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Coagulation Factor

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https://www.readbyqxmd.com/read/29679947/tissue-factor-coagulant-activity-is-regulated-by-the-plasma-membrane-microenvironment
#1
Yuanjie Yu, Anita N Böing, Chi M Hau, Najat Hajji, Wolfram Ruf, Auguste Sturk, Rienk Nieuwland
BACKGROUND:  Tissue factor (TF) can be present in a non-coagulant and coagulant form. Whether the coagulant activity is affected by the plasma membrane microenvironment is unexplored. OBJECTIVE:  This article studies the presence and coagulant activity of human TF in plasma membrane micro-domains. METHODS:  Plasma membranes were isolated from human MIA PaCa2 cells, MDA-MB-231 cells and human vascular smooth muscle cells by Percoll gradient ultracentrifugation after cell disruption...
April 21, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29679592/multiple-coagulation-factor-deficiency-protein-2-as-a-crucial-component-in-metastasis-of-human-oral-cancer
#2
Megumi Fukamachi, Atsushi Kasamatsu, Yosuke Endo-Sakamoto, Kazuaki Fushimi, Hiroki Kasama, Manabu Iyoda, Yasuyuki Minakawa, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Multiple coagulation factor deficiency protein 2 (MCFD2), a binding partner of lectin mannose binding 1 (LMAN1), causes combined deficiencies of coagulation factors V and VIII. MCFD2 function in inherited hematologic disorders is well elucidated; however, little is known about its role in human tumorigenesis. The aim of the current study was to investigate the states of MCFD2 in oral squamous cell carcinoma (OSCC). The expression of MCFD2 was up-regulated significantly in all cell lines examined. Evaluation of the cellular functions associated with tumoral metastasis showed that MCFD2 knockdown (shMCFD2) cells exhibited significantly lower cellular invasiveness and migration and higher cellular adhesion compared with shControl cells...
April 18, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29675904/risk-factors-for-fetal-death-after-radiofrequency-ablation-for-complicated-monochorionic-twin-pregnancies
#3
Luming Sun, Gang Zou, Yingjun Yang, Fenhe Zhou, Duan Tao
OBJECTIVE: Radiofrequency ablation (RFA) is a management alternative for complicated monochorionic twin pregnancies. The purpose of this study is to evaluate risk factors for fetal death after RFA. METHODS: An observational study was performed to document the perinatal outcomes of all cases undergoing fetal reduction using RFA from 2010 to 2016 at the Shanghai First Maternity and Infant Hospital. A multiple regression model was built to identify predictors of the death of the remaining fetus after RFA...
April 19, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29674851/gastrointestinal-obstruction-caused-by-solidification-and-coagulation-of-enteral-nutrition-pathogenetic-mechanisms-and-potential-risk-factors
#4
Grazia Leonello, Antonio Giacomo Rizzo, Viviane Di Dio, Antonio Soriano, Claudia Previti, Grazia Giulia Pantè, Claudio Mastrojeni, Sebastiano Pantè
Enteral nutrition (EN) is preferred in order to provide nutrition and reduce catabolism in critically ill patients. Recent studies suggest that the use of EN is successful and complications are rare. However, an underestimated mechanical complication of tube feedings seen in critically ill patients is the coagulation and solidification of the EN causing gastrointestinal obstruction. This report describes two clinical cases (1.23% of all cases seen at our clinic) of obstruction and perforation of the small bowel secondary to the solidification of EN...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29672166/the-effect-of-leech-extracts-on-endothelial-cell-coagulation-related-factors-and-endothelial-dysfuction-related-molecules
#5
Lixu Xu, Xue Li, E Zhang, Hao Liang, Weiting Li, Shangyi Wang, Shuliang Song, Aiguo Ji
OBJECTIVE: This study was focused on screening leech extracts to identify those with little or no anti-coagulation effect or with significant anti-endothelial dysfunction activity. METHODS: Different leech extracts were prepared by enzymolysis and microbial transformation and their cytotoxicity were measured by MTT assay. The effect of different leech extracts on mRNA expression of coagulation-related factors (PAI, vWF, tPA, PS, TFPI, TM) was quantified by RT-PCR...
