Left ventricular and myocardial function in mice expressing constitutively pseudophosphorylated cardiac troponin I.

abstract：:The adenosine analogue phenylisopropyladenosine decreased the basal and isoproterenol-stimulated contractile state of isolated rat left atria. The ED50 levels for both responses were similar, suggesting that direct and antiadrenergic effects may be mediated by the same receptor. Phenylisopropyladenosine decreased the ...

journal_title：Circulation research

authors： Linden J,Hollen CE,Patel A

更新日期：1985-05-01 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：:Voltage-gated L-type Ca(2+) channels (LCCs) provide Ca(2+) ingress into cardiac myocytes and play a key role in intracellular Ca(2+) homeostasis and excitation-contraction coupling. We investigated the effects of a constitutive increase of LCC density on Ca(2+) signaling in ventricular myocytes from 4-month-old transg...

journal_title：Circulation research

authors： Song LS,Guia A,Muth JN,Rubio M,Wang SQ,Xiao RP,Josephson IR,Lakatta EG,Schwartz A,Cheng H

更新日期：2002-02-08 00:00:00

abstract：RATIONALE:Nuclear factor of activated T-cells (NFAT) is importantly implicated in pathological cardiac remodeling and vascular lesion formation. NFAT functionality is mainly regulated by calcineurin, a Ca(2+)-dependent multi-effector phosphatase. Calcineurin inhibitors such as cyclosporine A (CsA) were shown to be effe...

journal_title：Circulation research

authors： Yu H,Bot I,Sliedregt K,Xu X,Bot M,van Heiningen SH,van der Marel GA,Bennett MR,Overkleeft H,van Berkel TJ,Biessen EA

更新日期：2012-01-20 00:00:00

abstract：RATIONALE:Although PSA (prostate-specific antigen)-a tumor marker for prostate cancer-has been reported to be associated with cardiovascular disease (CVD) risk factors, studies on the association of PSA with subclinical and clinical CVD remain limited. OBJECTIVE:We examined the association of total serum PSA within th...

journal_title：Circulation research

authors： Chang Y,Kim JH,Noh JW,Cho YS,Park HJ,Joo KJ,Ryu S

更新日期：2019-05-10 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：:The precise, temporal order of gene expression during development is critical to ensure proper lineage commitment, cell fate determination, and ultimately, organogenesis. Epigenetic regulation of chromatin structure is fundamental to the activation or repression of genes during embryonic development. In recent years, ...

journal_title：Circulation research

authors： Boland MJ,Nazor KL,Loring JF

更新日期：2014-07-07 00:00:00

abstract：RATIONALE:Shear stress (SS) has an established role in atherosclerotic plaque localization, but how it exerts its protective effect is not fully understood. OBJECTIVE:To test the hypothesis that SS may downregulate angiotensin type 1 receptors (AT(1)Rs). Angiotensin II has been shown to be proinflammatory and to promo...

journal_title：Circulation research

authors： Ramkhelawon B,Vilar J,Rivas D,Mees B,de Crom R,Tedgui A,Lehoux S

更新日期：2009-10-23 00:00:00

abstract：:Urea transporters have been cloned from kidney medulla (UT-A) and erythrocytes (UT-B). We determined whether UT-A proteins could be detected in heart and whether their abundance was altered by uremia or hypertension or in human heart failure. In normal rat heart, bands were detected at 56, 51, and 39 kDa. In uremic ra...

journal_title：Circulation research

authors： Duchesne R,Klein JD,Velotta JB,Doran JJ,Rouillard P,Roberts BR,McDonough AA,Sands JM

更新日期：2001-07-20 00:00:00

abstract：:The global prevalence of overweight and obesity has risen substantially over the past 4 decades and is accompanied by an increasing burden of cardiovascular risk factors such as hypertension. Metabolic surgery is the most effective method to treat obesity and may further improve associated conditions. Although most re...

journal_title：Circulation research

authors： Pareek M,Bhatt DL,Schiavon CA,Schauer PR

更新日期：2019-03-29 00:00:00

abstract：:Smooth muscle expresses the Ialpha and the Ibeta isoforms of cGMP-dependent protein kinase I (cGKI). Inactivation of the murine cGKI gene prkg1 leads to multiple phenotypes and premature death at approximately 6 weeks. We reconstituted mice with the cGKIalpha or -Ibeta isozyme to test which isozyme was needed to suppo...

journal_title：Circulation research

authors： Weber S,Bernhard D,Lukowski R,Weinmeister P,Wörner R,Wegener JW,Valtcheva N,Feil S,Schlossmann J,Hofmann F,Feil R

