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Antithrombin III

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https://www.readbyqxmd.com/read/29860275/effects-of-glycol-split-low-molecular-weight-heparin-on-placental-endothelial-and-anti-inflammatory-pathways-relevant-to-preeclampsia
#1
Jovian M Wat, Krista Hawrylyshyn, Dora Baczyk, Iain R Greig, John C Kingdom
Low molecular weight heparin (LMWH) is being investigated as a potential preventative therapy against preeclampsia. There is evidence suggesting that LMWH may prevent preeclampsia through anticoagulation-independent mechanisms. In this study, we compared the in vitro placental, endothelial, and anti-inflammatory effects of a LMWH (dalteparin) with a non-anticoagulant, glycol-split heparin derivative (gsHep). In contrast with dalteparin, gsHep did not interact with antithrombin III, possess significant anti-Factor Xa activity, or significantly prolong in vitro plasma clotting time...
May 30, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29808930/diagnostic-markers-for-cns-lymphoma-in-blood-and-cerebrospinal-fluid-a-systematic-review
#2
Anouk van Westrhenen, Lisanne C A Smidt, Tatjana Seute, Stefan Nierkens, Abraham C J Stork, Monique C Minnema, Tom J Snijders
Diagnosing central nervous system (CNS) lymphoma remains a challenge. Most patients have to undergo brain biopsy to obtain tissue for diagnosis, with associated risks of serious complications. Diagnostic markers in blood or cerebrospinal fluid (CSF) could facilitate early diagnosis with low complication rates. We performed a systematic literature search for studies on markers in blood or cerebrospinal fluid for the diagnosis CNS lymphoma and assessed the methodological quality of studies with the Quality Assessment of Diagnostic Accuracy Studies tool (QUADAS-2)...
May 29, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29800795/endothelial-cell-surface-limits-coagulation-without-modulating-the-antithrombin-potency
#3
Béatrice Catieau, Véronique Devos, Sami Chtourou, Delphine Borgel, Jean-Luc Plantier
Antithrombin (AT) binds in vitro and in vivo to endothelial cells through various receptors, including heparan sulphate glycosaminoglycan (HSPG) that could modulate the AT activity. A thrombin generation assay (TGA) was set up at the surface of HUVEC and HMVEC evaluating their participation in the coagulation-anticoagulation processes. TGA induced by 0.5 pM Tissue Factor was performed in normal or AT-deficient plasma spiked with various amounts of recombinant or plasma-derived AT (0, 0.1, 0.5 and 1.0 U/ml)...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29769259/novel-therapeutics-for-hemophilia-and-other-bleeding-disorders
#4
Michael U Callaghan, Robert Sidonio, Steven W Pipe
Hemophilia and von Willebrand disease are the most common congenital bleeding disorders. Treatment for these disorders has focused on replacement of the missing coagulation factor to prevent or treat bleeding. New technologies and insights into hemostasis have driven the development of many promising new therapies for hemophilia and von Willebrand disease. Emerging bypass agents including zymogen-like factor IXa and Xa molecules are in development and a bispecific antibody, emicizumab, demonstrated efficacy in a phase III trial in people with hemophilia A and inhibitors...
May 16, 2018: Blood
https://www.readbyqxmd.com/read/29725383/therapeutic-effect-of-radiofrequency-ablation-on-children-with-supraventricular-tachycardia-and-the-risk-factors-for-postoperative-recurrence
#5
Chunli Li, Libo Jia, Zhenzhou Wang, Ling Niu, Xinjiang An
The present study investigated the therapeutic effect of radiofrequency ablation on children with supraventricular tachycardia (SVT), and explored the risk factors for postoperative recurrence. A total of 312 patients with pediatric SVT were selected in the Affiliated Children's Hospital of Xuzhou Medical University from April, 2011 to March, 2017. All the patients were subjected to radiofrequency ablation, and clinical data were retrospectively analyzed. Tilt table test was performed before and after treatment, and heart rate, systolic and diastolic blood pressure before and after treatment were compared...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29720864/role-of-thrombophilia-in-splanchnic-venous-thrombosis-in-acute-pancreatitis
#6
Sobur Uddin Ahmed, Surinder S Rana, Jasmina Ahluwalia, Neelam Varma, Ravi Sharma, Rajesh Gupta, Mandeep Kang
Background: Splanchnic venous thrombosis (SVT) is a common vascular complication of acute pancreatitis (AP). We conducted this study to prospectively investigate the frequency, risk factors, and extent of SVT in patients with AP and to evaluate the role of thrombophilia in its causation. Methods: Patients with AP presenting between January 2015 and June 2016 were prospectively evaluated with contrast-enhanced computed tomography (CT) for the presence of SVT. These patients underwent a detailed analysis of coagulation parameters...
