Abstract:
AIMS:Cholesteryl ester transfer protein (CETP) has a well-established role in lipoprotein metabolism, but the effect of its overexpression or inhibition on the efficiency of reverse cholesterol transport (RCT) is unclear. METHODS AND RESULTS:Neither overexpression of CETP nor treatment with CETP inhibitor Torcetrapib of RAW 264.7 macrophages or HepG2 hepatocytes affected cholesterol efflux in vitro. Overexpression of CETP or treatment with Torcetrapib, respectively, stimulated or inhibited HDL cholesteryl ester uptake by HepG2 but not by RAW 264.7 cells. When RAW 264.7 cells transfected with CETP or ATP binding cassette transporter A1 (ABCA1) were injected intraperitoneally into mice, cholesterol egress from macrophages was elevated for ABCA1- but not for CETP-transfected macrophages. Systemic expression of CETP in mice by adenoviral infection stimulated egress of cholesterol to plasma and liver without affecting HDL levels. Treatment with Torcetrapib did not affect appearance of macrophage cholesterol in plasma and liver, but inhibited its excretion into feces. Treatment of hamsters with Torcetrapib led to elevation of HDL cholesterol, an increase in the capacity of plasma to support cholesterol efflux, and increased egress of cholesterol from macrophages to plasma and feces in vivo. CONCLUSION:Both increased (mice study) and decreased (hamster study) CETP activity could result in enhanced RCT.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Tchoua U,D'Souza W,Mukhamedova N,Blum D,Niesor E,Mizrahi J,Maugeais C,Sviridov Ddoi
10.1093/cvr/cvm087subject
Has Abstractpub_date
2008-03-01 00:00:00pages
732-9issue
4eissn
0008-6363issn
1755-3245pii
cvm087journal_volume
77pub_type
杂志文章abstract::Chemokines, originally discovered as mediators of directional migration of immune cells to sites of inflammation and injury, have a function beyond their role in leukocyte chemotaxis. Indeed, they participate in organ development, angiogenesis, tumourigenesis and, more importantly, in the immune response. The chemokin...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvn029
更新日期:2008-05-01 00:00:00
abstract:AIMS:Processes in the development of atherosclerotic lesions can lead to plaque rupture or erosion, which can in turn elicit myocardial infarction or ischaemic stroke. The aims of this study were to determine whether Toll-like receptor 7 (TLR7) gene expression levels influence patient outcome and to explore the mechani...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvw231
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVE:The aim of this study is to investigate the idea that altered fibroblast contractile activity is involved in the pathogenesis of hypertensive heart disease (HHD). METHODS:Cell area and contraction are quantified using the traction force microscopy technique for cardiac fibroblasts isolated from both normoten...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2003.09.021
更新日期:2003-12-01 00:00:00
abstract:OBJECTIVE:The aims of the study were (1) to elucidate the effects of raised oxygen tension on the response of the ductus arteriosus to a range of vasodilators; and (2) to establish the effect, if any, of cyclo-oxygenase inhibition on the interaction between oxygen and prostaglandin (PG)E2. METHODS:Rings of ductus arte...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/27.12.2205
更新日期:1993-12-01 00:00:00
abstract:Aims:MicroRNAs (miRNAs) have been implicated in the pathogenesis of pulmonary hypertension (PH), a multifactorial and progressive condition associated with an increased afterload of the right ventricle leading to heart failure and death. The main aim of this study was to correlate the levels of miR-424(322) with the se...
