isoproterenol has been researched along with amrinone in 48 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 25 (52.08) | 18.7374 |
| 1990's | 12 (25.00) | 18.2507 |
| 2000's | 7 (14.58) | 29.6817 |
| 2010's | 4 (8.33) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Bobowski, G; Bristol, JA; Duell, BL; Evans, DB; Sircar, I | 1 |
| Topliss, JG; Yoshida, F | 1 |
| Lombardo, F; Obach, RS; Waters, NJ | 1 |
| González-Díaz, H; Orallo, F; Quezada, E; Santana, L; Uriarte, E; Viña, D; Yáñez, M | 1 |
| Barnes, JC; Bradley, P; Day, NC; Fourches, D; Reed, JZ; Tropsha, A | 1 |
| Cantin, LD; Chen, H; Kenna, JG; Noeske, T; Stahl, S; Walker, CL; Warner, DJ | 1 |
| Chen, M; Hu, C; Suzuki, A; Thakkar, S; Tong, W; Yu, K | 1 |
| Goto, Y; LeWinter, MM; Slinker, BK | 1 |
| Parmley, WW; Wikman-Coffelt, J; Wu, ST | 1 |
| Endoh, M; Satoh, H | 1 |
| Alousi, AA; Evans, DB; Grant, AM; Harris, AL; Silver, PJ | 1 |
| Rodger, IW; Shahid, M | 1 |
| Hearse, DJ; Mariani, M; Poddighe, R; Ronca, G; Zucchi, R | 1 |
| Leier, CV | 1 |
| DiSesa, VJ | 1 |
| Bassett, AL; Cameron, JS; Gaide, MS; Lodge, NJ | 1 |
| Boyd, DK; Evans, DB; Quade, M; Schenden, JA; Weishaar, RE | 1 |
| van Meel, JC | 1 |
| Baim, DS | 1 |
| Al Mudhaffar, A; Chemnitius, KH; Hübler, D; Schilling, G | 1 |
| Nielsen-Kudsk, F; Vigholt Sørensen, E | 1 |
| Bonte, J; Col, J; Compere, A; Goenen, M | 1 |
| Bassett, AL; Cameron, JS; Gaide, MS; Kimura, S; Kozlovskis, PL; Lodge, NJ; Myerburg, RJ | 1 |
| DeFeo, TT; Gwathmey, JK; Morgan, JP; Morgan, KG | 1 |
| Carlier, J; el Allaf, D | 1 |
| Fowler, NO; Gabel, M; Millard, RW | 1 |
| Endoh, M; Taira, N; Yamashita, S | 1 |
| Chesebro, JH; Morgan, JP; Pluth, JR; Puga, FJ; Schaff, HV | 1 |
| Boncyk, J; Redon, D; Rusy, B | 1 |
| Kulik, TJ; Lock, JE | 1 |
| Firth, BG; Grassman, ED; Hillis, LD; Nicod, P; Ratner, AV; Winniford, MD | 1 |
| Braunwald, E; DeBoer, LW; Karaffa, S; Khuri, S; Kloner, RA; Maroko, PR; Rude, RE | 1 |
| Maruyama, M; Satoh, K; Taira, N | 1 |
| Alousi, A; Dubé, G; Grupp, G; Grupp, I; Millard, RW; Schwartz, A | 1 |
| Cavallo, MJ; Dorman, BH; Roy, RC; Spinale, FG | 1 |
| Heavner, JE; Pitkänen, MT; Rosenberg, PH; Shi, B | 1 |
| Buser, PT; Jasmin, G; Parmley, WW; Wikman-Coffelt, J; Wu, SY | 1 |
| Banerjee, A; Fullerton, DA; Hahn, AR; Harken, AH | 1 |
| Dhein, S; Fuchs, J; Klaus, W; Rösen, R; Rump, AF; Sigmund, B | 1 |
| Alberdi, E; Castiella, E; Cenarruzabeitia, E; Frechilla, D; Lasheras, B; Martínez de Irujo, JJ; Martinez, FJ; Monge, A; Santiago, E; Villanueva, A | 1 |
| Fujimura, A; Harada, K; Kumagai, Y; Ohashi, K; Ohmori, M | 1 |
| Hassan, S; Mori, M; Obara, H | 1 |
| Layish, DT; Tapson, VF | 1 |
| Kiyota, T; Matsuda, F; Sadohara, T; Sugahara, K; Sugita, M; Terasaki, H | 1 |
| Furuya, H; Inoue, S; Kawaguchi, M; Kitaguchi, K; Kurehara, K; Sakamoto, T | 1 |
| Norton, G; Osadchii, O; Woodiwiss, A | 1 |
| Mansouri, SM; Parsaee, H; Saberi, MR; Sadeghian, H; Seyedi, SM; Shafiee-Nick, R | 1 |
| Crystal, GJ; Salem, MR; Silver, JM | 1 |
4 review(s) available for isoproterenol and amrinone
| Article | Year |
|---|---|
DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
Topics: Chemical and Drug Induced Liver Injury; Databases, Factual; Drug Labeling; Humans; Pharmaceutical Preparations; Risk | 2016 |
The rational selection of inotropic drugs in cardiac surgery.
