Clinical pharmacological studies on the interaction between alpha-adrenoceptors and calcium antagonists.

abstract：:Conflicting evidence has been reported on the hypothesis that vascular nitric oxide (NO) release is modulated by autonomic influences. Another controversial question is whether an insufficient degree of NO-dependent vasodilation may play a contributory role in the genesis of arterial hypertension. To address these que...

journal_title：Journal of cardiovascular pharmacology

authors： Ferrari AU,Radaelli A,Mori T,Mircoli L,Perlini S,Meregalli P,Fedele L,Mancia G

更新日期：2001-11-01 00:00:00

abstract：:Nitric oxide (NO) is a potent inhibitor of platelet aggregation. However, the benefits of NO-based therapies can be confounded by concomitant hypotension. Monophosphoryl lipid A (MLA) is a nontoxic derivative of endotoxin that purportedly increases nitric oxide synthase (NOS) activity and, presumably, NO production, y...

journal_title：Journal of cardiovascular pharmacology

authors： Przyklenk K,Hata K,Whittaker P,Elliott GT

更新日期：2000-03-01 00:00:00

abstract：:Previous studies have suggested that racial differences may exist in beta-adrenoceptor-mediated responsiveness. However, no clear conclusions can be drawn based on these studies because of the confounding effect of the parasympathetic nervous system on responses to isoproterenol bolus doses. In this study, we blocked ...

journal_title：Journal of cardiovascular pharmacology

authors： Johnson JA,Burlew BS,Stiles RN

更新日期：1995-01-01 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

authors： Fogari R,Corea L,Cardoni O,Cosmi F,Porcellati C,Innocenti P,Provvidenza M,Timio M,Bentivoglio M,Bertocchi F,Zoppi A

更新日期：1997-10-01 00:00:00

abstract：:The modification of tumor blood flow resulting from administration of endothelin-1 (ET-1) and sarafotoxin S6c (SX6c) was examined in female CBH rats. Blood flow in subcutaneous HSN tumors and normal tissues was measured by tissue uptake of 125I-labeled iodoantipyrine ([125I])IAP). A 75% increase in tumor blood flow wa...

journal_title：Journal of cardiovascular pharmacology

authors： Bell KM,Prise VE,Chaplin DJ,Tozer GM

更新日期：1995-01-01 00:00:00

abstract：:The function of presynaptic angiotensin II receptors at postganglionic sympathetic terminal axons under conditions of uninterrupted sympathetic impulse traffic was studied in anesthetized rabbits (alfadolone + alfaxalone). Mean arterial pressure, postganglionic renal sympathetic firing rate, the arterial plasma noradr...

journal_title：Journal of cardiovascular pharmacology

authors： Szabo B,Hedler L,Schurr C,Starke K

更新日期：1990-06-01 00:00:00

abstract：:Conversion of sustained ventricular tachycardia (VT) to nonsustained VT may be a potent mode of antiarrhythmic drug action, whereas a drug's conversion of nonsustained VT to sustained VT could produce serious clinical complications. We tested the effects of two class Ic drugs [encainide (1, 2, and 4 microM) and propaf...

journal_title：Journal of cardiovascular pharmacology

authors： Hill BC,Summers RA,Courtney KR

更新日期：1992-04-01 00:00:00

abstract：:It has previously been shown that endothelin (ET)-receptor antagonists protect the myocardium from ischemia and reperfusion (I/R) injury. The mechanism behind this effect is unclear. The aim of this study was to elucidate the possible interaction between ET(A)-receptor antagonism and nitric oxide (NO) during I/R. Anes...

journal_title：Journal of cardiovascular pharmacology

authors： Gonon AT,Gourine AV,Pernow J

更新日期：2000-09-01 00:00:00

abstract：:The relative efficacies of 240 mg/day diltiazem and 20 mg/day nitrendipine were compared in a placebo-controlled, randomized, crossover study of 48 patients who had both moderate systemic hypertension and stable angina pectoris. Hemodynamic indices were measured by impedance cardiography and echocardiography and bicyc...

journal_title：Journal of cardiovascular pharmacology

authors： Andreyev N,Bichkov I,Skutelis A,Andreyeva T

更新日期：1991-01-01 00:00:00

abstract：:We studied the effects of cicletanine, an anti-hypertensive drug, on reperfusion arrhythmias in relation to 6-keto-PGF1 alpha, thromboxane B2 (TXB2), and ion shifts (Na+, K+, Ca2+, and Mg2+) induced by ischemia and reperfusion in hearts isolated from spontaneously hypertensive rats. Hearts were subjected to 30-min glo...

