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https://www.readbyqxmd.com/read/28721003/patient-compliance-with-venous-thromboembolism-prophylaxis-vte
#1
John Ross Blackwell, Parag Raval, John-Patrick Quigley, Amit Patel, Donald McBride
Venous thromboembolic disease (VTE) comprises pulmonary embolism (PE) and deep vein thrombosis (DVT), and causes morbidity and mortality, particularly in trauma and orthopaedic patients. Prevalence of 0.9% and 1.2% respectively are reported, with mortality rates up to 13.8%. Chemical thromboprophylactic agents including low molecular weight heparin (LMWH) are considered cost effective in reducing VTE risk. Evidence for anti-platelets including Aspirin for VTE prophylaxis is less compelling and is not supported as monotherapy...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28718695/enhanced-procoagulant-activity-of-platelets-after-chemotherapy-in-non-small-cell-lung-cancer
#2
Ruishuang Ma, Yayan Bi, Junjie Kou, Jin Zhou, Jialan Shi
The procoagulant status of patients with non-small cell lung cancer (NSCLC) after chemotherapy is poorly characterized and the role of platelets in hypercoagulative state of NSCLC is unknown. The aim of this study was to evaluate the procoagulant activity (PCA) of platelets in NSCLC before and after chemotherapy. The subjects were 52 patients newly diagnosed with NSCLC. The patients had decreased clotting time compared with healthy subjects, and the thrombin-antithrombin complex increased 2.5 fold after chemotherapy...
July 18, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28717586/evaluating-platelet-aggregation-dynamics-from-laser-speckle-fluctuations
#3
Zeinab Hajjarian, Diane M Tshikudi, Seemantini K Nadkarni
Platelets are key to maintaining hemostasis and impaired platelet aggregation could lead to hemorrhage or thrombosis. We report a new approach that exploits laser speckle intensity fluctuations, emanated from a drop of platelet-rich-plasma (PRP), to profile aggregation. Speckle fluctuation rate is quantified by the speckle intensity autocorrelation, g2(t), from which the aggregate size is deduced. We first apply this approach to evaluate polystyrene bead aggregation, triggered by salt. Next, we assess dose-dependent platelet aggregation and inhibition in human PRP spiked with adenosine diphosphate and clopidogrel...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28712008/acute-lower-gastrointestinal-haemorrhage-outcomes-and-risk-factors-for-intervention-in-949-emergency-cases
#4
Kheng-Seong Ng, Natasha Nassar, Deanne Soares, Patrick Stewart, Marc A Gladman
PURPOSE: Outcomes of acute lower gastrointestinal haemorrhage (ALGIH) are mostly derived from studies performed in the sub-acute/elective rather than the emergency department (ED) setting. The aims of this study were to determine the incidence and outcomes of patients presenting to a tertiary hospital ED with ALGIH and to identify associated clinicopathological risk factors. METHOD: A retrospective observational cohort study of consecutive patients presenting with ALGIH to a tertiary hospital ED was performed...
July 15, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28707308/baseline-anemia-in-patients-undergoing-percutaneous-coronary-intervention-after-an-acute-coronary-syndrome-a-paradox-of-high-bleeding-risk-high-ischemic-risk-and-complex-coronary-disease
#5
Khaled Yazji, Fairoz Abdul, Senthil Elangovan, Muhammad Z Ul Haq, Nick Ossei-Gerning, Keith Morris, Richard Anderson, Tim Kinnaird
OBJECTIVES: To define more clearly the associations between baseline anemia, bleeding/ischemia risk, coronary disease severity, and outcomes by revascularization completeness. BACKGROUND: Anemia is associated with adverse outcomes in patients presenting with an acute coronary syndrome (ACS). METHODS AND RESULTS: Data was sourced from hospital databases for patients admitted with an ACS to a single center between 2011 and 2014. Using WHO anemia criteria, 468 (26...