April 19, 2018: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29671861/p2y12-antagonist-ticagrelor-inhibits-the-release-of-procoagulant-extracellular-vesicles-from-activated-platelets-preliminary-results
#6
Aleksandra Gasecka, Rienk Nieuwland, Edwin van der Pol, Najat Hajji, Agata Ćwiek, Kinga Pluta, Michał Konwerski, Krzysztof J Filipiak
BACKGROUND: Activated platelets release platelet extracellular vesicles (PEVs). Adenosine diphosphate (ADP) receptors P2Y1 and P2Y12 both play a role in platelet activation, The present hypothesis herein is that the inhibition of these receptors may affect the release of PEVs. METHODS: Platelet-rich plasma from 10 healthy subjects was incubated with saline, P2Y1 antagonist MRS2179 (100 µM), P2Y12 antagonist ticagrelor (1 µM), and a combination of both antagonists...
April 19, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29671011/-rectal-bleeding-in-a-60-year-old-woman-under-anticoagulation-and-platelet-aggregation-inhibition
#7
J Pohlan, N Willamowski, C Jürgensen, E Zimmermann, M Möckel
CASE REPORT: We report on a woman with lower gastrointestinal bleeding under effective oral anticoagulation with both phenprocoumon and apixaban (with intention to switch to the latter) as well as the antiplatelet agent acetylsalicylic acid for aortic bifurcation kissing stents after stent thrombosis. Our patient presented with weakness and rectal bleeding. Upon examination, she looked anemic and had sinus tachycardia (104 beats per minute). The digital rectal examination revealed bright red blood mixed with clots...
April 18, 2018: Der Internist
https://www.readbyqxmd.com/read/29669440/thrombin-generation-assay-detects-moderate-intensity-statin-induced-reduction-of-hypercoagulability-in-diabetes
#8
Hee Sue Park, Ja-Yoon Gu, Hyun Ju Yoo, Se Eun Han, Chan Ho Park, Young Il Kim, Il Sung Nam-Goong, Eun Sook Kim, Hyun Kyung Kim
Statins not only have a lipid-lowering effect but also reduce inflammation and have an antithrombotic effect. Since hypercoagulability assessed by thrombin generation assay (TGA) and increased formation of neutrophil extracellular traps (NET) were demonstrated in diabetes, we investigated whether statin therapy in diabetes modifies coagulation status and NET formation. Twenty-five consecutive patients with diabetes were recruited. Global coagulation assays (prothrombin time [PT], activated partial thromboplastin time [aPTT], and TGA) and NET markers (DNA-histone complex, cell-free DNA, and neutrophil elastase) were measured before and after 3-month moderate-intensity statin therapy...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29667397/asymmetric-synthesis-of-silanediol-inhibitors-for-the-serine-protease-coagulation-cascade-enzyme-fxia
#9
Hoan Quoc Duong, Scott McN Sieburth
Silanediol peptidomimetics have been prepared, designed to inhibit the serine protease enzyme Factor XIa (FXIa) for treatment of thrombosis without complete interruption of normal hemostasis. These Arg-[Si]-Ala analogs of the FXIa substrate (FIX) are the first silanediol dipeptide analogs to carry a basic guanidine group. Control of stereochemistry was accomplished using catalytic asymmetric hydrosilylation and addition of a silyllithium intermediate to the Davis-Ellman sulfinimine.
April 18, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29665924/-analysis-of-phenotype-and-l12r-mutation-in-signal-peptide-and-3-non-translation-region-c11814-insaa-mutation-of-f7-gene-in-a-family-with-hereditary-coagulation-factor-vii-deficiency
#10
Shan Liu, Jing-Yu Zhang, Zheng-Rong Li, Yan Wang, Zhi-Yun Niu, Feng-Ru Lin
OBJECTIVE: To examine one young female patient with hereditary FVII deficiency and her family members, to observe the gene mutation and clinical phenotype, and to investigate the molecular mechanism of the dysfunction. METHODS: Prothrombin time (PT), activated partial thromoploastin time (APTT), fibrinogen (Fg) and FVII activity (FVII:C) and FVII antigen (FVII:Ag) were tested. The gene mutations were sought by DNA sequencing for all of the exons and flanks, 5' and 3' non-translation region of F7 gene...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29664991/haemostatic-therapies-for-acute-spontaneous-intracerebral-haemorrhage
#11
REVIEW
Rustam Al-Shahi Salman, Zhe Kang Law, Philip M Bath, Thorsten Steiner, Nikola Sprigg
BACKGROUND: Outcome after spontaneous (non-traumatic) intracerebral haemorrhage (ICH) is influenced by haematoma volume; up to one-third of ICHs enlarge within 24 hours of onset. Early haemostatic therapy might improve outcome by limiting haematoma growth. This is an update of a Cochrane Review first published in 2006, and last updated in 2009. OBJECTIVES: To examine 1) the effectiveness and safety of individual classes of haemostatic therapies, compared against placebo or open control, in adults with acute spontaneous intracerebral haemorrhage, and 2) the effects of each class of haemostatic therapy according to the type of antithrombotic drug taken immediately before ICH onset (i...
