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Factor VII

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https://www.readbyqxmd.com/read/28077534/reduced-mortality-by-meeting-guideline-criteria-before-using-recombinant-activated-factor-vii-in-severe-trauma-patients-with-massive-bleeding
#1
J-F Payen, M Berthet, C Genty, P Declety, D Garrigue-Huet, N Morel, P Bouzat, B Riou, J-L Bosson
BACKGROUND: Management of trauma patients with severe bleeding has led to criteria before considering use of recombinant activated factor VII (rFVIIa), including haemoglobin >8 g dl(-1), serum fibrinogen ≥1.0 g l(-1), platelets >50,000 x 10(9) l(-1), arterial pH ≥ 7.20, and body temperature ≥34 °C. We hypothesized that meeting these criteria is associated with improved outcomes. METHODS: In this prospective cohort study of 26 French trauma centres, subjects were included if they received rFVIIa for persistent massive bleeding despite appropriate care after severe blunt and/or penetrating trauma...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28074087/the-genetic-variation-rs6903956-in-the-novel-androgen-dependent-tissue-factor-pathway-inhibitor-regulating-protein-adtrp-gene-is-not-associated-with-levels-of-plasma-coagulation-factors-in-the-singaporean-chinese
#2
Xuling Chang, Hui-Lin Chin, Swee-Chye Quek, Daniel Y T Goh, Rajkumar Dorajoo, Yechiel Friedlander, Chew-Kiat Heng
BACKGROUND: Genome-wide association study (GWAS) has reported that rs6903956 within the first intron of androgen-dependent tissue factor pathway inhibitor (TFPI) regulating protein (ADTRP) gene is associated with coronary artery disease (CAD) risk in the Chinese population. Although ADTRP is believed to be involved in the upregulation of TFPI, the underlying mechanism involved is largely unknown. This study investigated the association of rs6903956 with plasma Factor VII coagulant activity (FVIIc) and fibrinogen levels, which are regulated by TFPI and are independent risk predictors for CAD...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28070807/successful-synthesis-of-active-human-coagulation-factor-vii-by-co-expression-of-mammalian-gamma-glutamyl-carboxylase-and-modification-of-vit-k-cycle-in-drosophila-schneider-s2-cells
#3
Kotomi Nagahashi, Kazuo Umemura, Naohiro Kanayama, Takayuki Iwaki
Mammalian gamma-glutamyl carboxylase and reduced vitamin K are indispensable for synthesis of mature mammalian vitamin K dependent proteins including some of blood coagulation factors (factors II, VII, IX, and X). It was well known that Drosophila melanogaster expressed gamma-glutamyl carboxylase and possessed a vit.K cycle although native substrates for them have not been identified yet. Despite the potential capability of gamma carboxylation in D. melanogaster derived cells such as S2 cells, Drosophila gamma-glutamyl carboxylase failed to gamma carboxylate a peptide fused to the human coagulation factor IX propeptide...
January 9, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28064632/protective-effects-of-apigenin-and-myricetin-against-cisplatin-induced-nephrotoxicity-in-mice
#4
Samar M Hassan, Marwa M Khalaf, Sawsan A Sadek, Amira M Abo-Youssef
CONTEXT: Currently, the outcomes of the use of cisplatin in cancer therapy is limited by nephrotoxicity. OBJECTIVE: This study aims to investigate the nephroprotective role of apigenin and myricetin against cisplatin-induced nephrotoxicity in mice. MATERIALS AND METHODS: Adult female Wistar Albino mice were divided into eight groups (n = 8). Group I served as normal control. Groups II, III and IV received apigenin (3 mg/kg, i.p.), myricetin (3 mg/kg, i...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28061787/plasma-markers-of-inflammation-and-hemostatic-and-endothelial-activity-in-naturally-overweight-and-obese-dogs
#5
R Barić Rafaj, J Kuleš, A Marinculić, A Tvarijonaviciute, J Ceron, Ž Mihaljević, A Tumpa, V Mrljak
BACKGROUND: Obesity is one of the most prevalent health problems in the canine population. While haemostatic parameters and markers of endothelial function have been evaluated in various disease conditions in dogs, there are no studies of these markers in canine obesity. This study was designed to evaluate the effect of naturally gained weight excess and obesity on inflammatory, hemostatic and endothelial biomarkers in dogs. A total of 37 overweight and obese dogs were compared with 28 normal weight dogs...