July 13, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28707198/platelet-targeted-pharmacologic-treatments-as-anti-cancer-therapy
#6
REVIEW
P Gresele, S Momi, M Malvestiti, M Sebastiano
Platelets act as multifunctional cells participating in immune response, inflammation, allergy, tissue regeneration, and lymphoangiogenesis. Among the best-established aspects of a role of platelets in non-hemostatic or thrombotic disorders, there is their participation in cancer invasion and metastasis. The interaction of many different cancer cells with platelets leads to platelet activation, and on the other hand platelet activation is strongly instrumental to the pro-carcinogenic and pro-metastatic activities of platelets...
July 13, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28698883/anti-platelet-factor-4-heparin-antibody-formation-occurs-endogenously-and-at-unexpected-high-frequency-in-polycythemia-vera
#7
Sara C Meyer, Eva Steinmann, Thomas Lehmann, Patricia Muesser, Jakob R Passweg, Radek C Skoda, Dimitrios A Tsakiris
BACKGROUND: Myeloproliferative neoplasms (MPN) encounter thromboses due to multiple known risk factors. Heparin-induced thrombocytopenia (HIT) is a thrombotic syndrome mediated by anti-platelet factor 4 (PF4)/heparin antibodies with undetermined significance for thrombosis in MPN. We hypothesized that anti-PF4/heparin Ab might occur in MPN and promote thrombosis. METHODS: Anti-PF4/heparin antibodies were analyzed in 127 MPN patients including 76 PV and 51 ET. Screening, validation testing, and isotype testing of anti-PF4/heparin Ab were correlated with disease characteristics...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28692111/a-randomised-trial-on-the-effect-of-anti-platelet-therapy-on-the-systemic-inflammatory-response-in-human-endotoxaemia
#8
Dorien Kiers, Wouter A van der Heijden, Lisa van Ede, Jelle Gerretsen, Quirijn de Mast, André J van der Ven, Saloua El Messaoudi, Gerard A Rongen, Marc Gomes, Matthijs Kox, Peter Pickkers, Niels P Riksen
The use of acetylsalicylic acid (ASA) is associated with improved outcome in patients with sepsis, and P2Y12 inhibitors have been suggested to also have immunomodulatory effects. Therefore, we evaluated the effects of clinically relevant combinations of antiplatelet therapy on the immune response in experimental endotoxaemia in humans in vivo. Forty healthy subjects were randomised to seven days of placebo, placebo with ASA, ticagrelor and ASA, or clopidogrel and ASA treatment. Systemic inflammation was elicited at day seven by intravenous administration of Escherichia coli endotoxin...
July 6, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28685194/biological-activity-of-lipopeptides-from-bacillus
#9
REVIEW
Haobin Zhao, Dongyan Shao, Chunmei Jiang, Junling Shi, Qi Li, Qingsheng Huang, Muhammad Shahid Riaz Rajoka, Hui Yang, Mingliang Jin
The lipopeptides of Bacillus are small metabolites that contain a cyclic structure formed by 7-10 amino acids (including 2-4 D-amino acids) and a beta-hydroxy fatty acid with 13-19 C atoms. These lipopeptides exhibit a variety of biological activities, including interactions with biofilms, and anti-fungal, anti-inflammatory, anti-tumor, anti-virus, and anti-platelet properties. The multiple activities of lipopeptides have stimulated significant interest in the exploitation of these lipopeptides for use as antibiotics, feed additives, anti-tumor agents, urgent thrombolytic therapeutic agents, and drug delivery systems...
July 6, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28681242/the-potential-role-of-platelets-in-the-consensus-molecular-subtypes-of-colorectal-cancer
#10
REVIEW
Michael Lam, Jason Roszik, Preeti Kanikarla-Marie, Jennifer S Davis, Jeffrey Morris, Scott Kopetz, David G Menter
The consensus molecular subtypes (CMS) in colorectal cancer (CRC) represent distinct molecular subcategories of disease as reflected by comprehensive molecular profiling. The four CMS subtypes represent unique biology. CMS1 represents high immune infiltration. CMS2 demonstrates upregulation of canonical pathways such as WNT signaling. Widespread metabolic changes are seen in CMS3. CMS4 represents a mesenchymal phenotype with hallmark features including complement activation, matrix remodeling, angiogenesis, epithelial-mesechymal transition (EMT), integrin upregulation and stromal infiltration...
