principal effect of which seems to be inhibition of the renin-angiotensin system.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Säynävälammi P,Pörsti I,Pörsti P,Nurmi AK,Seppälä E,Manninen V,Vapaatalo Hdoi
10.1097/00005344-198807000-00012subject
Has Abstractpub_date
1988-07-01 00:00:00pages
88-93issue
1eissn
0160-2446issn
1533-4023journal_volume
12pub_type
临床试验,杂志文章,随机对照试验abstract::We assessed whether local inhibition of myocardial converting enzyme by captopril and zofenopril reduces the functional and metabolic damage caused by ischemia and reperfusion. First we investigated the effects of zofenopril and captopril on the mechanical function, cellular redox state, and norepinephrine (NE) conten...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::The ongoing COVID-19 pandemic has produced serious turmoil world-wide. Lung injury causing acute respiratory distress syndrome seems to be a most dreaded complication occurring in ∼30%. Older patients with cardiovascular comorbidities and acute respiratory distress syndrome have an increased mortality. Although the pr...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0000000000000894
更新日期:2020-10-01 00:00:00
abstract::The effects of the angiotensin converting enzyme (ACE) inhibitors captopril, enalapril, HOE 498, and its prodrug on reperfusion arrhythmias after 15 min of coronary ligation were investigated in the isolated rat heart. Drug concentrations were equipotent in their effect on angiotensin I pressor response. Furthermore, ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1986-07-01 00:00:00
abstract::The effects of 5-hydroxypropafenone (5-OH-P), the main metabolite of propafenone, were studied in guinea pig papillary muscles obtained from untreated animals and from animals pretreated with 5-OH-P, 3 mg/kg for 24 days. In untreated muscles perfused with 2.7 and 5.4 mM K+, 5-OH-P depressed action potential amplitude ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198711000-00005
更新日期:1987-11-01 00:00:00
abstract::Calcium is a signaling element of general importance to cells. In muscle, its key function is the activation of troponin C, which is essential for the contraction of myofibrils in skeletal and heart muscles, and of myosin light chain kinase, which is essential for the contraction of smooth muscles. Calcium modulates t...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1988-01-01 00:00:00
abstract::The development of tolerance to the antihypertensive effect of clonidine and related imidazolines is clinically recognized. Here, we employed a restricted daytime (8:30 AM until 4:30 PM) clonidine regimen to establish a model of sustained hypotension in spontaneously hypertensive rats (SHRs). Blood pressure (BP), hear...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e3180318afb
更新日期:2007-03-01 00:00:00
abstract::The new anti-anginal drug ranolazine causes a slight (<10 milliseconds) prolongation of the QT interval, raising the concern that its use may be associated with an increased incidence of torsades de pointes ventricular tachyarrhythmias. The goal of this study was to show that ranolazine inhibits the late component of ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200408000-00008
更新日期:2004-08-01 00:00:00
abstract::Vasoconstrictor actions of endothelin-1 (ET) were compared between endothelium-removed strips of cerebral (basilar, posterior cerebral, and middle cerebral) and peripheral (coronary and mesenteric) arteries of the dog. ET produced a concentration-dependent contraction in these arteries. A threshold concentration and E...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199204000-00014
更新日期:1992-04-01 00:00:00
abstract::We studied the short-term effects of oral administration of nisoldipine (10 mg) and propranolol (80 mg) alone and in combination in 14 patients with chronic exertional angina pectoris in a double-blind, randomized, cross-over study. The 14 patients (13 men and 1 woman, mean age 56 +/- 7 years) performed symptoms-limit...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-199008000-00020
更新日期:1990-08-01 00:00:00
abstract::We compared the effects of angiotensin II (AII), enalapril, and losartan given by acute intravenous (i.v.) injection, on cardiac baroreflex sensitivity in two groups of conscious normotensive rabbits bred for high gain [> 5 beats/min/mm Hg] (group I) and low gain [< 4 beats/min/mm Hg] (group II) of the mean arterial b...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199503000-00024
更新日期:1995-03-01 00:00:00
abstract::LC3B is a marker of autophagic activity, and growing evidence supports its importance in myocardial hypertrophy. Thus, regulating LC3B expression may provide an important avenue to inhibit autophagy and protect against or inhibit pathological myocardial hypertrophy. To address this question, we investigated the effect...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000306
更新日期:2015-12-01 00:00:00
abstract::The effect of chronic inhibition of nitric oxide (NO) synthesis by NG-nitro-L-arginine methyl ester (L-NAME) on cutaneous ear blood flow (EBF) in the rabbit was examined in vivo with use of laser Doppler flowmetry. Additionally, the efficacy of inhibition of NO by L-NAME was studied ex vivo in isolated preparations of...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199308000-00017
更新日期:1993-08-01 00:00:00
abstract::We produced transgenic mice overexpressing Na+/ H+ exchanger as a model of salt-sensitive hypertension and reported that dietary salt loading elevates blood pressure in these transgenic mice. We speculate that this blood pressure elevation may be attributed to the elevation of intraarterial smooth muscle Ca2+ concentr...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200003000-00024
更新日期:2000-03-01 00:00:00
abstract::Ca sensitivity and sensitivity to diltiazem were studied in two strains of genetically hypertensive rat [spontaneously hypertensive rats (SHRs) and genetically hypertensive (GH) rats] and their normotensive control strains [Wistar-Kyoto (WKY) and normal Wistar (N) rats] at two ages before and after establishment of si...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::During myocardial ischemia, the extracellular potassium concentration increases in a triphasic pattern, an initial early increase, a constant phase, and a late increasing phase. The aim of this study was to determine whether diltiazem inhibits the late increasing phase by maintaining glycolytic adenosine triphosphate ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199710000-00004
