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Fibrinogen Concentrate

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https://www.readbyqxmd.com/read/29776960/effect-of-combined-treatment-with-folic-acid-vitamin-b-6-and-vitamin-b-12-on-plasma-biomarkers-of-inflammation-and-endothelial-dysfunction-in-women
#1
William G Christen, Nancy R Cook, Martin Van Denburgh, Elaine Zaharris, Christine M Albert, JoAnn E Manson
BACKGROUND: The aim of this study was to determine whether reducing plasma homocysteine concentrations with long-term, combined treatment with folic acid, vitamin B6 , and vitamin B12 alters plasma biomarkers of inflammation and endothelial dysfunction in women at increased risk of cardiovascular disease. METHODS AND RESULTS: We conducted a blood substudy of 300 treatment-adherent participants (150 in the active treatment group, 150 in the placebo group) in the WAFACS (Women's Antioxidant and Folic Acid Cardiovascular Study), a randomized, double-blind, placebo-controlled trial testing a daily combination of folic acid (2...
May 18, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29774108/prognostic-and-diagnostic-impact-of-fibrinogen-neutrophil-to-lymphocyte-ratio-and-platelet-to-lymphocyte-ratio-on-thymic-epithelial-tumors-outcome
#2
Stefan Janik, Thomas Raunegger, Philipp Hacker, Bahil Ghanim, Elisa Einwallner, Leonhard Müllauer, Ana-Iris Schiefer, Julia Moser, Walter Klepetko, Hendrik Jan Ankersmit, Bernhard Moser
Background: Peripheral blood-derived inflammation-based markers, such as Neutrophil-to-Lymphocyte Ratio (NLR), Platelet-to-Lymphocyte Ratio (PLR), and Fibrinogen have been identified as prognostic markers in various solid malignancies. Here we aimed to investigate the prognostic and diagnostic impact of NLR, PLR, and Fibrinogen in patients with thymic epithelial tumors (TETs). Results: Pretreatment Fibrinogen serum concentrations, NLRs and PLRs were highest in patients with TCs and advanced tumor stages...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29772969/case-control-study-of-plasma-mean-platelet-component-concentration-and-survival-analysis-for-dogs-with-immune-mediated-hemolytic-anemia
#3
Andrea Zoia, Magda Gerou-Ferriani, Michele Drigo, Marco Caldin
OBJECTIVE To determine whether dogs with immune-mediated hemolytic anemia (IMHA) had a low plasma mean platelet component (MPC) concentration and whether MPC was associated with outcome. DESIGN Retrospective case-control study and survival analysis. ANIMALS 95 dogs with IMHA (cases) as well as 95 healthy dogs and 95 sick dogs without IMHA (controls) matched to cases by age, reproductive status, and breed. PROCEDURES Plasma MPC concentration at initial examination was compared among groups. For dogs with IMHA only, sex, age, serum urea and bilirubin concentrations, Hct, platelet count, and plasma fibrinogen, D-dimer, and MPC concentrations were evaluated for associations with survival to 42 days after initial examination...
June 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29771328/association-of-preoperative-plasma-fibrinogen-level-with-postoperative-bleeding-after-on-pump-coronary-bypass-surgery-does-plasma-fibrinogen-level-affect-the-amount-of-postoperative-bleeding
#4
Sameh Alagha, Murat Songur, Tugba Avci, Kerem Vural, Sadi Kaplan
OBJECTIVES: Our primary aim was to investigate the association between the preoperative concentration of plasma fibrinogen and the volume of postoperative bleeding. Our secondary aim was to identify whether there is a possible correlation between the patients' different characteristics and haemostatic laboratory variables and the postoperative amount of bleeding after on-pump coronary artery bypass grafting procedures. METHODS: A total of 550 adult patients undergoing isolated coronary artery bypass grafting on cardiopulmonary bypass in our hospital were enrolled and investigated retrospectively...
