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Anti coagulants

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https://www.readbyqxmd.com/read/28333829/acute-traumatic-coagulopathy-the-elephant-in-a-room-of-blind-scientists
#1
Michael A Meledeo, Maryanne C Herzig, James A Bynum, Xiaowu Wu, Anand K Ramasubramanian, Daniel N Darlington, Kristin M Reddoch, Andrew P Cap
Acute traumatic coagulopathy (ATC) is the failure of coagulation homeostasis that can rapidly arise following traumatic injury, hemorrhage, and shock; it is associated with higher injury severity, coagulation abnormalities, and increased blood transfusions. ATC has historically been defined by a prolonged prothrombin time (PT), although newer, more informative measurements of hemostatic function have been employed to improve diagnosis and support clinical decision making. The underlying biochemical mechanisms of and best practice therapeutics for ATC remain under active investigation because of its significant correlation to poor outcomes...
March 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28331172/an-anti-coagulation-conundrum-implantation-of-total-artificial-heart-in-a-patient-with-heparin-induced-thrombocytopenia-type-ii
#2
Theodore J Cios, Yuliana Salamanca-Padilla, Dmitri Guvakov
BACKGROUND Heparin-induced thrombocytopenia (HIT) is a rare but life-threatening complication of heparin administration. It can present a major clinical dilemma for physicians caring for patients requiring life-saving urgent or emergent cardiac surgery. Studies have been published examining the use of alternative anticoagulants for patients undergoing cardiopulmonary bypass (CPB), however, evidence does not clearly support any particular approach. Presently, there are no large-scale, prospective randomized studies examining the impact of alternative anticoagulants on clinical outcomes for HIT-positive patients requiring cardiac surgery...
March 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28330275/phytochemicals-of-moringa-oleifera-a-review-of-their-nutritional-therapeutic-and-industrial-significance
#3
REVIEW
Ramesh Kumar Saini, Iyyakkannu Sivanesan, Young-Soo Keum
Moringa oleifera Lam., also known as the 'drumstick tree,' is recognized as a vibrant and affordable source of phytochemicals, having potential applications in medicines, functional food preparations, water purification, and biodiesel production. The multiple biological activities including antiproliferation, hepatoprotective, anti-inflammatory, antinociceptive, antiatherosclerotic, oxidative DNA damage protective, antiperoxidative, cardioprotective, as well as folk medicinal uses of M. oleifera (MO) are attributed to the presence of functional bioactive compounds, such as phenolic acids, flavonoids, alkaloids, phytosterols, natural sugars, vitamins, minerals, and organic acids...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328682/early-tranexamic-acid-administration-ameliorates-the-endotheliopathy-of-trauma-and-shock-in-an-in-vitro-model
#4
Lawrence N Diebel, Jonathan V Martin, David M Liberati
BACKGROUND: Systemic vascular endothelial injury is a consequence of trauma-hemorrhagic shock (T/HS) which results in disturbances of coagulation, inflammation and endothelial barrier integrity. The effect of T/HS on the endothelium (Endotheliopathy of Trauma)[EoT] is of intense research interest and may lead to EoT directed therapies. Administration of tranexamic acid (TXA) in trauma patients is associated with a survival benefit and fewer complications if given early after injury. Mechanisms for this protective effect include the anti-fibrinolytic and anti-inflammatory effects of TXA...