journal_title:Cardiovascular research
pub_type: 杂志文章,多中心研究
doi:10.1093/cvr/cvx187
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVES:Coronary microvascular endothelial cells (CMVEs) can modulate the contractile performance of the adjacent myocardium by the release of agents such as nitric oxide (NO). Most previous studies using CMVEs have been done in situ, in the intact organ. We set out to study possible differences in NO synthase (NOS)...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00336-8
更新日期:1999-06-01 00:00:00
abstract:OBJECTIVE:Polymorphic ventricular tachycardias (PVT) occur spontaneously in canine hearts under the combination of D-sotalol (S), bradycardia and phenylephrine (PE). We investigated the hypotheses that: (1) the activation patterns of the initial PVT beats would be consistent with an origin in the ventricular conduction...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00036-4
更新日期:1998-06-01 00:00:00
abstract:AIMS:It is well established that leukotrienes (LTs), products of the 5-lipoxygenase (5-LO) pathway, participate in inflammatory tissue reactions and immune responses. In the present study, the impact of the 5-LO pathway on vasculogenesis of mouse embryonic stem (ES) cells was investigated. METHODS AND RESULTS:Immunohi...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvp385
更新日期:2010-04-01 00:00:00
abstract:STUDY OBJECTIVE:Compensatory mechanisms of the left ventricle for volume overloading caused by acute aortic regurgitation and associated changes in physiological properties of the aorta were studied in rabbits. DESIGN:Aortic regurgitation was produced by aortic valve perforation, and haemodynamic measurements were per...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/25.6.463
更新日期:1991-06-01 00:00:00
abstract::Angiotensin II (AII) plays a critical role in cardiac remodeling. This peptide promotes cardiac myocyte hypertrophy and cardiac fibroblast interstitial fibrotic changes associated with left ventricular hypertrophy, post myocardial infarction remodeling and congestive heart failure. AII mediates cardiac myocyte hypertr...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(00)00044-4
更新日期:2000-05-01 00:00:00
abstract:AIM:Age and injury cause structural and functional changes in coronary artery smooth muscle cells (caSMCs) that influence the pathogenesis of coronary artery disease. Although paracrine signalling is widely believed to drive phenotypic changes in caSMCs, here we show that developmental origin within the fetal epicardiu...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvv167
更新日期:2015-07-15 00:00:00
abstract:OBJECTIVE:It has been shown that cGMP content is reduced in post-ischemic myocardium, and that stimulation of cGMP synthesis prevents cardiomyocyte hypercontracture and cell death in vitro. This study was aimed at determining whether administration of the natriuretic peptide urodilatin (URO) at the time of reperfusion ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(01)00242-5
更新日期:2001-08-15 00:00:00
abstract:OBJECTIVE:Inducible costimulator (ICOS) is a member of the CD28 family. Although inflammation is an essential pathological feature of myocarditis, the role of ICOS in myocarditis remains unclear. METHODS AND RESULTS:Lewis rats were immunized on day 0 with purified porcine cardiac myosin to establish experimental autoi...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(03)00334-1
更新日期:2003-07-01 00:00:00
abstract:AIMS:Recent immunohistochemical studies observed the loss of plakoglobin (PG) from the intercalated disc (ID) as a hallmark of arrhythmogenic right ventricular cardiomyopathy (ARVC), suggesting a final common pathway for this disease. However, the underlying molecular processes are poorly understood. METHODS AND RESUL...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvq353
更新日期:2011-04-01 00:00:00
abstract::The effect on the microcirculation of long term administration of the alpha 1 blocker prazosin, which increases peripheral blood flow, was studied in skeletal muscles with differing metabolic profiles. Prazosin (50 mg.litre-1), given ad libitum for 5 weeks in the drinking water, resulted in an increase in capillarity ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/23.11.913
更新日期:1989-11-01 00:00:00
abstract::The role of the mitochondrial ATP-sensitive potassium channel (mK(ATP)) in ischemic preconditioning and cardioprotection is reviewed. A great deal of accumulated evidence implicatese opening of this channel as an important step in the anti-infarct effect of ischemic preconditioning. Recent studies, however, reveal tha...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(02)00439-x
更新日期:2002-08-15 00:00:00
abstract:OBJECTIVE:Lipoprotein lipase (LPL) mediated hydrolysis of circulating triglyceride (TG)-rich lipoproteins provides the heart with fatty acids. The present study was designed to investigate the influence of circulating TG and their lipolysis in facilitating translocation of LPL from the underlying cardiomyocyte cell sur...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(03)00469-3
更新日期:2003-09-01 00:00:00
