Abstract:
BACKGROUND AND OBJECTIVES:Since statins and angiotensin receptor blockers are a frequently prescribed combination in patients with atherosclerotic cardiovascular diseases, we tested the interactive effects of simvastatin and losartan on atherosclerosis in apolipoprotein E (apoE)(-/-) mice. MATERIALS AND METHODS:Apolipoprotein E(-/-) mice were fed a high-fat, high-cholesterol (HFHC) diet for 12 weeks, with and without simvastatin (40 mg/kg) and/or losartan (20 mg/kg). The mice were divided into 5 groups and were fed as follows: regular chow (control diet, n=5), HFHC diet (n=6), HFHC diet with losartan (n=6), HFHC diet with simvastatin (n=6), and HFHC diet with both losartan and simvastatin (n=6). RESULTS:Losartan treatment in apoE(-/-) mice significantly decreased atherosclerotic lesion areas in whole aortic strips stained with Oil Red O. The plaque area measured at the aortic sinus level was reduced significantly by 17% (HFHC; 346830.9±52915.8 µm(2) vs. HFHC plus losartan; 255965.3±74057.7 µm(2), p<0.05) in the losartan-treated group. Simvastatin and simvastatin plus losartan treatments reduced macrophage infiltration into lesions by 33% (HFHC; 183575.6±43211.2 µm(2) vs. HFHC plus simvastatin; 120556.0±39282.8 µm(2), p<0.05) and 44% (HFHC; 183575.6±43211.2 µm(2) vs. HFHC plus simvastatin and losartan; 103229.0±8473.3 µm(2), p<0.001, respectively). In mice fed the HFHC diet alone, the smooth muscle cell layer in the aortic media was almost undetectable. In mice co-treated with losartan and simvastatin, the smooth muscle layer was more than 60% preserved (p<0.05). Given alone, losartan showed a slightly stronger effect than simvastatin; however, treatment with losartan plus simvastatin induced a greater inhibitory effect on atherosclerosis than either drug given alone. Serum lipid profiles did not differ significantly among the groups. CONCLUSION:Losartan displayed anti-atherosclerotic effects in apoE(-/-) mice that were equivalent to or greater than the effects of simvastatin. Combined treatment with these drugs had greater effect than either drug alone.
journal_name
Korean Circ Jjournal_title
Korean circulation journalauthors
Lee BS,Choi JY,Kim JY,Han SH,Park JEdoi
10.4070/kcj.2012.42.8.543subject
Has Abstractpub_date
2012-08-01 00:00:00pages
543-50issue
8eissn
1738-5520issn
1738-5555journal_volume
42pub_type
杂志文章abstract::QT prolongation is a serious adverse drug effect, which is associated with an increased risk of Torsade de pointes and sudden death. Many drugs, including both cardiac and non-cardiac drugs, have been reported to cause prolongation of QT interval. Although meperidine has not been considered proarrhythmic, we present a...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.6.342
更新日期:2011-06-01 00:00:00
abstract::Without significant coronary artery stenosis, ischemic electrocardiographic change including ST segment elevation, segmental wall motion abnormality and elevated serum cardiac-specific markers (creatine kinase-MB, Troponin-T) may develop after central nervous system injuries such as subarachnoid, intracranial or subdu...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.3.216
更新日期:2012-03-01 00:00:00
abstract::Congestive heart failure is a major cause of morbidity and mortality as well as a major health care cost in the developed world. Despite the introduction of highly effective heart failure medical therapies and simple devices such as cardiac resynchronization therapy that reduce mortality, improve cardiac function and ...