March 21, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28322834/anti-human-cd14-monoclonal-antibody-improves-survival-following-sepsis-induced-by-endotoxin-but-not-following-polymicrobial-infection
#5
Masaki Nakamura, Takashi Takeuchi, Kamon Shirakawa, Shoji Furusako
Cluster of differentiation 14 (CD14), a pattern recognition receptor expressed on myeloid cells and a critical component of the innate immune system, mediates local and systemic host responses to gram-negative bacterial products, including lipopolysaccharide (LPS). Therefore, CD14 is an attractive target for development of sepsis therapies, and several monoclonal anti-CD14 antibodies have been reported. In this study, we prepared an anti-human CD14 monoclonal antibody, F1024-1-3, which suppressed LPS-induced upregulation of pro-inflammatory cytokines and an adhesion molecule in human peripheral mononuclear cells and human vascular endothelial cells...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28322423/uptake-of-non-vitamin-k-antagonist-oral-anti-coagulants-in-patients-with-atrial-fibrillation-a-prospective-cohort-study
#6
Matylda Zimny, Steffen Blum, Peter Ammann, Paul Erne, Giorgio Moschovitis, Marcello Di Valentino, Dipen Shah, Jürg Schläpfer, Cyrill Vogt, Alexandra Tabord, Michael Kühne, Christian Sticherling, Stefan Osswald, David Conen
AIMS: We aimed to assess the uptake of non-vitamin K antagonist oral anticoagulants (NOACs) among patients with atrial fibrillation between 2010 and 2015 in Switzerland. METHODS: We performed a prospective observational cohort study. At the baseline examination and during yearly follow-ups, we used questionnaires to obtain information about clinical characteristics and antithrombotic treatment. Stroke risk was assessed using the CHA2DS2-VASc score. RESULTS: 1545 patients were enrolled across seven centres in Switzerland...
March 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28316335/complement-in-anca-associated-vasculitis-mechanisms-and-implications-for-management
#7
REVIEW
Min Chen, David R W Jayne, Ming-Hui Zhao
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a group of potentially life-threatening autoimmune diseases. The main histological feature in the kidneys of patients with AAV is pauci-immune necrotizing crescentic glomerulonephritis with little immunoglobulin and complement deposition in the glomerular capillary walls. The complement system was not, therefore, initially thought to be associated with the development of AAV. Accumulating evidence from animal models and clinical observations indicate, however, that activation of the complement system - and the alternative pathway in particular - is crucial for the development of AAV, and that the complement activation product C5a has a central role...
March 20, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28315166/effects-of-thromboprophylactic-doses-of-apixaban-and-rivaroxaban-on-coagulation-and-thrombin-generation-in-association-with-total-hip-replacement
#8
Tuukka A Helin, Lauri Virtanen, Mikko Manninen, Jarkko Leskinen, Juhana Leppilahti, Lotta Joutsi-Korhonen, Riitta Lassila
Factor Xa inhibitors (FXaI) apixaban and rivaroxaban are used for thromboprophylaxis after major elective orthopaedic surgery. Because few patient sample studies exist, we postoperatively assessed patients undergoing unilateral total hip arthroplasty, including 22 treated with apixaban (2.5 mg BID) and 20 treated with rivaroxaban (10 mg OD). We collected blood samples before and 3 h after drug intake at 4 time points, preoperatively, as well as on day 1, week 1 (day 2-8) and day 28 post-operation. APTT and PT were immediately analysed...
March 17, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28314209/pharmaceuticals-removal-and-microbial-community-assessment-in-a-continuous-fungal-treatment-of-non-sterile-real-hospital-wastewater-after-a-coagulation-flocculation-pretreatment
#9
J A Mir-Tutusaus, E Parladé, M Llorca, M Villagrasa, D Barceló, S Rodriguez-Mozaz, M Martinez-Alonso, N Gaju, G Caminal, M Sarrà
Hospital wastewaters are a main source of pharmaceutical active compounds, which are usually highly recalcitrant and can accumulate in surface and groundwater bodies. Fungal treatments can remove these contaminants prior to discharge, but real wastewater poses a problem to fungal survival due to bacterial competition. This study successfully treated real non-spiked, non-sterile wastewater in a continuous fungal fluidized bed bioreactor coupled to a coagulation-flocculation pretreatment for 56 days. A control bioreactor without the fungus was also operated and the results were compared...
