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Antithrombin

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https://www.readbyqxmd.com/read/27922933/the-cross-sectional-association-between-vasomotor-symptoms-and-hemostatic-parameter-levels-in-postmenopausal-women
#1
Laura B Harrington, Marc Blondon, Mary Cushman, Andrew M Kaunitz, Jacques E Rossouw, Matthew A Allison, Lisa W Martin, Karen C Johnson, Jan Rosing, Nancy F Woods, Andrea Z LaCroix, Susan R Heckbert, Barbara McKnight, Nicholas L Smith
OBJECTIVE: Vasomotor symptoms (VMS) may be a marker of cardiovascular risk. We aimed to evaluate the cross-sectional association of VMS presence and severity with hemostatic parameter levels measured at baseline among Women's Health Initiative (WHI) Hormone Therapy trial postmenopausal participants. METHODS: This cross-sectional analysis included 2,148 postmenopausal women with measures of VMS presence and severity reported in the 4 weeks before WHI baseline, who were not using warfarin or hormone therapy and for whom the following baseline hemostatic parameters were measured within the WHI Cardiovascular Disease Biomarker Case-Control Study: antithrombin, plasminogen activator inhibitor-1, protein C antigen, total and free protein S antigen, total and free tissue factor pathway inhibitor, D-dimer, normalized activated protein C sensitivity ratio, and thrombin generation...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27918392/antithrombin-administration-in-extracorporeal-membrane-oxygenation-patients-putting-the-cart-before-the-horse
#2
Graeme MacLaren, Paul Monagle
No abstract text is available yet for this article.
December 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27914214/antithrombin-improves-the-maternal-and-neonatal-outcomes-but-not-the-angiogenic-factors-in-extremely-growth-restricted-fetuses-at-28-weeks-of-gestation
#3
Midori Fujisaki, Ken Furuta, Masanao Ohhashi, Seishi Furukawa, Yuki Kodama, Yasuyuki Kawagoe, Hiroshi Sameshima, Tsuyomu Ikenoue
AIMS: Severe preterm fetal growth restriction (FGR) remote from term is problematic. We aimed to investigate the effect of maternally-administered antithrombin on maternal and neonatal outcomes. A prospective, one-arm, pilot study was performed in 14 women with severe FGR (≤5th centile) at <28 weeks of gestation, without hypertensive disorders. Maternal plasma concentrations of soluble Feline McDonough Sarcoma (FMS)-like trypsin kinase-1 (sFlt-1) and placental growth factor (PlGF) were measured and categorized into three groups: group 1; low sFlt-1 and high PlGF, group 2; moderate sFlt-1 and low PlGF, and group 3; high sFlt-1 and low PlGF...
December 3, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27906452/primary-prophylaxis-for-venous-thromboembolism-in-ambulatory-cancer-patients-receiving-chemotherapy
#4
REVIEW
Marcello Di Nisio, Ettore Porreca, Matteo Candeloro, Michele De Tursi, Ilaria Russi, Anne Ws Rutjes
BACKGROUND: Venous thromboembolism (VTE) often complicates the clinical course of cancer. The risk is further increased by chemotherapy, but the trade-off between safety and efficacy of primary thromboprophylaxis in cancer patients treated with chemotherapy is uncertain. This is the second update of a review first published in February 2012. OBJECTIVES: To assess the efficacy and safety of primary thromboprophylaxis for VTE in ambulatory cancer patients receiving chemotherapy compared with placebo or no thromboprophylaxis...
December 1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27902939/factor-xiii-deficiency-enhances-thrombin-generation-due-to-impaired-fibrin-polymerization-an-effect-corrected-by-factor-xiii-replacement
#5
Hanna H Pitkänen, Annukka Jouppila, Marja Lemponen, Minna Ilmakunnas, Jouni Ahonen, Riitta Lassila
INTRODUCTION: Factor XIII (FXIII) cross-links fibrin, completing blood coagulation. Congenital FXIII deficiency is managed with plasma-derived FXIII (pdFXIII) or recombinant FXIII (rFXIII) concentrates. AIM: As the mechanisms protecting patients with low FXIII levels (<5IU/dL) from spontaneous bleeds remain unknown we assessed the interplay between thrombin generation (TG), fibrin formation and clot kinetics before and after FXIII administration in three patients with FXIII deficiency...
