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Anti coagulants

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https://www.readbyqxmd.com/read/29458015/sulfenamide-and-sulfonamide-derivatives-of-metformin-can-exert-anti-coagulant-and-pro-fibrinolytic-properties
#1
Magdalena Markowicz-Piasecka, Kristiina M Huttunen, Łukasz Mateusiak, Elżbieta Mikiciuk-Olasik, Joanna Sikora
Type 2 diabetes mellitus (T2DM) is characterised not only by hyperglycaemia and insulin resistance but also an impaired balance between the processes of coagulation and fibrinolysis. The aim of this study was to examine the effects of metformin, a widely-used oral anti-diabetic drug, phenformin and eight sulfenamide and sulfonamide derivatives of metformin on several haemostasis parameters. Thrombin Time (TT) tests were performed according to the available commercial method. The activity of factor X was conducted based on deficient plasma factor X...
February 16, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29455405/bariatric-surgery-in-patients-on-chronic-anticoagulation-therapy
#2
Gautam Sharma, Zubaidah Nor Hanipah, Ali Aminian, Suriya Punchai, Emre Bucak, Philip R Schauer, Stacy A Brethauer
BACKGROUND: Perioperative management of chronically anti-coagulated patients undergoing bariatric surgery requires a balance of managing hemorrhagic and thromboembolic risks. The aim of this study is to evaluate the incidence of hemorrhagic complications and their management in chronically anticoagulated (CAT) patients undergoing bariatric surgery. METHODS: A retrospective review of CAT patients undergoing bariatric surgery at an academic center from 2008 to 2015 was studied...
February 17, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29447772/the-optimal-anti-coagulation-for-enhanced-risk-patients-post-catheter-ablation-for-atrial-fibrillation-ocean-trial
#3
Atul Verma, Andrew C T Ha, Paulus Kirchhof, Gerhard Hindricks, Jeff S Healey, Michael D Hill, Mukul Sharma, D George Wyse, Jean Champagne, Vidal Essebag, George Wells, Dhiraj Gupta, Hein Heidbuchel, Prashanthan Sanders, David H Birnie
BACKGROUND: The optimal long-term antithrombotic regimen for patients after successful catheter-based atrial fibrillation (AF) ablation is not well defined. Presently, practice variation exists, and the benefits of oral anticoagulation over antiplatelet therapy across the entire spectrum of stroke risk profile remain undefined in the postablation population. To date, there are no randomized trials to inform clinicians on this therapeutic question. OBJECTIVE: The objective was to assess whether rivaroxaban is superior to acetylsalicylic acid (ASA) in reducing the risk of clinically overt stroke, systemic embolism, or covert stroke among patients without apparent recurrent atrial arrhythmias for at least 1 year after their most recent AF ablation procedure...
March 2018: American Heart Journal
https://www.readbyqxmd.com/read/29445077/successful-external-cardioversion-via-fluoroscopic-electrode-positioning-in-patients-with-enlarged-trans-thoracic-diameter
#4
Koroush Khalighi, Amirsina Talebian, Rubinder Singh Toor, Seyed Abbas Mirabbasi
BACKGROUND Atrial fibrillation is the most common cardiac arrhythmia. It increases the risk of stroke by at least five-fold and is associated with higher risk for mortality and morbidity. Therefore, prompt diagnosis and treatment is crucial. In addition to anti-coagulation therapy, electrical and pharmacological cardioversion to restore sinus rhythm remains the standard of care. The most common and effective method for electrical cardioversion is achieved with placement of electrodes in the anteroposterior position...
February 15, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29444597/an-experimental-model-for-hypertensive-crises-emergencies-long-term-high-fat-diet-followed-by-acute-vasoconstriction-stress-on-spontaneously-hypertensive-rats
#5
Hong Liu, Wei-Wei Su, Chao-Feng Long, Wei-Jian Zhang, Pei-Bo Li, Zhong Wu, Yin-Yin Liao, Xuan Zeng, Tao-Bin Chen, Yu-Ying Zheng, Zeng-Hao Yan, Cong Bi, Hong-Liang Yao
Currently, the prevention and treatment of hypertensive crises especially when it occurs with serious adverse outcomes have led to worldwide controversy. Despite of clinical possibilities of multiple agents, clinical failures still occur frequently. Therefore, early evaluations and observations of different therapies on appropriate animals should be emphasized. In the present study, an animal model for hypertensive crises emergencies was firstly established and experimentally testified. Five-month-male spontaneously hypertensive rat was consecutively fed with 60%-Kcal fat diet for four, six, and eight weeks with body weight and blood pressure monitored every two weeks, and then followed by an acute vasoconstriction stress of 5-min ice-bath treatment in the 4-h time interval of two adrenaline injections (0...
