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https://www.readbyqxmd.com/read/29353071/effects-of-warfarin-on-biological-processes-other-than-haemostasis-a-review
#1
REVIEW
Aleksandra Popov Aleksandrov, Ivana Mirkov, Marina Ninkov, Dina Mileusnic, Jelena Demenesku, Vesna Subota, Dragan Kataranovski, Milena Kataranovski
Warfarin is the world's most widely used anticoagulant drug. Its anticoagulant activity is based on the inhibition of the vitamin K-dependent (VKD) step in the complete synthesis of a number of blood coagulation factors that are required for normal blood coagulation. Warfarin also affects synthesis of VKD proteins not related to haemostasis including those involved in bone growth and vascular calcification. Antithrombotic activity of warfarin is considered responsible for some aspects of its anti-tumour activity of warfarin...
January 15, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29352150/identification-and-quantification-of-plasma-calciprotein-particles-with-distinct-physical-properties-in-patients-with-chronic-kidney-disease
#2
Yutaka Miura, Yoshitaka Iwazu, Kazuhiro Shiizaki, Tetsu Akimoto, Kazuhiko Kotani, Masahiko Kurabayashi, Hiroshi Kurosu, Makoto Kuro-O
Calciprotein particles (CPP) are solid-phase calcium-phosphate bound to serum protein fetuin-A and dispersed as colloids in the blood. Recent clinical studies indicated that serum CPP levels were increased with decline of renal function and associated with inflammation and vascular calcification. However, CPP assays used in these studies measured only a part of CPP over a certain particle size and density. Here we show that such CPP are mostly artifacts generated during processing of serum samples in vitro...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29349709/the-host-response-in-critically-ill-sepsis-patients-on-statin-therapy-a-prospective-observational-study
#3
Maryse A Wiewel, Brendon P Scicluna, Lonneke A van Vught, Arie J Hoogendijk, Aeilko H Zwinderman, René Lutter, Janneke Horn, Olaf L Cremer, Marc J Bonten, Marcus J Schultz, Tom van der Poll
BACKGROUND: Statins can exert pleiotropic anti-inflammatory, vascular protective and anticoagulant effects, which in theory could improve the dysregulated host response during sepsis. We aimed to determine the association between prior statin use and host response characteristics in critically ill patients with sepsis. METHODS: We performed a prospective observational study in 1060 patients admitted with sepsis to the mixed intensive care units (ICUs) of two hospitals in the Netherlands between January 2011 and July 2013...
January 18, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29340945/electromagnetic-induction-sensor-for-dynamic-testing-of-coagulation-process
#4
Zhe Wang, Yuanhua Yu, Zhanjiang Yu, Qimeng Chen
With the increasing demand for coagulation POCT for patients in the surgery department or the ICU, rapid coagulation testing techniques and methods have drawn widespread attention from scholars and businessmen. This paper proposes the use of electromagnetic induction sensor probe for detection of dynamic process causing changes in the blood viscosity and density before and after coagulation based on the damped vibration principle, in order to evaluate the coagulation status. Utilizing the dynamic principle, the differential equation of vibration system comprising elastic support and electromagnetic induction device is established through sensor dynamic modeling...
January 16, 2018: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29338720/manual-exchange-transfusion-for-severe-imported-falciparum-malaria-a-retrospective-study
#5
Jinfeng Lin, Xiaoying Huang, Gang Qin, Suyan Zhang, Weiwei Sun, Yadong Wang, Ke Ren, Junxian Xu, Xudong Han
BACKGROUND: This study was designed to evaluate the efficacy of exchange transfusion in patients with severe imported falciparum malaria. Twelve patients who met the diagnostic criteria for severe malaria were treated with exchange transfusion 14 times according to a conventional anti-malarial treatment. This study evaluated the efficacy of exchange transfusion for severe imported falciparum malaria. METHODS: Clinical data of severe imported falciparum malaria patients admitted to the intensive care unit (ICU) of Nantong Third People's Hospital from January 2007 to December 2016 were investigated in this retrospective study...
