High-density lipoprotein: vascular protective effects, dysfunction, and potential as therapeutic target.

abstract：:Ablation of the enzyme phosphoinositide 3-kinase (PI3K)gamma (PI3Kgamma(-/-)) in mice increases cardiac contractility by elevating intracellular cAMP and enhancing sarcoplasmic reticulum Ca(2+) handling. Because cAMP is a critical determinant of heart rate, we investigated whether heart rate is altered in mice lacking...

journal_title：Circulation research

authors： Rose RA,Kabir MG,Backx PH

更新日期：2007-12-07 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：:Vascular remodeling, rather than vasoconstriction, is believed to account for high vascular resistance in severe pulmonary arterial hypertension (PAH). We have found previously that acute Rho kinase inhibition nearly normalizes PAH in chronically hypoxic rats that have no occlusive neointimal lesions. Here we examined...

journal_title：Circulation research

authors： Oka M,Homma N,Taraseviciene-Stewart L,Morris KG,Kraskauskas D,Burns N,Voelkel NF,McMurtry IF

更新日期：2007-03-30 00:00:00

abstract：:T-wave alternans (TWA), an ABAB oscillation, has been postulated as the initial pattern in a stepwise progression to higher-order oscillations, culminating in sudden arrhythmic death. The present study is the first to provide experimental evidence to support this intriguing concept. Epicardial and endocardial ECGs fro...

journal_title：Circulation research

authors： Nearing BD,Verrier RL

更新日期：2002-10-18 00:00:00

abstract：RATIONALE:Mechanical stress plays an important role in proliferation of venous smooth muscle cells (SMCs) in neointima, a process of formation that contributes to failure of vein grafts. However, it is unknown what intracellular growth signal leads to proliferation of venous SMCs. OBJECTIVE:The objective of this study...

journal_title：Circulation research

authors： Cheng J,Wang Y,Ma Y,Chan BT,Yang M,Liang A,Zhang L,Li H,Du J

更新日期：2010-11-12 00:00:00

abstract：:The purpose of this study was to investigate if myogenic responses of isolated coronary arterioles were dependent on an intact, functional endothelium. Arterioles were located in situ by intracoronary perfusion with india ink-gelatin solution and then dissected and cannulated at both ends with glass micropipettes. Int...

journal_title：Circulation research

authors： Kuo L,Chilian WM,Davis MJ

更新日期：1990-03-01 00:00:00

abstract：:Choline acetyltransferase activity, which is rate limiting in acetylcholine biosynthesis, was measured in the four heart chambers of guinea pigs subjected to (1) sham surgery, (2) constriction of the ascending aorta, (3) constriction of the descending thoracic aorta, and (4) constriction of the pulmonary artery. After...

journal_title：Circulation research

authors： Roskoski R Jr,Schmid PG,Mayer HE,Abboud FM

更新日期：1975-04-01 00:00:00

abstract：RATIONALE:Mutations in GJC2 and GJA1, encoding Cxs (connexins) 47 and 43, respectively, are linked to lymphedema, but the underlying mechanisms are unknown. Because efficient lymph transport relies on the coordinated contractions of lymphatic muscle cells (LMCs) and their electrical coupling through Cxs, Cx-related lym...

journal_title：Circulation research

authors： Castorena-Gonzalez JA,Zawieja SD,Li M,Srinivasan RS,Simon AM,de Wit C,de la Torre R,Martinez-Lemus LA,Hennig GW,Davis MJ

更新日期：2018-09-28 00:00:00

abstract：:Ischemia and simulated ischemic conditions induce enhanced release of norepinephrine (NE) in the brain and the heart. Although studies with neuronal preparations demonstrated a rise in [Ca2+]i under energy-depleted conditions, such release of NE in the heart appears to be predominantly Ca2+ independent. Since Ca2+ ove...

journal_title：Circulation research

authors： Du XJ,Bobik A,Little PJ,Esler MD,Dart AM

更新日期：1997-02-01 00:00:00

abstract：:Freshly dispersed rabbit ear artery cells were studied using patch-clamp techniques to measure membrane currents in whole cells and single-channel currents in membrane patches. Whole-cell calcium currents recorded at physiologic extracellular calcium concentrations were small (approximately 10 pA). Recordings with 110...

journal_title：Circulation research

authors： Benham CD,Hess P,Tsien RW

更新日期：1987-10-01 00:00:00

abstract：:We determined age-related differences in automaticity and responsiveness of cardiac Purkinje fibers from adult and neonatal dogs to graded concentrations of epinephrine, isoproterenol, and phenylephrine. Purkinje fibers were studied with standard microelectrode techniques during superfusion with Tyrode's solution at 3...