May 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29769425/gender-differences-in-hemostatic-and-inflammatory-factors-in-patients-with-acute-coronary-syndromes-a-pilot-study
#5
A Siennicka, M Jastrzebska, K Smialkowska, S Oledzki, K Chelstowski, M Klysz, J Clark, Z Kornacewicz-Jach
Many studies have shown gender differences in the progress of acute coronary syndromes (ACS). These differences include, amongst others, processes involved in hemostasis and inflammation, and in the present study we put forward the hypothesis that these are the primary cause of other differences. The study included 66 ACS patients (27 women and 39 men) aged 43 - 83 years, 23 with non-ST-elevation myocardial infarction (NSTEMI) and 43 with ST-elevation myocardial infarction (STEMI). Blood samples were taken on day 3 (NSTEMI) or day 5 (STEMI) after hospitalization, and fibrinogen, D-dimers, von Willebrand factor, C-reactive protein and interleukin-6 levels measured...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29768734/in-vitro-efficacy-of-pro-and-anticoagulant-strategies-in-compensated-and-acutely-ill-patients-with-cirrhosis
#6
Ton Lisman, Simone Kleiss, Vishal C Patel, Caleb Fisher, Jelle Adelmeijer, Sarah Bos, Arjuna Singanayagam, Sidsel Hyldgaard Stoy, Debbie L Shawcross, William Bernal
BACKGROUND & AIMS: A simultaneous decline in pro- and anticoagulant drivers in patients with liver diseases results in a 'rebalanced' hemostatic system, even in acutely ill patients. Nevertheless, both bleeding and thrombotic events are common. Here, we explored efficacy of pro- and antihemostatic strategies in compensated and acutely ill cirrhotics which may be unpredictable given the profound hemostatic changes. METHODS: We tested the effects in vitro of the addition of clinically relevant doses of commonly used pro- and antihemostatic strategies in plasma from healthy individuals (n=30) and patients with compensated (n=18) and acutely decompensated cirrhosis (n=18), and acute-on-chronic liver failure (n=10)...
May 16, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29766804/cyclophilin-a-a-predictive-biomarker-of-carotid-stenosis-in-cerebral-ischemic-stroke
#7
Chen-Shu Chang, Shih-Li Su, Chen-Ling Kuo, Ching-Shan Huang, Wan-Min Tseng, Song-Shei Lin, Chin-San Liu
BACKGROUND: Cyclophilin A plays a pathogenic role in the development and progression of atherosclerosis, which can be assessed by measuring carotid intima-media thickness. The primary aim of this study was to examine the interaction between plasma Cyclophilin A level and carotid intima-media thickness in patients with acute ischemic stroke. METHOD: Plasma concentration of Cyclophilin A was measured on admission in 66 consecutive patients who had been hospitalized for acute cerebral stroke and in 52 case-control subjects without a history of acute stroke...
May 16, 2018: Current Neurovascular Research
https://www.readbyqxmd.com/read/29744434/-in-situ-assembly-of-fibrinogen-hyaluronic-acid-hydrogel-via-knob-hole-interaction-for-3d-cellular-engineering
#8
Shengjie Huang, Chunfen Wang, Jingwei Xu, Lie Ma, Changyou Gao
Hyaluronic acid (HA)-based hydrogels have applied widely for biomedical applications due to its biocompatibility and biodegradability. However, the use of initiators or crosslinkers during the hydrogel formation may cause cytotoxicity and thereby impair the biocompatibility. Inspired by the crosslinking mechanism of fibrin gel, a novel HA-based hydrogel was developed via the in situ supramolecular assembly based on knob-hole interactions between fibrinogen and knob-grafted HA (knob-g-HA) in this study. The knob-grafted HA was synthesized by coupling knob peptides (GPRPAAC, a mimic peptide of fibrin knob A) to HA via Michael addition...
December 2017: Bioactive Materials
https://www.readbyqxmd.com/read/29740114/significantly-increased-low-shear-rate-viscosity-blood-elastic-modulus-and-rbc-aggregation-in-adults-following-cardiac-surgery
#9
Yi-Fan Wu, Po-Shun Hsu, Chien-Sung Tsai, Pin-Cheng Pan, Yeng-Long Chen
Open heart surgeries are common for treating ischemic and heart valve disease. During cardiac surgery, cardiopulmonary bypass (CPB) can temporarily take over the function of heart and lungs. However, elevated red blood cell (RBC) aggregation may lead to the common side-effects such as microinfarction. We investigated blood physical properties changes and the correlation between blood microstructure, viscoelastic response and biochemical changes following surgery with CPB. We examined shear-rate dependent blood viscosity, elasticity and RBC aggregate size in the pre-surgery disease state, post-surgery state and long-term recovery state of cardiac surgical patients...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738437/study-of-fluorinated-quantum-dots-protein-interactions-at-the-oil-water-interface-by-interfacial-surface-tension-changes
#10
Carolina Carrillo-Carrión, Marta Gallego, Wolfgang J Parak, Mónica Carril
Understanding the interaction of nanoparticles with proteins and how this interaction modifies the nanoparticles’ surface is crucial before their use for biomedical applications. Since fluorinated materials are emerging as potential imaging probes and delivery vehicles, their interaction with proteins of biological interest must be studied in order to be able to predict their performance in real scenarios. It is known that fluorinated planar surfaces may repel the unspecific adsorption of proteins but little is known regarding the same process on fluorinated nanoparticles due to the scarce examples in the literature...