July 6, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28670632/systemic-sunitinib-malate-treatment-for-advanced-juxtapapillary-retinal-hemangioblastomas-associated-with-von-hippel-lindau-disease
#11
Jared E Knickelbein, Naima Jacobs-El, Wai T Wong, Henry E Wiley, Catherine A Cukras, Catherine B Meyerle, Emily Y Chew
PURPOSE: To describe the clinical course of advanced juxtapapillary retinal capillary hemangioblastomas (RCH) associated with von Hippel-Lindau (VHL) disease treated with systemic sunitinib malate, an agent that inhibits both anti-vascular endothelial growth factor and anti-platelet-derived growth factor signaling. DESIGN: Observational case review. PARTICIPANTS: Three patients with advanced VHL-related juxtapapillary RCH treated with systemic sunitinib malate...
May 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28659797/specific-combination-of-salvianolic-acids-as-core-active-ingredients-of-danhong-injection-for-treatment-of-arterial-thrombosis-and-its-derived-dry-gangrene
#12
Tiechan Zhao, Lianying Chang, Boyong Zhang, Ming Lu, Xiaoyi Wang, John O Orgah, Yuefei Wang, Xiaoxuan Tian, Jing Yang, Guanwei Fan, Boli Zhang, Yan Zhu
Although single-targeting anti-platelet agents are used extensively in clinics, their limitations in resistance and bleeding have started a trend of combination therapy. Danhong injection (DHI) is a widely prescribed injection medicine for cardiovascular and cerebrovascular diseases in China. However, its precise clinical efficacy and functional components remain unexplored. In this study, we investigated the anti-thrombotic role and its chemical basis of DHI. In a photochemically-induced thrombosis model, DHI effectively dissolved thrombus and ameliorated its derived dry gangrene...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28651914/phenylsulfonylfuroxan-no-donor-phenols-synthesis-and-multifunctional-activities-evaluation
#13
Yundong Xie, Yaping Yang, Sen Li, Yanhong Xu, Wenfang Lu, Zizhang Chen, Guangde Yang, Yiping Li, Yongxiao Cao, Xiaoli Bian
Phenylsulfonyfuroxan nitric oxide (NO)-donor phenols were designed, synthesized and evaluated. The compounds were designed through a symbiotic approach using selected phenols and phenylsulfonylfuroxan NO-donor. The antioxidant activities of the hybrid compounds T2-T6 showed to be good in vivo. Compounds T4 and T6 revealed excellent yeast α-glucosidase inhibitory activity and anti-glycosylation activity. All of the compounds exhibited strong NO releasing activity and significant anti-platelet aggregation activity...
June 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28648031/-impact-of-different-antithrombotic-therapy-strategy-on-prognosis-in-coronary-heart-disease-patients-combining-with-atrial-fibrillation-a-meta-analysis
#14
C Yuan, L Zhong, R C Huang
Objective: To evaluate the impact of various anticoagulation antiplatelet therapy strategies on the prognosis of patients with coronary heart disease combining with atrial fibrillation. Methods: Present meta analysis was performed according to search results on English EMBASE database by computer retrieval, Pubmed, the Cochrane Central Register of Controlled Trials, Medline, Chinese CBM database, CNKI database, Wan Fang database, China science and technology papers online electronic databases, manual retrieval for important international conference proceedings up to April 30 2016...
June 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28636514/duration-of-dual-anti-platelet-therapy-state-of-the-art-after-the-dapt-and-pegasus-timi-54-trials
#15
Charles Pirlet, Victor Legrand, Astrid Nyssen, Luc Pierard, Olivier Gach
Dual anti-platelet therapy is prescribed in the setting of coronary heart disease for the prevention of stent thrombosis and acute thrombotic events. The optimal duration of dual anti-platelet therapy is still under debate as numerous trials have shown non-inferiority of a strategy of early cessation of one of the agents as compared to the standard practice whereas two larger trials have demonstrated benefit of prolonging dual anti-platelet therapy.