January 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28055147/monitoring-of-treatment-with-vitamin-k-antagonists-recombinant-thromboplastins-are-more-sensitive-to-factor-vii-than-tissue-extract-thromboplastins
#6
Joseph S Biedermann, Antonius M H P van den Besselaar, Moniek P M de Maat, Frank W G Leebeek, Marieke J H A Kruip
BACKGROUND: Differences regarding sensitivity to factor VII (FVII) have been suggested for recombinant human and tissue-extract thromboplastins used for International Normalized Ratio (INR) measurement, but evidence is scarce. Differences in FVII sensitivity are clinically relevant since they can affect INR stability during treatment with vitamin K antagonists (VKA). OBJECTIVES: To determine if commercial thromboplastins react differently to changes in FVII. METHODS: We studied the effect of addition of FVII on the INR in plasma using three tissue-extract (Neoplastin C1+, Hepato Quick, Thromborel S) and three recombinant human (Recombiplastin 2G, Innovin, Coaguchek XS) thromboplastins...
January 5, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28043678/associations-between-blood-coagulation-markers-nt-probnp-and-risk-of-incident-heart-failure-in-older-men-the-british-regional-heart-study
#7
S Goya Wannamethee, Peter H Whincup, Olia Papacosta, Lucy Lennon, Gordon D Lowe
AIMS: Chronic heart failure (HF) is associated with activation of blood coagulation but there is a lack of prospective studies on the association between coagulation markers and incident HF in general populations. We have examined the association between the coagulation markers fibrinogen, von Willebrand Factor (VWF), Factors VII, VIII and IX, D-dimer, activated protein C (APC) and activated partial thromboplastin time (aPPT) with NT-proBNP and incident HF. METHODS AND RESULTS: Prospective study of 3366 men aged 60-79years with no prevalent HF, myocardial infarction or venous thrombosis and who were not on warfarin, followed up for a mean period of 13years, in whom there were 203 incident HF cases...
December 20, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28042057/variations-in-normal-color-vision-vii-relationships-between-color-naming-and-hue-scaling
#8
Kara J Emery, Vicki J Volbrecht, David H Peterzell, Michael A Webster
A longstanding and unresolved question is how observers construct a discrete set of color categories to partition and label the continuous variations in light spectra, and how these categories might reflect the neural representation of color. We explored the properties of color naming and its relationship to color appearance by analyzing individual differences in color-naming and hue-scaling patterns, using factor analysis of individual differences to identify separate and shared processes underlying hue naming (labeling) and hue scaling (color appearance)...
January 5, 2017: Vision Research
https://www.readbyqxmd.com/read/28038846/primary-prophylaxis-for-children-with-severe-congenital-factor-vii-deficiency-clinical-and-laboratory-assessment
#9
A A Kuperman, A A Barg, Y Fruchtman, E Shaoul, N Rosenberg, G Kenet, T Livnat
Severe congenital factor VII (FVII) deficiency is a rare bleeding disorder. Prophylaxis with replacement therapy has been suggested to patients, yet the most beneficial dosing regimens and therapy intervals are still to be defined. Due to the lack of evidence-based data, we hereby present our experience with long-term administration and monitoring primary prophylaxis in children with severe FVII deficiency and an extremely high bleeding risk. Four children with familial FVII deficiency, treated by prophylactic recombinant activated factor VII (rFVIIa), 15-30μg/kg/dose, given 2-3 times weekly since infancy, are discussed...
December 19, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28035745/one-amino-acid-in-mouse-factor-viia-defines-its-endothelial-protein-c-receptor-binding-and-modulates-its%C3%A2-epcr-dependent-hemostatic-activity-in-vivo
#10
G Pavani, S M Zintner, L Ivanciu, J C Small, K A Stafford, J H Szeto, P Margaritis
BACKGROUND: Human activated Factor VII (hFVIIa), used in hemophilia treatment, binds to the endothelial Protein C (PC) receptor (EPCR) with unclear hemostatic consequences. Interestingly, mice lack the Factor VIIa (FVIIa)-EPCR interaction. Therefore, to investigate the hemostatic consequences of this interaction in hemophilia, we previously engineered a mouse FVIIa (mFVIIa) molecule that bound mouse EPCR (mEPCR) using 3 substitutions from mouse Protein C (mPC, Leu4→Phe, Leu8→Met and Trp9→Arg)...