Topics: Amrinone; Animals; Calcium; Cardiac Surgical Procedures; Cardiotonic Agents; Dobutamine; Dopamine; Epinephrine; Humans; Isoproterenol | 1987 |
Old and new inotropic drugs.
Topics: Adrenergic beta-Agonists; Aminopyridines; Amrinone; Cardiac Glycosides; Cardiotonic Agents; Catecholamines; Glucagon; Hemodynamics; Humans; Imidazoles; Isoproterenol; Myocardial Contraction; Practolol; Prenalterol; Propanolamines; Stimulation, Chemical; Xamoterol | 1984 |
Pharmacologic hemodynamic support in massive pulmonary embolism.
Topics: Amrinone; Animals; Cardiotonic Agents; Dobutamine; Dopamine; Epinephrine; Hemodynamics; Humans; Isoproterenol; Pulmonary Embolism; Vasoconstrictor Agents; Vasodilator Agents | 1997 |
1 trial(s) available for isoproterenol and amrinone
| Article | Year |
|---|---|
Influence of age on venodilator effect of isoproterenol and amrinone.
Topics: Adrenergic beta-Agonists; Adult; Aged; Aged, 80 and over; Aging; Amrinone; Blood Pressure; Cross-Over Studies; Dose-Response Relationship, Drug; Hand; Humans; Isoproterenol; Male; Middle Aged; Pulse; Regional Blood Flow; Vasodilator Agents; Veins | 1996 |
43 other study(ies) available for isoproterenol and amrinone
| Article | Year |
|---|---|
Cardiotonic agents. 2. Synthesis and structure-activity relationships of 4,5-dihydro-6-[4-(1H-imidazol-1-yl)phenyl]-3(2H)-pyridazinones: a new class of positive inotropic agents.
Topics: Adrenergic beta-Antagonists; Animals; Cardiotonic Agents; Chemical Phenomena; Chemistry, Physical; Dogs; Heart Failure; Imidazoles; Myocardial Contraction; Pyridazines; Structure-Activity Relationship | 1985 |
QSAR model for drug human oral bioavailability.
Topics: Administration, Oral; Biological Availability; Humans; Models, Biological; Models, Molecular; Pharmaceutical Preparations; Pharmacokinetics; Structure-Activity Relationship | 2000 |
Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
Topics: Blood Proteins; Half-Life; Humans; Hydrogen Bonding; Infusions, Intravenous; Pharmacokinetics; Protein Binding | 2008 |
Quantitative structure-activity relationship and complex network approach to monoamine oxidase A and B inhibitors.
Topics: Computational Biology; Drug Design; Humans; Isoenzymes; Molecular Structure; Monoamine Oxidase; Monoamine Oxidase Inhibitors; Quantitative Structure-Activity Relationship | 2008 |
Cheminformatics analysis of assertions mined from literature that describe drug-induced liver injury in different species.
Topics: Animals; Chemical and Drug Induced Liver Injury; Cluster Analysis; Databases, Factual; Humans; MEDLINE; Mice; Models, Chemical; Molecular Conformation; Quantitative Structure-Activity Relationship | 2010 |
Mitigating the inhibition of human bile salt export pump by drugs: opportunities provided by physicochemical property modulation, in silico modeling, and structural modification.