November 16, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27898513/inhibition-of-plasmin-generation-in-plasma-by-heparin-low-molecular-weight-heparin-and-a-covalent-antithrombin-heparin-complex
#6
Gabriela M T Chang, Helen M Atkinson, Leslie R Berry, Anthony K C Chan
The clinical limitations of unfractionated heparin (UFH) and low molecular weight heparin (LMWH) led to the development of an antithrombin-heparin covalent complex (ATH), which displays superior anticoagulant abilities compared with UFH. A recent study investigating its interaction with fibrinolysis showed that ATH inhibited free and fibrin bound plasmin and decreased plasmin generation on fibrin clots. These studies were conducted using purified components and did not elucidate the interaction of ATH with plasmin in the presence of its natural inhibitors α2-antiplasmin (α2-AP) and α2-macroglobulin (α2-M)...
November 24, 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/27898408/sulodexide-protects-contrast-induced-nephropathy-in-sprague-dawley-rats
#7
Qing Zhao, Jianyong Yin, Zeyuan Lu, Yiwei Kong, Guangyuan Zhang, Binghui Zhao, Feng Wang
BACKGROUND: Sulodexide is a powerful antithrombin agent with reno-protective property. However, whether it has beneficial effects on Contrast-Induced Nephropathy (CIN) remained elusive. In the current study, we evaluated the therapeutic effects of Sulodexide on CIN and investigated the potential mechanisms. METHODS: CIN model was induced by intravenous injection of indomethacin, followed by Ioversol and L-NAME. Sprague-Dawley rats were divided into 4 groups: control group, CIN group, CIN+vehicle group (CIN rats pretreated with vehicle) and CIN+ Sulodexide (CIN rats pretreated with Sulodexide)...
November 30, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27894965/an-application-of-mass-spectrometry-for-quality-control-of-biologicals-highly-sensitive-profiling-of-plasma-residuals-in-human-plasma-derived-immunoglobulin
#8
Franck Limonier, Katleen Van Steendam, Geneviève Waeterloos, Koen Brusselmans, Myriam Sneyers, Dieter Deforce
: Thromboembolic events (TEE) associated to trace amounts of plasmatic activated coagulation factor XI (FXIa) in administrated immunoglobulin (Ig) have recently raised concerns and hence there is a need for highly sensitive profiling of residual plasma source proteins. This study aims to consider LC-ESI-QTOF data-dependent acquisition in combination with sample fractionation for this purpose. Sample fractionation proved mandatory to enable identification of plasma residuals. Two approaches were compared: Ig depletion with protein G - protein A affinity chromatography and low-abundant protein enrichment with a combinatorial peptide ligand library (ProteoMiner™, Bio-Rad)...
November 26, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27893574/randomized-comparison-of-packed-red-blood-cell-to-fresh-frozen-plasma-transfusion-ratio-of-4-1-vs-1-1-during-acute-massive-burn-excision
#9
Laura A Galganski, David G Greenhalgh, Soman Sen, Tina L Palmieri
This prospective randomized controlled trial compared 1:1 vs 4:1 packed red blood cell with fresh frozen plasma (PRBC/FFP) transfusion strategy on outcomes in children with >20% TBSA burns. Children with >20% TBSA burns were randomized to a 1:1 or 4:1 PRBC/FFP transfusion ratio during burn excision. Parameters measured included demographics, TBSA burn, and Pediatric Risk of Mortality scores. Laboratory values recorded preoperatively, 1 hour, 12 hours, 24 hours, and 1 week postoperatively included prothrombin time, partial thromboplastin time (PTT), international normalized ratio, fibrinogen, protein C, and antithrombin C (AIII)...
November 15, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27891624/quarantine-versus-pathogen-reduced-plasma-coagulation-factor-content-and-rotational-thromboelastometry-coagulation
#10
Oliver M Theusinger, David Goslings, Jan-Dirk Studt, Brigitte Brand-Staufer, Burkhardt Seifert, Donat R Spahn, Beat M Frey
BACKGROUND: Different types of fresh-frozen plasma (FFP) exist, and the concentrations of plasma proteins vary between individuals and blood groups. Furthermore, processing may also influence the content. Quarantine-stored plasma (qFFP) and plasma that was pathogen-reduced using blood-safety (Intercept) technology (piFFP) were analyzed regarding procoagulant and anticoagulant hemostasis proteins, including endogenous thrombin (thrombin-generation) potential (ETP). MATERIALS AND METHODS: Thirty-five samples of each type of FFP were analyzed using only male Blood Group O donors...
