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Coagulation

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https://www.readbyqxmd.com/read/29232592/the-impact-of-oral-arsenic-and-all-trans-retinoic-acid-on-coagulopathy-in-acute-promyelocytic-leukemia
#1
Hong-Hu Zhu, Zhi-Ping Guo, Jin-Song Jia, Qian Jiang, Hao Jiang, Xiao-Jun Huang
The aim of our study was to evaluate the impact of oral arsenic (the realgar-indigo naturalis formula, RIF) and all-trans retinoic acid (ATRA) on coagulopathy in acute promyelocytic leukemia (APL) compared with intravenous arsenic trioxide (ATO) and ATRA during induction. Mitoxantrone was added to all the patients at a dose of 1.4mg/m2 per day for 5-7 days. D-dimer levels, prothrombin time (PT), fibrinogen (Fbg) levels and the platelet count were comparably analyzed among 83 newly diagnosed APL patients treated with RIF (n=45) or with ATO (n=38)...
November 15, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29232215/pulmonary-tumor-thrombotic-microangiopathy-case-report-and-review-of-literature
#2
Josh Curtis Hutchinson, James W Fulcher, Jeff Hanna, Michael E Ward
Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare rapidly progressive fatal disease that is difficult to diagnosis antemortem. Activation of the coagulation cascade and fibrocellular intimal thickening caused by embolism of tumor cells into pulmonary vasculature leads to extensive pulmonary hypertension and eventually death. We describe a case of PTTM with association of a presumed lung adenocarcinoma primary. Although rare in nature, PTTM should be a considered diagnosis with chronic dyspnea of unknown origin, severe pulmonary hypertension coupled with right-side heart failure, in the absence of pulmonary embolism...
December 11, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29231737/stability-of-polyethylene-glycol-and-zwitterionic-surface-modifications-in-pdms-microfluidic-flow-chambers
#3
Thomas James Plegue, Kyle M Kovach, Alex J Thompson, Joseph A Potkay
Blood-material interactions are crucial to the lifetime, safety, and overall success of a blood contacting devices. Hydrophilic polymer coatings have been employed to improve device lifetime by shielding blood contacting materials from the natural foreign body response, primarily the intrinsic pathway of the coagulation cascade. These coatings have the ability to repel proteins, cells, bacteria, and other micro-organisms. Coatings are desired to have long-term stability, so that the nonthrombogenic and nonfouling effects gained are long lasting...
December 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29231707/sulfonate-groups-and-saccharides-as-essential-structural-elements-in-heparin-mimicking-polymers-used-as-surface-modifiers-optimization-of-relative-contents-for-anti-thrombogenic-properties
#4
Xianshuang Chen, Hao Gu, Zhonglin Lyu, Xiaoli Liu, Lei Wang, Hong Chen, John Law Brash
Blood compatibility is a long sought-after goal in biomaterials research, but remains an elusive one, and in spite of extensive work in this area, there is still no definitive information on the relationship between material properties and blood responses such as coagulation and thrombus formation. Materials modified with heparin-mimicking polymers (HMP) have shown promise, and indeed may be seen as comparable to materials modified with heparin itself. In this work, heparin was conceptualized as consisting of two major structural elements: saccharide-containing and sulfonate-containing units, and polymers based on this concept were developed...
December 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29231172/cefazolin-and-coagulation-disorders-a-case-report
#5
Eugénie Gay, Anne Barthel, Nicolas Rouzic, Basile Henriot, Baptiste Quélennec, Aurélien Lorleac'h, Nathalie Prades, François Schmitt
We report the case of a 79-year-old patient, admitted to the department of infectious diseases at Bretagne Sud Hospital Center for a right calcaneal osteitis, complicated by a pacemaker leads infectious endocarditis. Meticillin sensitive Staphylococcus aureus was documented by blood culture. Antibiotic treatment was established using intravenous cefazolin for an initial 6 weeks period. Prothrombin time (PT) decreased as well as vitamin K dependent factors, without anticoagulation therapy, at day 7 of cefazolin treatment...
December 12, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29230608/combinatorial-therapy-with-two-pro-coagulants-and-one-osmotic-agent-reduces-the-extent-of-the-lesion-in-the-acute-phase-of-spinal-cord-injury-in-the-rat
#6
Mathieu Boutonnet, Elisabeth Laemmel, Eric Vicaut, Jacques Duranteau, Marc Soubeyrand
BACKGROUND: Spinal cord injury (SCI) is a complex disease that leads to a motor, sensitive, and vegetative impairment. So far, single therapies are ineffective for treating SCI in humans and a multifactorial therapeutic approach may be required. The aim of this work was to assess the effect of a triple therapy (TT) associating two pro-coagulant therapies (tranexamic acid and fibrinogen) with an anti-edema therapy (hypertonic saline solution), on the extent of the lesion 24 h post-injury...
