Abstract：
UNLABELLED:The role of mitochondrial transporters in the cardioprotection of rat hearts exposed to high [K+]-low [Ca2+]-cardioplegia (CPG) and ischemia and reperfusion (I/R) was studied through the mechano-energetic consequences of target drugs. The total heat rate (Ht) and the left intraventricular pressure (LVP) were simultaneously measured in isolated perfused hearts (30 degrees C and 1 Hz) inside a flow-calorimeter during 45 minutes of no-flow I and 45 minutes of R. After stabilization (C) they were pretreated with CPG and 100 microM 5-hydroxidecanoate (5HD, selective mKATP blocker) without and with 10 or 30 microM clonazepam (Clzp, mNCX inhibitor), 30 microM diazoxide (Dzx, selective mKATP opener), 1 microM Ru360 (selective Ca-uniporter blocker), and 0.2 microM cyclosporine-A, (mPTP inhibitor, before I and during R). Before I, 5-hydroxydecanoate in CPG increased the resting heat rate (17.83 +/- 3.55 mW/g) without changing the stunning. Clzp 30 microM + CPG + 5-hydroxydecanoate reduced the postischemic P with diastolic contracture and high Ht. Dzx protected C-hearts from stunning but increased it in CPG hearts with low economy (P/Ht) as well as Ru360. Cyclosporine-A did not modify the stunning of C or CPG ischemic hearts, suggesting that the mPTP was not opened. CONCLUSIONS:Mitochondria have a precise role for determining cardioprotection or stunning in high-K+ cardioplegic rat hearts under I/R. Known protective drugs, such as Dzx and Ru360, which reduce the mitochondrial Ca2+-uptake, increased the stunning of CPG-rat hearts and reduced muscle economy, whereas 5-hydroxydecanoate and Clzp together increased the stunning by inducing mitochondrial Ca2+ overload.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Ragone MI,Consolini AEdoi
10.1097/FJC.0b013e3181b04ce3subject
Has Abstractpub_date
2009-09-01 00:00:00pages
213-22issue
3eissn
0160-2446issn
1533-4023journal_volume
54pub_type
杂志文章abstract：:The complementary antihypertensive effects of the beta-blocker/calcium antagonist combination has to be weighed against their additive and potentially detrimental negative inotropic, chronotropic, and dromotropic effects inherent in both classes of drugs. We reviewed the main adversity, particularly electrophysiologic...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/00005344-198507004-00008
更新日期：1985-01-01 00:00:00
abstract：:The calcium channel blocker nifedipine and the new phosphodiesterase (PDE) inhibitor enoximone are used in the treatment of cardiovascular diseases. Since both substances are acting on slow calcium channels and because systemic elimination of these two agents is dependent on oxidative drug metabolizing enzyme activity...
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：:Sarcosyl1, cysteinyl-S-methyl8-angiotensin II [(Sar1, Cys-Me8) Ang II] was examined for antagonism of angiotensin (Ang) responses in isolated rabbit atrial and aortic tissues. (Sar1, Cys-Me8) Ang II competitively antagonized Ang II responses in aorta at a concentration of 5 nM. Concentrations of the antagonist greater...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198311000-00017
更新日期：1983-11-01 00:00:00
abstract：:Flosequinan, a new orally active vasodilator, and its sulfone metabolite were evaluated for inotropic activity in isolated ferret papillary muscles and pentobarbital anesthetized open-chest dogs. In vitro, flosequinan and its sulfone derivative increased tension development in a concentration-dependent manner (1-50 mi...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198909000-00009
更新日期：1989-09-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1991-01-01 00:00:00
abstract：:Platelet GPIIb/IIIa antagonists are not only used to prevent platelet aggregation, but also in combination with thrombolytic agents for the treatment of coronary thrombi. Recent data indicate a potential of abciximab alone to dissolve thrombi in vivo. We investigated the potential of abciximab, eptifibatide, and tirof...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200304000-00011
更新日期：2003-04-01 00:00:00
abstract：:The acute and chronic arterial effects of the angiotensin-converting enzyme (ACE) inhibitor ramipril were studied in hypertensive patients. Hemodynamic and biological parameters were measured 3 h after the first dose of 5 mg of ramipril, and then again after 4 weeks of treatment, 3 and 24 h after drug administration. ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Cardiovascular medicine is based on high-technology management of end-stage disease. Preventive medicine is preferable but, before magnetic resonance (MR), there was no noninvasive, safe, repeatable method of detecting occlusive vascular disease, which accounts for more deaths than any other disease at a presymptomati...
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：:To evaluate the role of angiotensin II (AII) on diastolic function during post-myocardial infarction (MI) ventricular remodeling, coronary ligation or sham operation was performed in male Sprague-Dawley rats. Experimental animals were maintained on either irbesartan, a selective AT1-receptor antagonist, or no treatmen...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199903000-00014
更新日期：1999-03-01 00:00:00
abstract：:Heart failure is associated with attenuation of parasympathetic nervous function and enhanced renin-angiotensin activity. We tested whether there was a dysfunction in the efferent cholinergic neurotransmission in the heart of rats with chronic myocardial infarction (MI) and the potential role of angiotensin II (Ang II...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199806000-00019
更新日期：1998-06-01 00:00:00
abstract：:Activity in central sympathetic pathways can be modified by stimulating central alpha 2-adrenoceptors, e.g., with clonidine, or, more recently, by stimulating central 5-hydroxytryptamine (5-HT1A) receptors. Stimulation of 5-HT1A receptors causes central sympathoinhibition and an increase in cardiac vagal drive, which ...