November 27, 2016: Transfusion
https://www.readbyqxmd.com/read/27889551/endothelial-dysfunction-and-cardiovascular-risk-factors-in-childhood-acute-lymphoblastic-leukemia-survivors
#11
Paola Giordano, Paola Muggeo, Maurizio Delvecchio, Santa Carbonara, Alberto Romano, Maria Altomare, Gabriella Ricci, Federica Valente, Annapaola Zito, Pietro Scicchitano, Luciano Cavallo, Marco Matteo Ciccone, Nicola Santoro, Maria Felicia Faienza
BACKGROUND: Childhood acute lymphoblastic leukemia (ALL) survivors have increased risk of obesity, metabolic alterations and cardiovascular disease (CVD). Vascular endothelial function has been studied in adult cancers. Limited data exist regarding CVD risk factors among childhood ALL survivors. We aimed to assess endothelial function, metabolic and cardiovascular risk factors in young survivors of childhood ALL. METHODS: Auxological parameters, blood pressure, glucose, lipid profile, hemostatic markers (total adiponectin and high-molecular-weight subfraction, endothelin-1, von Willebrand factor antigen, thrombin-antithrombin complex, D-dimers, fibrinogen), high sensitive C-reactive protein and ultrasound parameters of endothelial function (flow-mediated dilation-FMD, common carotid intima-media thickness-C-IMT, and antero-posterior diameter of infra-renal abdominal aorta-APAO) were assessed in 52 ALL survivors and 34 sex and age-matched controls...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27886001/strategy-for-the-hemocompatibility-testing-of-microparticles
#12
S Braune, S Basu, K Kratz, J Bäckemo Johansson, M Reinthaler, A Lendlein, F Jung
Polymer-based microparticles are applied as non-thrombogenic or thrombogenic materials in a wide variety of intra- or extra-corporeal medical devices. As demanded by the regulatory agencies, the hemocompatibility of these blood contacting biomaterials has to be evaluated in vitro to ensure that the particle systems appropriately fulfill the envisioned function without causing undesired events such as thrombosis or inflammation. Currently described in vitro assays for hemocompatibility testing of particles comprise tests with different single cell types (e...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27865966/febuxostat-attenuates-paroxysmal-atrial-fibrillation-induced-regional-endothelial-dysfunction
#13
YanGuang Li, FuKun Chen, Long Deng, Kun Lin, Xiangmin Shi, Shan Zhaoliang, YuTang Wang
BACKGROUND: Paroxysmal atrial fibrillation (PAF) can increase thrombogenesis risk, especially in the left atrium (LA). The exact mechanism is still unclear. OBJECTIVE: We assessed the effects of PAF on endothelial function, and investigated if febuxostat (FX) can attenuate endothelial dysfunction by inhibition of xanthine oxidase (XO). MATERIALS AND METHODS: Eighteen male New Zealand white rabbits were divided randomly into sham-operated (S), PAF (P) or FX+pacing (FP) groups...
November 11, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27863268/subtypes-of-serpinc1-mutations-and-the-thrombotic-phenotype-of-inherited-antithrombin-deficient-individuals-in-chinese-han-population
#14
Dong Wang, Guanglin Cui, Senlin Hu, Dao Wen Wang
Inherited antithrombin (AT) deficiency is a rare autosomal disease that could increase the risk of venous thromboembolism (VTE) and usually caused by mutations of SERPINC1. Although a number of mutations of SERPINC1 have been reported in Chinese Han population, the impact of different subtypes of these mutations on the thrombotic phenotype is still unknown. Here, we performed a retrospective cohort study including 169 AT patients from 63 families to compare the clinical features between null mutation carriers and missense mutation carriers...