Topics: Animals; ATP Binding Cassette Transporter, Subfamily B, Member 11; ATP-Binding Cassette Transporters; Bile Acids and Salts; Cell Line; Chemical and Drug Induced Liver Injury; Humans; Quantitative Structure-Activity Relationship | 2012 |
Effects of amrinone and isoproterenol on mechanoenergetics of blood-perfused rabbit heart.
Topics: Amrinone; Analysis of Variance; Animals; Blood Pressure; Coronary Circulation; Energy Metabolism; Heart; Heart Rate; In Vitro Techniques; Isoproterenol; Myocardial Contraction; Oxygen Consumption; Perfusion; Rabbits; Ventricular Function, Left | 1992 |
Intracellular endocardial calcium and myocardial function in rat hearts.
Topics: Adenosine; Amrinone; Animals; Calcium; Cyclic AMP; Diastole; Endocardium; Isoproterenol; Myocardial Contraction; Norepinephrine; Rats; Second Messenger Systems; Systole; Verapamil | 1991 |
Effects of a new cardiotonic agent 1,2-dihydro-6-methyl-2-oxo-5-[imidazo (1,2-a) pyridin-6-yl]-3-pyridine carbonitrile hydrochloride monohydrate (E-1020) on contractile force and cyclic AMP metabolism in canine ventricular muscle.
Topics: Amrinone; Animals; Bupranolol; Carbachol; Cardiotonic Agents; Cyclic AMP; Dogs; Female; Heart; Heart Ventricles; Imidazoles; In Vitro Techniques; Isometric Contraction; Isoproterenol; Male; Muscle Relaxation; Myocardial Contraction; Myocardium; Pyridones | 1990 |
Differential vasorelaxant effects of milrinone and amrinone on contractile responses of canine coronary, cerebral, and renal arteries.
Topics: 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid; Amrinone; Animals; Cerebral Arteries; Coronary Vessels; Dinoprost; Dogs; Female; In Vitro Techniques; Isoproterenol; Male; Milrinone; Muscle Relaxation; Muscle, Smooth, Vascular; Nimodipine; Potassium; Prostaglandin Endoperoxides, Synthetic; Pyridones; Renal Artery; Sodium Nitrite | 1989 |
Chronotropic and inotropic actions of amrinone, carbazeran and isobutylmethyl xanthine: role of phosphodiesterase inhibition.
Topics: 1-Methyl-3-isobutylxanthine; Amrinone; Animals; Carbamates; Cardiovascular Agents; Cyclic AMP; Cyclic GMP; Electric Stimulation; Heart; Heart Rate; In Vitro Techniques; Isoproterenol; Male; Myocardial Contraction; Papillary Muscles; Phosphodiesterase Inhibitors; Rabbits; Theophylline | 1989 |
[Functional changes induced by adrenergic purinergic receptors and adenyl cyclase activators in the isolated heart].
Topics: Adenosine; Amrinone; Animals; Colforsin; Coronary Circulation; Heart; Heart Rate; In Vitro Techniques; Isoproterenol; Myocardial Contraction; Perfusion; Rats; Rats, Inbred Strains; Receptors, Adrenergic, beta; Receptors, Purinergic | 1987 |
General overview and update of positive inotropic therapy.
Topics: Amrinone; Blood Pressure; Cardiotonic Agents; Digitoxin; Dobutamine; Dopamine; Enoximone; Heart Failure; Hemodynamics; Humans; Imidazoles; Isoproterenol; Milrinone; Norepinephrine; Phosphodiesterase Inhibitors; Pyridones; Stroke Volume; Time Factors | 1986 |
Enhanced relaxation and reduced positive inotropic effects of amrinone in ventricular muscle from cats with subacute heart failure. Implications for drug therapy.
Topics: Aminopyridines; Amrinone; Animals; Blood Pressure; Cardiac Output; Cardiotonic Agents; Cats; Cyclic AMP; Heart Failure; Heart Ventricles; Isoproterenol; Myocardial Contraction; Potassium | 1985 |
Studies aimed at elucidating the mechanism of action of CI-914, a new cardiotonic agent.