journal_title:Korean circulation journal
pub_type: 杂志文章,评审
doi:10.4070/kcj.2019.0161
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Chronic impairment of β-adrenergic receptor signaling increases cardiac apoptosis, hypertrophy and fibrosis. The aim of this study was to investigate whether isoproterenol (ISO), an agonist of the adrenergic receptor, can enhance tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2016.46.1.93
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Carotid intima-media thickness (IMT) is associated with chronic inflammation, and C-reactive protein (CRP) level is elevated in patients with atrial fibrillation (AF). We investigated the impacts of CRP and AF on carotid atherosclerosis and ischemic stroke in patients with suspected ischemic c...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.12.796
更新日期:2013-12-01 00:00:00
abstract::Sarcoidosis is a multisystem granulomatous disorder of unknown etiology. The annual incidence of systemic sarcoidosis is estimated at 10-20 per 100,000 individuals. Owing to the recent advances in imaging modalities, cardiac sarcoidosis (CS) is diagnosed more frequently. The triad of CS includes conduction abnormality...
journal_title:Korean circulation journal
pub_type: 杂志文章,评审
doi:10.4070/kcj.2018.0432
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The drug-eluting balloon (DEB) catheter system was developed to treat restenosis. Furthermore, DEB angioplasty has been shown to reduce restenosis risk when compared to drug-eluting stents (DES) in patients with in-stent restenosis (ISR) or small vessel disease (SVD). In addition, DEB angiopla...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.12.705
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Bicaval heart transplantation (HTx) may promote parasympathetic reinnervation. However, the prevalence and timing of reinnervation have not been fully investigated. Heart rate variability (HRV) and direct vagal stimulation were used to evaluate the presence of parasympathetic reinnervation aft...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2016.46.2.197
更新日期:2016-03-01 00:00:00
abstract::Subintimal angioplasty is an effective method for the treatment of long superficial femoral artery (SFA) occlusions. One of the major limiting factors for the success of this procedure is the failure to re-enter the true lumen. The recently introduced luminal re-entry devices provide a high technical success rate, but...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2014.44.3.184
更新日期:2014-05-01 00:00:00
abstract::Revascularization of severe left main and multivessel coronary artery disease has been shown to improve survival in both stable ischemic heart disease and acute coronary syndrome. While revascularization with coronary artery bypass surgery for these disease entities carries class I recommendation in most current guide...
journal_title:Korean circulation journal
pub_type: 杂志文章,评审
doi:10.4070/kcj.2018.0078
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The plasma concentration of N-terminal pro-brain natriuretic peptide (NT-pro-BNP) is a st-rong prognostic indicator for patients with heart failure (HF) across all stages of the condition. Several clinical trials have de-monstrated convincingly that neurohormonal modulation on the renin angiot...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.2.61
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Aortic valve replacement (AVR) is the treatment of choice in severe symptomatic aortic stenosis (AS) patients. However, a substantial number of elderly patients refuse AVR and treated medically. We investigated their long-term prognosis. METHODS:From January 2005 to December 2016, we analyzed...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2018.0208
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Patients with acute myocardial infarction show varying degrees of collateral development. However, the relationships between angiogenic factors and degree of collaterals are not well known. SUBJECTS AND METHODS:Fifty-nine patients (mean age, 59±10 years) with ST-segment elevation myocardial i...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.7.464
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Dysregulation of histone deacetylase expression and enzymatic activity is associated with a number of diseases. It has been reported that protein levels of histone deacetylase (HDAC)1 and HDAC5 increase during human pulmonary hypertension, and that the enzymatic activity of HDAC6 is induced in...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2016.0266
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The comparison of long-term clinical effects between Sirolimus-eluting stent (SES) and Paclitaxel-eluting stents (PES) for treatment of acute myocardial infarction (AMI) remains unclear. Seeking to clarify this issue, we performed a retrospective analysis to evaluate four-year clinical outcome...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.4.266
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Pentraxin 3 (PTX3) was shown to be elevated in the acute phase of acute myocardial infarction (AMI) and to have prognostic significance in AMI patients. The aim of this study was to estimate whether the value of PTX3 could be used as a prognostic biomarker, with the global registry of acute co...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2010.40.8.370
更新日期:2010-08-01 00:00:00