January 1, 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29436624/clinical-verification-of-lou-type-warfarin-pharmacokinetic-dosing-algorithms-equation
#6
Jiangang Jiang, Ningning Ji, Jingliang Lan, Xiaoping Ge, Xiaoma Du
Warfarin is the most commonly used oral anti-coagulant in clinic practice. However, it is difficult to recommend the correct dosage due to its narrow therapeutic window. The aim of the present study was to verify the clinical value of the Lou type equation, using pharmacogenetics‑based warfarin dosing algorithms to appropriately predict the actual maintenance dose. A total of 87 Chinese Han patients who required treatment with warfarin were enrolled and randomly divided into the experimental and control groups...
February 6, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29434126/a-case-of-heart-failure-with-hyperthyroidism-demonstrating-discrepancy-between-the-clinical-course-and-b-type-natriuretic-peptide-levels
#7
Chiaki Kishida, Ryo Naito, Hiroki Kasuya, Tomohiro Kaneko, Kosuke Yabe, Midori Kakihara, Ryosuke Shimai, Hiroyuki Isogai, Dai Ozaki, Yuki Yasuda, Fuminori Odagiri, Tetsuro Miyazaki, Ken Yokoyama, Takashi Tokano, Hajime Koyano, Yuji Nakazato
A 35-year-old Japanese man was emergently admitted to our hospital with chief complaints of palpitation and dyspnea. He has been treated for Basedow's disease. He was diagnosed with acute decompensated heart failure, atrial fibrillation and thyrotoxicosis. We started anti-thyroid agents and a treatment for heart failure with beta blockers and diuretics under anti-coagulation therapy. His B-type natriuretic peptide levels remained high, although the heart failure had been compensated and the heart rate was well controlled while hyperthyroidism still existed...
February 9, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29432822/macromolecular-prodrugs-of-ribavirin-polymer-backbone-defines-blood-safety-drug-release-and-efficacy-of-anti-inflammatory-effects
#8
Kaja Zuwala, Camilla F Riber, Kaja Borup Løvschall, Anna H F Andersen, Lise Sørensen, Paulina Gajda, Martin Tolstrup, Alexander N Zelikin
Macromolecular (pro)drugs hold much promise as broad-spectrum antiviral agents as either microbicides or carriers for intracellular delivery of antiviral drugs. Intriguing opportunity exists in combining the two modes of antiviral activity in the same polymer structure such that the same polymer acts as a microbicide and also serves to deliver the conjugated drug (ribavirin) into the cells. We explore this opportunity in detail and focus on the polymer backbone as a decisive constituent of such formulations...
February 9, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29430453/anticoagulant-therapy-in-acute-respiratory-distress-syndrome
#9
REVIEW
Marta Camprubí-Rimblas, Neus Tantinyà, Josep Bringué, Raquel Guillamat-Prats, Antonio Artigas
Acute respiratory distress syndrome (ARDS) presents a complex pathophysiology characterized by pulmonary activated coagulation and reduced fibrinolysis. Despite advances in supportive care of this syndrome, morbidity and mortality remains high, leading to the need of novel therapies to combat this disease. Focus these therapies in the inhibition of ARDS development pathophysiology is essential. Beneficial effects of anticoagulants in ARDS have been proved in preclinical and clinical trials, thanks to its anticoagulant and anti-inflammatory properties...
January 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29429458/-burkholderia-cepacia-infection-in-children-a-clinical-analysis-of-16-cases
#10
Fang Peng, Li-Li Zhong, Xiao-Juan Lin, Min Chen, Miao Zhou
OBJECTIVE: To investigate the distribution characteristics and clinical features of Burkholderia cepacia infection in children. METHODS: A retrospective analysis was performed for the clinical data of 16 children with Burkholderia cepacia infection who were hospitalized between June 2012 and September 2017. RESULTS: All 16 children with Burkholderia cepacia infection were sporadic cases. A total of 16 strains of Burkholderia cepacia were isolated, among which 8 were detected by sputum culture, 5 were detected by blood culture, 2 were detected by tracheal intubation tip culture, and 1 was detected by lung biopsy culture...
