Abstract:
:Platelet aggregation is not only an essential part of hemostasis, but also initiates acute coronary syndrome or ischemic stroke. The precise understanding of the activation mechanism of platelet aggregation is fundamental for the development of more effective agents against platelet aggregation. Adenosine diphosphate, thrombin, and thromboxane A(2) activate platelet integrin αIIbβ3 through G protein-coupled receptors. G protein-mediated signaling pathways, which are initiated by G(q), G(12)/G(13) or G(i), include phospholipase C with calcium signaling, Rho signaling, protein kinase C and phosphatidylinositol 3-kinase. Rap1b, Ca(2+) and diacylglycerol-regulated guanine nucleotide exchange factor I, Rap1-GTP-interacting adaptor molecule, and Akt are important proteins involved in G protein-mediated activation of integrin αIIbβ3. Binding of talin-1 and kindlin-3 to cytoplasmic domains of β3-integrin triggers a conformational change in the extracellular domains that increases its affinity for ligands, such as fibrinogen or von Willebrand factor. Fibrinogens act as bridges between adjacent platelets to generate a platelet aggregate.
journal_name
Korean Circ Jjournal_title
Korean circulation journalauthors
Joo SJdoi
10.4070/kcj.2012.42.5.295subject
Has Abstractpub_date
2012-05-01 00:00:00pages
295-301issue
5eissn
1738-5520issn
1738-5555journal_volume
42pub_type
杂志文章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::The incidence of peri-stent graft infection (PGI) following thoracic endovascular aortic repair (TEVAR) is low, but the associated mortality rates are extremely high. The diagnosis of this complication can be difficult due to nonspecific symptoms. Here, we report a case of PGI combined with an aorto-esophageal fistula...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.5.366
更新日期:2012-05-01 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: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::Treatments of choice for cardiac implantable electronic device (CIED) infections are the removal of the entire CIED system, control of infection, and new device implantation. Occasionally, a complete CIED removal can not be performed for several reasons, such as very old age, severe comobidity, limited life expectancy...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2011.41.1.46
更新日期:2011-01-01 00:00:00
abstract::We report a case of a 19-year-old female with an elevated plasma B-type natriuretic peptide (BNP) level, but without evidence of heart failure (HF). She presented with non-specific chest pain and a high level of the B-type natriuretic peptide, despite having unremarkable findings on physical examination, laboratory an...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2010.40.3.141
更新日期:2010-03-01 00:00:00
abstract::Pathologic diagnosis of a cardiac mass is vital in determining the proper treatment modality. Open heart surgery or transesophageal echocardiography guided biopsy can be feasible methods to confirm the pathology. However, the former is highly invasive and both methods require general anesthesia. The introduction of in...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2015.45.2.165
更新日期:2015-03-01 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:There is a paucity of data regarding the benefit of clopidogrel monotherapy after dual antiplatelet therapy (DAPT) in patients treated with drug-eluting stents (DES). This study compared outcome between clopidogrel versus aspirin as monotherapy after DES for acute myocardial infarction (MI). ...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2019.0166
更新日期:2020-02-01 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:Over the past decades, transradial approach for percutaneous coronary intervention (PCI) has been increasingly adopted in clinical practice. Women represent a large population who will possibly benefit from PCI, but they are often under-represented in clinical studies. Therefore, the role of T...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2018.0040
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Implantation of cardiac implantable electronic devices (CIED), including permanent pacemakers (PM), implantable cardioverter-defibrillators (ICD), and cardiac resynchronization therapy (CRT) devices, has increased significantly over the past several years. However, limited data exists regardin...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2018.0444
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:It is thought that patients with diabetes mellitus (DM) have a poor prognosis after an acute myocardial infarction (AMI), but the effect of diabetes on the outcomes of hypertensive patients with AMIs has not been elucidated in the Korean population. The aim of this study was to investigate the...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2009.39.6.243
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The rigid coupling between the delivery wire and the right atrial disk has been occasionally encountered during transcatheter closure of atrial septal defect (ASD). Therefore the device frequently makes a perpendicular angle, and the leading edge of left atrial disk slips through the defect an...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2010.40.4.191
