Regulation of calcium current by intracellular calcium in smooth muscle cells of rabbit portal vein.

abstract：:Coronary pressure-flow relations during autoregulated and vasodilated flow states were compared between eight dogs with renovascular hypertension and left ventricular hypertrophy and 12 normal dogs. Each relation was constructed from serial steady-state measurements of end-diastolic coronary pressure and flow during p...

journal_title：Circulation research

authors： Jeremy RW,Fletcher PJ,Thompson J

更新日期：1989-07-01 00:00:00

abstract：:We studied the specificity of uptake of infarct-imaging agents for reversibly or irreversibly injured myocardium independently of blood flow by using intact beating fetal mouse hearts in organ culture. Reversible injury resulted from deprivation of oxygen and glucose for 4 hours at 37 degrees C; irreversible injury, f...

journal_title：Circulation research

authors： Schelbert HR,Ingwall JS,Sybers HD,Ashburn WL

更新日期：1976-12-01 00:00:00

abstract：:5-Hydroxytryptamine (5-HT)(1B) receptors mediate contraction in human pulmonary arteries, and 5-HT(1B) receptor-mediated contraction is enhanced in pulmonary arteries from hypoxic rats. Here we further examine the role of this receptor in the development of pulmonary hypertension (PHT) by examining (1) the effects of ...

journal_title：Circulation research

authors： Keegan A,Morecroft I,Smillie D,Hicks MN,MacLean MR

更新日期：2001-12-07 00:00:00

abstract：:Catecholamines and catecholamine-synthesizing enzymes have been examined in specific brain areas during the development of spontaneously (genetic) hypertensive (SH) rats. Changes in catecholamine metabolism were localized to regions of the brain implicated in the regulation of blood pressure. Norepinephrine levels and...

journal_title：Circulation research

authors： Saavedra JM,Grobecker H,Axelrod J

更新日期：1978-04-01 00:00:00

abstract：:The enzyme heme oxygenase, which exists in inducible (HO-1) and constitutive (HO-2) isoforms, catalyzes the degradation of heme to biliverdin and CO in mammalian tissues. CO has been implicated in the control of vascular tone in a manner similar to that for NO. In the present study, we investigated the contribution of...

journal_title：Circulation research

authors： Motterlini R,Gonzales A,Foresti R,Clark JE,Green CJ,Winslow RM

更新日期：1998-09-07 00:00:00

abstract：:Although human atherosclerosis is associated with aging, direct evidence of cellular senescence and the mechanism of senescence in vascular smooth muscle cells (VSMCs) in atherosclerotic plaques is lacking. We examined normal vessels and plaques by histochemistry, Southern blotting, and fluorescence in situ hybridizat...

journal_title：Circulation research

authors： Matthews C,Gorenne I,Scott S,Figg N,Kirkpatrick P,Ritchie A,Goddard M,Bennett M

更新日期：2006-07-21 00:00:00

abstract：:The purpose of this study was to determine whether increased sympathetic nervous system activity with proportionally greater stimulation to the kidney could result in sustained hypertension. This was simulated by continuous intrarenal norepinephrine infusion. Effects of chronic infusion of norepinephrine (0.285 micron...

journal_title：Circulation research

authors： Katholi RE,Carey RM,Ayers CR,Vaughan ED Jr,Yancey MR,Morton CL

更新日期：1977-05-01 00:00:00

abstract：:We studied postclamp renal artery pressure and renin release in eight conscious dogs with one-kidney Goldblatt hypertension. On normal sodium intake, intrarenal blockade of angiotensin II with Sar1-Ala8-angiotension II (P-113, saralasin acetate) markedly decreased postclamp renal artery pressure and increased renin re...

journal_title：Circulation research

authors： Ayers CR,Katholi RE,Vaughan ED Jr,Carey RM,Kimbrough HM Jr,Yancey MR,Morton CL

更新日期：1977-03-01 00:00:00

abstract：:We designed this study to test the hypothesis that in acute mitral regurgitation the mitral regurgitant area (MRA) is a dynamic quantity which varies with the time variation of ventricular volume. Mitral insufficiency was created in five open-chest dogs in which a portion of the anterior leaflet was excised. Phasic ao...

journal_title：Circulation research

authors： Yellin EL,Yoran C,Sonnenblick EH,Gabbay S,Frater RW

更新日期：1979-11-01 00:00:00

abstract：RATIONALE:Activation of the mitochondrial ATP-sensitive potassium channel (mitoK(ATP)) has been implicated in the mechanism of cardiac ischemic preconditioning, yet its molecular composition is unknown. OBJECTIVE:To use an unbiased proteomic analysis of the mitochondrial inner membrane to identify the mitochondrial K(...

