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Antithrombin 3

Gülsüm Özkan, Gaye Kübra Emeksiz, Reşit Volkan Atar, Samet Sedef, Pınar Sonat Kara, Meltem Öznur, Burhan Turgut
Purpura fulminans associated with antithrombin 3 (AT 3) deficiency is very rare in adults and neonates. It can be categorized into three principal forms - neonatal, idiopathic and acute infectious. Purpura fulminans has been reported to cause cardiac, pulmonary and renal damage in rare cases. We describe an adult case of purpura fulminans developing in association with AT 3 deficiency without infection following a surgical procedure, and acute kidney injury (AKI) developing secondary to rhabdomyolysis and disseminated intravascular coagulation (DIC)...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Yang Yu, Yuying Wei, Xiangrong Zhang, Xinyu Li
OBJECTIVE: To explore the effects of early intervention with heparin on function of coagulopathy, liver and kidney as well as the prognosis in rats with exertional heatstroke (EHS) under the ambient air of high temperature and low humidity. METHODS: 108 healthy SPF male Sprague-Dawley (SD) rats were randomly divided into normal temperature control group, EHS + normal saline (NS) group and EHS + heparin group. Of which 54 rats were collected for survival analysis (18 rats in each group), the weight change and 8-hour survival rate were observed, and Kaplan-Meier survival curves were drawn...
March 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
Igor Rocha, Jonas Lindh, Jaan Hong, Maria Strømme, Albert Mihranyan, Natalia Ferraz
Sulfonated cellulose beads were prepared by oxidation of Cladophora nanocellulose to 2,3-dialdehyde cellulose followed by sulfonation using bisulfite. The physicochemical properties of the sulfonated beads, i.e., high surface area, high degree of oxidation, spherical shape, and the possibility of tailoring the porosity, make them interesting candidates for the development of immunosorbent platforms, including their application in extracorporeal blood treatments. A desired property for materials used in such applications is blood compatibility; therefore in the present work, we investigate the hemocompatibility of the sulfonated cellulose beads using an in vitro whole blood model...
March 7, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Sadaaki Horiguchi, Hisako Ono, Hiroyuki Shirato, Toshimitsu Kawakami, Shiho Yabuki, Naomi Morita, Nozomu Shirasugi
In our varicose vein center, on a trial basis, among the patients with asymptomatic calf deep vein thrombosis (CDVT) we carefully selected the patients for varicose vein surgery using the requirements as follows; 1) the patients had varicose veins with incompetent saphenous veins, 2) sequential examination including DUS confirmed stability and clinical insignificance of asymptomatic CDVT, 3) the patients do not have any risk factors for DVT such as a coagulation profile disorder (antithrombin deficiency, protein C deficiency, protein S deficiency, or antiphospholipid syndrome) or malignancies, 4) surgery is possible under local anesthesia alone, and 5) the patients can understand the concept of asymptomatic CDVT and undergo the surgery on their own will and informed consent...
December 25, 2017: Annals of Vascular Diseases
Mineji Hayakawa, Kazuma Yamakawa, Daisuke Kudo, Kota Ono
Low-dose antithrombin supplementation therapy (1500 IU/d for 3 days) improves outcomes in patients with sepsis-induced disseminated intravascular coagulation (DIC). This retrospective study evaluated the optimal antithrombin activity threshold to initiate supplementation, and the effects of supplementation therapy in 1033 patients with sepsis-induced DIC whose antithrombin activity levels were measured upon admission to 42 intensive care units across Japan. Of the 509 patients who had received antithrombin supplementation therapy, in-hospital mortality was significantly reduced only in patients with very low antithrombin activity (≤43%; bottom quartile; adjusted hazard ratio: 0...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
Yutaka Umemura, Kazuma Yamakawa, Mineji Hayakawa, Daisuke Kudo, Satoshi Fujimi
BACKGROUND: Antithrombin and recombinant human thrombomodulin (rhTM) are individually reported to improve survival in sepsis-induced disseminated intravascular coagulation (DIC). However, continuing controversy exists as to which agent is superior and whether concomitant therapy is superior to individual administration. METHODS: This post hoc analysis included adult patients with sepsis-induced DIC from a nationwide multicenter registry database in Japan. We categorized patients into 4 groups: patients who received (1) individual administration of antithrombin, (2) individual administration of rhTM, (3) both, and (4) neither...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
Rui Wu, Yiwei Kong, Jianyong Yin, Rulian Liang, Zeyuan Lu, Niansong Wang, Qing Zhao, Yang Zhou, Chungen Yan, Feng Wang, Mingyu Liang
BACKGROUND/AIMS: Antithrombin Ⅲ (AT Ⅲ) is an important endogenous anticoagulant and has strong anti-inflammatory properties. Low ATⅢ activity is considered to be a predictor of poor outcomes in several conditions, including acute kidney injury after cardiac surgery. However, the association between the ATⅢ level and the occurrence of contrast induced nephropathy (CIN) has not been elucidated. In this study, our aim was to identify the potential predictive value of ATⅢ for CIN...