journal_title：Circulation research

authors： Rosen MR,Hordof AJ,Ilvento JP,Danilo P Jr

更新日期：1977-04-01 00:00:00

abstract：:The sinoatrial node, which resides at the junction of the right atrium and the superior caval vein, contains specialized myocardial cells that initiate the heart beat. Despite this fundamental role in heart function, the embryonic origin and mechanisms of localized formation of the sinoatrial node have not been define...

journal_title：Circulation research

authors： Mommersteeg MT,Hoogaars WM,Prall OW,de Gier-de Vries C,Wiese C,Clout DE,Papaioannou VE,Brown NA,Harvey RP,Moorman AF,Christoffels VM

更新日期：2007-02-16 00:00:00

abstract：:Isolated cardiac conduction disease is an autosomal dominant defect that includes various combinations of bundle branch or fascicular blocks. These defects can cause sudden death due to a complete heart block. We used a genome-wide screening approach with polymorphic (CA)n repeat markers to determine the chromosomal p...

journal_title：Circulation research

authors： de Meeus A,Stephan E,Debrus S,Jean MK,Loiselet J,Weissenbach J,Demaille J,Bouvagnet P

更新日期：1995-10-01 00:00:00

abstract：:Vascular disease often involves vessel hypertrophy with underlying cellular hypertrophy or hyperplasia. Experimental diabetes stimulates hypertrophy of the rat mesenteric vasculature, and we investigated the hypothesis that this hypertrophy is associated with activation of Na(+)-H(+) exchange (NHE) activity. We measur...

journal_title：Circulation research

authors： Jandeleit-Dahm K,Hannan KM,Farrelly CA,Allen TJ,Rumble JR,Gilbert RE,Cooper ME,Little PJ

更新日期：2000-12-08 00:00:00

abstract：:The present study was undertaken to determine the mechanism of neointima formation in rabbit arteries subjected to extensive endothelial desquamation. Endothelial cells were selectively removed from the abdominal aorta by passing an inflated balloon catheter through the vessel. The healing response was then studied se...

journal_title：Circulation research

authors： Spaet TH,Stemerman MB,Veith FJ,Lejnieks I

更新日期：1975-01-01 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：RATIONALE:Histone deacetylase (HDAC)7 is expressed in the early stages of embryonic development and may play a role in endothelial function. OBJECTIVE:This study aimed to investigate the role of HDAC7 in endothelial cell (EC) proliferation and growth and the underlying mechanism. METHODS AND RESULTS:Overexpression of...

journal_title：Circulation research

authors： Margariti A,Zampetaki A,Xiao Q,Zhou B,Karamariti E,Martin D,Yin X,Mayr M,Li H,Zhang Z,De Falco E,Hu Y,Cockerill G,Xu Q,Zeng L

更新日期：2010-04-16 00:00:00

abstract：:Postischemic endothelial dysfunction may occur as a result of the effects of endogenous oxidants like hydrogen peroxide. Since endothelium-dependent vasodilator function may be affected by pHi, the effect of hydrogen peroxide on endothelial pHi was examined. Hydrogen peroxide (100 micromol/L for 10 minutes) decreased ...

journal_title：Circulation research

authors： Hu Q,Xia Y,Corda S,Zweier JL,Ziegelstein RC

更新日期：1998-09-21 00:00:00

abstract：:Proteases of the plasminogen activator (PA) and matrix metalloproteinase (MMP) system play an important role in smooth muscle cell (SMC) migration and neointima formation after vascular injury. Inhibition of either PAs or MMPs has previously been shown to result in decreased neointima formation in vivo. To inhibit bot...

journal_title：Circulation research

authors： Lamfers ML,Grimbergen JM,Aalders MC,Havenga MJ,de Vries MR,Huisman LG,van Hinsbergh VW,Quax PH

更新日期：2002-11-15 00:00:00

abstract：:Whole-cell Ca2+ channel currents were recorded from isolated single canine Purkinje and ventricular cells to determine whether there were multiple types of Ca2+ channels in these two cell types, as in many other excitable tissues. The experimental conditions were such that currents other than Ca2+ channel currents wer...

journal_title：Circulation research

authors： Tseng GN,Boyden PA

更新日期：1989-12-01 00:00:00

abstract：:The average lifespan of humans is increasing, and with it the percentage of people entering the 65 and older age group is growing rapidly and will continue to do so in the next 20 years. Within this age group, cardiovascular disease will remain the leading cause of death, and the cost associated with treatment will co...