更新日期：2007-11-26 00:00:00

abstract：:It has been proposed that lipopolysaccharide (LPS) bound to the 60-kD LPS binding protein (LBP) forms an LPS/LBP complex that, in turn, binds to the CD14 receptor on monocytes/macrophages and stimulates the release of cytokines. We examined the role of LBP and CD14 in tumor necrosis factor-alpha (TNF-alpha) production...

journal_title：Circulation research

authors： Ishii Y,Wang Y,Haziot A,del Vecchio PJ,Goyert SM,Malik AB

更新日期：1993-07-01 00:00:00

abstract：:Proliferation of vascular smooth muscle cells (VSMC) is a primary cause of vascular disorders and is associated with major alterations in Ca2+ handling supported by loss of the sarco/endoplasmic reticulum calcium ATPase, SERCA2a. To determine the importance of SERCA2a in neointima formation, we have prevented loss of ...

journal_title：Circulation research

authors： Lipskaia L,del Monte F,Capiod T,Yacoubi S,Hadri L,Hours M,Hajjar RJ,Lompré AM

更新日期：2005-09-02 00:00:00

abstract：:MicroRNAs act as negative regulators of gene expression by inhibiting the translation or promoting the degradation of target mRNAs. Because individual microRNAs often regulate the expression of multiple target genes with related functions, modulating the expression of a single microRNA can, in principle, influence an ...

journal_title：Circulation research

authors： van Rooij E,Marshall WS,Olson EN

更新日期：2008-10-24 00:00:00

abstract：:The myocardium of the failing heart undergoes a number of structural alterations, most notably hypertrophy of cardiac myocytes and an increase in extracellular matrix proteins, often seen as primary fibrosis. Connective tissue growth factor (CTGF) is a key molecule in the process of fibrosis and therefore seems an att...

journal_title：Circulation research

authors： Duisters RF,Tijsen AJ,Schroen B,Leenders JJ,Lentink V,van der Made I,Herias V,van Leeuwen RE,Schellings MW,Barenbrug P,Maessen JG,Heymans S,Pinto YM,Creemers EE

更新日期：2009-01-30 00:00:00

abstract：:Chronic inflammation in white adipose tissue (WAT) is positively associated with obesity, insulin resistance (IR) and the development of type 2 diabetes. The proinflammatory cytokine MIF (macrophage migration inhibitory factor) is an essential, upstream component of the inflammatory cascade. This study examines whethe...

journal_title：Circulation research

authors： Verschuren L,Kooistra T,Bernhagen J,Voshol PJ,Ouwens DM,van Erk M,de Vries-van der Weij J,Leng L,van Bockel JH,van Dijk KW,Fingerle-Rowson G,Bucala R,Kleemann R

更新日期：2009-07-02 00:00:00

abstract：:In pentobrabital-anesthetized open chest dogs, myocardial adenosine content is elevated by 5 or 15 seconds of left coronary artery occlusion and falls exponentially to control levels during reactive hyperemia. The rate constants for adenosine dissipation are (mean +/- SEM): -0.08 +/- 0.01 and -0.034 +/- 0.007 sec-1 af...

journal_title：Circulation research

authors： Olsson RA,Snow JA,Gentry MK

更新日期：1978-03-01 00:00:00

abstract：:Triadin 1 (TRD) is an integral membrane protein that associates with the ryanodine receptor (RyR2), calsequestrin (CASQ2) and junctin to form a macromolecular Ca signaling complex in the cardiac junctional sarcoplasmic reticulum (SR). To define the functional role of TRD, we examined the effects of adenoviral-mediated...

journal_title：Circulation research

authors： Terentyev D,Cala SE,Houle TD,Viatchenko-Karpinski S,Gyorke I,Terentyeva R,Williams SC,Gyorke S

更新日期：2005-04-01 00:00:00

abstract：:Bone morphogenetic proteins (BMPs) play important roles in cardiovascular development. However, how BMP-signaling pathways regulate cardiac gene expression is less clear. We have previously identified myocardin as a cardiac and smooth muscle-specific transcriptional cofactor for serum response factor (SRF). Myocardin ...

journal_title：Circulation research

authors： Callis TE,Cao D,Wang DZ

更新日期：2005-11-11 00:00:00

abstract：RATIONALE:Treatment efficacy for diabetes mellitus is largely determined by assessment of HbA1c (glycated hemoglobin A1c) levels, which poorly reflects direct glucose variation. People with prediabetes and diabetes mellitus spend >50% of their time outside the optimal glucose range. These glucose variations, termed tra...

journal_title：Circulation research

authors： Flynn MC,Kraakman MJ,Tikellis C,Lee MKS,Hanssen NMJ,Kammoun HL,Pickering RJ,Dragoljevic D,Al-Sharea A,Barrett TJ,Hortle F,Byrne FL,Olzomer E,McCarthy DA,Schalkwijk CG,Forbes JM,Hoehn K,Makowski L,Lancaster GI,El-Ost

