Abstract:
:Background To assess differences in platelet inhibition during ticagrelor monotherapy (TIC) or dual therapy with ticagrelor and aspirin (TIC+ASP) in patients after percutaneous coronary intervention using a comprehensive panel of functional tests. Methods and Results In a single-center parallel group, open label, randomized controlled trial, 110 participants were randomized to receive either TIC (n=55) or TIC+ASP (n=55) for 4 weeks. The primary outcome was the platelet aggregation response with 10 μmol/L thrombin receptor activation peptide-6 (TRAP-6). The secondary outcomes were platelet aggregation responses and binding of surface activation markers with a panel of other activators. The mean percentage aggregation for 10 μmol/L TRAP-6 was similar for the TIC and TIC+ASP groups (mean difference+4.29; 95% CI, -0.87 to +9.46). Aggregation was higher in the TIC group compared with the TIC+ASP group with 1 μg/mL (+6.47; +2.04 to +10.90) and 0.5 μg/mL (+14.00; +7.63 to +20.39) collagen related peptide. Aggregation responses with 5 μmol/L TRAP-6, 5 μmol/L or 2.5 μmol/L thromboxane A2 receptor agonist and surface activation marker binding with 5 μmol/L TRAP-6 or 0.5 μg/mL collagen related peptide were the same between the treatment groups. Conclusions Patients with PCI show similar levels of inhibition of most platelet activation pathways with TIC compared with dual therapy with TIC + ASP. However, the greater aggregation response with collagen related peptide during TIC indicates incomplete inhibition of glycoprotein VI (collagen) receptor-mediated platelet activation. This difference in pharmacodynamic response to anti-platelet medication may contribute to the lower bleeding rates observed with TIC compared with dual antiplatelet therapy in recent clinical trials. Registration Information URL: https://www.isrctn.com; Unique Identifier ISRCTN84335288.
journal_name
J Am Heart Assocjournal_title
Journal of the American Heart Associationauthors
Johnson TW,Baos S,Collett L,Hutchinson JL,Nkau M,Molina M,Aungraheeta R,Reilly-Stitt C,Bowles R,Reeves BC,Rogers CA,Mundell SJ,Baumbach A,Mumford ADdoi
10.1161/JAHA.120.016495subject
Has Abstractpub_date
2020-12-15 00:00:00pages
e016495issue
24issn
2047-9980journal_volume
9pub_type
杂志文章abstract::Background Little attention has been paid to the importance of sex in the long-term prognosis of patients undergoing cardiac surgery. Methods and Results We conducted a retrospective cohort study of Ontario residents, aged ≥40 years, who underwent coronary artery bypass grafting (CABG) and/or aortic, mitral, or tricus...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.013260
更新日期:2019-09-03 00:00:00
abstract::Background The ISCHEMIA (International Study of Comparative Health Effectiveness with Medical and Invasive Approaches) trial failed to show a reduction in hard clinical end points with an early invasive strategy in stable ischemic heart disease (SIHD). However, the influence of left main disease and high-risk coronary...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.018104
更新日期:2021-01-05 00:00:00
abstract:BACKGROUND:Vascular smooth muscle cell proliferation, migration, and dedifferentiation are critical for vascular diseases. Recently, it was demonstrated that Notch receptors have opposing effects on intima formation after vessel injury. Therefore, it is important to investigate the specific regulatory pathways that act...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.005537
更新日期:2017-07-11 00:00:00
abstract:BACKGROUND:NO bioavailability has not been systematically examined in congenital heart disease (CHD). To assess NO in patients with CHD, we measured nasal NO (nNO) generated by the nasal epithelia, given blood NO is difficult to measure (half-life, <2 ms). Given NO's role in hemodynamic regulation and the association o...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.007447
更新日期:2017-12-06 00:00:00
abstract:BACKGROUND:There is increasing evidence implicating atrial mitochondrial dysfunction in the pathogenesis of atrial fibrillation. In this study, we explored whether alogliptin, a dipeptidyl peptidase-4 inhibitor, can prevent mitochondrial dysfunction and atrial remodeling in a diabetic rabbit model. METHODS AND RESULTS...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.005945
更新日期:2017-05-15 00:00:00
abstract::Background Red blood cell (RBC) transfusion and erythropoiesis-stimulating agent administration are cornerstones of clinical practice, yet concerns exist as to potential increased risk of thrombotic events. This study aims to identify RBC traits most relevant to venous thromboembolism (VTE) and assess their geneticall...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.016771
更新日期:2020-07-21 00:00:00