journal_title：Circulation research

authors： Foster DB,Ho AS,Rucker J,Garlid AO,Chen L,Sidor A,Garlid KD,O'Rourke B

更新日期：2012-08-03 00:00:00

abstract：:Many cell types undergo apoptosis under conditions of ischemia. Little is known, however, about the molecular pathways that mediate this response. A cellular and biochemical approach to elucidate such signaling pathways was undertaken in primary cultures of cardiac myocytes, a cell type that is especially sensitive to...

journal_title：Circulation research

authors： Bialik S,Cryns VL,Drincic A,Miyata S,Wollowick AL,Srinivasan A,Kitsis RN

更新日期：1999-09-03 00:00:00

abstract：:Although Ca(2+) waves in cardiac myocytes are regarded as arrhythmogenic substrates, their properties in the heart in situ are poorly understood. On the hypothesis that Ca(2+) waves in the heart behave diversely and some of them influence the cardiac function, we analyzed their incidence, propagation velocity, and int...

journal_title：Circulation research

authors： Kaneko T,Tanaka H,Oyamada M,Kawata S,Takamatsu T

更新日期：2000-05-26 00:00:00

abstract：:Nonischemic dilated cardiomyopathy (DCM) often has a genetic pathogenesis. Because of the large number of genes and alleles attributed to DCM, comprehensive genetic testing encompasses ever-increasing gene panels. Genetic diagnosis can help predict prognosis, especially with regard to arrhythmia risk for certain subty...

journal_title：Circulation research

authors： McNally EM,Mestroni L

更新日期：2017-09-15 00:00:00

abstract：:Although diabetes is recognized as a potent and prevalent risk factor for ischemic heart disease, less is known as to whether diabetes causes an altered cardiac phenotype independent of coronary atherosclerosis. Left ventricular systolic and diastolic dysfunction, left ventricular hypertrophy, and alterations in the c...

journal_title：Circulation research

authors： Poornima IG,Parikh P,Shannon RP

更新日期：2006-03-17 00:00:00

abstract：:The mechanical properties of mammalian ventricular cardiac muscle have been studied in the presence and in the absence of an intact endocardial surface. Isotonic and isometric twitch contractions were obtained from papillary muscles of the right ventricle of cat at 29 degrees and 37 degrees C, at different extracellul...

journal_title：Circulation research

authors： Brutsaert DL,Meulemans AL,Sipido KR,Sys SU

更新日期：1988-02-01 00:00:00

abstract：:Compared with the adult, neonatal heart muscle is less sensitive to deactivation by acidic pH. We hypothesized that expression of slow skeletal troponin I (ssTnI), the embryonic isoform, in adult heart would help maintain left ventricular (LV) systolic function during respiratory hypercapnia. We assessed LV function b...

journal_title：Circulation research

authors： Urboniene D,Dias FA,Peña JR,Walker LA,Solaro RJ,Wolska BM

更新日期：2005-07-08 00:00:00

abstract：:Nuclear factor kappa B (NF-kappaB) participates in hypertension-induced vascular and target-organ damage. We tested whether or not endothelial cell-specific NF-kappaB suppression would be ameliorative. We generated Cre/lox transgenic mice with endothelial cell-restricted NF-kappaB super-repressor IkappaBalphaDeltaN (T...

journal_title：Circulation research

authors： Henke N,Schmidt-Ullrich R,Dechend R,Park JK,Qadri F,Wellner M,Obst M,Gross V,Dietz R,Luft FC,Scheidereit C,Muller DN

更新日期：2007-08-03 00:00:00

abstract：:Existing evidence led us to hypothesize that increases in p85alpha, a regulatory subunit of PI3-kinase, in presympathetic brain areas contribute to hypertension. PI3-kinase p85alpha, p110alpha, and p110delta mRNA was 1.5- to 2-fold higher in the paraventricular nucleus (PVN) of spontaneously hypertensive rats (SHR) co...

journal_title：Circulation research

authors： Veerasingham SJ,Yamazato M,Berecek KH,Wyss JM,Raizada MK

更新日期：2005-02-18 00:00:00

abstract：:The signaling pathways involved in the long-term metabolic effects of angiotensin II (Ang II) in vascular smooth muscle cells are incompletely understood but include the generation of molecules likely to affect oxidase activity. We examined the ability of Ang II to stimulate superoxide anion formation and investigated...

journal_title：Circulation research

authors： Griendling KK,Minieri CA,Ollerenshaw JD,Alexander RW

更新日期：1994-06-01 00:00:00

abstract：:Atherosclerotic lesion development seems to be inflammatory in nature and involves the recruitment of monocytes to the vessel wall. In this study, we investigated the role of vascular cell adhesion molecule-1 (VCAM-1) and fibronectin (FN) connecting segment-1 containing the amino acid sequence ILDV as functional ligan...