February 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29428600/contraction-dependent-tgf-%C3%AE-1-activation-is-required-for-thrombin-induced-remodeling-in-human-airway-smooth-muscle-cells
#11
Zhi-Hui Yao, Hao-Jun Xie, Ya-Lu Yuan, Ya-Ting Huo, Jing Cao, Wen-Yan Lai, Rui-Jun Cai, Yuan-Xiong Cheng
AIMS: Thrombin is a serine proteinase that is not only involved in coagulation cascade, but also mediates a number of biological responses relevant to tissues repair, and induces bronchoconstriction. TGF-β plays a pivotal role in airway remodeling due to its effects on airway smooth muscle proliferation and extracellular matrix (ECM) deposition. Recently, bronchoconstriction itself is found to constitute a form of strain and is highly relevant to asthmatic airway remodeling. However, the underlying mechanisms remain unknown...
February 8, 2018: Life Sciences
https://www.readbyqxmd.com/read/29426709/diagnosis-and-treatment-of-undifferentiated-and-infectious-acute-diarrhea-in-the-adult-horse
#12
REVIEW
Sarah D Shaw, Henry Stämpfli
Acute, infectious, diarrhea in adult horses is a major cause of morbidity and is associated with numerous complications. Common causes include salmonellosis, clostridiosis, Coronavirus, and infection with Neorickettsia risticii (Potomac horse fever). Treatment is empirical and supportive until results of specific diagnostic tests are available. Supportive care is aimed at restoring hydration, correcting electrolyte imbalances, and limiting the systemic inflammatory response. The mainstays of therapy are intravenous fluid therapy, electrolyte supplementation where necessary, nonsteroidal anti-inflammatory agents, and nutritional support...
February 6, 2018: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/29421686/fabrication-of-anti-fouling-anti-bacterial-and-non-clotting-pvdf-membranes-through-one-step-outside-in-interface-segregation-strategy
#13
Tiantian Li, Fu Liu, Haibo Lin, Zhu Xiong, Hui Wang, Yun Zhong, Lingchao Xiang, Aiguo Wu
Herein we provide an "outside-in" interface segregation strategy to modify polyvinylidene fluoride (PVDF) membranes with anti-fouling, anti-bacterial and non-clotting performances for the first time. The coagulation bath composed of DMAc, water and synthesized copolymer was used to solidify and modify membrane during phase inversion process. The functional polymer e.g. poly(vinylpyrrolidone-vinyltriethoxysilane) (PVP-VTES), poly(dimethylamino ethyl methacrylate-vinyltriethoxysilane) (PDMAEMA-VTES), poly(acrylic acid-sodium p-styrene sulfonate-vinyltriethoxysilane) (PAA-SSNa-VTES) was segregated into membrane interface from outside coagulation bath...
February 2, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29421063/targeted-delivery-of-snx-2112-by-polysaccharide-modified-graphene-oxide-nanocomposites-for-treatment-of-lung-cancer
#14
Xuan Liu, Xiaozhen Cheng, Fengzhe Wang, Longbao Feng, Yu Wang, Yanfang Zheng, Rui Guo
Graphene oxide (GO) is a promising material for biomedical applications, particularly in drug delivery, due to its exceptional chemical and physical properties. In this work, an innovative GO-based carrier was developed by modifying GO with chitosan (CHI) to improve the biocompatibility, and followed by the conjugation of hyaluronic acid (HA), the target ligand for CD44, to realize the specific recognition of tumor cells and improve the efficiency of anti-tumor drug delivery. The resulting product GO-CHI-HA was loaded with an anti-cancer drug SNX-2112, which is the Hsp90 inhibitor...
April 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29419481/noninvasive-whole-body-imaging-of-phosphatidylethanolamine-as-a-cell-death-marker-using-99mtc-duramycin-during-tnf-induced-sirs
#15
Tinneke Delvaeye, Leonie Wyffels, Steven Deleye, Kelly Lemeire, Amanda Gonçalves, Elke Decrock, Steven Staelens, Luc Leybaert, Peter Vandenabeele, Dmitri Krysko
Systemic inflammatory response syndrome (SIRS) is an inflammatory state affecting the whole body. It is associated with the presence of pro- and anti-inflammatory cytokines in serum, including tumor necrosis factor (TNF). TNF has multiple effects and leads to cytokine production, leukocyte infiltration, blood pressure reduction and coagulation, thereby contributing to tissue damage and organ failure. A sterile mouse model of sepsis, TNF-induced SIRS, was used to visualize the temporal and spatial distribution of damage in susceptible tissues during SIRS...
