Abstract:
:The mechanism of natriuresis with calcium entry blockers such as felodipine is largely unexplained. As these drugs prevent sodium retention following exogenous angiotensin II, the natriuretic effect of felodipine might be due to a similar interaction with endogenous angiotensin II. In such a case, angiotensin converting enzyme inhibition with ramipril should prevent natriuresis with felodipine. We tested this hypothesis in a randomized, double-blind, crossover study in 12 male volunteers by comparing intravenous felodipine after 1 week of oral ramipril with felodipine after placebo and with solvent after ramipril. Ramipril pretreatment reduced ACE activity to 11 +/- 1%, lowered the blood pressure, and increased renal blood flow. However, ramipril pretreatment did not prevent the pronounced increase in natriuresis and diuresis with felodipine. Fractional sodium excretion only tended to increase less during felodipine after ramipril than during felodipine after placebo (absolute changes of + 1.2 +/- 0.2 and + 1.7 +/- 0.2%, respectively; p = 0.07). Ramipril did not influence the felodipine-mediated blood pressure reduction and renal vasodilation. In conclusion, ACE inhibition has no significant effect on the natriuretic and hemodynamic effects of felodipine, suggesting that mechanisms other than interaction with endogenous angiotensin II are involved in these effects of calcium entry blockers.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
van Hamersvelt HW,Wetzels JF,Kloke HJ,Koene RA,Huysmans FTdoi
10.1097/00005344-199303000-00018subject
Has Abstractpub_date
1993-03-01 00:00:00pages
471-7issue
3eissn
0160-2446issn
1533-4023journal_volume
21pub_type
临床试验,杂志文章,随机对照试验abstract::To evaluate the safety and pharmacologic activity of ITF 296 in humans, three groups of healthy male normotensive subjects were studied. The first two groups (six subjects each) received, in ascending order, three dose levels of ITF 296 by 30-min intravenous infusion (group I, 0.1, 0.5, 1.0 microgram/kg/min; group II,...
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:1995-01-01 00:00:00
abstract::[125I]Endothelin-1 (ET-1) was administered intravenously into rats, and binding sites in various tissues were examined by electron-microscopic radioautography. Labeling was observed predominantly on the glomerular fenestrated endothelial cells of kidney, alveolar capillary endothelial cells of lung, fat-storing cells ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199100177-00130
更新日期:1991-01-01 00:00:00
abstract::We previously reported on the development of a pathway-selective estrogen receptor (ER) ligand, WAY-169916, that has ER-dependent antiinflammatory activity and is devoid of classic ER transcriptional activity. In the current study, WAY-169916 and 17beta-estradiol (17beta-E2) were evaluated for protective activity in m...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000211793.60528.f7
更新日期:2006-06-01 00:00:00
abstract::The objective this investigation was to determine the relative importance of type I, III, and IV phosphodiesterases in the regulation of cyclic adenosine monophosphate (cAMP) in the renal circulation. In the first experimental series, four groups of isolated rat kidneys perfused with Tyrode's solution were stimulated ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199712000-00015
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:A substantial proportion of patients with heart failure have a normal ejection fraction and diastolic dysfunction. However, there are few data available to guide the therapy of these patients. The effects of statins on cardiac remodeling are well documented in animal models and it is reported that statin the...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e31815bb629
更新日期:2008-01-01 00:00:00
abstract::Alterations in the function and structure of the blood vessel wall account for most clinical events in the coronary and cerebrovascular circulation such as myocardial infarction and stroke. Cardiovascular drugs may exert beneficial effects on the vascular wall both at the level of the endothelium and vascular smooth m...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-200112003-00002
更新日期:2001-12-01 00:00:00
abstract::The evolutionary relationships among 17 protein and nucleic acid sequences from the sarafotoxin/endothelin/endothelin-like superfamily of peptides were studied. The endothelin/endothelin-like gene family has diverged from an ancestral gene that has experienced an exon duplication event followed by two complete gene du...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199100177-00148
更新日期:1991-01-01 00:00:00
