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https://www.readbyqxmd.com/read/28065907/platelet-reactivity-in-human-immunodeficiency-virus-infected-patients-on-dual-antiplatelet-therapy-for-an-acute-coronary-syndrome-the-evere2st-hiv-study
#1
Marie Hauguel-Moreau, Franck Boccara, Anders Boyd, Joe-Elie Salem, Delphine Brugier, Angélique Curjol, Jean-Sébastien Hulot, Mathieu Kerneis, Sophie Galier, Ariel Cohen, Gilles Montalescot, Jean-Philippe Collet, Johanne Silvain
AIM: To explore platelet reactivity on dual antiplatelet therapy (DAPT) of acute coronary syndrome (ACS) patients infected with HIV. METHODS AND RESULTS: Acute coronary syndrome patients infected with HIV (n = 80) were matched to ACS patients without HIV (n = 160) on age, sex, diabetes, and DAPT (aspirin 100%, clopidogrel 68%, prasugrel 31%, ticagrelor 1%). Platelet reactivity was evaluated after ACS (>30 days) by measuring residual platelet aggregation (RPA) to aspirin and to P2Y12 inhibitors with light transmission aggregometry (LTA), VerifyNow aspirin assay (ARU), and P2Y12 assay (PRU) and with the VASP platelet reactivity index (VASP-PRI)...
January 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28063930/systematic-time-dependent-visualization-and-quantitation-of-the-neurogenic-rate-in-brain-organoids
#2
Yoichi Kosodo, Taeko Suetsugu, Tetsuya J Kobayashi, Fumio Matsuzaki
Organoids mimicking the formation of the brain cortex have been demonstrated to be powerful tools for developmental studies as well as pathological investigations of brain malformations. Here, we report an integrated approach for the quantification of temporal neural production (neurogenic rate) in organoids derived from embryonic brains. Spherical tissue fragments with polarized cytoarchitectures were incubated in multiple cavities arranged in a polymethylmethacrylate chip. The time-dependent neurogenic rate in the organoids was monitored by the level of EGFP under the promoter of Tbr2, a transcription factor that is transiently expressed in neural fate-committed progenitors during corticogenesis...
January 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28058211/organ-transplantation-and-drug-eluting-stents-perioperative-challenges
#3
REVIEW
Aparna Dalal
Patients listed for organ transplant frequently have severe coronary artery disease (CAD), which may be treated with drug eluting stents (DES). Everolimus and zotarolimus eluting stents are commonly used. Newer generation biolimus and novolimus eluting biodegradable stents are becoming increasingly popular. Patients undergoing transplant surgery soon after the placement of DES are at increased risk of stent thrombosis (ST) in the perioperative period. Dual antiplatelet therapy (DAPT) with aspirin and a P2Y12 inhibitor such as clopidogrel, prasugrel and ticagrelor is instated post stenting to decrease the incident of ST...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28052578/ticagrelor-increased-adenosine-and-cyclic-adenosine-monophosphate-plasma-concentration-compared-with-clopidogrel-in-acute-coronary-syndromes-patients
#4
Xiao-Ye Li, Qi-Bing Wang, Ying Xue, Jia-Hui Chen, Qian-Zhou Lv
Ticagrelor produces a more potent antiplatelet effect than clopidogrel, and inhibits cellular uptake of adenosine, which is associated with several cardiovascular consequences. We aimed to explore the correlation between adenosine and cyclic adenosine monophosphate (cAMP) plasma concentration and antiplatelet effect by clopidogrel or ticagrelor in acute coronary syndrome (ACS) patients receiving dual antiplatelet therapy (DAPT). We conducted a prospective, observational and single-centre cohort study enrolling 68 patients with non-ST-segment elevation ACS from January 2016 to May 2016...
January 4, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28045759/efficacy-and-safety-of-novel-oral-p2y12-receptor-inhibitors-in-st-segment-elevation-myocardial-infarction-patients-undergoing-pci-a-systematic-review-and-meta-analysis
#5
Jianjun Sun, Qian Xiang, Chao Li, Zining Wang, Kun Hu, Qiufen Xie, Yimin Cui
The efficacy and safety of novel oral P2Y12 receptor inhibitors (prasugrel and ticagrelor) are subjects of contention in ST-segment elevation myocardial infarction (STEMI) patients undergoing PCI, the optimal duration of therapy remains uncertain. We searched PubMed, Embase, Cochrane Library, CNKI, VIP, and WanFang Data to identify randomized controlled trials comparing novel oral P2Y12 receptor inhibitors to clopidogrel in STEMI patients undergoing PCI until February 2016. The primary efficacy and safety endpoint were all-cause mortality and major/minor bleeding...