May 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29704446/decreased-protein-c-function-predicts-mortality-in-patients-with-cirrhosis
#7
A G Patil, C Bihari, H D Shewade, N Nigam, S K Sarin
INTRODUCTION: Protein C (PrC), a physiological anticoagulant, regulates inflammation and cell death and has known predictive/therapeutic roles in sepsis. Accumulating evidences suggest plasma hypercoagulability results in progression of fibrosis and formation of microclots causing end-organ dysfunction. We investigated a possible association between natural anticoagulants-PrC, protein S (PrS) and antithrombin III (AT)-and clinical outcomes in cirrhotics. METHODS: Functional PrC, PrS and AT were analysed in 515 cirrhotic patients and compared with 229 noncirrhotics...
April 28, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29701427/heparin-resistance-during-surgical-resection-of-inferior-vena-cava-and-right-atrial-tumor-thrombus-a-case-report
#8
Maria Beatriz Bello Dias, J Mendes, J Gouveia, C Pestana, J Bismarck
Heparin resistance is the failure of unusually high doses of heparin to achieve a target activated clotting time (ACT). We present the case of a 47-year-old female patient, ASA 2, who was diagnosed with a neuroendocrine retroperitoneal tumor with thrombus in the left renal vein, inferior vena cava and right atrium. General and cardiothoracic surgeons collaborated to remove the tumor under cardiopulmonary bypass. Heparin resistance was considered and treated with 1000 UI of antithrombin III concentrate. The authors review the mechanisms and management of this entity...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29682191/incidence-and-risk-factors-for-venous-thromboembolism-in-patients-with-pretreated-advanced-pancreatic-carcinoma
#9
Shunsuke Kondo, Mitsuhito Sasaki, Hiroko Hosoi, Yasunari Sakamoto, Chigusa Morizane, Hideki Ueno, Takuji Okusaka
Patients with pancreatic carcinoma are at an increased risk of venous thromboembolism (VTE), which is a major cause of morbidity and mortality in various types of cancer. The aim of this study was to determine the incidence and clinical significance of VTE in patients with pancreatic carcinoma, and to identify biomarkers for the detection of VTE in these patients. The eligibility criteria were chemo-naïve patients with primary pancreatic carcinoma, an Eastern Cooperative Oncology Group performance status of 0-2, and adequate organ function...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29681597/strategy-for-cardiovascular-surgery-in-patients-with-antithrombin-iii-deficiency
#10
Yoshiyuki Nishimura, Yasushi Takagi
Antithrombin III (ATIII) deficiency is a rare disorder in which thrombosis can be induced by stimuli that do not usually lead to thrombus formation, including minor injuries and surgery. Therefore, patients with ATIII deficiency undergoing cardiovascular surgery that involves heparinization require careful perioperative management. We experienced five patients with ATIII deficiency who underwent cardiovascular surgery and were managed with ATIII replacement. By administration of ATIII concentrate, preoperative ATIII activity was maintained at ≥120% and postoperative ATIII activity at ≥80%...
April 20, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29544770/acclimation-to-cold-and-warm-temperatures-is-associated-with-differential-expression-of-male-carp-blood-proteins-involved-in-acute-phase-and-stress-responses-and-lipid-metabolism
#11
Mariola A Dietrich, Piotr Hliwa, Mikołaj Adamek, Dieter Steinhagen, Halina Karol, Andrzej Ciereszko
The environmental temperature affects plasma biochemical indicators, antioxidant status and hematological and immunological parameters in fish. So far, only single blood proteins have been identified in response to temperature changes. The aim of this study was to compare the proteome of carp blood plasma from males acclimated to warm (30 °C) and cold (10 °C) temperatures by two-dimensional differential gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry. A total of 47 spots were found to be differentially regulated by temperature (>1...
May 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29540887/neonatal-purpura-fulminans-a-rare-genetic-disorder-due-to-protein-c-deficiency-a-case-report
#12
Sayyeda Ghazala Irfan Kazi, Emaduddin Siddiqui, Irfan Habib, Saadia Tabassum, Badar Afzal, Irum Qamar Khan
Neonatal Purpura Fulminans is a rare and fatal disorder associated with perivascular haemorrhage and disseminated intravascular coagulation. Early clinical recognition, timely investigation and treatment is utmost important. A 6 days old baby boy was brought to emergency with blackish ulcers all over the body. Initially these were over the feet and scalp but later appeared on the abdomen. On examination, child was vitally stable, mildly icteric and had multiple erythematous large bullous blackish lesions on scalp, lower abdomen, perineum, back and soles...
