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Antiplatelets

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https://www.readbyqxmd.com/read/28914761/flavonolignans-inhibit-il1-%C3%AE-induced-cross-talk-between-blood-platelets-and-leukocytes
#1
Michal Bijak, Angela Dziedzic, Ewelina Synowiec, Tomasz Sliwinski, Joanna Saluk-Bijak
Interleukin-1 beta (IL-1β)-the most potent pro-inflammatory is responsible for a broad spectrum of immune and inflammatory responses, it induces T-cell and B-cell activation and consequently the synthesis of other pro-inflammatory cytokines (such as IFN-γ and TNF). IL-1β induces the formation of blood platelet-leukocyte aggregates (PLAs), which suggests that IL-1β significantly affects the cross-talk between blood platelets and the immune response system, leading to coronary thrombosis. The aim of our study is to investigate the effect of flavonolignans (silybin, silychristin and silydianin) on the IL-1β-induced interaction between platelets and leukocytes, as well as on the expression and the secretion of pro-inflammatory factors...
September 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28914344/influence-of-genetic-co-factors-on-the-population-pharmacokinetic-model-for-clopidogrel-and-its-active-thiol-metabolite
#2
Dorota Danielak, Marta Karaźniewicz-Łada, Anna Komosa, Paweł Burchardt, Maciej Lesiak, Łukasz Kruszyna, Agnieszka Graczyk-Szuster, Franciszek Główka
PURPOSE: A high interindividual variability is observed in the pharmacokinetics of clopidogrel, a widely used antiplatelet drug. In the present study, a joint parent-metabolite population pharmacokinetic model was developed to adequately describe observed concentrations of clopidogrel and its active thiol metabolite (H4). METHODS: The study included 63 patients undergoing elective coronarography or percutaneous coronary intervention. The population pharmacokinetic model was developed in the NONMEM 7...
September 15, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28914276/appropriate-reconciliation-of-cardiovascular-medications-after-elective-surgery-and-postdischarge-acute-hospital-and-ambulatory-visits
#3
Jonathan S Lee, Ralph Gonzales, Eric Vittinghoff, Kitty K Corbett, Kirsten E Fleischmann, Neil Sehgal, Andrew D Auerbach
OBJECTIVE: To describe appropriate discharge reconciliation of cardiovascular medications and assess associations with postdischarge healthcare utilization in surgical patients. DESIGN: Retrospective cohort study from January 2007 to December 2011. SETTING: An academic medical center. PATIENTS: Seven hundred and fifty-two adults undergoing elective noncardiac surgery and taking antiplatelet agents, beta-blockers, renin-angiotensin system inhibitors, or statin lipid-lowering agents before surgery...
September 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28913351/adequate-platelet-function-inhibition-confirmed-by-two-inductive-agents-predicts-lower-recurrence-of-ischemic-stroke-transient-ischemic-attack
#4
Lulu Zhang, Xiaowei Hu, Juehua Zhu, Xiuying Cai, Yan Kong, Hui Wang, Shanshan Diao, Hongru Zhao, Jianhua Jiang, Dapeng Wang, Quanquan Zhang, Yiren Qin, Wei Yue, Qi Fang
BACKGROUND: The correlation between platelet function and recurrent ischemic stroke or TIA remains uncertain. OBJECTIVE: To investigate two inductive agents to detect platelet functions and assess associations with recurrent ischemic stroke/TIA. METHOD: The study included 738 ischemic stroke/TIA patients. On days 0, 3, and 9 after antiplatelet therapy, platelet function tests were determined by maximum aggregation rate (MAR) using a PL-11 platelet function analyzer and phase matching reagents...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28911508/relationship-of-pcsk9-and-urinary%C3%A2-thromboxane-excretion-to%C3%A2-cardiovascular-events-in-patients%C3%A2-with%C3%A2-atrial-fibrillation
#5
Daniele Pastori, Cristina Nocella, Alessio Farcomeni, Simona Bartimoccia, Maria Santulli, Fortunata Vasaturo, Roberto Carnevale, Danilo Menichelli, Francesco Violi, Pasquale Pignatelli
BACKGROUND: Soluble proprotein convertase subtilisin/kexin type 9 (PCSK9) has been shown to be predictive of cardiovascular events (CVEs) in patients who are at high cardiovascular risk. No data on the effect of PCSK9 levels in patients with atrial fibrillation (AF) are available. OBJECTIVES: This study investigated the association between PCSK9 and CVEs in AF as well as the relationship between PCSK9 and urinary 11-dehydro-thromboxane B2 (11-dh-TxB2), a marker of platelet activation...