abstract:BACKGROUND:The ventricular fibrillation amplitude spectral area (AMSA) predicts whether an electrical shock could terminate ventricular fibrillation and prompt return of spontaneous circulation. We hypothesized that AMSA can guide more precise timing for effective shock delivery during cardiopulmonary resuscitation. M...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.006749
更新日期:2017-11-04 00:00:00
abstract:BACKGROUND:Multiple studies have shown that an NO-induced activation of vascular smooth muscle BK channels contributes to the NO-evoked dilation in many blood vessels. In vivo, NO is released continuously. NO attenuates vessel constrictions and, therefore, exerts an anticontractile effect. It is unknown whether the ant...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.007808
更新日期:2018-03-24 00:00:00
abstract:BACKGROUND:Women have high rates of peripheral artery disease (PAD) despite fewer cardiovascular disease (CVD) risk factors, compared to men. We sought to determine the gender-specific prevalence of low ankle brachial index (ABI) and the relationship to C-reactive protein (CRP) levels and CVD risk factors in the Life L...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.113.000651
更新日期:2014-03-13 00:00:00
abstract::Background Exposure to fine airborne particulate matter ( PM 2.5) induces quantitative and qualitative defects in bone marrow-derived endothelial progenitor cells of mice, and similar outcomes in humans may contribute to vascular dysfunction and the cardiovascular morbidity and mortality associated with PM 2.5 exposur...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.013041
更新日期:2019-07-02 00:00:00
abstract:BACKGROUND:Vascular complications and abnormal platelet function contribute to morbidity and mortality in diabetes mellitus. We hypothesized that the Rho-related GTPase protein, Rac1, can influence both endothelial and platelet function and might represent a potential novel therapeutic target in diabetes mellitus. MET...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.007322
更新日期:2018-04-06 00:00:00
abstract:BACKGROUND:Intracerebral hemorrhage (ICH) carries high risk for short-term mortality. We sought to identify race-specific predictors of mortality in ICH patients. METHODS AND RESULTS:We used 2 databases, the Johns Hopkins clinical stroke database and the Nationwide Inpatient Sample (NIS). We included 226 patients with...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.116.003540
更新日期:2016-08-16 00:00:00
abstract::Background Patients presenting to hospitals during non-weekday hours experience worse outcomes, often attributed to reduced staffing. The American Heart Association International Stroke Conference ( ISC ) is well attended by stroke clinicians. We sought to determine whether patients with acute ischemic stroke ( AIS ) ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.009842
更新日期:2018-11-06 00:00:00
abstract:BACKGROUND:Pulse pressure (PP) is related to cardiac function, arterial stiffness, fluid status, and vascular events. This study aimed to explore the prognostic role of PP upon admission in patients with acute ischemic stroke (AIS) based on a nation-wide stroke registry. METHODS AND RESULTS:We evaluated the associatio...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.116.005113
更新日期:2017-06-22 00:00:00
abstract:BACKGROUND:Vascular calcification is a common feature in patients with chronic kidney disease (CKD). CKD increases serum levels of tumor necrosis factor-α (TNFα), a critical mediator of vascular calcification. However, the molecular mechanism by which TNFα promotes CKD-dependent vascular calcification remains obscure. ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.113.000238
更新日期:2013-09-05 00:00:00
abstract::Background Should all out-of-hospital cardiac arrest (OHCA) patients be directly transported to cardiac arrest centers (CACs) remains under debate. Our study evaluated the impacts of different transport time and destination hospital on the outcomes of OHCA patients. Methods and Results Data were collected from 6655 OH...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.015544
更新日期:2020-06-02 00:00:00
abstract::Background Past reports suggested that total-body irradiation at 0.5 to 1.0 Gy could be responsible for atherosclerosis. Peripheral artery disease ( PAD ) is a manifestation of systematic atherosclerosis. Whether the consequences of a low-to-moderate dose of radiation include increased risk of PAD remains to be determ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.008921
更新日期:2018-12-04 00:00:00
abstract::Background Stroke is a leading cause of death and disability in the Middle East. Data on the uptake of evidence-based practices are limited in the region. We aimed to examine patterns of stroke presentation, management, and outcomes at public Palestinian hospitals. Methods and Results Comprehensive data from all patie...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.010778
更新日期:2018-11-20 00:00:00
