Effects of R 56,865, a preventer of cellular calcium overload, on left ventricular diastolic properties during pacing-induced ischemia in dogs.

Abstract:

:The effects of R 56,865, a compound with unusual calcium antagonistic properties, on altered left ventricular (LV) diastolic properties were studied during pacing-induced ischemia in dogs with coronary stenosis. Severe coronary artery stenosis was produced on both the left anterior descending (LAD) and circumflex (Cx) coronary arteries in anesthetized beta-blocked dogs. The right atrium was paced at 200 beats/min for 3 min. In the post-pacing period and before drug intervention, the most characteristic observation was a significant increase in LV end-diastolic pressure (LVEDP) and in the time constant of (tau) LV pressure decrease; after return of LV hemodynamics to baseline values (15 min), R 56,865 (0.16 mg.kg-1) or solvent (control) was injected and four subsequent pacing runs were performed at 30-min intervals. In the postpacing period of these four subsequent runs, there was a steep increase in LVEDP and tau-values while HR returned more slowly to baseline values. After R 56,865 infusion, the increase in LVEDP and tau-values was significantly lower than in the pretreatment run and all LVEDP values were significantly lower than in the control group. We conclude that R 56,865 effectively attenuates ischemia-induced changes in LV diastolic stiffness.

journal_name

J Cardiovasc Pharmacol

authors

Vandeplassche G,Hermans C,Wouters L,Borgers M

doi

10.1097/00005344-199104000-00015

subject

Has Abstract

pub_date

1991-04-01 00:00:00

pages

621-6

issue

4

eissn

0160-2446

issn

1533-4023

journal_volume

17

pub_type

杂志文章
  • Effects of prostacyclin on contractile properties of isolated mammalian cardiac muscle.

    abstract::We studied the influence of prostacyclin (PGI2) on the contractile performance of isolated mammalian ventricular muscle. PGI2 had no direct influence on myocardial contractility, as evidenced by experiments on single cardiac cells and papillary muscle. Moreover, PGI2 did not interfere with the inotropic action of isop...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198509000-00025

    authors: Couttenye MM,De Clerck NM,Herman AG,Brutsaert DL

    更新日期:1985-09-01 00:00:00

  • Effects of the H2-receptor agonist impromidine in human myocardium from patients with heart failure due to mitral and aortic valve disease.

    abstract::We determined stimulation rates of cardiac adenylate cyclase activity by isoproterenol and impromidine in particulate sarcolemmal membrane preparations from human papillary muscles resected during open heart replacement of mitral and aortic valves. In addition, specific receptor binding studies with [3H]dihydroalpreno...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198307000-00017

    authors: Baumann G,Mercader D,Busch U,Felix SB,Loher U,Ludwig L,Sebening H,Heidecke CD,Hagl S,Sebening F,Blömer H

    更新日期:1983-07-01 00:00:00

  • Chronic hypoxia-induced cardiopulmonary changes in three rat strains: inhibition by the endothelin receptor antagonist SB 217242.

    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

    authors: Underwood DC,Bochnowicz S,Osborn RR,Louden CS,Hart TK,Ohlstein EH,Hay DW

    更新日期:1998-01-01 00:00:00

  • Antihypertensive therapy with the long-acting calcium antagonist nitrendipine.

    abstract::The antihypertensive efficacy of the calcium entry blocker nitrendipine administered as monotherapy (20-80 mg; mean, 36/day) on the average for 144 days to 46 patients with essential hypertension (WHO I and II) was investigated in relation to age, pretreatment blood pressure, and plasma renin activity. In addition, we...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Müller FB,Bolli P,Erne P,Block LH,Kiowski W,Bühler FR

    更新日期:1984-01-01 00:00:00

  • Effect of fenofibrate on lipoprotein(a) in hypertriglyceridemic patients: impact of change in triglyceride level and liver function.

    abstract::We investigated the effect of fenofibrate on lipoprotein(a)levels in hypertriglyceridemic patients and the parameters relating to its effect. Patients with a triglyceride level >/=300 mg/dL or with a triglyceride level >/=200 mg/dL and a high density lipoprotein cholesterol level

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/01.fjc.0000175875.48167.c7

    authors: Ko HS,Kim CJ,Ryu WS

    更新日期:2005-10-01 00:00:00

  • Contrasting cardiovascular responses from intrathecal administration of epinephrine and norepinephrine in conscious rats: role of alpha 1- and alpha 2-adrenoceptors.

