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 and 3 nmol/kg, i.v.) to control rats caused an increase (29%) in mean arterial pressure (MAP) associated with a decrease (38%) in renal blood flow (RBF) and a marked increase (130%) in renal vascular resistance (RVR). These changes were accompanied by a decrease in glomerular filtration rate (GFR) and a significant increase in sodium excretion. In contrast, the effects of big ET on MAP and renal hemodynamics were blunted in CHF rats, and sodium excretion increased only minimally in response to big ET despite a significant increase in GFR. The data suggest that rats with CHF have reduced sensitivity to the vascular and renal action of ET.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Gurbanov K,Winaver J,Haramati A,Hoffman Asubject
Has Abstractpub_date
1995-01-01 00:00:00pages
S473-5eissn
0160-2446issn
1533-4023journal_volume
26 Suppl 3pub_type
杂志文章abstract::To examine the role of sulfhydryl (-SH) group in improvement of endothelial dysfunction with angiotensin-converting enzyme (ACE) inhibitors in experimental high dose of methionine dieted rats. We compared the effects of Captopril (an ACE inhibitor with -SH group), enalapril (an ACE-inhibitor without -SH group), N-acet...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000195306.61719.64
更新日期:2006-01-01 00:00:00
abstract::The genes for endothelin (ET) and their receptors are candidates for essential hypertension. Those for ET-1, ET-2 and the ET(A) receptor were selected for mutation scanning, and associated studies comparing untreated hypertensive patients and matched controls. A number of silent polymorphisms were found, resulting fro...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200000002-00010
更新日期:2000-01-01 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::The oxidative modification of low-density lipoprotein (LDL) hypothesis implies that antioxidants should be effective in suppressing atherosclerosis. This study is designed to test the potential of antioxidants to inhibit atherosclerotic plaque progression in balloon-denuded and irradiated hypercholesterolemic rabbits....
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000179436.03502.26
更新日期:2005-10-01 00:00:00
abstract::We investigated whether resveratrol (RSV) can attenuate obesity and diabetes progression and improve diabetes-induced vascular dysfunction, and we attempted to delineate its underlying mechanisms. Male C57Bl/6 mice were administered a high-fat diet (HFD) for 17 weeks. Mice developed type 2 diabetes with increased body...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000621
更新日期:2018-11-01 00:00:00
abstract::Populations with a high sodium intake have a high prevalence of hypertension and a high mortality and morbidity due to cerebrovascular disease. Within populations, however, it is very difficult to demonstrate a significant correlation between sodium intake and blood pressure. Experimental evidence exists demonstrating...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198400061-00030
更新日期:1984-01-01 00:00:00
abstract::The vascular endothelium has a number of functions that may mediate many of the ischemia-reperfusion (IR) phenomena. The gatekeeper function is disturbed and increased capillary permeability results in edema and organ dysfunction. Vasomotor function is altered, with impairment of relaxation and augmentation of constri...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-199600001-00007
更新日期:1996-01-01 00:00:00
abstract::We wished to test (a) whether single-drug therapy with a low dose of the angiotensin-converting enzyme (ACE) inhibitor perindopril has the capacity to improve early survival of the cardiomyopathic Syrian hamster (CSH); (b) whether early treatment with perindopril modifies CSH survival to a greater extent than perindop...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199407000-00023
更新日期:1994-07-01 00:00:00
abstract::The effect of two calcium antagonists on left ventricular (LV) relaxation and diastolic filling was evaluated in 16 randomized patients. Isradipine and nifedipine were administered intravenously in a maximum dose of 60 micrograms/min for isradipine and 63 micrograms/min for nifedipine. Heart rate was increased signifi...
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:1990-01-01 00:00:00
abstract::A hallmark of vascular disease is the inappropriate proliferative and synthetic behavior of smooth muscle cells. This phenotypically immature behavior arises as a consequence of the myocytes undergoing conversion from a contractile to proliferative/secretory cell type. The stimulus invoked for this dedifferentiative p...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:
更新日期:1992-01-01 00:00:00
abstract::The mechanism of lithium action, an effective treatment for bipolar disease, is still unknown. The present study examined the role of nitric oxide (NO) and prostaglandin systems in lithium modulation of acetylcholine in mesenteric vascular bed of rats by cannulating superior mesenteric artery. Acetylcholine (ACh) or s...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e318153f262
更新日期:2007-12-01 00:00:00
abstract::The treatment of hypertension is clearly beneficial. Blood pressure reduction with antihypertensive drugs reduces mortality and the incidence of complications such as stroke, renal failure, and congestive failure. However, analysis of long-term studies using different antihypertensive drugs indicates that the outcome ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:The present study has been designed to investigate the effect of sodium cromoglycate and ketotifen, mast cell stabilizers in hyperhomocysteinemia-induced cardiac hypertrophy in rats. METHODS:Rats were administered L-methionine (1.7 g/kg/day PO) for 8 weeks to produce hyperhomocysteinemia. Sodium cromoglycat...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e31817ae60f
更新日期:2008-06-01 00:00:00
abstract::Formation of oxygen free radicals during heart transplantation seems to be related to the alterations occurring during ischemia and reperfusion and could explain the short preservation time of donor hearts. The aim of our study was (a) to analyze the protective effects of pyruvate during cold cardioplegia and ischemia...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199911000-00005
更新日期:1999-11-01 00:00:00
abstract::The structure-activity relationships of phosphoramidon analogues for inhibition of endothelin-converting enzyme (ECE), neutral endopeptidase 24.11 (NEP), and angiotensin-converting enzyme (ACE) were compared. Phosphoramidon inhibited ECE, NEP, and ACE activities with IC50 values of 3.5, 0.034, and 78 microM, respectiv...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1995-01-01 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::The different intervention trials in elderly hypertensive subjects are compatible with the hypothesis that antihypertensive drug treatment decreases cardiovascular mortality, mainly by a reduction of cerebrovascular mortality. Antihypertensive drug treatment in elderly hypertensive subjects also leads to a decrease in...