April 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29663995/-risk-factors-of-atrial-fibrillation-in-critical-ill-patients
#12
Jianyu Fu, Hongying Bi, Yunsong Xia, Hui Fang, Xu Liu, Yan Tang, Difen Wang
OBJECTIVE: To observe the clinical features of atrial fibrillation (AF) patients, and to explore the correlation between the routine detection index and the new-onset AF and to find out risk factors for new AF in critically ill patients. METHODS: A prospective observational study was conducted. The patients with AF admitted to intensive care unit (ICU) of the Affiliated Hospital of Guizhou Medical University from March 2016 to June 2017 were enrolled. The patients were divided into new-onset AF group and past-existed AF group according to their past history of AF (including persistent AF, paroxysmal AF or permanent AF)...
April 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29661410/use-of-prothrombin-complex-concentrate-for-management-of-coagulopathy-after-cardiac-surgery-a-propensity-score-matched-comparison-to-plasma
#13
J Fitzgerald, M Lenihan, J Callum, S A McCluskey, C Srinivas, A van Rensburg, K Karkouti
BACKGROUND: An important cause of coagulopathy in cardiac surgery is impaired thrombin generation. While plasma is often used to correct this element of the coagulopathy, studies in vitro suggest that prothrombin complex concentrates (PCCs) might be more effective. Comparative data, however, are scant. METHODS: We compared the outcomes of those who received only plasma with those who received PCCs (with or without plasma) for management of coagulopathy in patients who underwent cardiac surgery with cardiopulmonary bypass at a single institution from 2012 to 2016...
May 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29658195/extracellular-vesicles-from-human-saliva-promote-haemostasis-by-delivering-coagulant-tissue-factor-to-activated-platelets
#14
Y Yu, E Gool, R J Berckmans, F A W Coumans, A D Barendrecht, C Maas, N N van der Wel, P Altevogt, A Sturk, R Nieuwland
BACKGROUND: Extracellular vesicles (EVs) from human saliva expose coagulant tissue factor (TF). Whether such TF-exposing EVs contribute to haemostasis, however, is unknown. Recently, in a mice model, tumour cell-derived EVs were shown to deliver coagulant TF to activated platelets at a site of vascular injury via interaction between P-selectin glycoprotein ligand-1 (PSGL-1) and P-selectin. OBJECTIVES: We hypothesized that salivary EVs may deliver coagulant TF to activated platelets via interaction with P-selectin...
April 15, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29658149/coagulation-parameters-following-ehv-1-infection-in-horses
#15
M E Wilson, C L Holz, A K Kopec, J J Dau, J P Luyendyk, G Soboll Hussey
BACKGROUND: Equine herpesvirus type 1 (EHV-1) is the cause of respiratory disease, abortion storms, and outbreaks of herpesvirus myeloencephalopathy (EHM). Infection of the spinal cord is characterised by multifocal regions of virally infected vascular endothelia, associated with vasculitis, thrombosis and haemorrhage that result in ischaemia and organ dysfunction. However, the mechanism of thrombosis in affected horses is unknown. OBJECTIVES: To evaluate tissue factor (TF) procoagulant activity and thrombin-antithrombin complexes (TAT) levels in horses following infection with EHV-1...