abstract:BACKGROUND:It is uncertain whether sex and race affect thrombogenicity in patients with coronary artery disease. We evaluated the effects of sex and race on thrombogenicity in patients with coronary artery disease treated with aspirin. METHODS AND RESULTS:Patients on aspirin therapy for 1 week or longer with known or ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.114.001167
更新日期:2014-10-20 00:00:00
abstract::Background Genetic testing in pediatric primary dilated cardiomyopathy (DCM) patients has identified numerous disease-causing variants, but few studies have evaluated genetic testing outcomes in this population in the context of patient and familial clinical data or assessed the clinical implications of temporal chang...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.016195
更新日期:2020-06-02 00:00:00
abstract:BACKGROUND:Long chain acyl-CoA synthetases (ACSL) catalyze long-chain fatty acids (FA) conversion to acyl-CoAs. Temporal ACSL1 inactivation in mouse hearts (Acsl1(H-/-)) impaired FA oxidation and dramatically increased glucose uptake, glucose oxidation, and mTOR activation, resulting in cardiac hypertrophy. We used unb...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.114.001136
更新日期:2015-02-24 00:00:00
abstract::Background Antazoline mesylate represents an antihistamine capable of rapid and safe cardioversion of atrial fibrillation, yet evidence concerning its efficacy in comparison to other medications is insufficient. The study aimed to evaluate the success rate and safety of pharmacological cardioversion of atrial fibrilla...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.010153
更新日期:2018-10-16 00:00:00
abstract:BACKGROUND:Previous studies have documented a high prevalence of atrial fibrillation (AF) in individuals with obstructive sleep apnea (OSA). Central sleep apnea (CSA) has been associated with AF in patients with heart failure. However, data from prospective cohorts are sparse and few studies have distinguished the asso...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.116.004500
更新日期:2017-07-01 00:00:00
abstract::Background Many patients use opioids for nonmalignant pain, and opioid use in the general population has been associated with poor long-term outcomes. The use of high-risk medications, including opioid analgesics, may increase the risk of unplanned healthcare utilization. Methods and Results We performed a nested eval...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.010664
更新日期:2019-02-05 00:00:00
abstract::Background Postpericardiotomy syndrome ( PPS ) is a common complication after cardiac surgery. However, large-scale epidemiological studies about the effect of procedure type on the occurrence of PPS and mortality of patients with PPS have not yet been performed. Methods and Results We studied the association of PPS o...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.010269
更新日期:2018-11-20 00:00:00
abstract::Background Atrial fibrillation (AF) is associated with cognitive decline. Whether left atrial enlargement (LAE), a critical substrate for AF, is also associated is less well established. Therefore, we assessed the association of LAE and AF with cognitive decline in the ARIC-NCS (Atherosclerosis Risk in Communities Neu...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.013197
更新日期:2019-12-03 00:00:00
abstract::Background Sex-specific differences may influence prognosis after deferred revascularization following fractional flow reserve (FFR) measurement. This study sought to investigate the sex differences in long-term prognosis of patients with deferred revascularization following FFR assessment. Methods and Results A total...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.014458
更新日期:2020-02-18 00:00:00
abstract:BACKGROUND:A prior randomized controlled trial of social media exposure at Circulation determined that social media did not increase 30-day page views. Whether insufficient social media intensity contributed to these results is uncertain. METHODS AND RESULTS:Original article manuscripts were randomized to social media...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章,随机对照试验
doi:10.1161/JAHA.115.003088
更新日期:2016-04-27 00:00:00
abstract:BACKGROUND:People with end-stage renal disease (ESRD) are at risk for advanced heart failure, but little is known about use and outcomes of durable mechanical circulatory support in this setting. We examined use and outcomes of implantable ventricular assist devices (VADs) in a national ESRD cohort. METHODS AND RESULT...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.008664
更新日期:2018-07-06 00:00:00
abstract:BACKGROUND:Cardiac mesenchymal cell (CMC) administration improves cardiac function in animal models of heart failure. Although the precise mechanisms remain unclear, transdifferentiation and paracrine signaling are suggested to underlie their cardiac reparative effects. We have shown that histone deacetylase 1 (HDAC1) ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.006183
更新日期:2017-07-05 00:00:00