Topics: Adenosine Triphosphate; Adenylyl Cyclases; Aminopyridines; Amrinone; Animals; Calcium; Cardiotonic Agents; Cyclic AMP; Dogs; Guinea Pigs; In Vitro Techniques; Isoproterenol; Male; Mitochondria, Heart; Myocardial Contraction; Myocardium; Ouabain; Papaverine; Papillary Muscles; Phosphodiesterase Inhibitors; Pyridazines; Rabbits; Sarcoplasmic Reticulum; Sodium-Potassium-Exchanging ATPase; Theophylline | 1985 |
Comparison of some new positive inotropic agents in guinea pigs.
Topics: Aminopyridines; Amrinone; Animals; Blood Pressure; Cardiotonic Agents; Dose-Response Relationship, Drug; Enoximone; Guinea Pigs; Heart Rate; Hydralazine; Imidazoles; Isoproterenol; Male; Myocardial Contraction; Ouabain; Vasodilation | 1985 |
Effects of amrinone on myocardial energetics in severe congestive heart failure.
Topics: Aminopyridines; Amrinone; Animals; Cardiotonic Agents; Coronary Circulation; Dogs; Enoximone; Heart; Heart Failure; Humans; Imidazoles; Isoproterenol; Milrinone; Myocardial Contraction; Myocardium; Oxygen Consumption; Phosphodiesterase Inhibitors; Pyridones | 1985 |
[Comparison of the cardiovascular actions of Cordemcura, isoprenaline and dobutamine in cats].
Topics: Aminopyridines; Amrinone; Animals; Cardiotonic Agents; Cats; Dobutamine; Dose-Response Relationship, Drug; Hemodynamics; Isoproterenol | 1986 |
Myocardial pharmacodynamics of dopamine, dobutamine, amrinone and isoprenaline compared in the isolated rabbit heart.
Topics: Aminopyridines; Amrinone; Animals; Coronary Circulation; Dobutamine; Dopamine; Female; Heart; Heart Rate; In Vitro Techniques; Isoproterenol; Male; Myocardial Contraction; Myocardium; Oxygen Consumption; Rabbits | 1986 |
Treatment of severe verapamil poisoning with combined amrinone-isoproterenol therapy.
Topics: Adolescent; Amrinone; Drug Therapy, Combination; Humans; Isoproterenol; Male; Verapamil | 1986 |
Effects of amrinone on contraction and K+-induced contracture of normal and subacutely failed cat ventricular muscle.
Topics: Aminopyridines; Amrinone; Animals; Cardiotonic Agents; Cats; Dogs; Dose-Response Relationship, Drug; Guinea Pigs; Heart Failure; Hemodynamics; Isoproterenol; Myocardial Contraction; Nadolol; Ouabain; Potassium; Propanolamines | 1986 |
The effects of amrinone and related drugs on intracellular calcium in isolated mammalian cardiac and vascular smooth muscle.
Topics: Actin Cytoskeleton; Aequorin; Aminopyridines; Amrinone; Animals; Caffeine; Calcium; Cats; Dose-Response Relationship, Drug; Female; Ferrets; Isoproterenol; Male; Muscle, Smooth, Vascular; Myocardium; Time Factors | 1986 |
Hemodynamic and regional blood flow distribution responses to dextran, hydralazine, isoproterenol and amrinone during experimental cardiac tamponade.
Topics: Aminopyridines; Amrinone; Animals; Blood Pressure; Blood Volume; Cardiac Output; Cardiac Tamponade; Cardiotonic Agents; Dextrans; Dogs; Female; Heart Rate; Hemodynamics; Hydralazine; Isoproterenol; Male; Microspheres; Radioisotopes; Regional Blood Flow; Stroke Volume; Vascular Resistance | 1983 |
Positive inotropic effect of amrinone in relation to cyclic nucleotide metabolism in the canine ventricular muscle.
Topics: 3',5'-Cyclic-AMP Phosphodiesterases; Aminopyridines; Amrinone; Animals; Carbachol; Cardiotonic Agents; Cyclic AMP; Cyclic GMP; Dogs; Drug Interactions; Female; In Vitro Techniques; Isoproterenol; Male; Myocardium; Time Factors | 1982 |
Intracellular calcium transients in human working myocardium as detected with aequorin.
