Abstract：
:We studied the kinetics of amiodarone in three healthy volunteers after single oral (400 mg) and intravenous (150 mg) doses and in six patients with supraventricular tachycardia. Three patients were studied after the first oral dose (400 mg) and during subsequent therapy (200 mg/day); the other three after 5 mg/kg of amiodarone intravenous. Blood was drawn at intervals for 24 h in patients and up to 32 h (i.v.) and 50 h (p.o.) from healthy volunteers. The drug was measured by high pressure liquid chromatography (HPLC). No difference in kinetic parameters was found between healthy subjects an patients. The pharmacokinetic parameters, calculated on the intravenous data using a two-compartment open model, indicate a very large volume of distribution (9.26-17.17 L/kg in healthy volunteers and 6.88-21.05 L/kg in patients). The elimination half-life ranged from 12.09 to 20.70 h in volunteers and from 11.60 to 19.60 h in patients. Oral absorption was slow an erratic, with fourfold individual variations in systemic bioavailability (22-86%). A slight accumulation of amiodarone was observed in patients under chronic treatment.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Riva E,Gerna M,Latini R,Giani P,Volpi A,Maggioni Adoi
10.1097/00005344-198203000-00015subject
Has Abstractpub_date
1982-03-01 00:00:00pages
264-9issue
2eissn
0160-2446issn
1533-4023journal_volume
4pub_type
杂志文章abstract：:alpha-Adrenoceptor agonists and antagonists are widely used perioperatively for internal mammary artery (IMA)-coronary artery bypass operations. To determine subtypes of alpha-adrenoceptors in the human IMA, we studied responses of isolated human IMA segments to alpha-adrenoceptor agonists, antagonists, and electrical...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:The present study was designed to evaluate the effects of big endothelin (ET) on renal hemodynamics and excretory functions in rats with experimental congestive heart failure (CHF) produced by aortocaval fistula. Clearance studies were performed in control and in chronic (7 day) CHF rats. Administration of bit ET (1 a...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:The selectivity of single oral doses of xamoterol, 200 mg, prenalterol, 50 mg, and salbutamol, 8 mg, was compared in eight healthy male volunteers by measuring their effects on sleeping heart rate, supine heart rate, blood pressure, forearm blood flow, finger tremor, and exercise heart rate in the presence and absence...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00005344-198805000-00006
更新日期：1988-05-01 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：:Stroke is a major clinical problem in hypertension. Cerebral hemorrhage has become considerably less frequent since treatment of hypertension has become more widely used. Antihypertensive treatment has also reduced the incidence of lacunar stroke, which is a result of hypertensive vascular disease of small arteries. C...
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：:We compared the beta-adrenoceptor blocking actions of bupuranolol and propranolol using the response to isoprenaline of the strength of contraction of the canine blood-perfused ventricular muscle, of the rate and strength of contraction of the isolated guinea pig heart and of a guinea pig tracheal ring preparation. Th...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-197903000-00004
更新日期：1979-03-01 00:00:00
abstract：:Chronic heart failure (HF) is associated with increased systemic (plasma) and reduced local (myocardial) adenosine levels. The final biological action of adenosine in a particular organ or cell population may depend on the relative degree of expression and signaling efficiency of individual adenosine receptor (AR) sub...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0b013e31821dcc0b
更新日期：2011-08-01 00:00:00
abstract：:We investigated the effect of NIP-121, a novel ATP-sensitive K+ channel opener, on myocardial damage during ischemia/reperfusion. The action potential and contractile force of coronary-perfused guinea pig right ventricular walls were recorded. The preparations were subjected to 30-min no-flow ischemia with or without ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199605000-00012
更新日期：1996-05-01 00:00:00
abstract：:Warfarin international normalized ratio (INR)-related phenotypes such as the percentage of INR time in the therapeutic range (PTTR) and INR variability are associated with warfarin adverse reactions. However, INR-related phenotypes greatly vary among patients, and the underlying mechanism remains unclear. As a key cof...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0000000000000834
更新日期：2020-07-01 00:00:00
abstract：:In this study, we used the spontaneously beating, isolated rat right atrium as an in vitro model to study arrhythmogenic effects of electrical stimulation. A tetrapolar platinum electrode was used for stimulation and recording of atrial electrical activity at 36.5 degrees C (spontaneous rate, 4.9+/-0.3 Hz). A flutter-...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199910000-00001
更新日期：1999-10-01 00:00:00
abstract：:The aim of this study was to examine the electrophysiological effects of isoprenaline, phenylephrine, and noradrenaline on sheep Purkinje fibers in vitro, superfused either with a normal or with a modified physiological salt solution (PSS) designed to mimic some of the conditions occurring during mild myocardial ische...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198902000-00018
更新日期：1989-02-01 00:00:00
abstract：:The effects of divalent cations on human platelet vasopressin receptor binding characteristics and effects of receptor occupancy on endogenous protein phosphorylation were investigated. Binding of vasopressin to its receptor is modulated by both the nature and the concentration of ions. Whatever the cation present, gu...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198707000-00004
更新日期：1987-07-01 00:00:00
abstract：:The effect of two dihydropyridine derivatives, nifedipine and felodipine, on myocardial blood flow distribution 1 h after ligation of the left anterior descending coronary artery (LAD) was studied in open-chest dogs by means of radioactive microspheres. The myocardium normally perfused from the LAD was first labeled w...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198507000-00003