journal_title：Journal of cardiovascular pharmacology

authors： Tosaki A,Hellegouarch A,Braquet P

更新日期：1991-04-01 00:00:00

abstract：:The aim of the present study was to investigate the putative role of endothelin (ET) in mediating ischemia/hypoxia-induced ANP release utilizing exogenous ET-1 or ET receptor antagonists (BQ-123 or Bosentan). Isolated rat hearts with non-distended atria were perfused using a Langendorff apparatus and heart rate mainta...

journal_title：Journal of cardiovascular pharmacology

authors： Zhang Y,Oliver JR,Horowitz JD

更新日期：2004-02-01 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

authors： Garbán HJ,Buga GM,Ignarro LJ

更新日期：2004-05-01 00:00:00

abstract：:Nineteen hypertensive patients were treated with increasing doses of the new angiotensin-converting enzyme inhibitor MK 421. Twenty milligrams orally reduced blood pressure from 180/112 +/- 6.8/3.6 (mean +/- SEM) to 160/100 +/- 6.5/3.3 mm Hg (p less than 0.005) while heart rate increased from 75 +/- 2 to 87 +/- 3 beat...

journal_title：Journal of cardiovascular pharmacology

authors： Biollaz J,Brunner HR,Gavras I,Waeber B,Gavras H

更新日期：1982-11-01 00:00:00

abstract：:To evaluate the interaction between renal nerves, the atrial natriuretic peptide (ANP), and the renin-angiotensin system (RAS), electrical stimulation of renal nerves was performed in spontaneously hypertensive rats (SHR) and in their normotensive controls, Wistar Kyoto rats (WKY), before and after pharmacologic treat...

journal_title：Journal of cardiovascular pharmacology

authors： Golin R,Protasoni G,Wjinmaalen P,Sala C,Monopoli A,Casati C,Zanchetti A,Stella A

更新日期：1996-11-01 00:00:00

abstract：:To evaluate a possible mechanism for the chronic regulation of MAPK/ERK kinase-1 (MEK-1) and p42 mitogen-activated protein kinase (MAPK) we studied the long-term effects of the G-protein-coupled receptor agonist endothelin-1 (ET-1) and the protein tyrosine kinase-coupled receptor agonist platelet-derived growth factor...

journal_title：Journal of cardiovascular pharmacology

authors： Schramek H,Sorokin A,Watson RD,Dunn MJ

更新日期：1995-01-01 00:00:00

abstract：:The increased production of nitric oxide (NO) has been implicated as the basis for myocardial dysfunction and the lack of response to vasoconstrictors during endotoxin shock induced by lipopolysaccharide (LPS). Our objective was to evaluate and compare NO production in major organs of rats treated with LPS, 1 or 14 mg...

journal_title：Journal of cardiovascular pharmacology

authors： Lecour S,Maupoil V,Siri O,Tabard A,Rochette L

更新日期：1999-01-01 00:00:00

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

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

更新日期：1992-09-01 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

authors： Beaucage P,Massicotte J,Boileau JF,Dumont L

更新日期：2003-07-01 00:00:00

abstract：:We conducted an intracardiac study of the electrophysiologic effects and kinetics of intravenous nicardipine (N) in 16 patients with or without impaired cardiac conduction, using a randomized, double-blind, crossover design versus placebo (P). N or P were infused intravenously over 5 min: the dose of N was 9.46 +/- 3....

journal_title：Journal of cardiovascular pharmacology

authors： David D,Guize L,Leheuzey JY,Lavergne T,Loria Y,Ourbak P

更新日期：1990-01-01 00:00:00

abstract：:We investigated the effects of a class I antiarrhythmic drug, cibenzoline, on human atrial muscle in vivo. Electrophysiologic measurements were performed in 44 patients (mean age 49 +/- 15 years), before and after an intravenous infusion of cibenzoline 1.4 mg/kg in 5 min. Extrastimuli at a basic cycle length (BCL) of ...

