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Target-specific anticoagulant

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https://www.readbyqxmd.com/read/28500685/analysis-of-serum-markers-of-cellular-immune-activation-in-patients-with-bullous-pemphigoid
#1
Katja Bieber, Anna Lara Ernst, Stefan Tukaj, Maike M Holtsche, Enno Schmidt, Detlef Zillikens, Ralf J Ludwig, Michael Kasperkiewicz
Experimental models of bullous pemphigoid (BP), the most frequent subepidermal autoimmune bullous disease, revealed that the immune response leading to blister formation represents an incompletely understood complex process involving different inflammatory cells. In contrast to previous reports commonly focusing on limited molecular and cellular phenotypes of the disease, the aim of this study was to investigate a broad spectrum of markers of cellular immune activation in patients with BP. We found that serum levels of soluble CD4, myeloperoxidase, S100A12, eosinophil cationic protein, and soluble P-selectin were significantly elevated in patients with active BP compared with normal controls...
May 13, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28492296/italian-consensus-in-neuroradiological-anaesthesia-icona-managing-anaesthesia-during-endovascular-procedures
#2
Carlo A Castioni, Andrea Amadori, Federico Bilotta, Moreno Bolzon, Edoardo Barboni, Anselmo Caricato, Guido Dall'acqua, Francesco DI Paola, Andrea Forastieri Molinari, Paolo Gritti, Italia LA Rosa, Marcello Longo, Carla Maglione, Pietro Martorano, Marina Munari, Valerio Perotti, Frank Rasulo, Maria Ruggiero, Antonio Santoro, Luigia Scudeller, Miriam Tumolo, Anna T Mazzeo
Anaesthetic management of patients undergoing endovascular procedures for treating intracranial aneurysms or cerebrovascular malformations must consider a number of specific challenges, in addition to those associated with anaesthesia for other specialties. In addition to maintenance of physiological stability, manipulation of systemic and cerebral haemodynamic parameters may be required to treat any sudden unexpected catastrophic neurological events. A multidisciplinary group including neuro- and pediatric anaesthesiologists, interventional neuroradiologists, neurosurgeons, and a clinical methodologist contributed to this document...
May 11, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28471371/the-reversal-of-direct-oral-anticoagulants-in-animal-models
#3
Markus Honickel, Necib Akman, Oliver Grottke
Several direct oral anticoagulants (DOACs), including direct thrombin and factor Xa inhibitors, have been approved as alternatives to vitamin K antagonist (VKA) anticoagulants. As with any anticoagulant, DOAC use carries a risk of bleeding. In patients with major bleeding or needing urgent surgery, reversal of DOAC anticoagulation may be required, presenting a clinical challenge. The optimal strategy for DOAC reversal is being refined, and may include use of hemostatic agents such as prothrombin complex concentrates (PCCs; a source of concentrated clotting factors), or DOAC-specific antidotes (which bind their target DOAC to abrogate its activity)...
April 4, 2017: Shock
https://www.readbyqxmd.com/read/28450652/concordance-between-reticulocyte-hemoglobin-equivalent-and-reticulocyte-hemoglobin-content-in-ckd-patients-undergoing-hemodialysis
#4
Riadi Wirawan, Ailinda Theodora Tedja, Fify Henrika, Aida Lydia
AIM: to evaluate the correlation and the concordance between reticulocyte hemoglobin equivalent (RET-He) and reticulocyte hemoglobin content (CHr) as well as to obtain the cut-off value of RET-He as the target of iron supplementation in chronic kidney disease (CKD) patients undergoing hemodialysis. METHODS: a cross-sectional study was performed using K3EDTA-anticoagulated peripheral blood samples collected from 106 CKD patients undergoing routine hemodialysis. The samples were then analyzed using both Sysmex XN-2000 and Siemens ADVIA 2120i for RET-He and CHr analysis...