abstract::Simvastatin (SV), an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity inhibits migration and proliferation of vascular smooth muscle cells (SMC). To investigate whether these effects of SV are related to inhibition of cell calcium mobilization, cultured SMC obtained from rat aorta were l...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199603000-00011
更新日期:1996-03-01 00:00:00
abstract:AIMS:To determine whether short-term treatment with trimetazidine (TMZ), an antiischemic agent that directly inhibits fatty acid oxidation and results in stimulation of glucose oxidation, may improve myocardial perfusion and left ventricular systolic function in diabetic patients with ischemic cardiomyopathy. METHODS ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/FJC.0b013e31817bdd66
更新日期:2008-06-01 00:00:00
abstract::The integration of the needs of children into the legal drug development process since 1997 in the United States and since 2007 in the European Union has improved health and stimulated innovative approaches in the design of clinical trials and will benefit both current and future populations. According to the US Food ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e31822233c1
更新日期:2011-09-01 00:00:00
abstract::The adrenal medulla and pheochromocytomas are known to secrete various neuropeptides and vasoactive peptides. On the other hand, the production and secretion of peptides by adrenocortical tumors have not been studied in detail. The study reported here therefore set out to examine these two functions for two vasoactive...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200036051-00114
更新日期:2000-11-01 00:00:00
abstract::Some calcium antagonists, including nitrendipine, were noted to cause a dose-dependent and reversible inhibition of insulin release in certain animal models. Therefore, it is important to know the effects of clinical treatment with calcium antagonists in nondiabetic or diabetic man. A review of the literature allows t...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1984-01-01 00:00:00
abstract::The dynamic regulation of the adrenergic system plays an important role in the adaptation of the cardiovascular system in health and in disease. In myocardial infarction, large quantities of catecholamines are presynaptically released. The mechanisms of adaptive regulation of the beta-adrenergic receptors to beta-agon...
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::Loop diuretics could adversely influence prognosis due to activation of neurohumoral mechanism in the long term. Previous study showed torasemide, a loop diuretic with anti-aldosteronergic properties, was associated with lower mortality in patients with chronic heart failure (CHF). We evaluated the effects of torasemi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1097/FJC.0b013e3181a717f7
更新日期:2009-06-01 00:00:00
abstract::Using the radioactive microsphere technique, we studied the acute systemic and regional hemodynamic effects of felodipine (10, 30, and 100 nmol/kg, i.v.) in conscious renal hypertensive rabbits. A dose-dependent decrease in arterial blood pressure was observed after felodipine administration, accompanied by tachycardi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198407000-00025
更新日期:1984-07-01 00:00:00
abstract::We studied 12 patients receiving either chronic oral (p.o.) maintenance bretylium and/or acute intravenous (i.v.) bretylium to evaluate drug efficacy and pharmacokinetics. All patients were survivors of ventricular tachycardia or fibrillation. A new assay for bretylium was applied, and it proved sensitive and reliable...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198105000-00008
更新日期:1981-05-01 00:00:00
abstract::Apoptosis of vascular cells is observed in vivo in normal vessel development and a variety of vascular pathologies. Apoptosis occurs in all cell types within the vessel wall, the consequences of which depend on both cell type and the pathology under study. The death receptor Fas is expressed throughout the vessel wall...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e318198fe60
更新日期:2009-02-01 00:00:00
abstract::In helical strips of dog cerebral, coronary, mesenteric, and renal arteries treated with ONO3708, an inhibitor of vasoconstricting prostaglandin (PG) receptors, and previously contracted with serotonin, PGF2 alpha, PGD2 and epithio-methano thromboxane A2 (sTxA2), a TxA2 analog, caused a relaxation. The cerebral arteri...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198803000-00014
更新日期:1988-03-01 00:00:00
abstract::With increasing age, cardiac beta-adrenoceptor function decreases. To study possible mechanisms underlying this process, we assessed in right atrial appendages from 52 patients of different ages (group A, < 20 years, mean age 3.7 +/- 1.0 years, n = 20; group B, 20-50 years, mean age, 37.9 +/- 2.3 years, n = 9; group C...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/00005344-199507000-00004