January 16, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29337125/facilitating-hemostasis-after-proximal-aortic-surgery-results-of-the-protect-trial
#6
Ali Khoynezhad, Jacob DelaRosa, Marc R Moon, William T Brinkman, Richard B Thompson, Nimesh D Desai, S Chris Malaisrie, Leonard N Girardi, Joseph E Bavaria, T Brett Reece
BACKGROUND: This study intended to evaluate the safety and hemostatic efficacy of a novel vascular sealant (Tridyne™ , Neomend, Inc., Irvine, CA) compared to an accepted adjunctive hemostatic agent applied to aortotomy and sutures lines in cardiovascular surgery. METHODS: Subjects undergoing aortic valve replacement, ascending aortic replacement and/or aortic root replacement were randomized 2:1 to Tridyne™ (n =107) or Gelfoam®+ (Gelfoam®+, Baxter Healthcare Corp...
January 11, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29336885/structural-basis-for-activity-and-specificity-of-an-anticoagulant-anti-fxia-monoclonal-antibody-and-a-reversal-agent
#7
Lauren K Ely, Marco Lolicato, Tovo David, Kate Lowe, Yun Cheol Kim, Dharmaraj Samuel, Paul Bessette, Jorge L Garcia, Thomas Mikita, Daniel L Minor, Shaun R Coughlin
Coagulation factor XIa is a candidate target for anticoagulants that better separate antithrombotic efficacy from bleeding risk. We report a co-crystal structure of the FXIa protease domain with DEF, a human monoclonal antibody that blocks FXIa function and prevents thrombosis in animal models without detectable increased bleeding. The light chain of DEF occludes the FXIa S1 subsite and active site, while the heavy chain provides electrostatic interactions with the surface of FXIa. The structure accounts for the specificity of DEF for FXIa over its zymogen and related proteases, its active-site-dependent binding, and its ability to inhibit substrate cleavage...
January 2, 2018: Structure
https://www.readbyqxmd.com/read/29335811/surgical-stress-response-and-promotion-of-metastasis-in-colorectal-cancer-a-complex-and-heterogeneous-process
#8
Corina Behrenbruch, Carolyn Shembrey, Sophie Paquet-Fifield, Christina Mølck, Hyun-Jung Cho, Michael Michael, Benjamin N J Thomson, Alexander G Heriot, Frédéric Hollande
Surgery remains the curative treatment modality for colorectal cancer in all stages, including stage IV with resectable liver metastasis. There is emerging evidence that the stress response caused by surgery as well as other perioperative therapies such as anesthesia and analgesia may promote growth of pre-existing micro-metastasis or potentially initiate tumor dissemination. Therapeutically targeting the perioperative period may therefore reduce the effect that surgical treatments have in promoting metastases, for example by combining β-adrenergic receptor antagonists and cyclooxygenase-2 (COX-2) inhibitors in the perioperative setting...
January 15, 2018: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29334656/activated-protein-c-suppresses-osteoclast-differentiation-via-endothelial-protein-c-receptor-protease-activated-receptor-1-sphingosine-1-phosphate-receptor-and-apolipoprotein-e-receptor-2
#9
Kakunoshin Yoshida, Nobuyuki Akita, Takayuki Okamoto, Kunihiro Asanuma, Atsumasa Uchida, Akihiro Sudo, Motomu Shimaoka, Koji Suzuki, Tatsuya Hayashi
INTRODUCTION: Bone remodeling relies on a delicate balance between formation and resorption of bone tissues, processes in which bone-forming osteoblasts and bone-resorbing osteoclasts play central roles. Recently, we reported that anticoagulant activated protein C (APC) promotes osteoblast proliferation, but the role of the blood coagulation system in bone remodeling remains unclear. In this study, to further elucidate the relationship between bone remodeling and blood coagulation, we investigated the effect of APC on osteoclast differentiation...
January 3, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29333065/hepatitis-c-infection-in-patients-with-hereditary-bleeding-disorders-epidemiology-natural-history-and-management
#10
REVIEW
Nikolaos Papadopoulos, Vasiliki Argiana, Melanie Deutsch
Hereditary bleeding disorders include a group of diseases with abnormalities of coagulation. Prior to 1990, infection with hepatitis C virus (HCV) was mainly transmitted via pooled plasma products as a treatment for hereditary bleeding disorders. Anti-HCV positivity in these patients may be as high as >70% in some areas, while some of them have also been coinfected with human immunodeficiency virus. Since about 20% of HCV-infected patients clear the infection naturally, chronic HCV infection represents a significant health problem in this group of patients...