September 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28910806/warfarin-use-and-increased-mortality-in-end-stage-renal-disease
#6
Mark C Lin, Elani Streja, Melissa Soohoo, Medhat Hanna, Javad Savoj, Kamyar Kalantar-Zadeh, Wei Ling Lau
BACKGROUND: Controversy exists regarding the benefits and risks of warfarin therapy in chronic kidney disease (CKD) and end-stage renal disease (ESRD) patients. In this study, we assessed mortality and cardiovascular outcomes associated with warfarin treatment in patients with stages 3-5 CKD and ESRD admitted to the University of California-Irvine Medical Center. METHODS: In a retrospective matched cohort study, we identified 59 adult patients with stages 3-6 CKD initiated on warfarin during the period 2011-2013, and 144 patients with stages 3-6 CKD who had indications for anticoagulation therapy but were not initiated on warfarin...
September 15, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28910463/use-of-acetylsalicylic-acid-in-the-prehospital-setting-for-suspected-acute-ischemic-stroke
#7
John M Levri, Armando Ocon, Paul Schunk, Cord W Cunningham
Acute ischemic stroke (AIS) treatment guidelines include various recommendations for treatment once the patient arrives at the hospital. Prehospital care recommendations, however, are limited to expeditious transport to a qualified hospital and supportive care. The literature has insufficiently considered prehospital antiplatelet therapy. An otherwise healthy 30-year-old black man presented with headache for about 3 hours, left-sided facial and upper extremity numbness, slurred speech, miosis, lacrimation, and general fatigue and malaise...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28906578/ultra-early-hematoma-growth-in-antithrombotic-pretreated-patients-with-intracerebral-hemorrhage
#8
Jaume Roquer, Rosa María Vivanco-Hidalgo, Jaume Capellades, Angel Ois, Elisa Cuadrado-Godia, Eva Giralt-Steinhauer, Carolina Soriano-Tárraga, Marina Mola-Caminal, Maria Serra-Martínez, Carla Avellaneda-Gómez, Jordi Jiménez-Conde, Ana Rodríguez-Campello
BACKGROUND: Patients with acute intracerebral hemorrhage (ICH) pretreated with antithrombotic drugs may have increased early hematoma growth, which would increase mortality risk. We analyzed the effect of antiplatelet (AP) and vitamin-K antagonist (VKA) pretreatment on ultra-early hematoma growth (uHG), and its relationship with mortality in patients with acute supratentorial ICH. METHODS: This is an observational retrospective study of a prospective register of 197 ICH patients with first computed tomography (CT) scan taken less than 6 hours from ICH symptoms onset...
September 14, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28906404/ticagrelor-induced-life-threatening-bleeding-via-the-cyclosporine-mediated-drug-interaction-a-case-report
#9
Chi Zhang, Long Shen, Min Cui, Xiaoyan Liu, Zhichun Gu
RATIONALE: Ticagrelor has become one of the first-line antiplatelet agents in acute coronary syndrome (ACS) patients recommend by the guideline due to its more potent and predictable antiplatelet effect. However, bleeding is still a severe drug adverse reaction of ticagrelor therapy. We report a first case on ticagrelor-induced life-threatening bleeding via the cyclosporine-mediated drug interaction. PATIENT CONCERNS: A 58-year-old Chinese male who received cyclosporine 200 mg daily 5 years after renal transplantation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28906384/the-safety-and-efficacy-of-oral-anticoagulants-with-dual-versus-single-antiplatelet-therapy-in-patients-after-percutaneous-coronary-intervention-a-meta-analysis
#10
Jie Chen, Li-Yu Wang, Chao Deng, Xing-Hua Jiang, Tu-Gang Chen
BACKGROUND: A growing number of patients require oral anticoagulant (OAC) after undergoing percutaneous coronary intervention (PCI) with stent implantation due to the development of atrial fibrillation, but the optimal antithrombotic regimen remains controversial in these patients. METHODS: We systematically searched PUBMED, EMBASE, and CENTRAL from inception until September 2016 for randomized controlled trials or cohort studies that evaluated the comparative effects of TT versus DT...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28905638/higher-risk-of-bleeding-in-asians-presenting-with-st-segment-elevation-myocardial-infarction-analysis-of-the-national-inpatient-sample-database