更新日期:1995-07-01 00:00:00
abstract::We investigated the effect of oral ibopamine (SB 7505) on myocardial and renal function in eight patients suffering from congestive heart failure. Ibopamine was administered orally 50 mg twice a day for 7 days. Systolic time intervals PEP (preejection period) and EMS (electromechanical systole) decreased significantly...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198205000-00014
更新日期:1982-05-01 00:00:00
abstract::It has been proposed that cholinergic agonists inhibit the sinoatrial node discharge by shifting the activation range of the hyperpolarization-activated inward current If to more negative values or by increasing potassium conductance. In the former instance, cesium will potentiate the cholinergic inhibition by blockin...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200102000-00005
更新日期:2001-02-01 00:00:00
abstract::(+/-)-Dobutamine at concentrations < or =10(-5) M did not evoke contractions of rat gastric artery segments. However, when the tissues were contracted with methoxamine, (+/-)-dobutamine evoked concentration-dependent relaxation. The relaxant responses were not significantly affected by propranolol. In the same prepara...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199911000-00015
更新日期:1999-11-01 00:00:00
abstract::The pathogenic mechanism of nicotine, a major product of smoking, on vascular endothelial cells is not well defined yet. The purpose of this study was to determine whether chronic exposure to nicotine alters angiogenic activity in human umbilical vein endothelial cells and to identify a potential role for endothelial ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e318206b5d9
更新日期:2011-03-01 00:00:00
abstract::A plethora of studies have demonstrated that cardiomyopathy represents a serious source of morbidity and mortality in patients with diabetes. Yet, the underlying mechanisms of diabetic cardiomyopathy are still poorly understood. Of interest, cytochrome P450 2J (CYP2J) and soluble epoxide hydrolase (sEH) are known to c...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000707
更新日期:2019-09-01 00:00:00
abstract::Acute exposure of human saphenous vein or internal thoracic artery endothelium to either morphine [27.4 +/- 3.7 and 35.4 +/- 4.1 nM nitric oxide (NO), respectively] or anandamide (18.3 +/- 2.2 and 24.3 +/- 3.0 nM, respectively) results in NO release, whereas exposure to the human immunodeficiency virus envelope protei...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199806000-00009
更新日期:1998-06-01 00:00:00
abstract::Lisinopril (LIS) is a lysine analog of enalaprilat, the active metabolite of enalapril, an angiotensin-converting enzyme inhibitor (ACEI). Unlike enalapril, the precursor of enalaprilat, LIS is not a prodrug but has equal ACEI efficacy and potency and a slightly longer duration of action after oral administration. Sho...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/00005344-198700003-00010
更新日期:1987-01-01 00:00:00
abstract::Calcium channel blockade appears to be at least as effective as beta-blockade in the treatment of anginal syndromes, but whether a similar protective effect is afforded against sudden death is unknown. In order to compare experimental antifibrillatory effects of calcium channel blockade (diltiazem), beta-adrenoceptor ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198409000-00007
更新日期:1984-09-01 00:00:00
abstract::This open, general practice study looked at the pharmacokinetics of ramipril over a period of 1 year in elderly (greater than 65 years) hypertensive patients. Ten patients with a diastolic blood pressure between 95 and 125 mm Hg were treated with 5 mg of ramipril daily for 4 weeks, followed by an additional 11 months ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::In 22 patients with stable myocardial ischemia, we prospectively studied the short- and long-term effects of isosorbide-5-mononitrate (5-ISMN) on dipyridamole-induced myocardial ischemia, the ability of dipyridamole-stress echocardiography to evaluate nitrate tolerance, and the role of activation of the neurohumoral s...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-200007000-00007
更新日期:2000-07-01 00:00:00
abstract::We previously showed that preoperative nicorandil, a hybrid potassium channel opener and nitrate compound, conferred cardioprotective effects in a hypoxia/reoxygenation model of isolated human atrial muscle by using functional recovery as an end point, and that ischaemic preconditioning surprisingly abolished the prot...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199801000-00011
更新日期:1998-01-01 00:00:00