May 8, 2018: Materials
https://www.readbyqxmd.com/read/29716485/the-effects-of-haemodilution-with-succinylated-gelatin-solution-on-coagulation-in-vitro-as-assessed-by-thromboelastometry-and-impedance-multiple-electrode-aggregometry
#11
Pca Kam, S Varanasi, K X Yang
We investigated the in vitro viscoelastic changes of progressive haemodilution with succinylated gelatin (SG) solution compared with normal saline (NS) using rotational thromboelastometry (ROTEM®). Whole blood (WB) samples obtained from 20 healthy volunteers were diluted in vitro with SG solution or NS by 10%, 20% and 40%. Fibrinogen concentration and ROTEM (EXTEM, FIBTEM) variables including coagulation time (CT), clot formation time (CFT), α-angle, and maximum clot firmness (MCF) were measured in the undiluted sample and at each degree of haemodilution...
May 2018: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29709171/bovine-serum-albumin-and-fibrinogen-adsorption-at-the-316l-stainless-steel-aqueous-interface
#12
Mary H Wood, Charanee Galabada Payagalage, Thomas Geue
The binding of bovine serum albumin (BSA) to a 316L stainless steel surface from a buffer solution has been characterised using neutron reflectometry (NR) and quartz crystal microbalance (QCM) measurements; coverage at all concentrations up to a near-physiological concentration was found to be relatively low (< 20 %); the protein followed a two-step isotherm adsorption model type and the overall thickness at the higher concentrations (around 80 Å) suggested possible multilayering and/or protein unfolding...
April 30, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29708302/congenital-dysfibrinogenaemia-assessed-by-whole-blood-thromboelastography
#13
A Wei, L Liao, L Xiang, J Yan, W Yang, G Nai, M Luo, D Deng, F Lin
INTRODUCTION: Congenital dysfibrinogenaemia (CD) is a rare hereditary blood disorder, and thromboelastography (TEG) can comprehensively assess the clotting function of patients. However, only few studies have focussed on the application of TEG in CD. We aim to investigate the clinical value of TEG in congenital CD. METHODS: We performed TEG and routine coagulation tests, including plasma prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), functional fibrinogen (Fg) concentration (Clauss method) and Fg concentration (PT-derived method) tests, in 17 patients with CD (experimental group) and 28 healthy individuals (control group)...
April 30, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29704938/evaluation-of-the-humoral-immune-response-to-a-multicomponent-recombinant-vaccine-against-s-aureus-in-healthy-pregnant-heifers
#14
N Pujato, C M Camussone, M S Renna, M S Perrig, B Morein, L F Calvinho, I S Marcipar
Staphylococcus aureus is a worldwide pathogen that causes mastitis in dairy herds. Shortcomings in control programs have encouraged the development of vaccines against this pathogen. This study evaluated the vaccine candidate VacR, which included recombinant S. aureus protein clumping factor A (rClf), fibronectin binding protein A (rFnBP) and hemolysin beta (rBt), formulated with a novel immune-stimulating complex. Comparisons were made between healthy pregnant heifers that received either VacR (n=8; VacR group) or phosphate buffered saline (PBS) plus adjuvant (control group) SC in the supramammary lymph node area on days 45 and 15 before the expected calving date...
May 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29698898/carbon-nanotube-and-nanofiber-exposure-and-sputum-and-blood-biomarkers-of-early-effect-among-u-s-workers
#15
John D Beard, Aaron Erdely, Matthew M Dahm, Marie A de Perio, M Eileen Birch, Douglas E Evans, Joseph E Fernback, Tracy Eye, Vamsi Kodali, Robert R Mercer, Stephen J Bertke, Mary K Schubauer-Berigan
BACKGROUND: Carbon nanotubes and nanofibers (CNT/F) are increasingly used for diverse applications. Although animal studies suggest CNT/F exposure may cause deleterious health effects, human epidemiological studies have typically been small, confined to single workplaces, and limited in exposure assessment. OBJECTIVES: We conducted an industrywide cross-sectional epidemiological study of 108 workers from 12 U.S. sites to evaluate associations between occupational CNT/F exposure and sputum and blood biomarkers of early effect...