March 8, 2017: Water Research
https://www.readbyqxmd.com/read/28303661/immunological-and-physiological-observations-in-baboons-with-life-supporting-genetically-engineered-pig-kidney-grafts
#10
Hayato Iwase, Hidetaka Hara, Mohamed Ezzelarab, Tao Li, Zhongqiang Zhang, Bingsi Gao, Hong Liu, Cassandra Long, Yi Wang, Amy Cassano, Edwin Klein, Carol Phelps, David Ayares, Abhinav Humar, Martin Wijkstrom, David K C Cooper
BACKGROUND: Genetically engineered pigs could provide a source of kidneys for clinical transplantation. The two longest kidney graft survivals reported to date have been 136 and 310 days, but graft survival >30 days has been unusual until recently. METHODS: Donor pigs (n=4) were on an α1,3-galactosyltransferase gene-knockout (GTKO)/human complement regulatory protein (CD46) background (GTKO/CD46). In addition, the pigs were transgenic for at least one human coagulation regulatory protein...
March 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28303603/human-il-6-il-17-il-1%C3%AE-and-tnf-%C3%AE-differently-regulate-the-expression-of-pro-inflammatory-related-genes-tissue-factor-and-swine-leukocyte-antigen-class-i-in-porcine-aortic-endothelial-cells
#11
Hanchao Gao, Lu Liu, Yanli Zhao, Hidetaka Hara, Pengfei Chen, Jia Xu, Jia Tang, Ling Wei, Zesong Li, David K C Cooper, Zhiming Cai, Lisha Mou
BACKGROUND: Pro-inflammatory cytokines play important pathological effects in various diseases and allotransplantation; however, their pathological role in xenotransplantation remains elusive. In pig-to-human cell or organ transplantation, whether porcine cells or organs are activated by human cytokines or not as an important question needs to be investigated. METHODS: We investigated the effect of human IL-6, IFN-γ, IL-17, IL-1β, and TNF-α in xenotransplantation using several in vitro models and porcine aortic endothelial cells (PAECs) as target cells...
March 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28302338/-laboratory-diagnosis-of-antiphospholipid-syndrome-from-criteria-to-practice
#12
V Joste, M-A Dragon-Durey, L Darnige
The antiphospholipid syndrome is a bioclinical entity defined by thrombosis and/or obstetrical complications in the presence, at least 12 weeks apart, of antiphospholipid antibodies detected by coagulation test (lupus anticoagulant) or immunological assays (anticardiolipin, anti-β2-glycoprotein I antibodies). Biological markers' improvement such as anti-phosphatidylserine/prothrombin and biological score should allow better patients' management and preventive therapeutic for thrombosis and obstetrical complications...
March 14, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28294424/therapeutic-regulation-of-systemic-inflammation-in-xenograft-recipients
#13
Hayato Iwase, Hong Liu, Tao Li, Zhongquiang Zhang, Bingsi Gao, Hidetaka Hara, Martin Wijkstrom, Cassandra Long, Ryan Saari, David Ayares, David K C Cooper, Mohamed B Ezzelarab
Inflammation is known to preclude tolerance after transplantation. We have previously shown that systemic inflammation in xenograft recipients (SIXR) precedes activation of coagulation in the absence of T cell responses. Accordingly, SIXR may amplify innate and adaptive immune responses against xenografts after pig-to-primate xenotransplantation, even with efficient immunosuppressive therapy. We evaluated the impact of anti-inflammatory agents on pro-inflammatory cytokines and chemokines in pig artery patch and heart xenograft recipients...
March 12, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28294045/dendrimers-effects-on-the-immune-system-insights-into-toxicity-and-therapeutic-utility
#14
Marina A Dobrovolskaia
BACKGROUND: Dendrimers are hyperbranched polymeric nanomaterials increasingly used in research, industrial and biomedical applications. Establishing safety profile of these particles includes an understanding of their interactions with blood components and the immune system. METHOD: Herein I review the literature demonstrating how tuning dendrimer physicochemical properties influence their interaction with erythrocytes, platelets, plasma proteins, complement and coagulation systems...