更新日期：2020-09-11 00:00:00

abstract：:High affinity binding sites of angiotensin II (A II) have been characterized in rabbit renomedullary interstitial cells in tissue culture. Binding was rapid, specific, and saturable. Scatchard analysis of steady state saturation binding data at 22 degrees C indicated a single binding site with an equilibrium dissociat...

journal_title：Circulation research

authors： Brown CA,Zusman RM,Haber E

更新日期：1980-06-01 00:00:00

abstract：:Given the essential role played by gap junctions in the coordination of cardiac muscle contraction, it is plausible that down-regulation of gap junctional conduction is in part responsible for the contractile dysfunction observed in hypertrophied and failing hearts. In the present study, we analyzed the expression and...

journal_title：Circulation research

authors： Toyofuku T,Yabuki M,Otsu K,Kuzuya T,Tada M,Hori M

更新日期：1999-10-15 00:00:00

abstract：:Originally identified as moderate biological modifiers, microRNAs have recently emerged as powerful regulators of diverse cellular processes with especially important roles in disease and tissue remodeling. The rapid pace of studies on microRNA regulation and function necessitates the development of suitable technique...

journal_title：Circulation research

authors： van Rooij E

更新日期：2011-01-21 00:00:00

abstract：RATIONALE:Transmural dispersion of repolarization has been shown to play a role in the genesis of ventricular tachycardia and fibrillation in different animal models of heart failure (HF). Heterogeneous changes of repolarization within the midmyocardial population of ventricular cells have been considered an important ...

journal_title：Circulation research

authors： Glukhov AV,Fedorov VV,Lou Q,Ravikumar VK,Kalish PW,Schuessler RB,Moazami N,Efimov IR

更新日期：2010-03-19 00:00:00

abstract：:Endothelial cells release nitric oxide (NO) more potently in response to increased shear stress than to agonists which elevate intracellular free calcium concentration ([Ca2+]i). To determine mechanistic differences in the regulation of endothelial constitutive NO synthase (ecNOS), we measured NO production by bovine ...

journal_title：Circulation research

authors： Corson MA,James NL,Latta SE,Nerem RM,Berk BC,Harrison DG

更新日期：1996-11-01 00:00:00

abstract：:Mechanisms of denervation supersensitivity to sympathomimetic amines were studied in conscious animals. Norepinephrine, 0.1 micrograms/kg, increased left ventricular dP/dt significantly more (4208 +/- 828 mm Hg/sec) in dogs with cardiac denervation than in intact dogs (1029 +/- 280 mm Hg/sec), P less than 0.01, wherea...

journal_title：Circulation research

authors： Vatner DE,Lavallee M,Amano J,Finizola A,Homcy CJ,Vatner SF

更新日期：1985-07-01 00:00:00

abstract：:Propagation in cardiac muscle is faster in the longitudinal than in the transverse axis of the cells. Yet, as a result of the larger upstroke velocity of action potentials propagating transversely, it has been suggested that longitudinal propagation is more vulnerable to block. To study the relation between conduction...

journal_title：Circulation research

authors： Delmar M,Michaels DC,Johnson T,Jalife J

更新日期：1987-05-01 00:00:00

abstract：:The relationship of P-wave polarity and morphology in leads II, III, and aVF to the sequence of atrial activation was studied in the canine heart when the atria were paced from the region of the sinus node or the posterior-inferior left atrium and when retrograde activation of the atria occurred with right ventricular...

journal_title：Circulation research

authors： Waldo AL,Vitikainen KJ,Hoffman BF

更新日期：1975-08-01 00:00:00

abstract：RATIONALE:The low-density lipoprotein (LDL) receptor (LDLR) is a central determinant of circulating LDL-cholesterol and as such subject to tight regulation. Recent studies and genetic evidence implicate the inducible degrader of the LDLR (IDOL) as a regulator of LDLR abundance and of circulating levels of LDL-cholester...

journal_title：Circulation research

authors： Nelson JK,Sorrentino V,Avagliano Trezza R,Heride C,Urbe S,Distel B,Zelcer N

更新日期：2016-02-05 00:00:00

abstract：RATIONALE:Voltage-gated sodium channels initiate action potentials in excitable tissues. Mice in which Scn5A (the predominant sodium channel gene in heart) has been knocked out die early in development with cardiac malformations by mechanisms which have yet to be determined. OBJECTIVE:Here we addressed this question b...

journal_title：Circulation research

authors： Chopra SS,Stroud DM,Watanabe H,Bennett JS,Burns CG,Wells KS,Yang T,Zhong TP,Roden DM

更新日期：2010-04-30 00:00:00