    abstract::In conscious rats, intrathecal (i.t.) administration of norepinephrine (NE) produced pressor responses, whereas i.t. epinephrine (Epi) caused depressor responses at low doses (0.1-1 microgram) and pressor responses at a higher dose (10 micrograms). Epi administered i.t. produced bradycardia; however, NE caused tachyca...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199209000-00005

    authors: Gradin K,Nicholas AP,Hjemdahl P,Svensson T,Hökfelt T

    更新日期:1992-09-01 00:00:00

  • Hypothalamic responsiveness in DOCA hypertensive rats augmented by streptozotocin-induced diabetes.

    abstract::In rats with deoxycorticosterone acetate (DOCA) salt hypertension, induction of diabetes with streptozotocin did not aggravate the elevation in blood pressure, but pressor and sympathetic nerve responses to electrical stimulation of the ventromedial hypothalamus were enhanced. Along with glycosuria and hyperglycemia, ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198211000-00026

    authors: Sasaki S,Buñag RD

    更新日期:1982-11-01 00:00:00

  • Resident cardiac mast cells and the cardioprotective effect of ischemic preconditioning in isolated rat heart.

    abstract::Our study was designed to investigate the role of resident cardiac mast cells in the cardioprotective effect of ischemic preconditioning. Ischemic/compound 48/80 preconditioning and treatment with compound 48/80, a mast cell degranulator (1 microg/ml), produced cardioprotective and antiarrhythmic effects in isolated p...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199708000-00001

    authors: Parikh V,Singh M

    更新日期:1997-08-01 00:00:00

  • Local administration of lactic acid and a low dose of the free radical scavenger, edaravone, alleviates myocardial reperfusion injury in rats.

    abstract::The effects of local myocardial administration of lactic acid and low-dose edaravone were investigated to determine if this combination provides benefits similar to mechanical postconditioning. We randomly divided 108 rats into 6 groups: sham, reperfusion injury, postconditioning (Post), lactic acid (Lac), low-dose ed...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/01.fjc.0000432860.48345.9d

    authors: Zhang G,Sun Y,Wang Y,Li X,Li T,Su S,Xu L,Shen H

    更新日期:2013-10-01 00:00:00

  • Myocardial depression by isoflurane is dependent on the underlying beta-adrenergic tone.

    abstract::Depression of myocardial contractility by muscarinic agonists is dependent on underlying beta-adrenergic tone. The negative inotropic effect of muscarinic agonists is enhanced by previous beta-adrenergic stimulation, an action that has been termed accentuated antagonism. We wished to determine whether accentuated anta...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199512000-00002

    authors: Thurston TA,Mathew BP

    更新日期:1995-12-01 00:00:00

  • Infarct-size limitation by preconditioning is enhanced by dipyridamole administered before but not after preconditioning: evidence for the role of interstitial adenosine level during preconditioning as a primary determinant of cardioprotection.

    abstract::Although the importance of adenosine (Ado)-receptor activation in preconditioning (PC) has been established, it is unclear whether cardioprotection afforded by PC is determined by the Ado level during PC ischemia or by that during sustained ischemia. Accordingly, we tested whether the PC effect is modified by augmenti...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199801000-00001

    authors: Suzuki K,Miura T,Miki T,Tsuchida A,Shimamoto K

    更新日期:1998-01-01 00:00:00

  • Possible mechanism of the vasodepressor effect of endokinin a/b in anesthetized rats.

    abstract::We investigated the mechanism of the vasodepressor effect of endokinin A/B. An intravenous (IV) bolus of endokinin A/B (0.05-0.3 nmol/kg) dose-dependently decreased mean arterial pressure in thiobutabarbital-anesthetized rats. The magnitude of the response was unaffected by IV pretreatment with NG-nitro-L-arginine met...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/01.fjc.0000175236.41573.2a

    authors: Abdelrahman AM,Syyong H,Tjahjadi A,Pang CC

    更新日期:2005-09-01 00:00:00

  • Mibefradil-induced inhibition of proliferation of human peripheral blood mononuclear cells.