March 9, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28292566/impact-of-anticoagulation-in-elderly-patients-with-pulmonary-embolism-that-undergo-ivc-filter-placement-a-retrospective-cohort-study
#15
John M Falatko, Bhavinkumar Dalal, Lihua Qu
BACKGROUND: Anticoagulation is the primary treatment for pulmonary embolism (PE). Inferior vena cava (IVC) filters are an adjunctive intervention to prevent recurrent pulmonary embolism. Long-term outcomes in elderly patients with contraindications to anticoagulation after IVC filter placement for prevention of recurrent pulmonary embolism have yet to be assessed. MATERIALS AND METHODS: Patients ≥60years of age, that had an IVC filter placed between January 1st, 2008 and February 2nd, 2013, with a primary diagnosis of pulmonary embolism, were included...
February 28, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28283876/purification-of-serine-protease-from-polychaeta-lumbrineris-nipponica-and-assessment-of-its-fibrinolytic-activity
#16
Seung Ju Yeon, Goo Yong Chung, Jae Sang Hong, Jin Ha Hwang, Hwa Sung Shin
Ischemic stroke and cardiovascular disease can occur from blockage of blood vessels by fibrin clots formed naturally in the body. Therapeutic drugs of anticoagulant or thrombolytic agents have been studied; however, various problems have been reported such as side effects and low efficacy. Thus, development of new candidates that are more effective and safe is necessary. The objective of this study is to evaluate fibrinolytic activity, anti-coagulation, and characterization of serine protease purified from Lumbrineris nipponica, polychaeta, for new thrombolytic agents...
March 10, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28283738/anti-inflammatory-effect-of-factor-xa-inhibitors-in-japanese-patients-with-atrial-fibrillation
#17
Hiromasa Katoh, Tsuyoshi Nozue, Ichiro Michishita
Activated factor-X (FXa) plays an important role not only in the coagulation cascade, but also in pro-inflammatory responses. However, few data exist regarding the anti-inflammatory effect of FXa inhibitors in clinical practice. The aim of this study was to evaluate the anti-inflammatory and anti-atherosclerotic effects of FXa inhibitors in Japanese patients with non-valvular atrial fibrillation (NVAF). Eighty-three patients with NVAF were treated with FXa inhibitors from March 2013 to March 2015 at our institution...
March 10, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28279217/hypofibrinolysis-in-diabetes-a-therapeutic-target-for-the-reduction-of-cardiovascular-risk
#18
REVIEW
Katherine Kearney, Darren Tomlinson, Kerrie Smith, Ramzi Ajjan
An enhanced thrombotic environment and premature atherosclerosis are key factors for the increased cardiovascular risk in diabetes. The occlusive vascular thrombus, formed secondary to interactions between platelets and coagulation proteins, is composed of a skeleton of fibrin fibres with cellular elements embedded in this network. Diabetes is characterised by quantitative and qualitative changes in coagulation proteins, which collectively increase resistance to fibrinolysis, consequently augmenting thrombosis risk...
March 9, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28264594/chronic-subdural-haematomas-a-single-centre-experience-developing-an-integrated-care-pathway
#19
Smita Bapat, Jonathan Shapey, Ahmed Toma, Louise Platt, Astri Maria Valpuri Luoma
OBJECTIVE: To improve quality of care for patients presenting with chronic subdural haematoma (CSDH) by introducing a multi-disciplinary integrated care pathway. SUMMARY BACKGROUND: CSDH is a common neurological condition. Incidence rises with age and currently affects around 58/100 000 people over 70 years. Six-month mortality is high (26%), however integrated care pathways have been shown to improve patient outcomes in other surgical subspecialties. MATERIALS AND METHODS: A baseline retrospective audit completed in 2012 identified areas for improvement in patient management...
March 6, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28262230/placental-hemostasis-and-sterile-inflammation-new-insights-into-gestational-vascular-disease
#20
Shrey Kohli, Berend Isermann
Activation of the coagulation and inflammatory systems are physiologically occurring during pregnancy. However, excess activation of either system is well documented in gestational vascular diseases (GVD). GVD are placenta-mediated pregnancy complications and a major cause of feto-maternal morbidity and mortality. The causal relevance of excess coagulation and inflammatory responses for GVD remains largely unknown. Deciphering the causal relationship of excess coagulation and inflammation in GVD may allow conceptualizing new therapeutic approaches to combat GVD...
March 2017: Thrombosis Research
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