January 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29330151/interleukin-22-reverses-human-islet-dysfunction-and-apoptosis-triggered-by-hyperglycemia-and-light
#11
Shadab Abadpour, Bente Halvorsen, Afaf Sahraoui, Olle Korsgren, Pål Aukrust, Hanne Scholz
Interleukin (IL)-22 has recently been suggested as an anti-inflammatory cytokine that could protect the islet cells from inflammation- and glucose-induced toxicity. We have previously shown that the tumor necrosis factor family member, LIGHT can impair human islet function at least partly via pro-apoptotic effects. Herein, we aimed to investigate the protective role of IL-22 on human islets exposed to the combination of hyperglycemia and LIGHT. First, we found up-regulation of LIGHT receptors (LTβR and HVEM) in engrafted human islets exposed to hyperglycemia (>11 mM) for 17 days post transplantation by using a double islet transplantation mouse model as well as in human islets cultured with high glucose (HG) (20mM glucose) + LIGHT in vitro and this latter effect was attenuated by IL-22...
January 12, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29324883/masp-1-of-the-complement-system-enhances-clot-formation-in-a-microvascular-whole-blood-flow-model
#12
Lorenz Jenny, József Dobó, Péter Gál, Gábor Pál, Wilbur A Lam, Verena Schroeder
The complement and coagulation systems closely interact with each other. These interactions are believed to contribute to the proinflammatory and prothrombotic environment involved in the development of thrombotic complications in many diseases. Complement MASP-1 (mannan-binding lectin-associated serine protease-1) activates coagulation factors and promotes clot formation. However, this was mainly shown in purified or plasma-based static systems. Here we describe the role of MASP-1 and complement activation in fibrin clot formation in a microvascular, whole blood flow model...
2018: PloS One
https://www.readbyqxmd.com/read/29324173/the-risk-of-deterioration-in-gcs13-15-patients-with-traumatic-brain-injury-identified-by-computed-tomography-imaging-a-systematic-review-and-meta-analysis
#13
Carl Marincowitz, Fiona E Lecky, William Townend, Aditya Borakati, Andrea Fabbri, Trevor A Sheldon
The optimal management of mild traumatic brain injury (TBI) patients with injuries identified by computed tomography (CT) brain scan is unclear. Some guidelines recommend hospital admission for an observation period of at least 24 h. Others argue that selected lower-risk patients can be discharged from the Emergency Department (ED). The objective of our review and meta-analysis was to estimate the risk of death, neurosurgical intervention, and clinical deterioration in mild TBI patients with injuries identified by CT brain scan, and assess which patient factors affect the risk of these outcomes...
January 11, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29320303/time-of-day-and-short-duration-high-intensity-exercise-influences-on-coagulation-and-fibrinolysis
#14
Emma Kate Zadow, Cecilia Marie Kitic, Sam Shi Xuan Wu, James William Fell, Murray John Adams
Exercise has been demonstrated to have considerable effects upon haemostasis, with activation dependent upon the duration and intensity of the exercise bout. In addition, markers of coagulation and fibrinolysis have been shown to possess circadian rhythms, peaking within the morning (0600-1200 h). Therefore, the time of day in which exercise is performed may influence the activation of the coagulation and fibrinolytic systems. This study aimed to examine coagulation and fibrinolytic responses to short-duration high-intensity exercise when completed at different times of the day...
January 10, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29318027/diagnostic-performances-of-two-rapid-tests-for-detection-of-feline-leukemia-virus-antigen-in-sera-of-experimentally-feline-leukemia-virus-infected-cats
#15
Matthew R Krecic, Sridhar Velineni, Patrick Meeus, Huihao Fan, Michael Loenser
Objectives: The objective of this study was to compare the diagnostic sensitivities and specificities of WITNESS FeLV-FIV (Zoetis) and SNAP FIV/FeLV Combo Test (IDEXX) for the detection of FeLV p27 antigen in the sera of experimentally feline leukemia virus (FeLV)-infected cats. Methods: Diagnostic sensitivities of WITNESS and SNAP were determined through testing of 47 serum samples collected from cats day 56 post-experimental infection with a virulent FeLV Rickard strain...