journal_title：Journal of cardiovascular pharmacology

authors： Esato M,Shimizu A,Chun YH,Tatsuno H,Yamagata T,Matsuzaki M

更新日期：1996-08-01 00:00:00

abstract：:The benefit of thrombolytic agents to reduce myocardial infarct size, improve left ventricular (LV) function, and prolong survival in human subjects is generally recognized, although the precise mechanism is poorly defined. This study was designed to evaluate the cardioprotective effects of streptokinase (SK) in rats,...

journal_title：Journal of cardiovascular pharmacology

authors： Smith EF 3rd,Nichols AJ,Sellers TS,O'Brien SR,Griswold DE,Egan JW,Hillegass LM,Vasko JA,Slivjak MJ,Davis PA

更新日期：1991-11-01 00:00:00

abstract：:The chronotropic and inotropic effects of vecuronium bromide and its interaction with the autonomic nervous system were investigated in the isolated, cross-circulated right atrial and left ventricular preparations of the dog. Vecuronium, injected into the external jugular vein of the support dog, induced dose-dependen...

journal_title：Journal of cardiovascular pharmacology

authors： Narita M,Furukawa Y,Ren LM,Karasawa Y,Takei M,Murakami M,Takayama S,Chiba S

更新日期：1992-06-01 00:00:00

abstract：:The terminal phases of volume-overload heart failure are characterised by eccentric ventricular hypertrophy. Relatively little attention has been directed to exploring the mechanisms involved in this development. The increase in diastolic wall stress leads to replication of the sarcomeres in series. The hypertrophied ...

journal_title：Journal of cardiovascular pharmacology

authors： Taylor SH

更新日期：1987-01-01 00:00:00

abstract：:A single dose of doxazosin, a long-acting postsynaptic alpha 1-adrenoceptor antagonist, was administered to seven patients with essential hypertension. Following administration of a single dose, all the patients except one who was forced to be discharged from the hospital for work, continuously received doxazosin once...

journal_title：Journal of cardiovascular pharmacology

authors： Shionoiri H,Yasuda G,Yoshimura H,Umemura S,Miyajima E,Miyakawa T,Takagi N,Kaneko Y

更新日期：1987-07-01 00:00:00

abstract：:Estradiol may antagonize the adverse cardiovascular effects of angiotensin II (Ang II). We investigated the effects of 2-methoxyestradiol (2-ME), a nonestrogenic estradiol metabolite, on Ang II-induced cardiovascular and renal injury in male rats. First, we determined the effects of 2-ME on Ang II-induced acute change...

journal_title：Journal of cardiovascular pharmacology

authors： Salah E,Bastacky SI,Jackson EK,Tofovic SP

更新日期：2019-03-01 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

authors： Blackshear JL,Orlandi C,Williams GH,Hollenberg NK

更新日期：1986-01-01 00:00:00

abstract：:During recent years, small conductance Ca-activated K (SK) channels have been reported to play a role in cardiac electrophysiology. SK channels seem to be expressed in atria and ventricles, but from a functional perspective, atrial activity is predominant. A general notion seems to be that cardiac SK channels are pred...

journal_title：Journal of cardiovascular pharmacology

authors： Diness JG,Kirchhoff JE,Sheykhzade M,Jespersen T,Grunnet M

更新日期：2015-09-01 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

authors： Brodde OE,Zerkowski HR,Schranz D,Broede-Sitz A,Michel-Reher M,Schäfer-Beisenbusch E,Piotrowski JA,Oelert H

更新日期：1995-07-01 00:00:00

abstract：:This study examined the effect of pinacidil on the transmural distribution of myocardial blood flow in the chronically pressure overloaded hypertrophied left ventricle. Studies were performed in six dogs in which banding of the ascending aorta had resulted in an 88% increase in left ventricular mass, as well as in six...

journal_title：Journal of cardiovascular pharmacology

authors： Bache RJ,Dai XZ,Baran KW

更新日期：1990-12-01 00:00:00

abstract：:The aim of this study was to investigate whether the HMG-CoA reductase inhibitor cerivastatin alters the nitric oxide (NO) bioavailability of porcine aortic endothelial cell cultures and of native porcine coronary endothelium, after short-term (minutes) and long-term (24-hour) treatment with cerivastatin (electrochemi...

journal_title：Journal of cardiovascular pharmacology

authors： Berkels R,Nouri SK,Taubert D,Bartels H,Roesen P,Roesen R,Klaus W

更新日期：2003-09-01 00:00:00