#11
Naoki Misumida, Gbolahan O Ogunbayo, Sun Moon Kim, Odunayo Olorunfemi, Ayman Elbadawi, Richard J Charnigo, Ahmed Abdel-Latif, Khaled M Ziada
Bleeding is a major complication in patients presenting with ST-segment elevation myocardial infarction (STEMI). Several studies suggested that Asians are more susceptible to bleeding when treated with antiplatelets, anticoagulants, and thrombolytic agents. In our study, we aimed to investigate the association between Asian ethnicity and bleeding events in patients who presented with STEMI. We analyzed the Nationwide Inpatient Sample database from 2002 to 2013 and identified patients hospitalized with a primary diagnosis of STEMI...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28904820/successful-cerebral-thrombectomy-for-a-nonagenarian-with-stroke-in-the-subacute-phase-after-transcatheter-aortic-valve-implantation
#12
Kazuya Matsuo, Atsushi Fujita, Jun Tanaka, Tomoaki Nakai, Masaaki Kohta, Kohkichi Hosoda, Toshiro Shinke, Ken-Ichi Hirata, Eiji Kohmura
BACKGROUND: Thromboembolic events are infrequent but serious complications of transcatheter aortic valve implantation (TAVI), occurring in 2.3-10% of the patients. However, the cause of post-TAVI stroke is unclear. CASE DESCRIPTION: A 90-year-old female underwent transfemoral-TAVI for severe aortic stenosis. Ten days later, she presented with an ischemic stroke of the left middle cerebral artery territory due to new-onset atrial fibrillation (NOAF). She underwent emergent endovascular thrombectomy with good reperfusion approximately 6 hours after onset of symptoms...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28902593/patent-foramen-ovale-closure-or-anticoagulation-vs-antiplatelets-after-stroke
#13
Jean-Louis Mas, Geneviève Derumeaux, Benoît Guillon, Evelyne Massardier, Hassan Hosseini, Laura Mechtouff, Caroline Arquizan, Yannick Béjot, Fabrice Vuillier, Olivier Detante, Céline Guidoux, Sandrine Canaple, Claudia Vaduva, Nelly Dequatre-Ponchelle, Igor Sibon, Pierre Garnier, Anna Ferrier, Serge Timsit, Emmanuelle Robinet-Borgomano, Denis Sablot, Jean-Christophe Lacour, Mathieu Zuber, Pascal Favrole, Jean-François Pinel, Marion Apoil, Peggy Reiner, Catherine Lefebvre, Patrice Guérin, Christophe Piot, Roland Rossi, Jean-Luc Dubois-Randé, Jean-Christophe Eicher, Nicolas Meneveau, Jean-René Lusson, Bernard Bertrand, Jean-Marc Schleich, François Godart, Jean-Benoit Thambo, Laurent Leborgne, Patrik Michel, Luc Pierard, Guillaume Turc, Martine Barthelet, Anaïs Charles-Nelson, Christian Weimar, Thierry Moulin, Jean-Michel Juliard, Gilles Chatellier
Background Trials of patent foramen ovale (PFO) closure to prevent recurrent stroke have been inconclusive. We investigated whether patients with cryptogenic stroke and echocardiographic features representing risk of stroke would benefit from PFO closure or anticoagulation, as compared with antiplatelet therapy. Methods In a multicenter, randomized, open-label trial, we assigned, in a 1:1:1 ratio, patients 16 to 60 years of age who had had a recent stroke attributed to PFO, with an associated atrial septal aneurysm or large interatrial shunt, to transcatheter PFO closure plus long-term antiplatelet therapy (PFO closure group), antiplatelet therapy alone (antiplatelet-only group), or oral anticoagulation (anticoagulation group) (randomization group 1)...
September 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28902580/patent-foramen-ovale-closure-or-antiplatelet-therapy-for-cryptogenic-stroke
#14
Lars Søndergaard, Scott E Kasner, John F Rhodes, Grethe Andersen, Helle K Iversen, Jens E Nielsen-Kudsk, Magnus Settergren, Christina Sjöstrand, Risto O Roine, David Hildick-Smith, J David Spence, Lars Thomassen
Background The efficacy of closure of a patent foramen ovale (PFO) in the prevention of recurrent stroke after cryptogenic stroke is uncertain. We investigated the effect of PFO closure combined with antiplatelet therapy versus antiplatelet therapy alone on the risks of recurrent stroke and new brain infarctions. Methods In this multinational trial involving patients with a PFO who had had a cryptogenic stroke, we randomly assigned patients, in a 2:1 ratio, to undergo PFO closure plus antiplatelet therapy (PFO closure group) or to receive antiplatelet therapy alone (antiplatelet-only group)...