December 11, 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/29230595/an-optimized-technique-of-endoscopic-third-ventriculocisternostomy-etv-for-children-with-occlusive-hydrocephalus
#7
Albert Akramovich Sufianov, Ekkehard M Kasper, Rinat Albertovich Sufianov
In this article, we present an optimized minimally invasive technique of ETV for children with occlusive hydrocephalus. The study comprises of 64 consecutive pediatric cases (34 boys and 30 girls aged from 1 month to 5 years) of occlusive hydrocephalus from various etiologies, which were treated with a modified technique of ETV. Mean clinical follow-up period after ETV was 24.2 ± 3.8 months. Application of the new technique made it possible to significantly reduce the length of the soft tissue incision for access, and the use of upgraded instruments allowed to perform a twist drill hole in the skull to less than half a usual size...
December 11, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29230137/hybrid-argon-plasma-coagulation-in-patients-with-barrett-esophagus
#8
Oliver Pech
No abstract text is available yet for this article.
October 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29229890/q192r-polymorphism-in-the-pon1-gene-and-familial-hypercholesterolemia-in-a-saudi-population
#9
Khalid Khalaf Alharbi, May Salem Alnbaheen, Fawiziah Khalaf Alharbi, Rana M Hasanato, Imran Ali Khan
BACKGROUND: Familial hypercholesterolemia (FH) is an autosomal dominant condition characterized by abnormal levels of low-density lipoprotein (LDL) in the blood. FH is a risk factor for atherosclerosis and cardiovascular disease. The relationship between the paraoxonase 1 (PON1) gene, atherosclerosis and coronary artery disease has not been studied in Saudi patients. OBJECTIVE: To investigate the genetic associations of the Q192R polymorphism in the PON1 gene with FH in Saudi patients...
November 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29229544/a-new-textured-polyphosphazene-biomaterial-with-improved-blood-coagulation-and-microbial-infection-responses
#10
Li-Chong Xu, Zhongjing Li, Zhicheng Tian, Chen Chen, Harry R Allcock, Christopher A Siedlecki
A new poly[bis(octafluoropentoxy) phosphazene] (OFP) was synthesized for the purpose of blood contacting medical devices. OFP was further either developed into crosslinkable polyphosphazene (X-OFP) or blended with polyurethane (PU) as the mixture (OFP/PU) for improvement of mechanical property of polyphosphazene polymers. All the materials were fabricated as smooth films or further textured with submicron pillars for the assay of antimicrobial and antithrombotic properties. Results showed that crosslinkable OFP (X-OFP) and blends of OFP/PU successfully improved the mechanical strength of OFP and fewer defects of pillars were found on the textured polyphosphazene surfaces...
December 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29229467/renal-involvement-in-pmm2-cdg-a-mini-review
#11
REVIEW
Ruqaiah Altassan, Peter Witters, Zubaida Saifudeen, Dulce Quelhas, Jaak Jaeken, Elena Levtchenko, David Cassiman, Eva Morava
Phosphomannomutase 2 deficiency (PMM2-CDG) is the most common N-linked glycosylation disorder. The majority of patients present with a multisystem phenotype, including central nervous system involvement, hepatopathy, gastrointestinal and cardiac symptoms, endocrine dysfunction and abnormal coagulation. Renal abnormalities including congenital malformations and altered renal function are part of the multisystem manifestations of congenital disorders of glycosylation. We reviewed the literature on 933 patients with molecularly and/or enzymatically confirmed PMM2 deficiency to evaluate the incidence of renal involvement in PMM2-CDG...
November 28, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29228619/fibrin-bearing-microparticles-marker-of-thrombo-embolic-events-in-pancreatic-and-colorectal-cancers
#12
Diane Mege, Lydie Crescence, Mehdi Ouaissi, Igor Sielezneff, Regis Guieu, Françoise Dignat-George, Christophe Dubois, Laurence Panicot-Dubois
Background: Microparticles (MPs) are plasma membrane-derived extracellular vesicles present in the bloodstream. We have described a specific signature of MPs, called microparticulosome, in colorectal (CRC) and pancreatic (PC) cancers. We observed that levels of fibrin-bearing MPs were significantly increased in patients suffering from PC and CRC in comparison with control groups. Here, we hypothesised that fibrin-MPs may constitute a relevant biomarker of thrombosis associated with cancer...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228388/caspase-inhibition-reduces-hepatic-tissue-factor-driven-coagulation-in-vitro-and-in-vivo
#13
Anna K Kopec, Alfred P Spada, Patricia C Contreras, Nigel Mackman, James P Luyendyk
Tissue factor (TF) is the primary activator of the blood coagulation cascade. Liver parenchymal cells (i.e., hepatocytes) express TF in a molecular state that lacks procoagulant activity. Hepatocyte apoptosis is an important feature of acute and chronic liver diseases, and Fas-induced apoptosis increases hepatocyte TF procoagulant activity in vitro. We determined the impact of a pan-caspase inhibitor, IDN-7314, on hepatocyte TF activity in vitro and TF-mediated coagulation in vivo. Treatment of primary mouse hepatocytes with the Fas death receptor ligand (Jo2, 0...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29227349/severe-immune-mediated-thrombocytopenia-after-intravitreal-bevacizumab-injection
#14
Tianyi Li, Derek T Witteman, Eric D Weber, Warren L Alexander, John D Schaber
PURPOSE: To report a case of severe immune-mediated thrombocytopenia after intravitreal bevacizumab administration. METHODS: A 77-year-old man with right-sided macular degeneration received intravitreal bevacizumab. After his third treatment dose, he was hospitalized for symptomatic thrombocytopenia (platelet count of 3 k/μL) and underwent testing to determine the etiology. RESULTS: Initial platelet counts on admission were 3 k/μL, down from 238 k/μL 3 months before...