April 15, 2018: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29657559/activation-peptide-of-the-coagulation-factor-xiii-ap-f13a1-as-a-new-biomarker-for-the-screening-of-colorectal-cancer
#16
Julien Peltier, Jean-Pierre Roperch, Stéphane Audebert, Jean-Paul Borg, Luc Camoin
Background: Colorectal cancer (CRC) remains a major cause of cancer fatalities in developed countries. The risk of death is correlated to the stage of CRC during the primary diagnosis. Early diagnosis is closely associated with enhanced survival rate. We therefore investigated the AP-F13A1 as a potential protein marker of CRC. Methods: The protein expression of FXIII in 40 serum samples was evaluated by enzyme-linked immunosorbent assays. Additionally, targeted proteomic assays (LC-PRM) were used to evaluate the expression of the activation peptide of F13A1 (AP-F13A1) in a further 113 serum samples...
2018: Clinical Proteomics
https://www.readbyqxmd.com/read/29656962/treatment-of-platelet-concentrates-and-plasma-with-riboflavin-and-uv-light-impact-in-bacterial-reduction
#17
J M Bello-López, L Delgado-Balbuena, D Rojas-Huidobro, J Rojo-Medina
OBJECTIVES: Transfusion of hemocomponents is essential for clinical and surgical procedures and therefore their safety has increased. An option for pathogen reduction includes the combination of riboflavin and UV light. To our knowledge, there are no studies in Latin America that demonstrate the effectiveness of the pathogen reduction in hemocomponents. The objective of this work was to evaluate the efficiency of a pathogens reduction system in platelets concentrates (PC) and plasma. MATERIALS AND METHODS: PC and plasma were contaminated with Escherichia coli, Klebsiella pneumoniae, Streptococcus pyogenes and Staphylococcus epidermidis at 104 to 106  CFU and subjected to bacterial reduction...
April 12, 2018: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/29656466/evaluation-of-high-fat-high-fructose-diet-treatment-in-factor-viii-coagulation-factor-deficient-mouse-model
#18
Alaknanda Mishra, Shailendra Arindkar, Preeti Sahay, Jerald Mahesh Kumar, Pramod K Upadhyay, Subeer S Majumdar, Perumal Nagarajan
Non-alcoholic fatty liver disease (NAFLD)-like conditions enhance the production and action of clotting factors in humans. However, studies examining the effect of NAFLD due to high-fat high-fructose (HFHF) diet in factor VIII-deficient (haemophilia A) animals or patients have not been reported previously. In this study, we investigated the individual role of factor VIII in the progression of diet-induced NAFLD in the factor 8-/- (F8-/- ) mouse model system and its consequences on the haemophilic status of the mice...
April 15, 2018: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/29656192/in-vitro-bioanalysis-of-drinking-water-from-source-to-tap
#19
Anna Kjerstine Rosenmai, Johan Lundqvist, Théo le Godec, Åsa Ohlsson, Rikard Tröger, Björn Hellman, Agneta Oskarsson
The presence of chemical pollutants in sources of drinking water is a key environmental problem threatening public health. Efficient removal of pollutants in drinking water treatment plants (DWTPs) is needed as well as methods for assessment of the total impact of all present chemicals on water quality. In the present study we have analyzed the bioactivity of water samples from source to tap, including effects of various water treatments in a DWTP, using a battery of cell-based bioassays, covering health-relevant endpoints...
April 6, 2018: Water Research
https://www.readbyqxmd.com/read/29655462/obesity-thrombotic-risk-and-inflammation-in-cancer
#20
Benjamín Rubio-Jurado, Luz-Ma-Adriana Balderas-Peña, Eduardo E García-Luna, María G Zavala-Cerna, Carlos Riebeling-Navarro, Pedro A Reyes, Arnulfo H Nava-Zavala
Neoplasms exhibits a high incidence and mortality rates due to their complex and commonly overlapping clinical, biochemical, and morphologic profiles influenced by acquired or inherited molecular abnormalities, cell of origin, and level of differentiation. Obesity appears related to ~20% of cancers including endometrial, esophageal, colorectal, postmenopausal breast, prostate, and renal. Several factors other than obesity, i.e., insulin, insulin-like growth factor, sexual hormones, and adipokines may play a potential role in neoplasia...
2018: Advances in Clinical Chemistry
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