February 16, 2018: Kidney & Blood Pressure Research
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
Craig P McFarland, Stuart E Lind
Anticoagulation therapy is administered to patients to prevent or stop thrombin generation in vivo. Although plasma tests of in vivo thrombin generation have been available for more than 2 decades, they are not routinely used in clinical trials or practice to monitor anticoagulation therapy. We observed a fall in one such marker, the D-dimer antigen, in patients receiving anticoagulation therapy. We therefore conducted a systematic review of the medical literature to document the change in serum biomarkers of thrombin generation following the initiation of anticoagulation therapy...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
Marina Panova-Noeva, Andreas Schulz, Natalie Arnold, Iris M Hermanns, Jürgen H Prochaska, Dagmar Laubert-Reh, Henri M Spronk, Maria Blettner, Manfred Beutel, Norbert Pfeiffer, Thomas Münzel, Karl J Lackner, Hugo Ten Cate, Philipp S Wild
BACKGROUND: The advancements in cancer treatment and detection of early cancer have resulted in steady increase of cancer survivors over the years. However, due to long term toxic effects of chemotherapy and radiotherapy, the incidence of cardiovascular disease (CVD) is increasing in survivors. OBJECTIVES: This study investigates traditional cardiovascular risk factors (CVRFs), inflammation and coagulation profile in long-term cancer survivors (cancer diagnosis ≥ five years) from a large adult population-based study sample...
February 12, 2018: Journal of Thrombosis and Haemostasis: JTH
A Molina, L Guiñon, A Perez, A Segurana, J L Bedini, J C Reverter, A Merino
INTRODUCTION: It is important for clinical laboratories to maintain under control the possible sources of error in its analytical determinations. The objective of this work is to perform an analysis of the total error committed by laboratories using the data extracted from the Spanish External Quality Assessment Program in Hematology and to compare them with the specifications based on the biological variability proposed by the Ricós group. MATERIAL AND METHODS: We analyzed a total of 3 89 000 results during the period 2015-2016 from the following quantitative schemes of Spanish External Quality Assessment Program: complete blood count, blood coagulation tests, differential leukocyte count, reticulocytes, hemoglobin A2 , antithrombin, factor VIII, protein C, and von Willebrand factor...
February 5, 2018: International Journal of Laboratory Hematology
Rashid Alobaidi, Natalie Anton, Dominic Cave, Elham Khodayari Moez, Ari R Joffe
AIM: To determine potentially modifiable predictors of early outcomes after liver transplantation in children of age < 3 years. METHODS: This study was a retrospective chart review including all consecutive children of age less than 3-years-old having had a liver transplant done at the Western Canadian referral center from June 2005 to June 2015. Pre-specified potential predictor variables and primary and secondary outcomes were recorded using standard definitions and a case report form...
January 27, 2018: World Journal of Hepatology
Heiko Rühl, Sara Reda, Jens Müller, Johannes Oldenburg, Bernd Pötzsch
Antithrombin (AT) activity tests are used for diagnosing hereditary AT deficiency, a main genetic determinant of thrombophilia. They are either based on inhibition of thrombin (FIIa) or activated factor X (FXa). FXa-based assays have been suggested to be preferable to FIIa-based assays due to their higher sensitivity for certain AT deficiency causing mutations. To assess the performance of these two methods in a real-world scenario, 745 consecutively collected samples from patients referred to our institute during a 3-month period for thrombophilia testing were analysed...
February 2018: Thrombosis and Haemostasis
Juraj Sokol, Jasmijn F Timp, Saskia le Cessie, Astrid van Hylckama-Vlieg, Frits R Rosendaal, Peter Kubisz, Suzanne Cannegieter, Willem M Lijfering
BACKGROUND: Mild antithrombin deficiency (previously defined as antithrombin activity below 70% or 80%) has been associated with a 2.4-3.5-fold increased risk of recurrent venous thromboembolism (VTE). This finding may have implications for duration of antithrombotic therapy in VTE patients with mild antithrombin deficiency. OBJECTIVES: To externally validate whether mild antithrombin deficiency is a risk. factor for recurrent VTE. METHODS: In a population based cohort study, patients with a first VTE (n=2357) were stratified according to percentile cut-off antithrombin levels (<5th [<87%], 5-10th [87-92%], >10th percentile [>92%]) and functional antithrombin levels (<70%, 70-80%, >80%)...
