Abstract:
:Both in the periphery and in the central nervous system, alpha-adrenoceptors can be subdivided into alpha 1-types. alpha 1-Receptors are sensitive to low concentrations of the agonists phenylephrine and methoxamine, and of the antagonists corynanthine and prazosin. alpha 1-Receptors are sensitive to low concentrations of the agonists clonidine and tramazoline, and of the antagonists yohimbine and rauwolscine. Although it has been shown recently that some smooth muscle tissues contain postsynaptic, contraction-mediating alpha 2-adrenoceptors, the smooth muscle of rabbit aorta and pulmonary artery possesses only alpha 1-receptors. In rabbit portal vein, practically all of the effect of exogenous agonists is mediated by alpha 1-receptors. On the other hand, prazosin resistance and rauwolscine sensitivity of the contractile response to transmural sympathetic nerve stimulation indicates that released noradrenaline may act on a small population of postsynaptic alpha 2-receptors as well.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Starke K,Docherty JRdoi
10.1097/00005344-198200041-00002subject
Has Abstractpub_date
1982-01-01 00:00:00pages
S3-7eissn
0160-2446issn
1533-4023journal_volume
4 Suppl 1pub_type
杂志文章abstract::Hyperhomocysteinemia is a risk factor for atherosclerosis, and is found in the heterozygous form in approximately one-third of all individuals with coronary artery disease. The sulfhydryl group of homocysteine has been viewed as contributing to the atherogenic effects of this low-molecular-weight thiol, largely as a c...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199204002-00057
更新日期:1992-01-01 00:00:00
abstract::Sixty patients with mild to moderate essential hypertension, uncontrolled with diuretics alone, were evaluated in a double-blind randomized study that compared the effect of indoramin plus hydrochlorothiazide with that of pindolol plus hydrochlorothiazide. Following a 2-week period during which the patients were treat...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-198600082-00013
更新日期:1986-01-01 00:00:00
abstract::Because the role of sodium channels in the initiation and maintenance of VF is not fully elucidated, we studied the significance of sodium channel activity in VF using sodium channel blockers. In nonischemic isolated feline hearts, the following electrophysiologic parameters were measured before and after application ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200012000-00015
更新日期:2000-12-01 00:00:00
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
更新日期:1982-11-01 00:00:00
abstract::Cardiac endothelial nitric oxide synthase (ecNOS) was suppressed and inducible NOS (iNOS) enhanced at the decompensated heart failure stage in 18-week-old Dahl salt-sensitive (DS) hypertensive rats to which a high-salt diet had been administered from the age of 6 weeks. Nicorandil (NIC) enhanced ecNOS by activating Ad...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000211741.47960.c2
更新日期:2006-05-01 00:00:00
abstract::Carthamin yellow (CY) is a flavonoid compound isolated from safflower, which is widely used clinically in China. It has various pharmacological effects including promoting blood circulation to remove blood stasis and alleviating pain. Ischemic heart disease is one of the main culprits of illness and death. Here, in th...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000710
更新日期:2019-09-01 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::The pharmacological characterization of a nonpeptide endothelin (ET)-receptor antagonist, PABSA [(R)-(--)-2-(benzo[1,3]dioxol-5-yl)-N-(4-isopropyl-phenylsulfon yl)-2-(6-methyl-2-propylpyridin-3-yloxy)-acetamide hydrochloride] was studied. PABSA competitively inhibited the binding of [125I]-ET-1 to A7r5 cells expressin...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199907000-00022
更新日期:1999-07-01 00:00:00
abstract::Chalcone is a class of flavonoid compounds that are widely biosynthesized in plants. Epidemiological studies suggest that increased intake of flavonoids from fruits and vegetables reduces the risk of cardiovascular disease. However, the effect of chalcone on cardiovascular diseases has not been fully investigated. The...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e3182440486
更新日期:2012-04-01 00:00:00
abstract::This study examined the physiological effects and potential mechanisms of action of methylecgonidine (MEG), the major pyrolysis product from smoking "crack cocaine," on cardiac function. Ferret right ventricular papillary muscles and human ventricular trabeculae were isolated and placed in a physiological solution at ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199709000-00013
更新日期:1997-09-01 00:00:00
abstract::The effects of long-term treatment with differing dosages of captopril and hydrochlorothiazide in combination were evaluated in 22 hypertensive patients. There was no significant difference in antihypertensive efficacy between captopril 25 mg twice a day in combination with hydrochlorothiazide 25 mg once or twice dail...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005344-198507001-00014
更新日期:1985-01-01 00:00:00
abstract::NADPH oxidases have recently been shown to contribute to the pathogenesis of hypertension. The development of specific inhibitors of these enzymes has focused attention on their potential therapeutic use in hypertensive disease. Two of the most specific inhibitors, gp91ds-tat and apocynin, have been shown to decrease ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e318063e820
更新日期:2007-07-01 00:00:00
abstract::Diabetes is a devastating disease with multiple adverse effects on the vasculature. Moreover, hypertension is a prerequisite for patients with diabetes to progress to end-stage renal disease and to develop cardiovascular complications. Adequate control of blood glucose and blood pressure are the two most important fac...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-199800002-00006
更新日期:1998-01-01 00:00:00
abstract::To determine whether nitrate tolerance is attenuated on aortas isolated from rats treated in the long term with an angiotensin-converting enzyme (ACE) inhibitor, five groups of rats were studied in parallel. Group 1 received ramipril, 1 mg/ kg/day, p.o., for 6 weeks; group 2 received ramipril at the same dose for 4 we...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199910000-00011
更新日期:1999-10-01 00:00:00
abstract::The depressor and renal responses to the neutral endopeptidase (NEP) inhibitor, SQ 29,072, were characterized in both the conscious spontaneously hypertensive rat (SHR) and the conscious deoxycorticosterone acetate (DOCA)/salt hypertensive rat. Inhibition of tissue NEP activity by pharmacologically active doses was al...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199007000-00022
更新日期:1990-07-01 00:00:00
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
更新日期:1998-01-01 00:00:00
abstract::The majority of deaths attributable to hypertension are coronary artery disease (CAD) deaths and, consequently, the prevention of CAD should be the primary aim of hypertension management. Recent meta-analyses confirm the results of the individual hypertension intervention trials, which demonstrated a disappointing sho...