Topics: Aequorin; Aminopyridines; Amrinone; Calcium; Culture Techniques; Digitalis Glycosides; Humans; Ion Channels; Isoproterenol; Luminescent Proteins; Myocardial Contraction; Myocardium; Papillary Muscles; Theophylline; Time Factors | 1984 |
Hemodynamic effects of amrinone in dogs anesthetized with halothane: comparison with isoproterenol and dobutamine.
Topics: Aminopyridines; Amrinone; Anesthesia, Inhalation; Animals; Blood Pressure; Cardiac Output; Cardiotonic Agents; Catecholamines; Dobutamine; Dogs; Female; Halothane; Hemodynamics; Infusions, Parenteral; Isoproterenol; Male; Pulmonary Artery; Vascular Resistance | 1984 |
Pulmonary vasodilator therapy in persistent pulmonary hypertension of the newborn.
Topics: Acetylcholine; Aminopyridines; Amrinone; Bradykinin; Chlorpromazine; Humans; Infant, Newborn; Isoproterenol; Lung; Nitroprusside; Persistent Fetal Circulation Syndrome; Prostaglandins; Tolazoline; Vascular Resistance; Vasoconstriction; Vasodilator Agents | 1984 |
Assessment of the inotropic and vasodilator effects of amrinone versus isoproterenol.
Topics: Aminopyridines; Amrinone; Blood Pressure; Cardiac Catheterization; Cardiac Output; Cardiotonic Agents; Dose-Response Relationship, Drug; Heart Rate; Hemodynamics; Humans; Isoproterenol; Pulmonary Wedge Pressure; Stroke Volume; Vascular Resistance; Vasodilator Agents | 1984 |
Effects of amrinone on experimental acute myocardial ischaemic injury.
Topics: Aminopyridines; Amrinone; Animals; Carbon Dioxide; Cardiotonic Agents; Dogs; Electrocardiography; Hemodynamics; Isoproterenol; Myocardial Infarction; Myocardium | 1980 |
Effects of amrinone on the tracheal musculature and vasculature of the dog.
Topics: Aminopyridines; Amrinone; Animals; Cardiotonic Agents; Dogs; Dose-Response Relationship, Drug; Isoproterenol; Muscle, Smooth, Vascular; Trachea | 1981 |
Direct vasodilator and positive inotropic actions of amrinone.
Topics: Aminopyridines; Amrinone; Animals; Calcium Chloride; Coronary Circulation; Dogs; Dose-Response Relationship, Drug; Guinea Pigs; In Vitro Techniques; Isoproterenol; Myocardial Contraction; Rats; Regional Blood Flow; Species Specificity; Stimulation, Chemical; Vasodilator Agents | 1980 |
The direct and interactive effects of phosphodiesterase inhibition and beta-adrenergic stimulation on myocyte contractile function after hypothermic cardioplegic arrest.
Topics: Adrenergic beta-Agonists; Amrinone; Animals; Cold Temperature; Drug Interactions; Heart Arrest, Induced; In Vitro Techniques; Isoproterenol; Myocardial Contraction; Phosphodiesterase Inhibitors; Swine | 1995 |
Resuscitation from bupivacaine-induced asystole in rats: comparison of different cardioactive drugs.
Topics: Amrinone; Animals; Blood Pressure; Bupivacaine; Cardiotonic Agents; Dopamine; Electrocardiography; Epinephrine; Heart Arrest; Isoproterenol; Male; Norepinephrine; Rats; Rats, Sprague-Dawley; Resuscitation | 1995 |
Distinct modulation of myocardial performance, energy metabolism, and [Ca2+]i transients by positive inotropic drugs in normal and severely failing hamster hearts.
Topics: Amrinone; Animals; Blood Pressure; Bucladesine; Calcium; Cardiomyopathies; Cardiotonic Agents; Cricetinae; Digoxin; Disease Models, Animal; Dobutamine; Energy Metabolism; Heart Failure; Isoproterenol; Magnetic Resonance Spectroscopy; Mesocricetus; Myocardial Contraction; Oxygen Consumption; Phosphates; Phosphorylation | 1995 |
Pulmonary vascular smooth muscle relaxation by cGMP- versus cAMP-mediated mechanisms.