December 30, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28034354/recombinant-activated-factor-vii-eptacog-alfa-activated-novoseven-%C3%A2-in-patients-with-rare-congenital-bleeding-disorders-a-systematic-review-on-its-use-in-surgical-procedures
#11
Matteo Nicola Dario Di Minno, Pasquale Ambrosino, Veronika A Myasoedova, Manuela Amato, Itala Ventre, Elena Tremoli, Alessandro Di Minno
In the absence of definite guidelines in the area, we have carried a systemic review to provide a thorough overview concerning the efficacy and safety of recombinant activated factor VII (rFVIIa, NovoSeven®, Novo Nordisk A/S, Bagsværd, Denmark) in patients with Glanzmann's thrombasthenia (GT) and FVII deficiency, undergoing surgical procedures. PubMed, Web of Science, Scopus and EMBASE databases was employed for the search. Three multicenter registries were identified: the Glanzmann's Thrombasthenia Registry (GTR), the Seven Treatment Evaluation Registry (STER), and a German post-marketing surveillance registry (the WIRK study)...
December 30, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28029283/evaluation-of-procoagulant-tissue-factor-expression-in-canine-hemangiosarcoma-cell-lines
#12
Lauren E Witter, Erika J Gruber, Fabian Z X Lean, Tracy Stokol
OBJECTIVE To evaluate expression of procoagulant tissue factor (TF) by canine hemangiosarcoma cells in vitro. SAMPLES 4 canine hemangiosarcoma cell lines (SB-HSA [mouse-passaged cutaneous tumor], Emma [primary metastatic brain tumor], and Frog and Dal-1 [primary splenic tumors]) and 1 nonneoplastic canine endothelial cell line (CnAoEC). PROCEDURES TF mRNA and TF antigen expression were evaluated by quantitative real-time PCR assay and flow cytometry, respectively. Thrombin generation was measured in canine plasma and in coagulation factor-replete or specific coagulation factor-deficient human plasma by calibrated automated thrombography...
January 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28028990/acquired-von-willebrand-syndrome
#13
REVIEW
Andrzej Mital
Acquired von Willebrand syndrome is a rare hemorrhagic diathesis, with clinical symptoms similar to those associated with the inherited form von Willebrand disease. This syndrome is characterized by a lack of previous bleeding symptoms, negative familial history, and occurrence in a relatively older age. Most commonly, acquired von Willebrand syndrome develops in the course of other conditions, such as lymphoproliferative, myeloproliferative, cardiovascular and autoimmune disorders; additionally, it can be associated with some non-hematological malignancies and use of certain prescription drugs...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28018685/coexistence-of-factor-vii-deficiency-and-hereditary-spastic-paraplegia-in-two-siblings
#14
Hortensia De la Corte-Rodriguez, E Carlos Rodriguez-Merchan, M Teresa Alvarez-Roman, Ana L Hernandez-Moreno
We present the case of two patients aged 12 years and 7 years who were referred to our hospital for factor VII deficiency inherited in an autosomal recessive pattern, who had suffered from previous multiple joint haemarthroses. They presented with fine motor symptoms and difficulty in walking. During physical examination we observed neurological symptoms (general hypotonia, muscular hypotrophy, exaggerated tendon reflexes, pes cavus, and spastic gait). Given that the symptoms were not justified by the deficiency of coagulation factor VII and on suspicion of hereditary spastic paraplegia (HSP), tests were carried out...
2016: Case Reports in Hematology
https://www.readbyqxmd.com/read/28007597/computational-proteome-wide-screening-predicts-neurotoxic-drug-protein-interactome-for-the-investigational-analgesic-bia-10-2474
#15
Steven V Molinski, Vijay M Shahani, Stephen S MacKinnon, Leonard D Morayniss, Marcon Laforet, Geoffrey Woollard, Naheed Kurji, Cecilia G Sanchez, Shoshana J Wodak, Andreas Windemuth
The investigational compound BIA 10-2474, designed as a long-acting and reversible inhibitor of fatty acid amide hydrolase for the treatment of neuropathic pain, led to the death of one participant and hospitalization of five others due to intracranial hemorrhage in a Phase I clinical trial. Putative off-target activities of BIA 10-2474 have been suggested to be major contributing factors to the observed neurotoxicity in humans, motivating our study's proteome-wide screening approach to investigate its polypharmacology...
