Abstract:
:The in vivo vasoconstrictor effect of endothelin-1 (ET-1) was investigated on feline and canine basilar arteries. The basilar artery caliber was angiographically measured after either vertebral artery perfusion or cisternal injection of the peptide. In both cats and dogs, ET-1 (5-500 pmol) induced a dose-dependent basilar artery contraction in vivo when applied intracisternally. The vasoconstriction was extremely long lasting; no significant recovery of vessel caliber was observed up to 12 h after injection. In contrast, bolus injection of ET-1 up to 3 nmol into the vertebral artery had no appreciable effect on the basilar artery caliber. These observations suggest that ET-1 acts in cerebral vessels from the adventitial but not from the luminal side, possibly due to the presence of the blood-brain barrier. The long-lasting nature of the ET-1-induced constriction of the cerebral arteries in vivo suggests that the peptide might be involved in the pathogenesis of cerebral vasospasm.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Shigeno T,Mima T,Takakura K,Yanagisawa M,Saito A,Goto K,Masaki Tdoi
10.1097/00005344-198900135-00047subject
Has Abstractpub_date
1989-01-01 00:00:00pages
S174-6eissn
0160-2446issn
1533-4023journal_volume
13 Suppl 5pub_type
杂志文章abstract::In response to acetylcholine, endothelial cells were shown to release a nonprostanoid factor, called endothelium-derived relaxing factor (EDRF), which caused relaxation of vascular smooth muscle. Since this discovery in 1980, many additional agents have been shown to stimulate release of EDRF from endothelium. Biologi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 00:00:00
abstract::Chronic stimulation of beta-adrenoceptors with isoproterenol induces alteration of vascular reactivity and increases local pro-inflammatory cytokines. We investigated whether fenofibrate and pioglitazone, PPAR-alpha and -gamma agonists, respectively, improve the changes in vascular reactivity induced by isoproterenol....
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e31818a8927
更新日期:2008-11-01 00:00:00
abstract::The effects of exogenous guanosine 5'-triphosphate (GTP) and guanosine on nitroglycerin-, sodium nitrite- and SIN-1-induced guanosine 3',5'-cyclic monophosphate (cyclic GMP) accumulation and smooth muscle relaxation were studied using endothelium-denuded rat mesenteric artery rings precontracted with noradrenaline. Pr...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199112000-00013
更新日期:1991-12-01 00:00:00
abstract::We investigated the effects of the new beta-adrenoceptor antagonist, bopindolol, on stimulated renin secretion and on renal function in conscious rats. Intravenous doses of 10, 31.6, and 100 micrograms/kg of bopindolol antagonized the rise in plasma renin activity (PRA) induced by the administration of isoproterenol (...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198906000-00008
更新日期:1989-06-01 00:00:00
abstract::Sixteen nonhospitalized men, average age 41.3 years with essential hypertension (WHO I-II) were given nifedipine slow-release tablets of 20 mg twice daily for 48 weeks. Both supine and standing blood pressure values were significantly reduced, but heart rate was not significantly changed by the drug. A significant dec...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198501000-00003
更新日期:1985-01-01 00:00:00
abstract::Evidence for the hypothesis that the rise in peripheral resistance that occurs in inherited hypertension is due largely to the observed rise in the circulating level of a sodium transport inhibitor is reviewed. A sequence of events is proposed linking a postulated genetic defect in the kidney's ability to excrete sodi...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-198400061-00012
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::We undertook a systematic comparison of the effects of diltiazem and nifedipine and a nonspecific vasodilator, sodium nitroprusside, on renal perfusion, function, and activation of potentially relevant neurohormonal systems in the anesthetized dog. These agents were employed to reduce blood pressure to two levels, a m...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198601000-00006
更新日期:1986-01-01 00:00:00
abstract::The mechanism by which nicotine causes peripheral vasoconstriction and its relationship to the increased risk of peripheral vascular disease in smokers are unknown. To study the peripheral vascular effects of nicotine, we measured hemodynamic responses and oxygen consumption of the in situ gracilis muscle during intra...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199110000-00009
更新日期:1991-10-01 00:00:00
abstract::Endocannabinoids, such as anandamide and 2-arachidonoylglycerol, are synthesized from membrane phospholipids in the heart and other cardiovascular tissues. They activate cannabinoid CB1 and CB2 receptors, transient receptor potential V1 (TRPV1), peroxisome proliferator-activated receptors, and perhaps a novel vascular...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e318192671d
更新日期:2009-04-01 00:00:00
abstract::Our earlier study in vivo showed that a lower dose of acetylsalicylic acid (ASA) brought greater enhancement in fibrin gel permeability (Ks) than a higher dose. To assess whether this finding related to modifications of fibrinogen clotting property by ASA, purified fibrinogen was incubated with ASA and/or salicylic ac...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e3181953e0f
更新日期:2009-01-01 00:00:00
abstract::Vasopressin is the primary physiological factor regulating renal water reabsorption in mammals. Inhibitors of vasopressin-stimulated water reabsorption have previously been used as water diuretic agents in both experimental animals and man. The present studies describe and characterize the pharmacological effects of t...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198600087-00008
更新日期:1986-01-01 00:00:00
abstract::The usual drugs for migraine attacks carry risks of increased frequency, resistance to other treatment, drug dependency, and abuse. Ergotamines may also be vascular risk factors. Alternative drugs without these risks would be useful. Flunarizine could be an alternative. Migraine cannot be reduced to molecular pathophy...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