April 23, 2018: Environment International
https://www.readbyqxmd.com/read/29684616/serum-fibrinogen-predicts-diabetic-esrd-in-patients-with-type-2-diabetes-mellitus
#16
Junlin Zhang, Yiting Wang, Rui Zhang, Hanyu Li, Qianqian Han, Yucheng Wu, Shanshan Wang, Ruikun Guo, Tingli Wang, Li Li, Fang Liu
AIMS: Although increased serum fibrinogen level was often observed in patients with diabetic nephropathy (DN), its association with DN severity and progression remains unclear. The aim of this study was to investigate the relationship between the serum fibrinogen levels and clinicopathological features and renal prognosis in Chinese patients with type 2 diabetes mellitus (T2DM) and DN. METHODS: A total of 174 patients with T2DM and biopsy-proven DN were enrolled...
April 20, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29679380/a-non-myeloablative-chimeric-mouse-model-accurately-defines-microglia-and-macrophage-contribution-in-glioma
#17
Kenny Yu, A Saam Youshani, Fiona L Wilkinson, Claire O'Leary, Peter Cook, Liisi Laaniste, Aiyin Liao, Dominic Mosses, Christopher Waugh, Hannah Shorrock, Omar Pathmanaban, Andrew Macdonald, Ian Kamaly-Asl, Federico Roncaroli, Brian W Bigger
AIMS: Resident and peripherally-derived glioma associated microglia/macrophages (GAMM) play a key role in driving tumour progression, angiogenesis, invasion, and attenuating host immune responses. Differentiating these cells' origins is challenging and current pre-clinical models such as irradiation-based adoptive transfer, parabiosis and transgenic mice have limitations. We aimed to develop a novel non-myeloablative transplantation (NMT) mouse model that permits high levels of peripheral chimerism without blood-brain barrier (BBB) damage or brain infiltration prior to tumour implantation...
April 20, 2018: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29679324/controlling-fibrin-network-morphology-polymerization-and-degradation-dynamics-in-fibrin-gels-for-promoting-tissue-repair
#18
Erin P Sproul, Riley T Hannan, Ashley C Brown
Fibrin is an integral part of the clotting cascade and is formed by polymerization of the soluble plasma protein fibrinogen. Following stimulation of the coagulation cascade, thrombin activates fibrinogen, which binds to adjacent fibrin(ogen) molecules resulting in the formation of an insoluble fibrin matrix. This fibrin network is the primary protein component in clots and subsequently provides a scaffold for infiltrating cells during tissue repair. Due to its role in hemostasis and tissue repair, fibrin has been used extensively as a tissue sealant...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29678987/protocol-for-a-phase-iii-non-inferiority-randomised-comparison-of-a-new-fibrinogen-concentrate-versus-cryoprecipitate-for-treating-acquired-hypofibrinogenaemia-in-bleeding-cardiac-surgical-patients-the-fibres-trial
#19
Keyvan Karkouti, Jeannie Callum, Vivek Rao, Nancy Heddle, Michael E Farkouh, Mark A Crowther, Damon C Scales
INTRODUCTION: Coagulopathic bleeding is a serious complication of cardiac surgery to which an important contributor is acquired hypofibrinogenaemia (plasma fibrinogen <1.5-2.0 g/L). The standard intervention for acquired hypofibrinogenaemia is cryoprecipitate, but purified fibrinogen concentrates are also available. There is little comparative data between the two therapies and randomised trials are needed. METHODS AND ANALYSIS: FIBrinogen REplenishment in Surgery (FIBRES) is a multicentre, randomised (1:1), active-control, single-blinded, phase III trial in adult cardiac surgical patients experiencing clinically significant bleeding related to acquired hypofibrinogenaemia...
April 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29676178/afm-as-a-tool-to-evaluate-the-risk-for-cardiovascular-diseases-in-patients
#20
Ana Filipa Guedes, Luís Sargento, José Braz-Nogueira, Nuno Lousada, Carlos Moreira, Filomena A Carvalho, Nuno C Santos
Erythrocyte aggregation is an indicator of cardiovascular risk, which is influenced by plasma fibrinogen concentration. Fibrinogen levels are elevated during cardiovascular diseases. Our main goals were to understand how fibrinogen-erythrocyte binding influences erythrocyte aggregation and how it constitutes a cardiovascular risk factor in essential arterial hypertension (EAH) and chronic heart failure (CHF). Fibrinogen-erythrocyte and erythrocyte-erythrocyte adhesion measurements were conducted by atomic force microscopy (AFM)-based force spectroscopy...
2018: Annals of Medicine
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