abstract:AIMS:Alterations in cardiac acid-base balance can produce profound impact on excitation-contraction coupling and precipitate cardiac dysfunction and arrhythmias. A member of the solute carrier (SLC) family, Slc26a6, has been shown to be a chloride-hydroxyl exchanger and the predominant chloride-bicarbonate exchanger in...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvt195
更新日期:2013-12-01 00:00:00
abstract:OBJECTIVE:Cytokine induction of intercellular adhesion molecule-1 (ICAM-1) on cardiac myocytes may be a critical step in cardiac inflammation associated with acute myocardial infarction and myocarditis. The aim of this study was to investigate the involvement of monocyte chemoattractant protein-1 (MCP-1), a homologue o...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/28.8.1258
更新日期:1994-08-01 00:00:00
abstract:AIMS:G-protein-coupled receptors (GPCRs) modulate vascular tone, at least in part, via matrix metalloproteinase (MMP) transactivation of the epidermal growth factor receptor (EGFR). We previously have identified novel signalling pathways downstream of the EGFR suggestive of mitogen-activated protein kinase and mitochon...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvp230
更新日期:2009-12-01 00:00:00
abstract::An isolated working rat heart preparation was used to characterise the temperature-dependency of the anti-ischaemic properties of nifedipine. In this study hearts were subjected to pre-ischaemic infusion with the St Thomas' cardioplegic solution with or without added nifedipine (0.075 mumol X litre-1). Hearts were the...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/19.2.95
更新日期:1985-02-01 00:00:00
abstract:AIMS:Hydrogen sulphide (H(2)S) is an endogenously generated gaseous transmitter that has recently been suggested to regulate cardiovascular functions. To date, there is no direct evidence for a potential role of H(2)S in regulating calcium channels in the heart. The present study aims to examine the hypothesis that H(2...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn140
更新日期:2008-09-01 00:00:00
abstract::Effects of sublingual glyceryl trinitrate (GTN) were studied in ten patients without heart failure during diagnostic cardiac catheterisation following angiography. GTN caused substantial reduction in peak left ventricular and aortic pressure (19 mmHg) with lesser reduction in mean aortic pressure (9 mmHg) and no chang...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/20.2.153
更新日期:1986-02-01 00:00:00
abstract:AIMS:The effects of serelaxin, a recombinant form of human relaxin-2 peptide, on vascular function in the coronary microvascular and systemic macrovascular circulation remain largely unknown. This mechanistic, clinical study assessed the effects of serelaxin on myocardial perfusion, aortic stiffness, and safety in pati...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvz345
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:Mechanoelectric Feedback, a mechanical intervention inducing an electrical change, is gaining credence as a cause of cardiac arrhythmia in the clinical situation. However, the precise mechanism is unknown. To elucidate this we investigated mechanical and chemical modulation of stretch-induced premature ventri...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(97)00314-3
更新日期:1998-04-01 00:00:00
abstract:AIMS:Vascular endothelial growth factors (VEGFs) and their receptors (VEGF-Rs) are among the most powerful factors regulating vascular growth. However, it has remained unknown whether stimulation of VEGF-R1, VEGF-R2 or both of the receptors produces the best angiogenic responses in myocardium. The aim of this study was...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvp382
更新日期:2010-04-01 00:00:00
abstract::Numerous epidemiological studies documented an inverse relationship between plasma high-density lipoprotein (HDL) cholesterol levels and the extent of atherosclerotic disease. However, clinical interventions targeting HDL cholesterol failed to show clinical benefits with respect to cardiovascular risk reduction, sugge...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvu136
更新日期:2014-08-01 00:00:00
abstract:STUDY OBJECTIVE:The aim was to evaluate the protective effect of verapamil during myocardial ischaemia and reperfusion. DESIGN:In vivo phosphorus-31 (31P) magnetic resonance spectroscopy was performed on rats pretreated with verapamil (mg.kg-1 intraperitoneal) and controls during a 45 min left coronary artery occlusio...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/25.2.101
更新日期:1991-02-01 00:00:00
abstract:AIMS:Peripheral chemoreflex sensitivity is potentiated in both clinical and experimental chronic heart failure (CHF). NADPH oxidase-derived superoxide mediates angiotensin II (Ang II)-enhanced carotid body (CB) chemoreceptor sensitivity in CHF rabbits, and tempol, the superoxide dismutase (SOD) mimetic, inhibits this A...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn350
更新日期:2009-03-01 00:00:00
abstract::To investigate cardiovascular changes in experimental acromegaly, a growth hormone-secreting tumour (MtT-W-15) was implanted in adult female rats. Somatic and tumour growth occurred steadily during the 8 week study period, as did an increase in serum growth hormone titre. Weight of left ventricle and right ventricle i...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/19.5.270
更新日期:1985-05-01 00:00:00