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::Endothelial dysfunction is the pathophysiologic principle involved in the initiation and progression of arteriosclerosis, thus endothelial function serves as a "barometer" for cardiovascular health that can be used for the evaluation of new therapeutic strategies. This review provides an introduction to the concept of...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-200606001-00007
更新日期:2006-01-01 00:00:00
abstract::A double-blind randomised, parallel, placebo-controlled study was performed in patients with congestive heart failure, at 13 centres in 10 countries, to assess the efficacy and safety of lisinopril, a new angiotensin-converting enzyme inhibitor. After a 2-week run-in period, 130 patients receiving digoxin and/or diure...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-198700003-00021
更新日期:1987-01-01 00:00:00
abstract::In the absence of formal clinical trials, the efficacy of thiazide diuretics in patients with renal impairment remains in doubt. Our study was therefore designed to evaluate the separate and combined effects of single and multiple doses of hydrochlorothiazide (HCTZ) and furosemide (FU) on the glomerular filtration rat...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-199509000-00008
更新日期:1995-09-01 00:00:00
abstract::Calcium channel blockers (CCBs) have variable efficacy in the treatment of heart failure. We hypothesized that modulation of left ventricular diastolic pressure (LVDP) may play a role in the variable efficacy of CCBs in this condition. Isolated perfused hearts from 200- to 250-day-old UM-X7.1 cardiomyopathic hamsters ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200307000-00022
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND:The sympathetic nervous system (SNS) of the whole body, including cardiac sympathetic nerves, is activated in patients with severe congestive systolic heart failure (CHF). Carvedilol can improve clinical status in such patients. This study aimed to determine how carvedilol acts on the SNS to improve CHF. ME...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/FJC.0b013e31823a94a2
更新日期:2012-02-01 00:00:00
abstract::In untreated hypertensive patients, blood pressure is decreased during the hours that follow a single bout of exercise, but the mechanisms involved are as yet unknown. As antihypertensive chemotherapy may interfere with cardiovascular regulation, we investigated the effects of calcium antagonism with isradipine (slow-...
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 role of pressure-sensitive mechanoreceptors (PSMRs) in histamine-stimulated nitric oxide release from cultured human endothelial cells was investigated, using our new method (helium pack method). PSMRs were stimulated by various levels of pressure applied in addition to atmospheric pressure (40, 80, 120, and 160 m...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199204002-00020
更新日期:1992-01-01 00:00:00
abstract::Platelet-derived growth factor (PDGF) is a potent stimulator of growth of vascular smooth muscle cells (VSMCs). VSMCs from spontaneously hypertensive rats (SHRs) show exaggerated growth and increasingly express PDGF A-chain messenger RNA (mRNA). To examine adenovirus-mediated transfer of a ribozyme targeting the PDGF ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200206000-00011
更新日期:2002-06-01 00:00:00
abstract::Human saphenous veins were obtained at operation and assayed immediately (n = 10). The veins were cut into rings, suspended in organ chambers, and connected to force transducers for recording of isometric tension. One ring served as control; others were treated with either the alpha 1-adrenoceptor antagonist prazosin ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract::An open randomized hospital study conducted in 169 centers in France compared the blood pressure response to the first 36 h of treatment with perindopril (PER), 2 mg once daily, with that to captopril (CAP), 6.25 mg t.i.d., in 725 patients (mean age, 70 years; men, 67%) with echocardiographic left ventricular systolic...
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:10.1097/00005344-199906000-00017
更新日期:1999-06-01 00:00:00
abstract::In this study the effects of a new calcium entry blocking agent, 2,6-dimethyl-3-methoxycarbonyl-4-(2-nitrophenyl)-5-(2-furoyl)-1, 4-dihydropyridine (MDL 72567), were compared with those of nifedipine on blood pressure, heart rate, ECG, and cardiac contractility indices in conscious sinoaortic baroreceptor-denervated (...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198710000-00012
更新日期:1987-10-01 00:00:00
abstract::Several studies were performed to evaluate the degree of inhibition of angiotensin-converting enzyme (ACE) by an ACE inhibitor by assessing the blood pressure response to a continuous i.v. infusion of increasing doses of angiotensin I in healthy volunteers. We assessed pharmacokinetic and pharmacodynamic interactions ...
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:1994-01-01 00:00:00
abstract::Hypertension is associated with dyslipidemia, which is a significant risk factor for cardiovascular complications. This study was undertaken to investigate the effects of veratric acid (VA) on blood pressure, plasma, and tissue lipid profile in N-nitro-L-arginine methyl ester (L-NAME)-induced hypertensive rats. Hypert...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e31824f9174
更新日期:2012-06-01 00:00:00
abstract::With chronic angiotensin converting enzyme (ACE) inhibition, blood pressure remains controlled throughout the day despite intermittent recovery of normal function of the renin-angiotensin system. This has been taken as evidence to suggest that the disappearance of angiotensin II (Ang II) from the circulation is not th...
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::In this study the contribution of alternating architecture and Ca2+ handling of mitochondria to cytosolic Ca2+ homeostasis was elucidated under normoglycemic and hyperglycemic (HGC) conditions in the human endothelial cell line EA.hy926. Exposure of endothelial cells to hyperglycemic medium elevated basal cytosolic fr...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000139449.64337.1b
更新日期:2004-10-01 00:00:00
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...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-198807000-00012
更新日期:1988-07-01 00:00:00