January 3, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28045242/evidence-for-periprocedural-antiplatelet-therapy-heparinization-and-bridging-of-coumarin-therapy-in-carotid-revascularization
#6
Art Brand, Gert J DE Borst
Thromboembolism prevention is a crucial factor determining both the natural outcome and outcome of intervention of stenotic atherosclerotic carotid artery pathology. Roughly 80% of all natural course cerebral ischemic events are caused by thromboembolism, versus 20% due to hemodynamic insufficiency. The risk of periprocedural cerebral (micro) thromboembolization during carotid revascularization is considered to be even higher, with a higher rate in carotid artery stenting (CAS) as compared to carotid endarterectomy (CEA)...
January 3, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28044986/ischemic-and-bleeding-outcomes-in-elderly-patients-undergoing-a-prolonged-versus-shortened-duration-of-dual-antiplatelet-therapy-after-percutaneous-coronary-intervention-insights-from-the-prodigy-randomized-trial
#7
Raffaele Piccolo, Giulia Magnani, Sara Ariotti, Giuseppe Gargiulo, Marcello Marino, Andrea Santucci, Anna Franzone, Matteo Tebaldi, Dik Heg, Stephan Windecker, Marco Valgimigli
AIMS: To evaluate the efficacy and safety of 24-month vs. 6-month dual antiplatelet therapy (DAPT) among elderly (≥75 years) and non-elderly patients (<75 years) undergoing percutaneous coronary intervention. METHODS AND RESULTS: The primary efficacy endpoint of the PRODIGY trial was the composite of death, myocardial infarction, or cerebrovascular accident at 24-month follow-up. The key safety endpoint was type 2, 3 or 5 bleeding according to the BARC criteria...
January 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28042389/clinical-problems-with-antithrombotic-therapy-for-endoscopic-submucosal-dissection-for-gastric-neoplasms
#8
REVIEW
Toshiyuki Yoshio, Tsutomu Nishida, Yoshito Hayashi, Hideki Iijima, Masahiko Tsujii, Junko Fujisaki, Tetsuo Takehara
Endoscopic submucosal dissection (ESD) is minimally invasive and thus has become a widely accepted treatment for gastric neoplasms, particularly for patients with comorbidities. Antithrombotic agents are used to prevent thrombotic events in patients with comorbidities such as cardio-cerebrovascular diseases and atrial fibrillation. With appropriate cessation, antithrombotic therapy does not increase delayed bleeding in low thrombosis-risk patients. However, high thrombosis-risk patients are often treated with combination therapy with antithrombotic agents and occasionally require the continuation of antithrombotic agents or heparin bridge therapy (HBT) in the perioperative period...
December 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28033306/outcomes-of-%C3%A2-6-month-versus-12-month-dual-antiplatelet-therapy-after-drug-eluting-stent-implantation-a-meta-analysis-and-meta-regression
#9
Pedro A Villablanca, Daniele Massera, Verghese Mathew, Sripal Bangalore, Panagiota Christia, Irving Perez, Ningxin Wan, Stefanie Schulz-Schüpke, David F Briceno, Anna E Bortnick, Mario J Garcia, Richard Lucariello, Mark Menegus, Robert Pyo, Jose Wiley, Harish Ramakrishna
BACKGROUND: The benefit of ≤6-month compared with 12-month dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) with drug-eluting stent (DES) placement remains controversial. We performed a meta-analysis and meta-regression of ≤6-month versus 12-month DAPT in patients undergoing PCI with DES placement. METHODS: We conducted electronic database searches of randomized controlled trials (RCTs) comparing DAPT durations after DES placement...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28030808/inhibition-of-gamma-secretase-in-notch1-signaling-pathway-as-a-novel-treatment-for-ovarian-cancer
#10
Zhaoyi Feng, Wandong Xu, Chenguang Zhang, Mengran Liu, Hongwu Wen
Epithelial ovarian cancer (EOC) is the leading cause of death for gynecological cancer. Most patients are not diagnosed until the cancer is at an advanced stage with poor prognosis. Notch1 signaling pathway plays an oncogenic role in EOC. There have been few studies on enzymatic activity of γ-secretase and the mechanism of how γ-secretase inhibitor works on cancer cell. Here, we show that Jagged1 and NICD were highly expressed in ovarian carcinoma. The expressions of Notch1, Jagged1 and NICD in Notch1 pathway did not correlate with outcome in ovarian cancer...