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::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::This study was performed to determine if cardiodepression can be dissociated from cardioprotection with calcium antagonists and which one (diltiazem, nifedipine, or verapamil) can maximally protect ischemic myocardium at a given level of cardiodepression. Isolated rat hearts were subjected to 0.1, 0.5, or 1.0 microM d...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1989-08-01 00:00:00
abstract::The vasoactive effects of calcium antagonist drugs were compared using a multi-organ functional imaging technique with thallium-201 (Tl-201). Four drugs were tested at two different doses: nifedipine (10 and 25 micrograms/kg), verapamil (100 and 250 micrograms/kg), diltiazem (100 and 250 micrograms/kg), and bepridil (...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198311000-00010
更新日期:1983-11-01 00:00:00
abstract::In view of recent findings on the anatomic heterogeneity of rapid vasodilation via estrogen receptor (ER)-dependent mechanisms, it is obvious that with regard to human physiology and disease much of it is still unknown, and research in this area is urgently needed. This is also important because chronic drug therapy w...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/FJC.0b013e31829709d4
更新日期:2013-07-01 00:00:00
abstract::The influence of isoniazid (ISO) preincubation on the relaxant effects of a group of nitrovasodilators was examined in norepinephrine-contracted rat aortic rings with and without endothelium. ISO displaced to the left the dose-response curves to all nitrovasodilators and increased the negative logarithm of their media...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199809000-00007
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND:S-equol is known as an estrogenic substance, but its ability to restore vascular endothelial function is unknown. The aim of this study was to investigate the impact of S-equol on endothelial function and intimal thickening under isoflavone- and estrogen-deficient circumstances. METHODS:Twelve-week-old fema...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0000000000000220
更新日期:2015-05-01 00:00:00
abstract::This article presents selected aspects of the presynaptic modulation of noradrenaline release from the heart. Several presynaptic effector systems that mediate either inhibition or facilitation of noradrenaline release are discussed. In particular, the potencies of muscarinic agonists and antimuscarinic drugs in musca...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章,评审
doi:10.1097/00005344-198500075-00002
更新日期:1985-01-01 00:00:00
abstract::Baboons were given eight doses of clonidine hydrochloride (0.04--40 micrograms/kg) via indwelling femoral venous catheters. Systolic and diastolic blood pressures and heart rates were assessed for time course, magnitude of change, time-to-peak change, and duration of effect at each dosage level. The response to clonid...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198209000-00024
更新日期:1982-09-01 00:00:00
abstract::The vasodilator action of organic nitrates can be severely impaired by induction of drug tolerance. A critical depletion of sulfhydryl groups has been proposed to play a key role in impairment of the biotransformation of organic nitrates to nitric oxide (NO). We studied the effects of the new cysteine-containing nitra...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-199405000-00012
更新日期:1994-05-01 00:00:00
abstract::When the cervical vagus nerve is briefly stimulated, a triphasic cardiac chronotropic response ensues: the cardiac cycle length initially increases, then briefly decreases, and subsequently increases again. Verapamil, a calcium channel blocker, alters these responses to acetylcholine when the heart is in sinoatrial no...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198807000-00017
更新日期:1988-07-01 00:00:00
abstract::Low doses of ethanol can produce negative functional effects in ventricular myocytes. This may be related to the nitric oxide-cyclic GMP signal transduction system. We tested the hypothesis that ethanol stimulated endothelial nitric oxide synthase and this caused the negative functional effects in cardiac myocytes. Th...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/01.fjc.0000175436.49165.8b
更新日期:2005-09-01 00:00:00
abstract::Cilostazol, a potent phosphodiesterase 3 inhibitor and anti-thrombotic agent, was recently shown to inhibit adenosine uptake into cardiac myocytes and vascular cells. In the present studies, cilostazol inhibited [ H]-adenosine uptake in both platelets and erythrocytes with a median inhibitory concentration (IC ) of 7 ...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-200210000-00011
更新日期:2002-10-01 00:00:00
abstract::The concentrations of cyclic nucleotides were measured by radioimmunoassay in the plasma of dogs with aconitine-induced atrial fibrillation and of patients with paroxysmal atrial fibrillation. The concentration of cyclic GMP in the plasma of dogs was significantly elevated 30 and 60 min after the onset of atrial fibri...
journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/00005344-198111000-00007
更新日期:1981-11-01 00:00:00