abstract::A 77-year-old female patient underwent aortic valve replacement (AVR) with concomitant septal myectomy and tricuspid annuloplasty. Her symptoms did not improve after a successful operation. Echocardiogram demonstrated the presence of an iatrogenic ventricular septal defect (VSD). It was muscular in location and not th...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2014.44.1.45
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:We investigated the effect of the additional use of abciximab during percutaneous coronary intervention (PCI) on the level of procoagulant microparticles (MPs) in patients with ST-segment elevation myocardial infarction (STEMI) who had undergone primary PCI. SUBJECTS AND METHODS:In this study...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.9.600
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Although the use of heterogeneous overlapping drug-eluting stents (DES) is not uncommon in clinical practice, whether the implantation sequences of heterogeneous DES will influence the endothelialization or arterial responses differently remains unclear. MATERIALS AND METHODS:Twenty-one rabbi...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.6.397
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The aims of this study were to establish a reliable model of chronic mitral regurgitation (MR) in rats and verify the pathophysiological features of this model by evaluating cardiac function using serial echocardiography and a pressure-volume analysis. MATERIALS AND METHODS:MR was created in ...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.10.603
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Hypercholesterolemia is a key factor in the development of atherosclerosis. We sought to evaluate the relation between hypercholesterolemia and plaque composition in patients with coronary artery disease. SUBJECTS AND METHODS:Study subjects consisted of 323 patients (mean 61.5 years, 226 male...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.1.23
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The objective was to compare the rate of onset of diabetes mellitus (DM) in patients with atrial fibrillation (AF) as compared with atrial flutter (AFL). METHODS:The incidence of DM through the national cohort registry in 14,014 newly diagnosed AF and 14,014 newly diagnosed AFL was investigat...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2019.0367
更新日期:2020-06-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) with metastasis to the heart is uncommon. We report a rare case of left atrial metastasis of HCC which was resected palliatively as a live-saving procedure with the use of cardiopulmonary bypass. Despite chemoembolization, which was undertaken 11 times, cardiac metastasis occurred. Moreo...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.9.542
更新日期:2011-09-01 00:00:00
abstract::Cardiac magnetic resonance (CMR) imaging provides accurate anatomic information and advanced soft contrast, making it the reference standard for assessing cardiac volumes and systolic function. In this review, we summarize the recent advances in CMR sequences. New technical development has widened the use of CMR imagi...
journal_title:Korean circulation journal
pub_type: 杂志文章,评审
doi:10.4070/kcj.2018.0246
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Left ventricular (LV) remodeling is a heterogeneous process, involving both infarcted and non-infarcted zones, which affects wall thickness and chamber size, shape and function. SUBJECTS AND METHODS:A total of 758 consecutive patients (62.8±12.0 years, 539 males) with acute myocardial infarct...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.3.124
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Recently, Genoss drug-eluting stent (DES)™ stent comprising cobalt-chromium platform with an ultrathin strut thickness, sirolimus, and an abluminal biodegradable polymer was developed. Owing to the lack of substantial evidence for the safety and efficacy of this stent, we report 12-month resul...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2019.0258
更新日期:2020-04-01 00:00:00
abstract::A 29-year-old man was referred to the emergency department with a complaint of abdominal pain and dizziness. He had experienced two previous syncopal episodes. His family history revealed that his mother and his two uncles had received permanent pacemaker implantation. His initial heart rate was 49 beats per minute. T...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.5.276
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Increased vascular wall shear stress by elevated plasma viscosity significantly enhances the endothelial nitric oxide synthase (eNOS) activity during an acute isovolemic hemodilution. Also the modulation of plasma viscosity has effects on the cardiac function that were revealed if a left ventr...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2014.44.2.105
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:To assess the safety and efficacy of transcatheter closure of residual ductal flow after initial surgical ligation of the arterial duct. SUBJECTS AND METHODS:Between June 2005 and December 2009, transcatheter occlusion of residual postsurgical ductus arteriosus was performed in six children. ...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.11.654
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Hyaluronic acid (HA) is highly biocompatible with cells and the extracellular matrix. In contrast to degradation products of a synthetic polymer, degradation products of HA do not acidify the local environment. The aim of this study was to fabricate an HA-coated paclitaxel (PTX)-eluting stent ...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2016.0203
更新日期:2017-01-01 00:00:00