December 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/28024166/an-east-asian-perspective-on-the-interaction-between-proton-pump-inhibitors-and-clopidogrel
#11
Duowu Zou, Khean-Lee Goh
Both proton pump inhibitors (PPIs) and clopidogrel are widely prescribed in the Asia-Pacific population. PPIs are the mainstay therapeutic agents for prophylaxis against aspirin gastropathy and for ARDs (Acid Related Disorders) including gastroesophageal reflux disease (GERD). They are also co-prescribed with oral anticoagulant agents (OAAs)and with dual-antiplatelet therapy (DAPT) for the treatment and prevention of gastrointestinal (GI) bleeding. Clopidogrel belongs to the drug class of thienopyridines, and is currently the most widely prescribed OAA either alone or in combination with aspirin...
December 26, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28018897/patient-centered-tablet-application-for-improving-medication-adherence-after-a-drug-eluting-stent
#12
Vicki Shah, Anandu Dileep, Carolyn Dickens, Vicki Groo, Betty Welland, Jerry Field, Matthew Baumann, Jose D Flores, Adhir Shroff, Zhongsheng Zhao, Yingwei Yao, Diana J Wilkie, Andrew D Boyd
BACKGROUND/AIMS: This study's objective was to evaluate a patient-centered educational electronic tablet application, "My Interventional Drug-Eluting Stent Educational App" (MyIDEA) to see if there was an increase in patient knowledge about dual antiplatelet therapy (DAPT) and medication possession ratio (MPR) compared to treatment as usual. METHODS: In a pilot project, 24 elderly (≥50 years old) research participants were recruited after a drug-eluting stent...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/28017673/outcome-after-surgery-for-acute-aortic-dissection-influence-of-preoperative-antiplatelet-therapy-on-prognosis
#13
Raphaelle Avigael Chemtob, Hasse Moeller-Soerensen, Lene Holmvang, Peter Skov Olsen, Hanne Berg Ravn
OBJECTIVES: Outcome in patients with acute coronary syndrome (ACS) is improved with dual antiplatelet therapy (DAPT). Patients with acute aortic dissection type A (AAD) often present with similar symptoms and may therefore be prescribed DAPT before diagnosis. The aim of this study was to evaluate the use of antiplatelet therapy (APT) prior to AAD surgery and patient outcome, including indications according to the European Society of Cardiology's (ESC) recent guidelines. DESIGN: A retrospective, observational study...
October 11, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28007927/managing-acute-coronary-syndromes-troponin-and-dapt-in-the-real-world
#14
EDITORIAL
Thomas F Lüscher
No abstract text is available yet for this article.
November 21, 2016: European Heart Journal
https://www.readbyqxmd.com/read/27999190/leptin-notch-signaling-axis-is-involved-in-pancreatic-cancer-progression
#15
Adriana Harbuzariu, Antonio Rampoldi, Danielle S Daley-Brown, Pierre Candelaria, Tia L Harmon, Crystal C Lipsey, Derrick J Beech, Alexander Quarshie, Gabriela Oprea Ilies, Ruben R Gonzalez-Perez
Pancreatic cancer (PC) shows a high death rate. PC incidence and prognosis are affected by obesity, a pandemic characterized by high levels of leptin. Notch is upregulated by leptin in breast cancer. Thus, leptin and Notch crosstalk could influence PC progression. Here we investigated in PC cell lines (BxPC-3, MiaPaCa-2, Panc-1, AsPC-1), derived tumorspheres and xenografts whether a functional leptin-Notch axis affects PC progression and expansion of pancreatic cancer stem cells (PCSC). PC cells and tumorspheres were treated with leptin and inhibitors of Notch (gamma-secretase inhibitor, DAPT) and leptin (iron oxide nanoparticle-leptin peptide receptor antagonist 2, IONP-LPrA2)...