November 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27861430/the-use-of-recombinant-antithrombin-iii-in-pediatric-and-neonatal-ecmo-patients
#15
Deanna R Todd Tzanetos, John Myers, Terri Wells, Dan Stewart, Jeffrey J Fanning, Janice E Sullivan
A retrospective review of 77 pediatric and neonatal ECMO patients who received recombinant antithrombin III (ATIII) for ATIII activity >80% was conducted.Anticoagulation management was per institutional protocol. An ATIII activity >80% was targeted. Diagnosis, reason for ECMO cannulation, blood product usage, heparin dosing, ATIII activity and doses, thrombotic and bleeding complications, hours on ECMO, and mortality were recorded. We calculated patient-level summary statistics and assessed differences between groups using χ2 tests (categorical variables) and Wilcoxon rank sum tests (continuous variables)...
November 15, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27859427/citrate-buffered-dialysis-solution-citrasate-allows-avoidance-of-anticoagulation-during-intermittent-hemodiafiltration-at-the-cost-of-decreased-performance-and-systemic-biocompatibility
#16
Pavlina Richtrova, Jan Mares, Lukas Kielberger, Ladislav Trefil, Jaromir Eiselt, Tomas Reischig
Reportedly, citrate-based dialysis solution enables heparin dose tapering or even complete exclusion, particularly in postdilution hemodiafiltration (HDF). The aim of the study was to verify this strategy in predilution setting and to assess its short-term safety, efficacy, and biocompatibility. Ten regular hemodialysis patients were assigned to predilution HDF on acetate- and citrate-based dialysis solutions (0.8 mmol/l trisodium citrate) at random order. Acetate HDF was performed using routine dose of heparin while citrate HDF was heparin free...
November 10, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27858332/causative-genetic-mutations-for-antithrombin-deficiency-and-their-clinical-background-among-japanese-patients
#17
Akiko Sekiya, Fumina Taniguchi, Daisuke Yamaguchi, Sayaka Kamijima, Shonosuke Kaneko, Shiori Katsu, Miho Hanamura, Mao Takata, Haruka Nakano, Hidesaku Asakura, Shigeki Ohtake, Eriko Morishita
We summarize causative genetic mutations for antithrombin (AT) deficiency and their clinical background in Japanese patients. A total of 19 mutations, including seven novel mutations, were identified. We also summarize clinical symptoms of thrombosis, age at onset, family history, and contributing factors for thrombosis, and review the use of prophylactic anticoagulation in pregnant women with heterozygous type II heparin binding site defects (HBS) AT deficiency. The prevalence of thrombosis in probands with type I AT deficiency (88%) was double that observed in those with type II AT deficiency (50%)...
November 17, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27853070/edoxaban-was-effective-for-the-treatment-of-deep-vein-thrombosis-and-pulmonary-thromboembolism-in-a-cancer-patient-with-antithrombin-iii-deficiency
#18
Hiroaki Kawano, Koji Maemura
A 57-year-old man with antithrombin III deficiency with deep vein thrombosis and pulmonary thromboembolism after surgery for colon cancer was managed with warfarin and inferior vena cava filtration. After starting chemotherapy for liver metastasis, the control of his prothrombin time-international normalized ratio in response to warfarin began to fluctuate. Warfarin was changed to edoxaban (an oral direct Factor Xa inhibitor), and he had no recurrence of venous thromboembolism or bleeding for approximately 1 year...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27852201/a-comprehensive-docking-and-mm-gbsa-rescoring-study-of-ligand-recognition-upon-binding-antithrombin
#19
Xiaohua Zhang, Horacio Perez-Sanchez, Felice C Lightstone
A high-throughput virtual screening pipeline has been extended from single energetically minimized structure Molecular Mechanics/Generalized Born Surface Area (MM/GBSA) rescoring to ensemble-average MM/GBSA rescoring. The correlation coefficient (R2) of calculated and experimental binding free energies for a series of antithrombin ligands has been improved from 0.36 to 0.69 when switching from the single-structure MM/GBSA rescoring to ensemble-average one. The electrostatic interactions in both solute and solvent are identified to play an important role in determining the binding free energy after the decomposition of the calculated binding free energy...
November 17, 2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/27851127/1491-antithrombin-iii-deficiency-relates-to-mortality-in-sepsis
#20
Noriko Saito, Ayumi Kawasaki, Noboru Akizuki, Mizuho Namiki, Munekazu Takeda, Arino Yaguchi
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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