更新日期:1997-10-01 00:00:00
abstract::In a multicenter, randomized, double-blind, placebo-controlled study, we evaluated the efficacy and tolerability of the combination of benazepril, 10 mg, and amlodipine, 2.5 or 5 mg once daily, compared with benazepril, 10 mg, monotherapy in patients with hypertension inadequately controlled with angiotensin-convertin...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00005344-199710000-00014
更新日期:1997-10-01 00:00:00
abstract::Epicardial coronary arteries dilate after release of a transient coronary occlusion in awake chronically instrumented dogs but not in anesthetized dogs studied acutely after surgery. To determine whether anesthesia or surgical trauma is responsible for this lack of reactive dilation, we evaluated the effect of anesthe...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::Independent determinations of Ca2+ by two indicators showed that subcellular Ca2+ activity (intracellular free calcium concentration) was heterogeneous in rat myocardial cells. Arsenazo III (Az III), a membrane-impermeant absorbance indicator for Ca2+, was loaded into cardiac muscle via liposomes and calcium quantitat...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Isolated perfused rat kidney was used to examine the possible mechanisms involved in the hypotensive/vasodilator actions of cryptolepine. In kidneys preconstricted by phenylephrine (PE 5-7.5 x 10(-7) M), cryptolepine at bolus doses of 2.5, 5, and 10 micrograms elicited dose-dependent reductions in perfusion pressure b...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199404000-00012
更新日期:1994-04-01 00:00:00
abstract:BACKGROUND:The present study has been designed to investigate the effect of sodium cromoglycate and ketotifen, mast cell stabilizers in hyperhomocysteinemia-induced cardiac hypertrophy in rats. METHODS:Rats were administered L-methionine (1.7 g/kg/day PO) for 8 weeks to produce hyperhomocysteinemia. Sodium cromoglycat...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e31817ae60f
更新日期:2008-06-01 00:00:00
abstract::Nebivolol is a highly selective and lipophilic beta1-adrenergic receptor antagonist with vasodilating characteristics attributed mainly to endothelial generation of nitric oxide (NO). Coincidently, rapid vascular vasodilating effects of estradiol are also widely reported and membrane-initiated signaling by estrogen re...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200405000-00005
更新日期:2004-05-01 00:00:00
abstract::To explore endothelium-dependent relaxation and the L-arginine (L-ARG)-nitric oxide (NO) pathway during chronic hypoxia, we examined isolated rings from large conduit pulmonary arteries and aorta from rats exposed to either room air (N), 3-week hypoxia (H), or 3-week H followed by 72-h recovery to normoxia (room air)....
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199312000-00018
更新日期:1993-12-01 00:00:00
abstract::The different mechanisms of action of beta-blockers and calcium antagonists could result in an additive therapeutic effect in patients with angina pectoris. Twenty-one male patients aged between 41 and 68 years and suffering from chronic stable angina pectoris and coronary artery disease confirmed by angiography took ...
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:1990-01-01 00:00:00
abstract::High blood pressure (BP) is associated with increased risk of vascular disease, including myocardial infarction and stroke. Since drugs that lower BP will reduce the risk of those complications of hypertension that are due to high pressure (strokes due to small-vessel disease, including lacunar infarction and intracer...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1987-01-01 00:00:00
abstract::To elucidate the pathophysiologic significance of endothelin-1 (ET-1) in adrenal and the mechanism for reduced responsiveness to exogenous ET-1 in aldosterone-producing adenoma (APA), we have investigated ET-1 receptors by radioligand binding assay (RBA) in human normal adrenal (NA), APA, idiopathic hyperaldosteronism...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199800001-00059
更新日期:1998-01-01 00:00:00
abstract::The oral anticoagulant edoxaban, a factor Xa inhibitor, will likely be coadministered with digoxin in some patients with atrial fibrillation. Both drugs are substrates for P-glycoprotein. The objective of this phase 1, parallel study was to assess the effects of coadministration of both drugs on their respective pharm...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/FJC.0b013e31826265b6.
更新日期:2012-10-01 00:00:00
abstract::: Interstitial fibrosis is a common pathological change in various heart diseases, especially cardiac hypertrophy. Arginine vasopressin (AVP), one of the hallmarks of heart failure, exhibits a profibrotic effect by promoting the proliferation and differentiation of cardiac fibroblasts (CFs). In contrast, angiotensin-(...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000151
更新日期:2014-12-01 00:00:00
abstract::The cardiovascular properties of Ro 13-6438 (R-6-chloro-1,5-dihydro-3- methylimidazo -[2,1-b] quinazolin -2[ 3H]-one), a novel nonglycoside , noncatechol cardiotonic agent, were investigated in vitro and in vivo by both intravenous and oral administration. Ro 13-6438 increased tension development of isolated guinea pi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198405000-00021
更新日期:1984-05-01 00:00:00
abstract::Mesenteric resistance arteries (internal diameter 174-337 microns) from rats, rabbits, pigs, and humans were isolated and mounted in a myograph. In all preparations, phenylephrine (alpha 1-adrenoceptor agonist) evoked concentration-dependent contractions that were antagonized by prazosin (alpha 1-adrenoceptor antagoni...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199107000-00002
更新日期:1991-07-01 00:00:00
abstract::Cardiac hypertrophy causes heart failure and is associated with hyperglycemia in patients with diabetes mellitus. Mibefradil, which acts as a T-type calcium channel blocker, exerts beneficial effects in patients with heart failure. In this study, we explored the effects and mechanism of mibefradil on high-glucose-indu...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000844
更新日期:2020-08-01 00:00:00