March 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29527140/proteomic-characterization-of-high-density-lipoprotein-particles-in-patients-with-non-alcoholic-fatty-liver-disease
#13
Prahlad K Rao, Kate Merath, Eugene Drigalenko, Avinash Y L Jadhav, Richard A Komorowski, Matthew I Goldblatt, Anand Rohatgi, Mark A Sarzynski, Samer Gawrieh, Michael Olivier
Background: Metabolic diseases such as obesity and diabetes are associated with changes in high-density lipoprotein (HDL) particles, including changes in particle size and protein composition, often resulting in abnormal function. Recent studies suggested that patients with non-alcoholic fatty liver disease (NAFLD), including individuals with non-alcoholic steatohepatitis (NASH), have smaller HDL particles when compared to individuals without liver pathologies. However, no studies have investigated potential changes in HDL particle protein composition in patients with NAFLD, in addition to changes related to obesity, to explore putative functional changes of HDL which may increase the risk of cardiovascular complications...
2018: Clinical Proteomics
https://www.readbyqxmd.com/read/29519278/-effect-of-early-intervention-with-heparin-on-function-of-coagulopathy-liver-and-kidney-in-rats-with-exertional-heatstroke-under-the-ambient-air-of-high-temperature-and-low-humidity
#14
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
https://www.readbyqxmd.com/read/29501637/predictors-of-heparin-resistance-before-cardiovascular-operations-in-adults
#15
Satoshi Kawatsu, Konosuke Sasaki, Ko Sakatsume, Shingo Takahara, Katsuhiro Hosoyama, Naoki Masaki, Yusuke Suzuki, Yukihiro Hayatsu, Ichiro Yoshioka, Kei Sakuma, Osamu Adachi, Masatoshi Akiyama, Kiichiro Kumagai, Naotaka Motoyoshi, Shunsuke Kawamoto, Yoshikatsu Saiki
BACKGROUND: Heparin resistance (HR) is often encountered during cardiovascular operations that require cardiopulmonary bypass. Clinical risk factors and the mechanism underlying heparin resistance are yet to be determined. The aim of this study was to elucidate the clinically valid preoperative predictors related to HR. METHODS: The study evaluated 489 patients undergoing cardiovascular operations. Of these, 25 patients presented with HR and received antithrombin III for the initiation of cardiopulmonary bypass with an effective activated coagulation time...
May 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29458015/sulfenamide-and-sulfonamide-derivatives-of-metformin-can-exert-anticoagulant-and-profibrinolytic-properties
#16
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...
March 25, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29399517/neutrophil-extracellular-traps-are-increased-in-cancer-patients-but-does-not-associate-with-venous-thrombosis
#17
Rahmi Oklu, Rahul A Sheth, Keith H K Wong, Amin H Jahromi, Hassan Albadawi
Background: A single center, prospective tissue-based study was conducted to investigate an association between neutrophil extracellular traps (NETs) and venous thromboembolic disease in patients with malignancy. Methods: Plasma was collected from 65 patients in which 27 were cancer patients and 38 were age-matched non-cancer patients. Plasma NETs, circulating free DNA (cfDNA), DNase-1, endonuclease-G, endonuclease activity and thrombin-antithrombin III (TAT) complex levels was quantified...
December 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29399079/rivaroxaban-for-the-treatment-of-venous-thromboembolism-in-patients-with-nephrotic-syndrome-and-low-at-iii-a-pilot-study
#18
Lihua Zhang, Haitao Zhang, Jiong Zhang, Hong Tian, Ju Liang, Zhihong Liu
The anticoagulation effect of heparin requires adequate serum antithrombin (AT)-III levels. Rivaroxaban, however, exhibits its anticoagulation effects independent of AT-III. The aim of the present study was to evaluate the efficacy and safety of rivaroxaban as a treatment for venous thromboembolism in patients with AT-III deficiency due to nephrotic syndrome. Patients with nephrotic syndrome and low serum concentration and functional activity of AT-III and venous thromboembolism were randomly assigned to the rivaroxaban group (n=8) and low weight molecular heparin group (n=8)...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29365332/cardiovascular-risk-factors-in-acromegaly-what-s-the-impact-of-disease-control
#19
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
https://www.readbyqxmd.com/read/29339133/antithrombin-iii-binding-site-analysis-of-low-molecular-weight-heparin-fractions
#20
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, an LMWH, enoxaparin sodium (a generic version of Lovenox) was separated into different molecular weight 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...
May 2018: Journal of Pharmaceutical Sciences
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