    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

    authors: Lijnen P,Fagard R,Petrov V

    更新日期:1999-04-01 00:00:00

  • Pharmacokinetic-pharmacodynamic relations of losartan and EXP3174 in a porcine animal model.

    abstract::The pharmacokinetics of losartan and EXP3174, an active metabolite of losartan, were evaluated in the anesthetized pig after both a single intravenous dose (3 mg/kg) and during constant intravenous infusion. The pharmacodynamic activities of losartan and EXP3174 were determined during constant intravenous infusion as ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199711000-00008

    authors: Lankford SM,Plummer D,Hellyer P,Christ DD,Bai SA

    更新日期:1997-11-01 00:00:00

  • Calcium antagonists and vascular smooth muscle cells in atherogenesis.

    abstract::Vascular smooth muscle cells (SMCs) play a key role in the development of atherosclerotic lesions. Vascular smooth muscle, however, does not represent a homogeneous tissue. Using myosin as a marker of the differentiation processes in development and in vascular disease, we have been able to demonstrate the existence o...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章,评审

    doi:10.1097/00005344-199219002-00004

    authors: Pauletto P,Sartore S,Giuriato L,Scatena M,Tonello M,Scannapieco G,Pessina AC,Dal Palù C

    更新日期:1992-01-01 00:00:00

  • Cyclosporin-induced hypertension in marmosets: a new model of hypertension sensitive to angiotensin-converting enzyme inhibition.

    abstract::To establish a model of hypertension in marmosets, increasing doses of the immune-modulator cyclosporin (from 3 to 30 mg/kg/day) were given orally to marmosets for 31 days. Cyclosporin consistently induced hypertension with doses greater than or equal to 10 mg/kg/day. Time course and level of hypertension reached were...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Clozel JP,Fischli W

    更新日期:1989-07-01 00:00:00

  • Probucol reduces myocardial dysfunction during reperfusion after short-term ischemia in rabbit heart.

    abstract::The effects of probucol, a lipophilic antioxidant, on the myocardial dysfunction (stunning) observed during reperfusion after 15-min ischemia in rabbit heart were studied. Rabbits received food with or without 1% probucol for 3 weeks. They were then anesthetized and prepared for recording of myocardial segment shorten...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199101000-00023

    authors: Dage RC,Anderson BA,Mao SJ,Koerner JE

    更新日期:1991-01-01 00:00:00

  • The pharmacokinetics of ramipril in a group of ten elderly patients with essential hypertension.

    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:

    authors: Hosie J,Meredith P

    更新日期:1991-01-01 00:00:00

  • Antiarrhythmic and electrophysiologic effects of ibutilide in a chronic canine model of atrial flutter.

    abstract::We studied the effects of orally administered ibutilide, a class III antiarrhythmic agent, in a model of reentrant atrial flutter in conscious dogs. After baseline determination of atrial effective refractory period (AERP) and demonstration of reproducible induction of atrial flutter by rapid atrial pacing, 8 dogs rec...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199307000-00002

    authors: Buchanan LV,Turcotte UM,Kabell GG,Gibson JK

    更新日期:1993-07-01 00:00:00

  • Treatment of heart failure: state of the art and prospectives.

    abstract::Heart failure is unique among the major cardiovascular disorders in that it alone is increasing in prevalence while there has been a striking decrease in other conditions. Some of this can be attributed to the aging of the U.S. and European populations. The ability to salvage patients with myocardial damage is also a ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-200111002-00015

    authors: Greenberg B

    更新日期:2001-11-01 00:00:00

  • A salt-hypertension hypothesis.

    abstract::In urban Australia, the risk of retiring with hypertension is greater than 40%, and the basic abnormality--a rise in blood pressure (BP) with age--is almost universal. A hypothesis linking this with salt, therefore, concerns everyone. The diet of early humans was unsalted, and the Na content of breast milk (6 mmol/kg)...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章,评审

    doi:

    authors: Beard TC

    更新日期:1990-01-01 00:00:00

  • Effects of endothelin-induced nitric oxide on venous circulation and renal water-electrolyte handling.