January 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/28448204/future-research-opportunities-in-peri-prosthetic-joint-infection-prevention
#5
Elie Berbari, John Segreti, Javad Parvizi, Sandra I Berríos-Torres
Peri-prosthetic joint infection (PJI) is a serious complication of prosthetic joint arthroplasty. A better understanding and reversal of modifiable risk factors may lead to a reduction in the incidence of incisional (superficial and deep) and organ/space (e.g., PJI) surgical site infections (SSI). Recently, the Centers for Disease Control and Prevention (CDC) and the Healthcare Infection Control Practices Advisory Committee (HICPAC) published the Guideline for Prevention of Surgical Site Infection. This targeted update applies evidence-based methodology in drafting recommendations for potential strategies to reduce the risk of SSI both across surgical procedures and specifically in prosthetic joint arthroplasty...
April 27, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28413976/laboratory-monitoring-or-measurement-of-direct-oral-anticoagulants-doacs-advantages-limitations-and-future-challenges
#6
Emmanuel J Favaloro, Leonardo Pasalic, Jennifer Curnow, Giuseppe Lippi
BACKGROUND: The Direct Oral Anticoagulants (DOACs) represent a new generation of antithrombotic agents, providing direct inhibition of either thrombin (factor IIa; FIIa) or activated factor X (FXa). Around the globe, their use is progressively rising, as these new agents replace the historical anticoagulants (heparin and vitamin K antagonists including warfarin) for various clinical conditions in medical practice. Other acronyms used to designate DOACs include TSOAC (target specific oral anticoagulants) and NOAC (novel; or non-vitamin K antagonist oral anticoagulants)...
April 17, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28412907/review-of-the-pharmacology-of-the-emerging-possibilities-of-the-direct-oral-anticoagulants-reversal
#7
Matej Samos, Lucia Stanciakova, Ingrid Skornova, Tomas Bolek, Frantisek Kovar, Jan Stasko, Peter Galajda, Marian Mokan, Peter Kubisz
BACKGROUND: Direct oral anticoagulants (DOACs) offer consistent and predictable anticoagulation, oral administration with good patient compliance and a good safety profile. Dabigatran - a direct thrombin inhibitor, apixaban and rivaroxaban - direct factor Xa inhibitors are now largely used for anticoagulation in patients with non-valvular atrial fibrillation and in patients with venous thromboembolism. These agents have emerged as an expediential clinical choice in long-term anticoagulation for an increasing number of patients...
April 13, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28400185/purification-and-characterization-of-cc-lec-c-type-lactose-binding-lectin-a-platelet-aggregation-and-blood-clotting-inhibitor-from-cerastes-cerastes-venom
#8
Saoud Samah, Chérifi Fatah, Berjeaud Jean-Marc, Kellou-Taîri Safia, Laraba-Djebari Fatima
In this study, we reported for the first time the biochemical and structural characterization of Cc-Lec, a C-type lectin purified from Cerastes cerastes venom by affinity chromatography. This lectin was homogeneous by SDS-PAGE, and was shown to be a 34 271.59Da polypeptide by Electrospray mass spectrometry MS-ES-TOF. Its identified sequence of 160 amino acids corresponding to one subunit, revealed a high identity with other related proteins. Cc-Lec modeled 3D structure appeared as homodimer cross-linked by one disulfide bridge...
April 8, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28376529/role-of-direct-oral-anticoagulants-in-the-management-of-anticoagulation
#9
Rajiv N Thakkar, Suman W Rathbun, Scott M Wright
For decades, vitamin K antagonists (VKAs) have been the oral treatment of choice for many thromboembolic conditions. The limitations of VKAs include the need for monitoring through blood testing, drug interactions, and narrow therapeutic windows. These shortcomings have led to the development of direct oral anticoagulants. These new oral agents act on specific targets in the coagulation cascade (eg, factor Xa, thrombin) and negate some of the shortcomings of VKAs. This article reviews the roles of dabigatran, rivaroxaban, apixaban, and edoxaban in stroke prevention in nonvalvular atrial fibrillation, for prevention of venous thromboembolism after orthopedic surgery, and in the treatment of venous thromboembolism...