December 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27993749/ultra-hydrophilic-stent-platforms-promote-early-vascular-healing-and-minimize-late-tissue-response-a-potential-alternative-to-second-generation-drug-eluting-stents
#16
Kumaran Kolandaivelu, Lynn Bailey, Stefano Buzzi, Arik Zucker, Vincent Milleret, Algirdas Ziogas, Martin Ehrbar, Ahmed A Khattab, James R Stanley, Gee K Wong, Brett Zani, Peter M Markham, Abraham R Tzafriri, Deepak L Bhatt, Elazer R Edelman
AIMS: Simple surface modifications can enhance coronary stent performance. Ultra-hydrophilic surface (UHS) treatment of contemporary bare metal stents (BMS) was assessed in vivo to verify whether they can provide long-term efficacy comparable to 2nd generation drug eluting stents (DES) while promoting healing comparably to BMS. METHODS AND RESULTS: UHS-treated BMS, untreated BMS and corresponding DES were tested for 3 commercial platforms. 30- and 90-day porcine coronary model were used to characterize late tissue response...
December 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27984541/crosstalk-between-notch-and-sonic-hedgehog-signaling-in-a-mouse-model-of-amyotrophic-lateral-sclerosis
#17
Xiaoxing Ma, Anna Drannik, Fan Jiang, Randy Peterson, John Turnbull
The developmental morphogen Sonic hedgehog (Shh) may continue to play a sustaining role in adult motor neurons, of potential relevance to motor neuron diseases including amyotrophic lateral sclerosis. The Shh signaling pathway is incompletely understood and interactions with other signaling pathways are possible. We focus here on Notch, and first show that there is an almost linear reduction in light output from a Gli reporter in Shh Light II cells in the presence of increasing concentrations of the Notch inhibitor DAPT (r=0...
December 15, 2016: Neuroreport
https://www.readbyqxmd.com/read/27977592/comparing-the-clinical-outcomes-in-patients-with-atrial-fibrillation-receiving-dual-antiplatelet-therapy-and-patients-receiving-an-addition-of-an-anticoagulant-after-coronary-stent-implantation-a-systematic-review-and-meta-analysis-of-observational-studies
#18
Nabin Chaudhary, Pravesh Kumar Bundhun, He Yan
BACKGROUND: Data regarding the clinical outcomes in patients with atrial fibrillation (AF) receiving dual antiplatelet therapy (DAPT) and an anticoagulant in addition to DAPT (DAPT + vitamin K antagonist [VKA]) after coronary stent implantation are still controversial. Therefore, in order to solve this issue, we aim to compare the adverse clinical outcomes in AF patients receiving DAPT and DAPT + VKA after percutaneous coronary intervention and stenting (PCI-S). METHODS: Observational studies comparing the adverse clinical outcomes such as major bleeding, major adverse cardiovascular events, stroke, myocardial infarction, all-cause mortality, and stent thrombosis (ST) in AF patients receiving DAPT + VKA therapy, and DAPT after PCI-S have been searched from Medline, EMBASE, and PubMed databases...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27974669/initial-experience-of-bioabsorbable-polymer-everolimus-eluting-synergy-stents-in-high-risk-patients-undergoing-complex-percutaneous-coronary-intervention-with-early-discontinuation-of-dual-antiplatelet-therapy
#19
Rebecca L Noad, Colm G Hanratty, Simon J Walsh
AIMS: As more elderly and co-morbid patients require percutaneous revascularization, 1 year of dual-antiplatelet therapy (DAPT) becomes concerning. Synergy stents (Boston Scientific) allow for early cessation of DAPT. This study assessed those in our unit who underwent percutaneous coronary intervention (PCI) with a Synergy stent to examine a minimum of 6 months of clinical outcomes after early discontinuation of DAPT. METHODS AND RESULTS: All non-trial patients in our unit who had PCI with a Synergy stent from August 2013 to February 2016 were retrospectively analyzed...
15, 2016: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/27970393/tct-219-influence-of-anemia-on-physician-recommended-dapt-discontinuation-after-percutaneous-coronary-intervention
#20
Michela Faggioni, Jaya Chandrasekhar, Usman Baber, Birgit Vogel, David Moliterno, Timothy Henry, Philippe Gabriel Steg, Antonio Colombo, Charles Gibson, Stuart Pocock, Bernhard Witzenbichler, Alaide Chieffo, David Cohen, Giora Weisz, Annapoorna Kini, George Dangas, Mitchell Krucoff, Roxana Mehran
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
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