January 28, 2018: Journal of Thrombosis and Haemostasis: JTH
W Liu, J K Chai
Objective: To explore the influences of ulinastatin on acute lung injury and time phase changes of coagulation parameters in rats with severe burn-blast combined injuries. Methods: One hundred and ninety-two Sprague-Dawley rats were divided into pure burn-blast combined injury group, ulinastatin+ burn-blast combined injury group, and sham injury group according to the random number table, with 64 rats in each group. Two groups of rats with combined burn-blast injuries were inflicted with moderate blast injuries with the newly self-made explosive device...
January 20, 2018: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
Ana Amado, Fernando Araújo, Davide Carvalho
OBJECTIVE: Cardiovascular disease is one of the most important causes of death in acromegalic patients. The aim of this study is to compare the prevalence of cardiovascular risk factors among acromegalic patients and to evaluate the impact of disease control on these factors. MATERIAL AND METHODS: 11 acromegalic patients with active disease and 12 controlled patients were evaluated for blood pressure, body mass index, glucose, coagulation status, and lipid profile...
January 24, 2018: Experimental and Clinical Endocrinology & Diabetes
Elsa P Bianchini, Alexandre Sebestyen, Toufik Abache, Yasmine Bourti, Alexandre Fontayne, Vincent Richard, Fabienne Tamion, Jean-Luc Plantier, Fabien Doguet, Delphine Borgel
Heparin anticoagulation followed by protamine reversal is commonly used in cardiopulmonary bypass (CPB). As an alternative to protamine, a recombinant inactive antithrombin (riAT) was designed as an antidote to heparin and was previously shown to be as potent as protamine in-vitro. In the present study, riAT was assessed for its ability to neutralize heparin after CPB in a rat model. After 60 min of CPB under heparin, rats received 5 mg/kg protamine, 37.5 mg/kg riAT or phosphate buffered saline (PBS) as placebo...
January 24, 2018: British Journal of Haematology
A Silveira, A Carlo, M Adam, O McLeod, P Lundman, S Boquist, B J Woodhams, A Hamsten
INTRODUCTION: Factor VII activation occurs postprandially. A proportion of activated factor VII (VIIa) circulates in complex with antithrombin (VIIaAT). Our primary objective was to assess the effects of postprandial lipemia on circulating VIIaAT, procoagulant phospholipid (PPL) activity, and thrombin generation. METHODS: Plasma samples from postmyocardial infarction patients (n = 40) and controls (n = 39) were taken before and at 3 and 6 hours during a standardized oral fat tolerance test (OFTT)...
January 22, 2018: International Journal of Laboratory Hematology
Yin Chen, Jing Zhao, Yanlei Yu, Xinyue Liu, Lei Lin, Fuming Zhang, Robert J Linhardt
Low molecular weight heparins (LMWHs) are widely used as clinical anticoagulant drugs. LMWHs are heterogeneous and highly negatively charged glycans prepared by chemical or enzymatic depolymerization of unfractionated heparin. The detailed structural analysis of a LMWH is essential for the drug quality control. In this study, a LMWH, enoxaparin sodium (a generic version of Lovenox) was separated to different molecular weights fractions by a Superdex peptide column. The disaccharide compositions, 3-O-sulfo group containing tetrasaccharides composition, and antithrombin III binding affinity of the fractions from this LMWH were analyzed...
January 12, 2018: Journal of Pharmaceutical Sciences
Uma H Athale, T Mizrahi, C Laverdière, T Nayiager, Y-L Delva, G Foster, L Thabane, M David, J-M Leclerc, A K C Chan
BACKGROUND: Children with acute lymphoblastic leukemia (ALL) have increased risk of thromboembolism (TE). However, the predictors of ALL-associated TE are as yet uncertain. OBJECTIVE: This exploratory, prospective cohort study evaluated the effects of clinical (age, gender, ALL risk group) and laboratory variables (hematological parameters, ABO blood group, inherited and acquired prothrombotic defects [PDs]) at diagnosis on the development of symptomatic TE (sTE) in children (aged 1 to ≤18) treated on the Dana-Farber Cancer Institute ALL 05-001 study...
January 15, 2018: Pediatric Blood & Cancer
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