April 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28362634/site-selective-conjugation-of-an-anticoagulant-aptamer-to-recombinant-albumins-and-maintenance-of-neonatal-fc-receptor-binding
#10
Julie Schmøkel, Anders Voldum, Georgia Tsakiridou, Matthias Kuhlmann, Jason Cameron, Esben S Sørensen, Jesper Wengel, Kenneth A Howard
Aptamers are an attractive molecular medicine that offers high target specificity. Nucleic acid-based aptamers, however, are prone to nuclease degradation and rapid renal excretion that require blood circulatory half-life extension enabling technologies. The long circulatory half-life, predominately facilitated by engagement with the cellular recycling neonatal Fc receptor (FcRn), and ligand transport properties of albumin promote it as an attractive candidate to improve the pharmacokinetic profile of aptamers...
May 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28349046/venous-thromboembolism-in-critical-illness-and-trauma-pediatric-perspectives
#11
REVIEW
Ranjit S Chima, Sheila J Hanson
Critically ill children and those sustaining severe traumatic injuries are at higher risk for developing venous thromboembolism (VTE) than other hospitalized children. Multiple factors including the need for central venous catheters, immobility, surgical procedures, malignancy, and dysregulated inflammatory state confer this increased risk. As well as being at higher risk of VTE, this population is frequently at an increased risk of bleeding, making the decision of prophylactic anticoagulation even more nuanced...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28339096/pathogenesis-and-management-of-antiphospholipid-syndrome
#12
REVIEW
Deepa R J Arachchillage, Mike Laffan
Antiphospholipid antibodies are a heterogeneous group of autoantibodies that have clear associations with thrombosis and pregnancy morbidity, and which together constitute the 'antiphospholipid syndrome' (APS). However, the pathophysiology of these complications is not well understood and their heterogeneity suggests that more than one pathogenic process may be involved. Diagnosis remains a combination of laboratory analysis and clinical observation but there have been significant advances in identifying specific pathogenic features, such as domain I-specific anti-β2-glycoprotein-I antibodies...
March 24, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28302764/-18-f-gp1-a-novel-fluorine-18-labeled-tracer-designed-for-pet-imaging-of-thrombi-with-high-detection-sensitivity-and-low-background
#13
Jessica Lohrke, Holger Siebeneicher, Markus Berger, Michael Reinhardt, Mathias Berndt, Andre Mueller, Marion Zerna, Norman Koglin, Felix Oden, Marcus Bauser, Matthias Friebe, Ludger M Dinkelborg, Joachim Huetter, Andrew W Stephens
Thromboembolic diseases such as myocardial infarction, stroke, transient ischemic attacks and pulmonary embolism are major causes of morbidity and mortality worldwide. GPIIb/IIIa is the key receptor involved in platelet aggregation and is a validated target for therapeutic approaches and diagnostic imaging. The aim of this study was to develop and characterize a specific small molecule tracer for positron emission tomography (PET) imaging that binds with high affinity to GPIIb/IIIa receptors and has suitable pharmacokinetic properties to overcome limitations of previous approaches...
March 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28265127/management-of-cavoatrial-deep-venous-thrombosis-incorporating-new-strategies
#14
REVIEW
Mohamed A Zayed, Gayan S De Silva, Raja S Ramaswamy, Luis A Sanchez
Cavoatrial deep venous thrombosis (DVT) is diagnosed with increasing prevalence. It can be managed medically with anticoagulation or with directed interventions aimed to efficiently reduce the thrombus burden within the target venous segment. The type of management chosen depends greatly on the etiology and chronicity of the thrombosis, existing patient comorbidities, and the patient's tolerance to anticoagulants and thrombolytic agents. In addition to traditional percutaneous catheter-based pharmacomechanical thrombolysis, other catheter-based suction thrombectomy techniques have emerged in recent years...
March 2017: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/28255434/efficacy-and-safety-of-the-target-specific-oral-anticoagulants-for-stroke-prevention-in-atrial-fibrillation-the-real-life-evidence
#15
REVIEW
Vincenzo Russo, Anna Rago, Riccardo Proietti, Federica Di Meo, Andrea Antonio Papa, Paolo Calabrò, Antonio D'Onofrio, Gerardo Nigro, Ahmed AlTurki
The aim of our article is to provide a concise review for clinicians entailing the main studies that evaluated the efficacy and safety of target-specific oral anticoagulants (TSOAs) for thromboembolic stroke prevention in the real-world setting. Atrial fibrillation (AF) is one of the most common supraventricular arrhythmias that requires anticoagulation therapy to prevent stroke and systemic embolism. TSOAs, dabigatran, apixaban and rivaroxaban have become available as an alternative to warfarin anticoagulation in nonvalvular atrial fibrillation (NVAF)...