    abstract::To assess the interaction of endothelin (ET) with nitric oxide (NO) and the effects on venous circulation and handling of renal water and electrolytes, ET (1.0 ng/kg/min) or saline was administered with or without three doses (0.27, 2.7 and 27 ng/kg/min for 40 min) of N omega-nitro-L-arginine methyl ester (L-NAME), an...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199800001-00039

    authors: Ota K,Kimura T,Shoji M,Ota M,Funyu T,Mori T,Sahata T

    更新日期:1998-01-01 00:00:00

  • Desmodium gangeticum (Linn.) DC. exhibits antihypertrophic effect in isoproterenol-induced cardiomyoblasts via amelioration of oxidative stress and mitochondrial alterations.

    abstract::Cardiac hypertrophy occurs in response to increased workload, such as hypertension or valvular heart disease. Oxidative stress has been implicated in cardiac hypertrophy and in its transition to heart failure. This study was taken up with the objective to evaluate the role of oxidative stress in cardiomyoblast hypertr...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0b013e3182756ad3

    authors: Sankar V,Pangayarselvi B,Prathapan A,Raghu KG

    更新日期:2013-01-01 00:00:00

  • Orally administered rapamycin does not modify rat aortic vascular tone.

    abstract::Rapamycin (RP; rapamune, sirolimus) is a potent inhibitor of vascular smooth muscle cell proliferation and migration. RP was demonstrated to reduce vascular neointimal formation in different animal models of vascular smooth muscle cell proliferation, and clinical use of RP-eluting stents promotes significant reduction...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0b013e31802e6420

    authors: Neto Mde M,Di Marco GS,Casarini DE,Lima VC,Campos AH

    更新日期:2007-02-01 00:00:00

  • Salicylate reduces ventricular dysfunction and arrhythmias during reperfusion in isolated rat hearts.

    abstract::Recent studies have shown the ability of salicylic acid (SA) to trap hydroxyl radicals (OH.) generated during reperfusion in ischemic myocardium. Since OH. is implicated in the pathogenesis of reperfusion injury, we examined the effect of SA on reperfusion-induced arrhythmias and postischemic ventricular dysfunction. ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199202000-00009

    authors: Liu XK,Tosaki A,Engleman RM,Das DK

    更新日期:1992-02-01 00:00:00

  • Phosphodiesterases in the rat renal vasculature.

    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

    authors: Jackson EK,Mi Z,Carcillo JA,Gillespie DG,Dubey RK

    更新日期:1997-12-01 00:00:00

  • High-fat diet alters K+-currents in porcine coronary arteries and adenosine sensitivity during metabolic inhibition.

    abstract::Coronary arteries from animals on normal diets (ND) exhibit well-maintained responses to dilators under ischemic conditions. The reported altered metabolic requirements and K+-currents in blood vessels from hypercholesterolemic animals fed high-fat diets (HF) led us to hypothesize that under metabolically depressed co...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-200404000-00004

    authors: Franke R,Yang Y,Rubin LJ,Magliola L,Jones AW

    更新日期:2004-04-01 00:00:00

  • Effect of sex on the cardiovascular response to adrenaline in humans.

    abstract::Cardiovascular responsiveness to stress conditions differs between men and women. It is not known to what extent this observation is explained by differences in the release of stress hormones like adrenaline, or by differences in the response to adrenaline. Therefore, we quantified the hemodynamic response to infusion...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/01.fjc.0000198519.28674.cc

    authors: Schouwenberg BJ,Rietjens SJ,Smits P,de Galan BE

    更新日期:2006-01-01 00:00:00

  • Hemodynamic effects of clonidine in patients with acute myocardial infarction complicated by hypertension.

    abstract::Arterial hypertension complicating acute myocardial infarction (AMI) may aggravate myocardial damage, possibly through an increase in myocardial oxygen demand. This study reports the effects of clonidine in patients with hypertension complicating acute myocardial infarction. Forty patients (37 men and three women, ave...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198608003-00008

    authors: Foresti A,Massari FM,Lotto A

    更新日期:1986-01-01 00:00:00

  • Characterization of Ca2+ channels involved in endothelin-1-induced contraction of rabbit basilar artery.

    abstract::This study attempted to characterize Ca2+ channels involved in endothelin-1-induced contraction of rabbit basilar artery using whole-cell patch-clamp and measurement of intracellular free Ca2+ concentration. Endothelin-1 activates two types of Ca2+-permeable nonselective cation channels (NSCC-1 and NSCC-2) and a store...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-200209000-00013

    authors: Kawanabe Y,Hashimoto N,Masaki T

    更新日期:2002-09-01 00:00:00