December 20, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28006904/resin-glycosides-from-ipomoea-alba-seeds-as-potential-chemosensitizers-in-breast-carcinoma-cells
#16
Sara Cruz-Morales, Jhon Castañeda-Gómez, Daniel Rosas-Ramírez, Mabel Fragoso-Serrano, Gabriela Figueroa-González, Argelia Lorence, Rogelio Pereda-Miranda
Multidrug resistance is the expression of one or more efflux pumps, such as P-glycoprotein, and is a major obstacle in cancer therapy. The use of new potent and noncytotoxic efflux pump modulators, coadministered with antineoplastic agents, is an alternative approach for increasing the success rate of therapy regimes with different drug combinations. This report describes the isolation and structure elucidation of six new resin glycosides from moon vine seeds (Ipomoea alba) as potential mammalian multidrug-resistance-modifying agents...
December 23, 2016: Journal of Natural Products
https://www.readbyqxmd.com/read/28003931/stability-of-thawed-apheresis-fresh-frozen-plasma-stored-for-up-to-120-hours-at-1%C3%A2-c-to-6%C3%A2-c
#17
William P Sheffield, Varsha Bhakta, Qi-Long Yi, Craig Jenkins
Regulations concerning the storage of transfusable plasma differ internationally. In Canada, plasma obtained from whole blood donations and frozen within 24 hours of phlebotomy (frozen plasma, FP) may be thawed and transfused within 120 hours of refrigerated storage. However, plasma frozen within 8 hours of phlebotomy following apheresis donation (FFPA) must be transfused within 24 hours of thawing and refrigeration. Our objectives were to measure coagulation factors (F) V, VII, and VIII, fibrinogen activities, and the prothrombin time (PT) in thawed refrigerated FFPA at 0, 24, and 120 hours of storage and to compare these values to those in thawed refrigerated FP...
2016: Journal of Blood Transfusion
https://www.readbyqxmd.com/read/27999997/level-i-lymph-node-involvement-in-patients-with-n1b-papillary-thyroid-carcinoma-a-prospective-study
#18
Ahmad M Eweida, Mahmoud F Sakr, Yasser Hamza, Mohamed R Khalil, Essam Gabr, Tarek Koraitim, Hatem F Al-Wagih, Waleed Abo-Elwafa, Tarek Ezzat Abdel-Aziz, Ahmed A Diab, Basma El-Sabaa, Aman S Nabawi
Most of the studies on the incidence, pattern, and predictive factors of lymph node (LN) metastasis with papillary thyroid carcinoma (PTC) have been performed retrospectively and no common consensus has been reached regarding the predictors for the involvement of level I LNs. This study was conducted prospectively to determine the incidence and the possible predictors of level I involvement in N1b PTC patients. The study included 30 consecutive patients with N1b stage of PTC. All the patients underwent neck dissection (ND) including level I...
December 20, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27999842/reduced-skin-blistering-in-experimental-epidermolysis-bullosa-acquisita-after-anti-tnf-treatment
#19
Misa Hirose, Anika Kasprick, Foteini Beltsiou, Katharina Schulze Dieckhoff, Franziska Sophine Schulze, Unni Kjsrl Samavedam, Jennifer E Hundt, Hendri H Pas, Marcel F Jonkman, Enno Schmidt, Kathrin Kalies, Detlef Zillikens, Ralf J Ludwig, Katja Bieber
Epidermolysis bullosa acquisita (EBA) is a difficult-to-treat subepidermal autoimmune blistering skin disease (AIBD) with circulating and tissue-bound anti-type VII collagen antibodies. Different reports have indicated an increased concentration of tumor necrosis factor alpha (TNF) in the serum and blister fluid of patients with subepidermal AIBDs. Furthermore, successful anti-TNF treatment has been reported for individual patients with AIBDs. Here, we show that in mice, induction of experimental EBA by repeated injections of rabbit-anti mouse type VII collagen antibodies led to increased expression of TNF in skin, as determined by real-time PCR and immunohistochemistry...
December 20, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27989989/total-circulating-microparticle-levels-are-increased-in-patients-with-deep-infiltrating-endometriosis
#20
J Munrós, M A Martínez-Zamora, D Tàssies, J L Coloma, M A Torrente, J C Reverter, F Carmona, J Balasch
STUDY QUESTION: Are the levels of total circulating cell-derived microparticles (cMPs) and circulating tissue factor-containing microparticles (cMP-TF) increased in patients with endometriosis? SUMMARY ANSWER: The levels of total cMP, but not cMP-TF, were higher in patients with endometriosis, and these were attributed to higher levels in patients with deep infiltrating endometriosis (DIE). WHAT IS KNOWN ALREADY: Previous studies have reported elevated levels of total cMP in inflammatory conditions as well as higher levels of other inflammatory biomarkers in endometriosis...
December 17, 2016: Human Reproduction
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