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::Previous animal experiments suggest that the increase in the amplitude from the R-wave to the S-wave (RSh) may be more sensitive than other ECG measures to sodium channel blocking drug actions. We measured RSh of three orthogonal leads at baseline and during intravenous pharmacologic stimulation with adenosine, ajmali...
journal_title:Journal of cardiovascular pharmacology
pub_type: 临床试验,杂志文章
doi:10.1097/00005344-199510000-00023
更新日期:1995-10-01 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
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Baroreflex control of renin release following acute and prolonged blood pressure reduction by felodipine administration was investigated in conscious spontaneously hypertensive rats (SHR) fitted with arterial and venous catheters. Basal values of mean arterial pressure (MAP), heart rate (HR), and plasma renin activity...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::The antiarrhythmic efficacy and proarrhythmic potential of the class IC antiarrhythmic agent encainide were assessed in subacute and chronic postinfarction canine models, respectively. In conscious dogs with spontaneous premature ventricular complexes (PVCs) at 48 h after anterior myocardial infarction (MI), cumulativ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199303000-00008
更新日期:1993-03-01 00:00:00
abstract::The cardiovascular profile of a novel calcium antagonist, MPC-1304 and its active metabolites were investigated in experimental animals in vitro and in vivo, and were compared with those of other calcium antagonists or nitroglycerin (NTG). The ratio of negative chronotropic/negative inotropic effect of MPC-1304 was 23...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199307000-00025
更新日期:1993-07-01 00:00:00
abstract::Serotonin, applied to helical strips of larger vessels such as coronary arteries, acts as a potent vasoconstrictor in vitro. In contrast, in vivo serotonin causes a remarkable decrease in total peripheral resistance. To differentiate the influence of serotonin on resistances of large and small vessels, experiments wer...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198500077-00017
更新日期:1985-01-01 00:00:00
abstract::Intracerebroventricular injections of endothelin-1 (ET-1) are reported to cause dose-related increases in sympathetic nerve activity and blood pressure in anesthetized normotensive rats. These studies were performed to determine the following: which endothelin receptor, A or B, is involved in mediating sympathetic and...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199906000-00007
更新日期:1999-06-01 00:00:00
abstract::The development of tolerance to the antihypertensive effect of clonidine and related imidazolines is clinically recognized. Here, we employed a restricted daytime (8:30 AM until 4:30 PM) clonidine regimen to establish a model of sustained hypotension in spontaneously hypertensive rats (SHRs). Blood pressure (BP), hear...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e3180318afb
更新日期:2007-03-01 00:00:00
abstract::Oxygen-derived free radicals and their metabolites may contribute to the extension of irreversible cellular injury, which occurs on reperfusion of the previously ischemic myocardium. Therefore, therapy directed against the toxic effects of reactive oxygen species may provide protection to the ischemic myocardium, whic...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1986-09-01 00:00:00
abstract::Nitrates are beneficial in post-myocardial infarction patients with stable, unstable, and Prinzmetal's variant angina and as adjunctive therapy in congestive heart failure. They are available in multiple formulations that differ in chemical structure, pharmacokinetics, onset and duration of activity, and peak effect; ...
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::The main therapeutic strategies for treating atrial fibrillation include rate control, maintenance of sinus rhythm, and antiembolic treatment. Current antiarrhythmic drugs are effective in about 50% of patients and are often associated with adverse effects. Multiple trials suggest that rate control with proper anticoa...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e318175dd73
更新日期:2008-09-01 00:00:00
abstract::The actions of SK&F 94120, a selective phosphodiesterase (PDE III) inhibitor, have been characterised on human ventricular myocardium obtained from heart failure patients. Some actions have been compared directly with those of the drug on guinea pig and cat ventricular myocardium. SK&F 94120 caused positive inotropic ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198706000-00013
更新日期:1987-06-01 00:00:00
abstract::The cardioprotective effects of betaxolol were studied in a rat model with heart failure induced by autoimmune myocarditis. Twenty-eight days after immunization, Lewis rats were divided into four groups; 0.1 mg/kg betaxolol per day (group 0.1), 1.0 mg/kg betaxolol per day (group 1), 10 mg/kg betaxolol per day (group 1...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00