Search Results - "de Hurtado, M C"

Stretch-Induced Alkalinization of Feline Papillary Muscle: An Autocrine-Paracrine System by Cingolani, H.E, Alvarez, B.V, Ennis, I.L, Camilion de Hurtado, NA

“…Myocardial stretch is a well-known stimulus that leads to hypertrophy. Little is known, however, about the intracellular pathways involved in the transmission…”
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Dissociation between positive inotropic and alkalinizing effects of angiotensin II in feline myocardium by Mattiazzi, A, Perez, N G, Vila-Petroff, M G, Alvarez, B, Camilión de Hurtado, M C, Cingolani, H E

“…The present study examines the intracellular pH (pHi) dependence of angiotensin (ANG) II-induced positive inotropic effect in cat papillary muscles contracting…”
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Role of sodium/calcium exchange in the mechanism of myocardial stunning: Protective effect of reperfusion with high sodium solution by Kusuoka, Hideo, de Hurtado, Maria C.Camilion, Marban, Eduardo

“…Objectives. This study was conducted to elucidate the role of sodium/calcium (Na+/Ca2+) exchange in the mechanism of myocardial stunning. Background. Cellular…”
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An electrogenic sodium-bicarbonate cotransport in the regulation of myocardial intracellular pH by Camilión de Hurtado, M C, Pérez, N G, Cingolani, H E

“…Experiments were performed in cat papillary muscles in order to explore the possible existence of an electrogenic Na+/HCO3- cotransport. Developed tension…”
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pHi regulation in myocardium of the spontaneously hypertensive rat : compensated enhanced activity of the Na+-H+ exchanger by PEREZ, N. G, ALVAREZ, B. V, CAMILION DE HURTADO, M. C, CINGOLANI, H. E

“…To elucidate the mechanisms controlling pHi in myocardium of the spontaneously hypertensive rat (SHR), experiments were performed in papillary muscles…”
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Angiotensin II Activates Na+-Independent Cl--HCO3- Exchange in Ventricular Myocardium by de Hurtado, Maria C. Camilion, Alvarez, Bernardo V, Perez, Nestor G, Ennis, Irene L, Cingolani, Horacio E

“…The effect of angiotensin II (Ang II) on the activity of the cardiac Na Cl3 exchanger (anionic exchanger [AE]) was explored in cat papillary muscles. pHi was…”
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Positive chronotropic effect of Bay K 8644: participation of endogenous norepinephrine by CAMILION DE HURTADO, M. C, GENDE, O. A, CINGOLANI, H. E

“…The chronotropic effect of Bay K 8644, a dihydropyridine known to increase the slow inward current, was studied in spontaneously beating rat atria. Increases…”
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Mechanisms underlying the increase in force and Ca(2+) transient that follow stretch of cardiac muscle: a possible explanation of the Anrep effect by Alvarez, B V, Pérez, N G, Ennis, I L, Camilión de Hurtado, M C, Cingolani, H E

“…Myocardial stretch produces an increase in developed force (DF) that occurs in two phases: the first (rapidly occurring) is generally attributed to an increase…”
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Reverse Mode of the Na+-Ca2+ Exchange After Myocardial Stretch: Underlying Mechanism of the Slow Force Response by Pérez, Néstor G, Camilión de Hurtado, María C, Cingolani, Horacio E

“…ABSTRACT—This study was designed to gain additional insight into the mechanism of the slow force response (SFR) to stretch of cardiac muscle. SFR and changes…”
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Enalapril induces regression of cardiac hypertrophy and normalization of pHi regulatory mechanisms by ENNIS, I. L, ALVAREZ, B. V, CAMILION DE HURTADO, M. C, CINGOLANI, H. E

“…Intracellular pH is under strict control in myocardium; H+ are extruded from the cells by sodium-dependent mechanisms, mainly Na+/H+ exchanger and Na+/HCO3-…”
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Chronotropic response to hyperosmotic solutions of isolated rat atria by Gende, O A, Camilión De Hurtado, M C

“…The changes in spontaneous rate of isolated rat atria in response to increased extracellular osmotic pressure were examined using sucrose, urea and several…”
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Role of an electrogenic Na+-HCO3- cotransport in determining myocardial pHi after an increase in heart rate by CAMILION DE HURTADO, M. C, ALVAREZ, B. V, PEREZ, N. G, CINGOLANI, H. E

“…The contribution of electrogenic Na(+)-HCO3- cotransport to pHi regulation during changes in heart rate was explored in cat papillary muscles loaded with…”
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Stimulation of myocardial Na(+)-independent Cl(-)-HCO(3)(-) exchanger by angiotensin II is mediated by endogenous endothelin by de Hurtado, M C, Alvarez, B V, Ennis, I L, Cingolani, H E

“…Experiments were performed in isolated cat papillary muscles loaded with the pH-sensitive dye 2', 7'-bis(2-carboxyethyl)-5(6)-carboxyfluorescein in the…”
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Differences in cyclic AMP response to isoproterenol stimulation induced by changes in pH by Camilión de Hurtado, M C, Argel, M I, Cingolani, H E

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Alpha-adrenoceptor-mediated chronotropic response: influence of temperature and basal spontaneous rate by CAMILION DE HURTADO, M. C, GENDE, O. A

“…The chronotropic response to phenylephrine of isolated rat atria was determined at 37 degrees C and 30 degrees C. At both temperatures similar maximal…”
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An Autocrine/Paracrine Mechanism Triggered by Myocardial Stretch Induces Changes in Contractility by Cingolani, Horacio E, Perez, Nestor G, Camilion de Hurtado, Maria C

“…Horacio E. Cingolani , Néstor G. Pérez and María C. Camilión de Hurtado H. E. Cingolani, N. G. Pérez, and M. C. Camilión de Hurtado are at the Centro de…”
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Bay K 8644 enhances the outflow of [3H]-noradrenaline and [3H]-DOPEG from isolated rat atria by CAMILION DE HURTADO, M. C, GENDE, O. A, CINGOLANI, H. E

“…The effect of Bay K 8644 (a dihydropyridine Ca(2+)-channel activator), was examined on spontaneous and stimulus-evoked release of tritium from isolated rat…”
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Paradoxical effect of calcium on some cardiovascular effects of verapamil in the rat by Camilión de Hurtado, M C, Gende, O A, Berduc, E, Cingolani, H E

“…The ability of calcium infusions to reverse some cardiovascular effects of verapamil was tested in anesthetized rats and on isolated rat atria. Intravenous…”
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Mechanisms Underlying the Increase in Force and Ca2+ Transient That Follow Stretch of Cardiac Muscle: A Possible Explanation of the Anrep Effect by Alvarez, Bernardo V, Pérez, Néstor G, Ennis, Irene L, de Hurtado, María C. Camilión, Cingolani, Horacio E

“…Myocardial stretch produces an increase in developed force (DF) that occurs in two phasesthe first (rapidly occurring) is generally attributed to an increase…”
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Hyperactivity and altered mRNA isoform expression of the Cl−/HCO3− anion-exchanger in the hypertrophied myocardium by Chiappe de Cingolani, G

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