更新日期：1985-07-01 00:00:00
abstract：:The heavy impact of obesity on the development and progression of cardiovascular disease has sparked sustained efforts to uncover the mechanisms linking excess adiposity to vascular dysfunction. In addition to its well-established role in maintaining vascular homeostasis, the endothelium has been increasingly recogniz...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0000000000000469
更新日期：2017-06-01 00:00:00
abstract：:The preproendothelin-1 (preproET-1) gene is induced by thrombin after phosphorylation of nonreceptor protein tyrosine kinase pathways. This study investigated the contribution of Ca2+/calmodulin-dependent intracellular signaling cascades to this pathway and measured ET-1 mRNA levels by Northern blot analysis in human ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:One possible mechanism that accounts for the alterations observed in varicose veins is the activation of endothelial cells by ischemia occurring in the leg veins during blood stasis and the cascade of reactions that follows. Because in vitro data suggest that endothelium alteration is a key event in the development of...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00005344-199901000-00002
更新日期：1999-01-01 00:00:00
abstract：:Carvedilol (20 mg/kg, bid) or vehicle was given to rats surviving a myocardial infarction (MI) 24 h (n = 409). In rats with large MI, carvedilol partially preserved left ventricular (LV) function and intrinsic myocardial contractility and reactivity to beta-adrenergic stimulation. Carvedilol led to scar thickening, in...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200201000-00009
更新日期：2002-01-01 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：:Vasopressin is an essential hormone involved in the maintenance of cardiovascular homeostasis. It has been in use therapeutically for many decades, with an emphasis on its vasoconstrictive and antidiuretic properties. However, this hormone has a ubiquitous influence and has specific effects on the heart. Although diff...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0000000000000092
更新日期：2014-07-01 00:00:00
abstract：:The goal of this study was to determine the effects of trimetazidine on all-cause mortality and heart failure hospitalizations in patients with ischemic cardiomyopathy. We performed an extension to 48 months and a post-hoc analysis of the Villa Pini d'Abruzzo trimetazidine trial; in this single-center, open-label, ran...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1097/FJC.0b013e31814fa9cb
更新日期：2007-11-01 00:00:00
abstract：:Chemokines are small secreted proteins with chemoattractant properties that play a key role in inflammation, metastasis, and embryonic development. We previously demonstrated a nonchemotactic role for one such chemokine pair, stromal cell-derived factor-1α and its G-protein coupled receptor, CXCR4. Stromal cell-derive...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0b013e3181f713fe
更新日期：2010-11-01 00:00:00
abstract：:During ischemia-reperfusion an imbalance between endothelin (ET) and nitric oxide (NO) can be responsible for microcirculatory disturbances. The aim of this study was to restore the ET/NO balance to reduce the ischemia-reperfusion injury. Hepatic ischemia was induced for 30 min in 56 Wistar rats. Sham operation, ische...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200036051-00064
更新日期：2000-11-01 00:00:00
abstract：:The effects of a new nitrate ester derivative, ITF 296, on large conductance and small resistance coronary arteries were investigated and compared with those of nitroglycerin and isosorbide dinitrate in chronically instrumented conscious dogs with an intact or with a deendothelialized large coronary artery. In a wide ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:Atrial Fibrillation (AF) is accompanied by an increased risk for thromboembolic events in most affected patients. Current guidelines therefore recommend antithrombotic therapy with vitamin K antagonist (VKA) or non VKA oral anticoagulant (NOAC) in the majority of AF patients. Current AF treatment guidelines recommend ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0000000000000297
更新日期：2015-12-01 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：:The study objective was to characterize the electrophysiologic interactions of procainamide (PA) and its metabolite, N-acetylprocainamide (NAPA), in canine Purkinje fibers. Cell (N = 43) action potentials were measured in Tyrode's solution (K+ = 4.0 mM, 36 degrees C) at a basic cycle length of 1,000 ms using standard ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199208000-00004
更新日期：1992-08-01 00:00:00
abstract：:To assess flecainide's ability to suppress ventricular fibrillation during reperfusion, we compared flecainide acetate (2 mg/kg i.v.) with saline placebo in 50 pentobarbital-anesthetized dogs undergoing proximal anterior descending coronary artery occlusion for 20 min followed by sudden release. Treatment selection wa...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:Studies were undertaken to establish the regional hemodynamic profile and dose-response relation of the adenosine triphosphate (ATP)-dependent potassium channel activator lemakalim in anesthetized rats. In addition, the ability of the sulphonylurea potassium channel blocker glybenclamide to reverse the hemodynamic eff...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199701000-00008
更新日期：1997-01-01 00:00:00
abstract：:This paper presents results on the function of the adrenal medulla, especially the influence of substance P (SP) on the cholinergic-adrenergic interaction. Interconnections between the function of SP and its role in the development and maintenance of hypertension as well as its role in stress and adaptation are invest...
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：:The haemodynamic effects of three different methods of nitrate administration [intravenous (i.v.) isosorbide dinitrate (ISDN) and buccal and transdermal nitroglycerin (NTG)] were evaluated in 36 patients with acute left ventricular failure due to a recent myocardial infarction. Similar reductions in pulmonary artery o...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198911000-00012
更新日期：1989-11-01 00:00:00