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：:In 22 patients with stable myocardial ischemia, we prospectively studied the short- and long-term effects of isosorbide-5-mononitrate (5-ISMN) on dipyridamole-induced myocardial ischemia, the ability of dipyridamole-stress echocardiography to evaluate nitrate tolerance, and the role of activation of the neurohumoral s...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00005344-200007000-00007
更新日期：2000-07-01 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：:We studied the short-term effects of oral administration of nisoldipine (10 mg) and propranolol (80 mg) alone and in combination in 14 patients with chronic exertional angina pectoris in a double-blind, randomized, cross-over study. The 14 patients (13 men and 1 woman, mean age 56 +/- 7 years) performed symptoms-limit...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00005344-199008000-00020
更新日期：1990-08-01 00:00:00
abstract：:The effects of noradrenaline (NA, 10(-5) M) and [arginine8]vasopressin (AVP, 10(-7) M) on tension in Ca2+-free medium and on membrane potential, and the inhibition of NA- and AVP-induced contractions by isradipine, have been compared in mesenteric resistance vessels (MRVs) from Wistar-Kyoto (WKY) rats. The release of ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：:Vasoconstrictor actions of endothelin-1 (ET) were compared between endothelium-removed strips of cerebral (basilar, posterior cerebral, and middle cerebral) and peripheral (coronary and mesenteric) arteries of the dog. ET produced a concentration-dependent contraction in these arteries. A threshold concentration and E...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199204000-00014
更新日期：1992-04-01 00:00:00
abstract：:The acute phase of myocardial infarction promotes an inflammatory response that stimulates inducible nitric oxide synthase (iNOS). We investigated the iNOS role on the rat tail vascular bed reactivity 3 days after myocardial infarction. Vasodilator and vasoconstrictor responses were determined in isolated caudal vascu...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/01.fjc.0000156822.58081.be
更新日期：2005-04-01 00:00:00
abstract：:The cardioprotective effect of angiotensin-converting enzyme (ACE) inhibitors in cardiac ischemia/reperfusion damage is assumed to result largely from inhibition of the enzymatic breakdown of endogenous bradykinin (BK). We assessed the role of nitric oxide (NO) in mediating the beneficial actions of BK and the possibl...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199503000-00014
更新日期：1995-03-01 00:00:00
abstract：:Left coronary artery ligations or sham operations were performed on pentobarbitone-anesthetized rats. The rats were sacrificed at various times after artery occlusion or sham operation and the creatine kinase (CK), potassium (K+), and noradrenaline (NA) content was determined in the left and right ventricular myocardi...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1981-07-01 00:00:00
abstract：:Hypertonic solutions of 0.3 M sodium chloride (NaCl) infused into the third ventricle (ICV) for 20 min in urethane-anesthetized rats consistently elevated mean aortic pressure by approximately 10 mm Hg. Heart rate and sympathetic nerve activity diminished slightly during the first few minutes but then accelerated to a...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198409000-00017
更新日期：1984-09-01 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：:Experiments were designed to examine mechanisms of relaxations to nitric oxide (NO) in venous smooth muscle. Rings of canine femoral veins without endothelium were suspended for measurement of isometric force in organ chambers. Concentration-response curves to NO and 8-Br-cyclic guanosine monophosphate (cGMP) were obt...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199909000-00014
更新日期：1999-09-01 00:00:00
abstract：:Intravenous diltiazem (10-300 micrograms/kg), verapamil (10-300 micrograms/kg), nifedipine (1-100 micrograms/kg) and nicardipine (1-100 micrograms/kg) inhibited the tachycardia caused by cardiac sympathetic nerve stimulation (SNS, 0.5-4 Hz) in decentralized hearts of anesthetized dogs. The dose range of each drug requ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:The effects of two antihypertensive agents, nifedipine (N) and captopril (C), on left ventricular (LV) mass and volume were studied in 16 patients with essential hypertension (8 treated with N and 8 with C for 6 months) by means of a complete M-mode echocardiogram monitored by two-dimensional echocardiography. Both N ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章
doi：
更新日期：1987-01-01 00:00:00
abstract：:We investigated the interaction between nitroxy groups and angiotensin-converting enzyme (ACE) inhibitors to assess the role of sulfhydryl groups and adenosine triphosphate (ATP)-sensitive potassium channels in vasodilation of human coronary resistance vessels in vitro. Coronary resistance vessels were resected from t...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章
doi：10.1097/00005344-200010000-00001
更新日期：2000-10-01 00:00:00
abstract：:This study was designed to determine if Resolvin D1 (RvD1), a pro-resolution metabolite of the omega-3 polyunsaturated fatty acid docosahexaenoic acid, could decrease myocardial infarct size with delivered at the onset of ischemia. Male Sprague Dawley rats underwent 40 minutes of myocardial ischemia followed by reperf...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0000000000000245
更新日期：2015-07-01 00:00:00
abstract：:The phosphodiesterase inhibitor UK 61260 exhibits positive inotropic activity in animal studies and is under clinical investigation for treatment of congestive heart failure (CHF). We examined the lusitropic and inotropic responses to UK 61260 in electrically driven (1 Hz, 37 degrees C) human auricular trabeculae (AUT...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199206000-00019
更新日期：1992-06-01 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 effects of acetaldehyde (ACA) were examined in isolated electrically driven papillary muscle preparations from normal and streptozotocin-treated diabetic rats. Muscles from diabetic rats developed greater tension than those from normal rats. In muscles from both groups, ACA caused concentration-dependent negative ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1995-08-01 00:00:00
abstract：:Our recent studies have shown that the nonpeptide angiotensin II (Ang II) antagonist losartan interacts with thromboxane A2/prostaglandin H2 receptors and inhibits the thromboxane A2 (TxA2) analog U46619-induced vasoconstriction in canine coronary arteries. In this study, we further investigated whether losartan preve...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199808000-00005
更新日期：1998-08-01 00:00:00