March 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28629235/atrial-fibrillation-as-a-complication-of-ibrutinib-therapy-clinical-features-and-challenges-of-management
#16
Bronwyn C Thorp, Xavier Badoux
Ibrutinib is a Bruton's tyrosine kinase (BTK) inhibitor finding increasingly widespread use in non-Hodgkin lymphoma. Evidence of an increased risk of atrial fibrillation (AF) emerged in Phase III studies with a median incidence of approximately 6%. The mechanism remains unknown, but inhibition of a cardioprotective pathway has been proposed. Ibrutinib induces a platelet function defect, increasing the bleeding risk of anticoagulation for AF stroke prophylaxis. Multiple potential drug interactions are an added complication...
June 20, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28623176/duration-of-dual-anti-platelet-therapy-in-patients-with-an-acute-coronary-syndrome-undergoing-percutaneous-coronary-intervention-a-meta-analysis-of-randomized-controlled-trials
#17
Chirag Bavishi, Vrinda Trivedi, Mandeep Singh, Edward Katz, Franz H Messerli, Sripal Bangalore
BACKGROUND: The recent AHA/ACC guidelines on duration of dual anti-platelet therapy (DAPT) recommend DAPT for 1 year in patients presenting with an acute coronary syndrome, with a Class IIb recommendation for continuation. We aim to assess the evidence for these recommendations using a meta-analytic approach. METHODS: We searched electronic databases for randomized trials comparing short-term (≤6 months) vs 12 months vs extended (>12 months) DAPT in patients with an acute coronary syndrome undergoing percutaneous coronary intervention...
June 13, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28622439/clinical-effectiveness-of-a-bayesian-algorithm-for-the-diagnosis-and-management-of-heparin-induced-thrombocytopenia
#18
Robert A Raschke, Tyler Gallo, Steven C Curry, Tonya Whiting, Angela Padilla-Jones, Theodore E Warkentin
BACKGROUND: Heparin-induced thrombocytopenia (HIT) is a life-threatening drug reaction caused by anti-platelet factor 4/heparin (anti-PF4/H) antibodies. Commercial tests to detect these antibodies have limitations. We previously developed a diagnostic algorithm for HIT that incorporated "four Ts" (4Ts) scoring and a stratified interpretation of an anti-PF4/H enzyme-linked immunosorbent assay (ELISA) and yielded a discriminant accuracy of 0.97 (95% CI: 0.93-1.00). OBJECTIVES: The purpose of this study was to validate the algorithm in an independent patient population and quantitate effects that algorithm adherence could have on clinical care...
June 16, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28619235/morphological-and-pharmacological-determinants-of-peri-procedural-myocardial-infarction-following-elective-stent-implantation-optical-coherence-tomography-sub-analysis-of-the-prasfit-elective-study
#19
Kenzo Uzu, Toshiro Shinke, Hiromasa Otake, Tomofumi Takaya, Tsuyoshi Osue, Masamichi Iwasaki, Hiroto Kinutani, Akihide Konishi, Masaru Kuroda, Hachidai Takahashi, Daisuke Terashita, Ken-Ichi Hirata, Shigeru Saito, Masato Nakamura, Junya Shite, Takashi Akasaka
BACKGROUND: Previous studies have suggested that peri-procedural myocardial infarction (PMI) following percutaneous coronary intervention (PCI) is associated with adverse short- and long-term outcomes, and several morphological predictors of PMI have been studied. However, the determinants of PMI under novel anti-platelet therapy are not fully elucidated. METHODS AND RESULTS: PRASFIT-Elective is a multicenter, parallel-group study of PCI patients in non-acute settings receiving either prasugrel or clopidogrel in addition to aspirin...
June 12, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28614751/molecular-spectroscopic-and-thermodynamic-studies-on-the-interaction-of-anti-platelet-drug-ticlopidine-with-calf-thymus-dna
#20
Shumaila Afrin, Yusra Rahman, Tarique Sarwar, Mohammed Amir Husain, Abad Ali, Shamsuzzaman, Mohammad Tabish
Ticlopidine is an anti-platelet drug which belongs to the thienopyridine structural family and exerts its effect by functioning as an ADP receptor inhibitor. Ticlopidine inhibits the expression of TarO gene in S. aureus and may provide protection against MRSA. Groove binding agents are known to disrupt the transcription factor DNA complex and consequently inhibit gene expression. Understanding the mechanism of interaction of ticlopidine with DNA can prove useful in the development of a rational drug designing system...
June 11, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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