Topics: Alprostadil; Amrinone; Analysis of Variance; Animals; Cyclic AMP; Cyclic GMP; Dose-Response Relationship, Drug; Guanylate Cyclase; In Vitro Techniques; Isoproterenol; Male; Muscle Relaxation; Muscle, Smooth, Vascular; Nitroglycerin; Nitroprusside; Phosphodiesterase Inhibitors; Pulmonary Artery; Rats; Rats, Sprague-Dawley; Receptors, Adrenergic, beta; Receptors, Prostaglandin E; Vasodilation; Vasodilator Agents | 1994 |
Beneficial effect of amrinone on the size of acute regional ischemia in isolated rabbit hearts.
Topics: Amrinone; Animals; Blood Pressure; Coronary Circulation; Fluorescence; Histocytochemistry; In Vitro Techniques; Isoproterenol; Male; Myocardial Contraction; Myocardial Ischemia; Myocardium; NAD; Ouabain; Rabbits; Ventricular Function, Left | 1993 |
Inotropic and chronotropic effects of 4-(4'-n-butylaniline)-7,8- dimethoxy-5H-pyrimido[5,4-b]indole in guinea-pig atria.
Topics: 3',5'-Cyclic-AMP Phosphodiesterases; Adrenergic beta-Antagonists; Amrinone; Animals; Carbachol; Cardiotonic Agents; Cyclic AMP; Cyclic GMP; Dogs; Dose-Response Relationship, Drug; Guinea Pigs; Heart; Heart Atria; Heart Ventricles; Indoles; Isoenzymes; Isoproterenol; Male; Myocardial Contraction; Phosphodiesterase Inhibitors; Pyrimidines | 1995 |
The vasorelaxant effects of amrinone on neonatal rabbit thoracic aortic strips.
Topics: Adrenergic beta-Antagonists; Amrinone; Animals; Animals, Newborn; Aorta, Thoracic; Colforsin; Culture Techniques; Female; Isoproterenol; Male; Phosphodiesterase Inhibitors; Rabbits; Theophylline; Vasodilator Agents | 1996 |
Comparative effect of amrinone, aminophylline and diltiazem on rat airway smooth muscle.
Topics: Acetylcholine; Adrenergic beta-Agonists; Aminophylline; Amrinone; Animals; Bronchodilator Agents; Calcium Channel Blockers; Diltiazem; In Vitro Techniques; Isoproterenol; Milrinone; Muscle Relaxation; Muscle, Smooth; Rats; Rats, Wistar; Trachea | 2000 |
Effect of mild hypothermia on inodilator-induced vasodilation of pial arterioles in cats.
Topics: Administration, Topical; Amrinone; Animals; Arterioles; Body Temperature; Cardiotonic Agents; Cats; Colforsin; Dose-Response Relationship, Drug; Hemodynamics; Hypothermia, Induced; Isoproterenol; Pia Mater; Vasodilation; Vasodilator Agents | 2002 |
Inotropic responses to phosphodiesterase inhibitors in cardiac hypertrophy in rats.
Topics: 8-Bromo Cyclic Adenosine Monophosphate; Amrinone; Animals; Blood Pressure; Cardiomegaly; Cardiotonic Agents; Dose-Response Relationship, Drug; Heart; In Vitro Techniques; Isoproterenol; Male; Myocardial Contraction; Myocardium; Organ Size; Pentoxifylline; Phosphodiesterase Inhibitors; Rats; Rats, Inbred SHR; Rats, Inbred WKY; Rolipram | 2005 |
Inotropic and chronotropic effects of 6-hydroxy-4-methylquinolin-2(1H)-one derivatives in isolated rat atria.
Topics: Amrinone; Animals; Atrial Function; Cardiotonic Agents; Cyclic Nucleotide Phosphodiesterases, Type 3; Dose-Response Relationship, Drug; Heart Rate; In Vitro Techniques; Isoproterenol; Male; Phosphodiesterase 3 Inhibitors; Phosphodiesterase Inhibitors; Quinolines; Rats; Rats, Wistar; Structure-Activity Relationship | 2008 |
Mechanisms of increased right and left ventricular oxygen uptake during inotropic stimulation.
Topics: Amrinone; Animals; Cardiotonic Agents; Dobutamine; Dogs; Female; Heart Ventricles; Isoproterenol; Male; Myocardial Contraction; Oxygen Consumption; Stimulation, Chemical; Vasodilator Agents | 2013 |