journal_title：Circulation research

authors： North BJ,Sinclair DA

更新日期：2012-04-13 00:00:00

abstract：:Understanding relationships between heart failure and arrhythmias, important causes of suffering and sudden death, remains an unmet goal for biomedical researchers and physicians. Evidence assembled over the past decade supports a view that activation of the multifunctional Ca(2+) and calmodulin-dependent protein kina...

journal_title：Circulation research

authors： Swaminathan PD,Purohit A,Hund TJ,Anderson ME

更新日期：2012-06-08 00:00:00

abstract：:The transcription factor nuclear factor-kappaB (NF-kappaB) plays a pivotal role in the coordinated transactivation of cytokine and adhesion molecule genes involved in endothelial activation. Although recent reports have documented the contribution of NF-kappaB to apoptosis, it is still controversial. Especially, the r...

journal_title：Circulation research

authors： Matsushita H,Morishita R,Nata T,Aoki M,Nakagami H,Taniyama Y,Yamamoto K,Higaki J,Yasufumi K,Ogihara T

更新日期：2000-05-12 00:00:00

abstract：RATIONALE:Chronic elevation of 3'-5'-cyclic adenosine monophosphate (cAMP) levels has been associated with cardiac remodeling and cardiac hypertrophy. However, enhancement of particular aspects of cAMP/protein kinase A signaling seems to be beneficial for the failing heart. cAMP is a pleiotropic second messenger with t...

journal_title：Circulation research

authors： Zoccarato A,Surdo NC,Aronsen JM,Fields LA,Mancuso L,Dodoni G,Stangherlin A,Livie C,Jiang H,Sin YY,Gesellchen F,Terrin A,Baillie GS,Nicklin SA,Graham D,Szabo-Fresnais N,Krall J,Vandeput F,Movsesian M,Furlan L,Corse

更新日期：2015-09-25 00:00:00

abstract：:Despite intense interest in understanding the differentiation of vascular smooth muscle, very little is known about the cellular and molecular mechanisms that control differentiation of this cell type. Progress in this field has been hampered by the lack of an inducible in vitro system for study of the early steps of ...

journal_title：Circulation research

authors： Blank RS,Swartz EA,Thompson MM,Olson EN,Owens GK

更新日期：1995-05-01 00:00:00

abstract：:The sphingolipid metabolites, sphingosine (SPH), SPH 1-phosphate (S1P), and sphingosylphosphorylcholine (SPC), can act as intracellular as well as extracellular signaling molecules. These compounds have been implicated in the regulation of cell growth, differentiation, and programmed cell death in nonmyocytes, but the...

journal_title：Circulation research

authors： Sekiguchi K,Yokoyama T,Kurabayashi M,Okajima F,Nagai R

更新日期：1999-11-26 00:00:00

abstract：:Hearts from rabbits with 8-16 weeks of alloxan-diabetes were compared with hearts from normal rabbits to determine whether diabetic myocardium is more sensitive to ischemic injury. In isolated buffer-perfused hearts, left ventricular developed pressure, diastolic pressure, time to peak pressure (TTPP), time to half-ma...

journal_title：Circulation research

authors： Vogel WM,Apstein CS

更新日期：1988-05-01 00:00:00

abstract：:The remodeling of ventricular gap junctions, as defined by changes in size, distribution, or function, is a prominent feature of diseased myocardium. However, the regulation of assembly and maintenance of gap junctions remains poorly understood. To investigate N-cadherin function in the adult myocardium, we used a flo...

journal_title：Circulation research

authors： Li J,Patel VV,Kostetskii I,Xiong Y,Chu AF,Jacobson JT,Yu C,Morley GE,Molkentin JD,Radice GL

更新日期：2005-09-02 00:00:00

abstract：:We measured pressure-volume curves in nine excised dog ventricles and stress-strain curves in two to five muscle specimens from each ventricle to verify a derived formula that relates muscle stiffness to the ventricular pressure-volume curve. The assumptions underlying this formula are: (1) the ventricle is a uniform ...

journal_title：Circulation research

authors： Glantz SA,Kernoff RS

更新日期：1975-12-01 00:00:00

abstract：:Increasing evidence suggests that endogenous NO inhibits sympathetic outflow in anesthetized animals. However, in a recent study from this laboratory, we were unable to find any evidence of increased renal sympathetic nerve activity (RSNA) in response to blockade of NO synthesis in conscious rabbits. Because angiotens...

journal_title：Circulation research

authors： Liu JL,Murakami H,Zucker IH

更新日期：1998-03-09 00:00:00