January 2018: JFMS Open Reports
https://www.readbyqxmd.com/read/29316936/perioperative-complications-after-surgical-treatment-in-degenerative-adult-de-novo-scoliosis
#16
Maciej J K Simon, Henry F H Halm, Markus Quante
BACKGROUND: Degenerative adult de novo (DAD) scoliosis appears characteristically in the sixth or seventh decade with symptoms of severe back pain and radiculopathy or spinal claudication. The aim of this study was to enhance the knowledge of perioperative complications and detect possible risk factors in this selective DAD scoliosis surgery. METHODS: This retrospective study included only patients with DAD scoliosis undergone correction spondylodesis with previous failure of conservative treatment...
January 10, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29311569/hepatic-dysfunction-and-thrombocytopenia-induced-by-excess-sflt1-in-mice-lacking-endothelial-nitric-oxide-synthase
#17
Yuji Oe, Mieko Ko, Tomofumi Fushima, Emiko Sato, S Ananth Karumanchi, Hiroshi Sato, Junichi Sugawara, Sadayoshi Ito, Nobuyuki Takahashi
Liver dysfunction is a major problem in patients with severe preeclampsia (PE), hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome, or in patients receiving anti-vascular endothelial growth factor (VEGF) therapy. Excessive soluble fms-like tyrosine kinase 1 (sFlt1) that antagonizes VEGF has been implicated in the pathogenesis of PE. VEGF increases the expression of endothelial nitric oxide synthase (eNOS) and activates it. eNOS polymorphisms that cause reduced NO production are associated with PE...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29310972/porto-mesenteric-venous-thrombosis-after-laparoscopic-sleeve-gastrectomy-a-case-report-and-systematic-review-of-the-104-cases
#18
Kerem Karaman, Mehmet Aziret, Ali Bal, Volkan Öter, Metin Ercan, Erdal Birol Bostancı
INTRODUCTION: Porto-mesenteric venous thrombosis (PMVT) is a rare but fatal complication after bariatric surgery. However, an increasing number of PMVT complications have been observed in the last years after laparoscopic sleeve gastrectomy (LSG) operations. CASE REPORT: A 35-year-old male was admitted to the emergency clinic in a septic status with a sudden once of abdominal pain and vomiting. The patient underwent laparoscopic sleeve gastrectomy (LSG) 15 days ago...
January 5, 2018: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/29302904/acute-kidney-injury-in-pregnancy-with-special-reference-to-pregnancy-specific-disorders-a-hospital-based-study-2014-2016
#19
Jai Prakash, Vivek C Ganiger, Suraj Prakash, Mohammad Iqbal, Deba Prasad Kar, Usha Singh, Ashish Verma
INTRODUCTION: There are numerous reports in the literature describing acute kidney injury in pregnancy (P-AKI) due to various obstetric complications. However, there is a dearth of studies on AKI related to pregnancy-specific disorders from India. We aimed to analyze clinical features and outcome of P-AKI related to pregnancy-specific disorders compared to total pregnancy, in India. METHOD: All pregnant women attending the department of Obstetrics and Gynecology from November 2014 to July 2016 were screened for AKI based on: (1) sudden elevation of serum creatinine ≥ 1 mg/dl; (2) oligoanuria for > 12 h; and (3) need for dialysis...
January 4, 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/29296916/thromboembolic-event-rate-in-patients-exposed-to-anti-inhibitor-coagulant-complex-a-meta-analysis-of-40-year-published-data
#20
Matteo Rota, Paolo A Cortesi, Roberto Crea, Alessandro Gringeri, Lorenzo G Mantovani
Anti-inhibitor coagulant complex (AICC), an activated prothrombin complex concentrate, has been available for the treatment of patients with inhibitors since 1977, and thromboembolic events (TEEs) have been reported after infusion of AICC in patients with congenital or acquired hemophilia. With the aim of estimating the TEE incidence rate (IR) related to AICC exposure in these patients, a systematic review of the literature was carried out in Medline, according to PRISMA guidelines, from inception date to March 2017...
December 12, 2017: Blood Advances
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