February 1, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29410404/a-microengineered-vascularized-bleeding-model-that-integrates-the-principal-components-of-hemostasis
#16
Yumiko Sakurai, Elaissa T Hardy, Byungwook Ahn, Reginald Tran, Meredith E Fay, Jordan C Ciciliano, Robert G Mannino, David R Myers, Yongzhi Qiu, Marcus A Carden, W Hunter Baldwin, Shannon L Meeks, Gary E Gilbert, Shawn M Jobe, Wilbur A Lam
Hemostasis encompasses an ensemble of interactions among platelets, coagulation factors, blood cells, endothelium, and hemodynamic forces, but current assays assess only isolated aspects of this complex process. Accordingly, here we develop a comprehensive in vitro mechanical injury bleeding model comprising an "endothelialized" microfluidic system coupled with a microengineered pneumatic valve that induces a vascular "injury". With perfusion of whole blood, hemostatic plug formation is visualized and "in vitro bleeding time" is measured...
February 6, 2018: Nature Communications
https://www.readbyqxmd.com/read/29408399/molecular-characterization-of-a-tissue-factor-gene-from-ayu-a-pro-inflammatory-mediator-via-regulating-monocytes-macrophages
#17
Ying-Jun Ning, Xin-Jiang Lu, Jiong Chen
Tissue factor (TF) plays an important role in the host's immune system as the principal initiator of coagulation. However, the precise function of TF in teleosts remains unclear. We determined the cDNA sequence of TF from ayu Plecoglossus altivelis (PaTF). The PaTF transcript was expressed in all tested tissues, and changes in expression were observed in tissues and monocytes/macrophages (MO/MФ) upon infection with Vibrio anguillarum. PaTF was prokaryotically expressed and purified to prepare anti-PaTF antibodies...
February 2, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29407622/simple-method-for-removing-doacs-from-plasma-samples
#18
T Exner, N Michalopoulos, J Pearce, R Xavier, M Ahuja
AIM: To evaluate a simple method using an adsorbent product (DOAC Stop) for extracting direct oral anti-coagulants (DOACs) from plasmas. METHOD: DOAC Stop was tested on normal and a range of abnormal plasmas initially using activated partial thromboplastin time (APTT) tests and a more DOAC-sensitive Russells viper venom-based clotting test (DOAC Test). Further tests for prothrombin time/International Normalized Ratio (PT/INR), lupus anticoagulants, activated protein C (APC) resistance, antithrombin, plasminogen, protein C and S were carried out on various patient samples...
January 30, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29406998/prophylactic-use-of-colchicine-in-preventing-radiation-induced-coronary-artery-disease
#19
T O'Herron, J Lafferty
Radiation therapy is one of the primary treatments in fighting breast cancer, one of the most common cancers in the US. One of the dose limiting factors of this therapy is radiation induced heart damage that results from mediastinal radiation. Recently statins, a medication typically used to lower cholesterol levels, have been suggested as a prophylactic treatment to potentially mitigate this process. Similarly, we hypothesized whether colchicine, an anti-inflammatory medication that is presently used in the treatment of gout and pericarditis, might be used to prevent coronary artery disease induced by radiation therapy...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29404874/direct-oral-anti-coagulants-compared-to-vitamin-k-antagonists-in-cardioversion-of-atrial-fibrillation-an-updated-meta-analysis
#20
REVIEW
Natale Daniele Brunetti, Nicola Tarantino, Luisa De Gennaro, Michele Correale, Francesco Santoro, Matteo Di Biase
Pharmacological or electrical cardioversion allows immediate symptoms improvement in the setting of paroxysmal or persistent atrial fibrillation (AF), although the periprocedural risk of systemic embolism should be considered. Recently, there was a great interest on the safety and efficacy of direct oral anticoagulants (DOACs) when used for the cardioversion of non-valvular AF. We performed a random-effects meta-analysis of patients undergoing both electrical and pharmacologic cardioversion for non-valvular AF in the RE-LY, ROCKET-AF, ARISTOTLE, ENGAGE AF-TIMI 48, X-VeRT, ENSURE-AF, and EMANATE trials...
February 5, 2018: Journal of Thrombosis and Thrombolysis
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