更新日期:2010-04-01 00:00:00
abstract::Herein, we present a case of a successful catheter ablation of ventricular tachycardia (VT) using a radial artery approach in a post-myocardial infarction patient, who had an implantable cardioverter-defibrillator and peripheral artery disease. Although the patient did not use antiarrhythmic drugs, the patient experie...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2012.42.9.632
更新日期:2012-09-01 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: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::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::A 34-year-old man, who had been treated with an endoscopic injection of a mixture of n-butyl-2-cyanoacrylate (Histoacryl) and Lipiodol for control of variceal bleeding 6 months previously, presented with an intracardiac mass in the right atrium (RA). Two-dimensional echocardiography revealed an intracardiac mass in th...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2010.40.9.468
更新日期:2010-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The aim of this study was to examine the histolopathogical effects among the biolimus, zotarolimus, and everolimus eluting stent (EES) in the porcine coronary restenosis model. SUBJECTS AND METHODS:Pigs were randomized into three groups in which the coronary arteries (15 pigs, 10 coronaries i...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.11.744
更新日期:2013-11-01 00:00:00
abstract::Although its use in daily practice is not common, optical coherence tomography (OCT) is a powerful research tool in invasive cardiology. This report describes a hazy angiography image after percutaneous coronary intervention that has been assessed using OCT. Based on the results of the OCT, the patient underwent an el...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.1.44
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The prognosis and natural history of bradycardia related to drugs such as beta-blockers and non-dihydropyridine calcium channel blockers are not well known. SUBJECTS AND METHODS:We retrospectively analyzed 38 consecutive patients (age 69+/-11, 21 women) with drug-related bradycardia (DRB) bet...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2009.39.9.367
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Clinical data for Korean patients with bicuspid aortic valve (BAV) that underwent aortic valve (AV) surgery are currently limited. METHODS:Data for 1,160 consecutive adult BAV patients who underwent AV surgery from 2000 to 2014 in 4 tertiary referral centers were retrospectively analyzed. A s...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2017.0124
更新日期:2018-01-01 00:00:00
abstract::We describe a case of chronic total occlusion of the right coronary artery ostium 5 months after a repeated Bentall procedure in a patient with Behçet's disease. In this patient, an antegrade approach to delivering the guidewire during percutaneous coronary intervention was not successful. Coronary angiography reveale...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2013.43.4.277
更新日期:2013-04-01 00:00:00
abstract::Atrial fibrillation (AF) is the most common arrhythmia and is associated with increased cardiovascular morbidity and mortality. The anti-arrhythmic effect of statins on AF prevention appears to be highly significant in most clinical studies. However, some discrepancies do exist among different clinical studies. Differ...
journal_title:Korean circulation journal
pub_type: 杂志文章,评审
doi:10.4070/kcj.2014.44.4.205
更新日期:2014-07-01 00:00:00
abstract::Total absence of superior vena cava (SVC) is a very rare anomaly, and the patient usually suffers from SVC syndrome or conduction disturbances. We report an asymptomatic 27 year-old male, with complete absence of SVC. Transthoracic echocardiography and computed tomography demonstrated the absence of SVC and other cong...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2016.46.5.743
更新日期:2016-09-01 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:BACKGROUND AND OBJECTIVES:Experimental protocols for remote ischemic conditioning (RIC) utilize models in which a tourniquet is placed around the hindlimb or effluent is collected from an isolated heart. In analyzing the humoral factors that act as signal transducers in these models, sampled blood can be influenced by ...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2017.0092
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Cigarette smoking has been recognized as a prominent threat to women's health. We investigated the impact of smoking on clinical outcomes in Korean female patients after acute myocardial infarction (AMI). SUBJECTS AND METHODS:Out of the AMI patients who enrolled in the Korea AMI Registry, 444...
journal_title:Korean circulation journal
pub_type: 杂志文章
doi:10.4070/kcj.2015.45.1.22
更新日期:2015-01-01 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