journal_title：Circulation research

authors： Huo Y,Hafezi-Moghadam A,Ley K

更新日期：2000-07-21 00:00:00

abstract：:Left ventricular (LV) remodeling after experimental myocardial infarction (MI) is associated with hypertrophy of noninfarcted myocardium and electrophysiological alterations. We have recently shown that post-MI hypertrophied LV myocytes have prolonged action potential duration (APD) and generate triggered activity fro...

journal_title：Circulation research

authors： Gidh-Jain M,Huang B,Jain P,el-Sherif N

更新日期：1996-10-01 00:00:00

abstract：:The effect of hypercapnia on coronary vascular resistance (CVR) was studied in seven open-chest dogs. Coronary blood flow was supplied to the cannulated left main coronary artery from the femoral artery by a precision pump. Coronary arterial PCO2 was locally controlled with a small membrane oxygenator in the coronary ...

journal_title：Circulation research

authors： Case RB,Greenberg H

更新日期：1976-10-01 00:00:00

abstract：:Intussusceptive angiogenesis is a novel mode of blood vessel formation and remodeling, which occurs by internal division of the preexisting capillary plexus without sprouting. In this study, the process is demonstrated in developing chicken eye vasculature and in the chorioallantoic membrane by methylmethacrylate (Mer...

journal_title：Circulation research

authors： Djonov V,Schmid M,Tschanz SA,Burri PH

更新日期：2000-02-18 00:00:00

abstract：RATIONALE:Cryptogenic strokes, those of unknown cause, have been estimated as high as 30% to 40% of strokes. Inflammation has been suggested as a critical etiologic factor. However, there is lack of experimental evidence. OBJECTIVE:In this study, we investigated inflammation-associated stroke using a mouse model that ...

journal_title：Circulation research

authors： Hollander MC,Latour LL,Yang D,Ishii H,Xiao Z,Min Y,Ray-Choudhury A,Munasinghe J,Merchant AS,Lin PC,Hallenbeck J,Boehm M,Yang L

更新日期：2017-12-08 00:00:00

abstract：:Blockade of angiotensin type 1 (AT1) receptors induces smooth muscle cell (SMC) death and regression of aortic hypertrophy in spontaneously hypertensive rats (SHR). We postulated that SMC death and vascular remodeling in this model may be attenuated by z-Val-Ala-Asp(OMe)-CH2F (z-VAD-fmk), a tripeptide inhibitor of cas...

journal_title：Circulation research

authors： Marchand EL,Der Sarkissian S,Hamet P,deBlois D

更新日期：2003-04-18 00:00:00

abstract：RATIONALE:MicroRNA (miR)-1 and -133 play a crucial role in skeletal and cardiac muscle biology and pathophysiology. However, their expression and regulation in vascular cell physiology and disease is currently unknown. OBJECTIVE:The aim of the present study was to evaluate the role, if any, of miR-1 and miR-133 in vas...

journal_title：Circulation research

authors： Torella D,Iaconetti C,Catalucci D,Ellison GM,Leone A,Waring CD,Bochicchio A,Vicinanza C,Aquila I,Curcio A,Condorelli G,Indolfi C

更新日期：2011-09-30 00:00:00

abstract：:We recently showed that the transient expression of a hemagglutinin (HA) epitope-tagged, constitutively active mutant of the G protein alpha(q) subunit (HAalpha(q)*) in the hearts of transgenic mice is sufficient to induce cardiac hypertrophy and dilatation that continue to progress after HAalpha(q)* protein becomes u...

journal_title：Circulation research

authors： Mende U,Kagen A,Meister M,Neer EJ

更新日期：1999-11-26 00:00:00

abstract：:The ionic currents that cross the myocardial membrane during cardiac activation have a corresponding return path in the extracellular space. The transmembrane current (Im) during activation of cardiac cells in situ has previously been envisioned only in mathematical models. We have developed a remarkably simple in viv...

journal_title：Circulation research

authors： Witkowski FX,Kavanagh KM,Penkoske PA,Plonsey R

更新日期：1993-02-01 00:00:00

abstract：:Experiments were designed to determine the contribution of endothelial cells to the heterogeneous behavior of the arterial and venous wall. Rings of canine femoral, pulmonary, saphenous, and splenic arteries and veins, with and without endothelium, were mounted for isometric tension recording in Krebs-Ringer bicarbona...

journal_title：Circulation research

authors： De Mey JG,Vanhoutte PM

更新日期：1982-10-01 00:00:00

abstract：:We determined the effects of changing the spatial dispersion of acetylcholine release on the phase-dependent chronotropic responses to vagal stimulation in anesthetized dogs. We stimulated the vagus nerves with one brief burst of electrical pulses each cardiac cycle, and we changed the timing of the stimulus by a smal...

journal_title：Circulation research

authors： Yang TE,Cheng J,Levy MN

更新日期：1990-10-01 00:00:00