December 8, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29227293/an-ex-vivo-model-of-shear-rate-based-activation-of-blood-coagulation
#15
Marco Ranucci, Matteo Ranucci, Ekaterina Baryshnikova
: The study presents a model of shear-stress-based platelet activation. Twenty-eight patients (22 free from anticoagulants and major antiplatelet agents, and six under the effects of P2Y12 platelet inhibitors) participated. The main purpose was to verify the hypothesis that a model of shear-dependent blood activation does not require artificial activators to trigger clot formation. Whole blood collected from the patients received platelet function tests [ADPtest and thrombin receptor-activating peptide (TRAP)test] and was tested with a cone-on-plate viscosimeter at a shear rate of 100 s...
December 8, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29226987/protective-effect-of-platelet-rich-plasma-on-urethral-injury-model-of-male-rats
#16
Hasan H Tavukcu, Ömer Aytaç, Fatih Atuğ, Burçin Alev, Özge Çevik, Nurdan Bülbül, Ayşen Yarat, Şule Çetinel, Göksel Şener, Haluk Kulaksızoğlu
AIMS: Urethral stricture (US) formation is caused by fibrosis after excessive collagen formation following an injury or trauma to the urethra. In this study, we aimed to evaluate the effects of platelet-rich plasma (PRP) on a urethral injury (UI) model of male rats. METHODS: A UI model was used by applying a coagulation current to the urethras of male rats. There were four groups with six rats in each: control group, PRP applied to naive urethra, UI group, and UI with PRP application...
December 11, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29226714/-analysis-of-d-dimer-laboratory-findings-and-clinical-evaluation
#17
János Jákó
D-dimer is a product of the enzymatic degradation of the fibrinogen-fibrin molecule, and its existence is demonstrable in circulation. The test based limits may be considered as normal values. It was first thought to be a product of coagulation, then a product of lysis. High-concentration D-dimer in blood detected in thromboembolic diseases is considered to be of diagnostic value. In cases where thromboembolism was ruled out despite elevated titres but heparin (LMWH) or CLOPIDOGREL was given as a cautionary measure, we found that D-dimer values remained elevated...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29226657/short-centrifugation-to-ameliorate-turn-around-time-in-routine-coagulation-testing
#18
Albrecht Pfaefflin, Karen Schuster, Ruediger Braun
BACKGROUND: Fast and timely analysis of coagulation parameters is mandatory in hospital laboratories as the results are decisive for diagnosis and treatment in emergency patients. An important factor in TAT (turn-around time) prolongation is centrifugation of all samples prior to analysis. According to literature and most current SOPs (standard operation protocols) centrifugation time is given with 10 minutes at approximately 2,000 g and cannot be reduced without infringement of standards...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29226341/inflammation-and-its-consequences-after-surgical-versus-transcatheter-aortic-valve-replacement
#19
Florian Uhle, Christian Castrup, Anna-Maria Necaev, Philippe Grieshaber, Christoph Lichtenstern, Markus Alexander Weigand, Andreas Böning
Symptomatic aortic stenosis can be treated by surgical aortic valve replacement (SAVR) or transcatheter aortic valve replacement (TAVR), the latter of which is regarded as a minimally invasive procedure. Differences between these procedures regarding immune responses or changes in coagulation and neurocognitive function have thus far been evaluated only sparsely. We carried out a prospective, single-center, nonrandomized explorative study with 38 patients. Thirteen patients were subjected to either SAVR or transfemoral (TF-) TAVR, and 12 patients underwent transapical (TA-) TAVR...
December 11, 2017: Artificial Organs
https://www.readbyqxmd.com/read/29226218/clinical-effectiveness-of-the-pocket-creation-method-for-colorectal-endoscopic-submucosal-dissection
#20
Akira Kanamori, Masakazu Nakano, Masayuki Kondo, Takanao Tanaka, Keiichiro Abe, Tsunehiro Suzuki, Hitoshi Kino, Yoshihito Kaneko, Chieko Tsuchida, Kouhei Tsuchida, Naoto Yoshitake, Keiichi Tominaga, Yasuo Imai, Hideyuki Hiraishi
Background and study aims : Endoscopic submucosal dissection (ESD) is a technically advanced procedure for colorectal tumors. Hayashi et al. invented the "pocket-creation method (PCM)," and reported that Is-type lesions with fibrosis could be efficaciously and safely resected. However, only case studies have been published, and there are no previous reports on the usefulness of PCM in colorectal ESD for all lesions, as compared with the conventional method. This study aimed to evaluate the effectiveness and safety of PCM in colorectal ESD...
December 2017: Endoscopy International Open
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