February 2017: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/28222250/long-term-treatment-of-cancer-associated-thrombosis-the-choice-of-the-optimal-anticoagulant
#16
REVIEW
I Elalamy, I Mahé, W Ageno, G Meyer
Patients with cancer-associated thrombosis (CAT) carry a higher risk of recurrence, bleeding and mortality as compared with non-cancer patients. The specific profiles of cancer patients, combining frequent co-morbidities, the use of anti-tumoral therapies and the cancer progression itself, represent a major therapeutic challenge for choosing a long-term anticoagulant treatment. This review discusses the practical basis of making a choice between the available drugs for a long-term antithrombotic strategy, linked to their pharmacology, mechanism of action, evidence of clinical benefits, and advantages and limitations in such a complex clinical context...
May 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28210634/potential-of-a-pharmacogenetic-guided-algorithm-to-predict-optimal-warfarin-dosing-in-a-high-risk-hispanic-patient-role-of-a-novel-nqo1-2-polymorphism
#17
Dagmar F Hernandez-Suarez, Karla Claudio-Campos, Javier E Mirabal-Arroyo, Bianca A Torres-Hernández, Angel López-Candales, Kyle Melin, Jorge Duconge
Deep abdominal vein thrombosis is extremely rare among thrombotic events secondary to the use of contraceptives. A case to illustrate the clinical utility of ethno-specific pharmacogenetic testing in warfarin management of a Hispanic patient is reported. A 37-year-old Hispanic Puerto Rican, non-gravid female with past medical history of abnormal uterine bleeding on hormonal contraceptive therapy was evaluated for abdominal pain. Physical exam was remarkable for unspecific diffuse abdominal tenderness, and general initial laboratory results-including coagulation parameters-were unremarkable...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28178413/spontaneous-intracerebral-hemorrhage-management
#18
REVIEW
Jun Yup Kim, Hee-Joon Bae
Spontaneous non-traumatic intracerebral hemorrhage (ICH) remains a significant cause of mortality and morbidity throughout the world. To improve the devastating course of ICH, various clinical trials for medical and surgical interventions have been conducted in the last 10 years. Recent large-scale clinical trials have reported that early intensive blood pressure reduction can be a safe and feasible strategy for ICH, and have suggested a safe target range for systolic blood pressure. While new medical therapies associated with warfarin and non-vitamin K antagonist oral anticoagulants have been developed to treat ICH, recent trials have not been able to demonstrate the overall beneficial effects of surgical intervention on mortality and functional outcomes...
January 2017: Journal of Stroke
https://www.readbyqxmd.com/read/28164512/critical-deviations-of-ionized-calcium-measurements-when-using-blood-gas-analyzers-to-monitor-citrate-dialysis
#19
Thorsten Feldkamp, Norbert Weiler, Michael Marx, Peter B Luppa, Ralf Junker
BACKGROUND: During the course of acute kidney injury (AKI) patients may require renal replacement therapy (RRT). The preferred therapeutic measure for such patients is continuous RRT (CRRT). Anticoagulation is required to prevent clotting of the extracorporeal circuit. The actual KDIGO guidelines recommend citrate as the first line anticoagulant. METHODS: Citrate dose infused into the extracorporeal circuit should achieve an extracorporeal calcium concentration of 0...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28154101/cardioembolic-stroke
#20
REVIEW
Hooman Kamel, Jeff S Healey
Cardiac embolism accounts for an increasing proportion of ischemic strokes and might multiply several-fold during the next decades. However, research points to several potential strategies to stem this expected rise in cardioembolic stroke. First, although one-third of strokes are of unclear cause, it is increasingly accepted that many of these cryptogenic strokes arise from a distant embolism rather than in situ cerebrovascular disease, leading to the recent formulation of embolic stroke of undetermined source as a distinct target for investigation...
February 3, 2017: Circulation Research
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