September 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28902434/biologically-active-quinoline-and-quinazoline-alkaloids-part-i
#15
REVIEW
Xiao-Fei Shang, Susan L Morris-Natschke, Ying-Qian Liu, Xiao Guo, Xiao-Shan Xu, Masuo Goto, Jun-Cai Li, Guan-Zhou Yang, Kuo-Hsiung Lee
Quinoline and quinazoline alkaloids, two important classes of N-based heterocyclic compounds, have attracted tremendous attention from researchers worldwide since the 19th century. Over the past 200 years, many compounds from these two classes were isolated from natural sources, and most of them and their modified analogs possess significant bioactivities. Quinine and camptothecin are two of the most famous and important quinoline alkaloids, and their discoveries opened new areas in antimalarial and anticancer drug development, respectively...
September 13, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28898204/beneficial-effect-of-beraprost-sodium-plus-aspirin-in-the-treatment-of-acute-ischemic-stroke
#16
Siqia Chen, Sisi Xie, Wenzhen He, Duncan Wei, Shunxian Li, Wenjie Chen
BACKGROUND To investigate the combination of beraprost sodium (BPS) and aspirin in the treatment of acute ischemic stroke (AIS). MATERIAL AND METHODS 308 patients with acute cerebral infarction were randomly divided into two groups: experimental group (n=154), treated with BPS (40 μg, tid) and aspirin (100 mg, qd); control group (n=154), treated with 100 mg of aspirin, qd). The antiplatelet therapy remained unchangeable until six months after hospital discharge. RESULTS Initially, no significant differences were found between the two groups...
September 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28895771/platelet-reactivity-adjusted-antiplatelet-therapy-in-patients-with-percutaneous-coronary-intervention-a-meta-analysis-of-randomized-controlled-trials
#17
Zhenhua Xing, Liang Tang, Zhaowei Zhu, Jiabing Huang, Xiaofan Peng, Xinqun Hu
Numerous number of evidences show that high on-treatment platelet reactivity is a well-known risk factor for adverse events in patients after percutaneous coronary intervention (PCI). Controversial situations still exist regarding the effectiveness of tailoring antiplatelet therapy according to platelet function monitoring. The PubMed, Embase, and Cochrane Central databases were searched for randomized trials comparing platelet reactivity-adjusted antiplatelet therapy with conventional antiplatelet therapy in patients undergoing PCI...
September 12, 2017: Platelets
https://www.readbyqxmd.com/read/28895444/d-dimer-elevation-as-a-blood-biomarker-for-detection-of-structural-disorder-in-mild-traumatic-brain-injury
#18
Kazutaka Sugimoto, Eiichi Suehiro, Mizuya Shinoyama, Hirokazu Sadahiro, Kouhei Haji, Yuichi Fujiyama, Reo Kawano, Mitsuaki Nishioka, Michiyasu Suzuki
Computed tomography (CT) scans are useful in patients with traumatic brain injury (TBI), but the potential risks associated with ionizing radiation are unknown. Furthermore, CT scans are not commonly available in developing countries. In this study, coagulopathy and abnormal fibrinolysis were investigated as blood biomarkers for detection of structural disorder in mild TBI. A total of 88 patients with mild and isolated TBI (Glasgow Coma Scale (GCS) score 14-15) were admitted to Kenwakai Ootemachi Hospital between October 2014 and March 2016...
September 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28895303/coronary-angiography-with-or-without-percutaneous-coronary-intervention-in-patients-with-hemophilia-systematic-review
#19
Christian Boehnel, Hans Rickli, Lukas Graf, Micha T Maeder
OBJECTIVES: We aimed to summarize the evidence for periprocedural and long-term strategies to both minimize the bleeding risk and ensure sufficient anticoagulation and antiaggregation in hemophilia patients undergoing coronary angiography with or without percutaneous coronary interventions (PCI). BACKGROUND: Hemophilia patients undergoing coronary angiography and PCI are at risk of bleeding due to deficiency of the essential clotting factors VIII or IX combined with the need of peri-interventional anticoagulation and antiaggregation and dual antiplatelet therapy (DAPT) after PCI...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28895000/endoscopic-diode-laser-therapy-for-chronic-radiation-proctitis
#20
Lino Polese, Lucia Marini, Roberto Rizzato, Edgardo Picardi, Stefano Merigliano
The purpose of this study is to determine the effectiveness of endoscopic diode laser therapy in patients presenting rectal bleeding due to chronic radiation proctitis (CRP). A retrospective analysis of CRP patients who underwent diode laser therapy in a single institution between 2010 and 2016 was carried out. The patients were treated by non-contact fibers without sedation in an outpatient setting. Fourteen patients (median age 77, range 73-87 years) diagnosed with CRP who had undergone high-dose radiotherapy for prostatic cancer and who presented with rectal bleeding were included...
September 11, 2017: Lasers in Medical Science
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