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https://www.readbyqxmd.com/read/27913544/treatment-of-rare-factor-deficiencies-in-2016
#1
Flora Peyvandi, Marzia Menegatti
Rare bleeding disorders (RBDs) are a heterogeneous group of coagulation disorders characterized by fibrinogen, prothrombin, factors V, VII, X, XI, or XIII (FV, FVII, FX, FXI, or FXIII, respectively), and the combined factor V + VIII and vitamin K-dependent proteins deficiencies, representing roughly 5% of all bleeding disorders. They are usually transmitted as autosomal, recessive disorders, and the prevalence of the severe forms could range from 1 case in 500 000 for FVII up to 1 in 2-3 million for FXIII in the general population...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27906868/individual-clotting-factor-contributions-to-mortality-following-trauma
#2
Ryan C Kunitake, Benjamin M Howard, Lucy Z Kornblith, Sabrinah A Christie, Amanda S Conroy, Mitchell J Cohen, Rachael A Callcut
BACKGROUND: Acute traumatic coagulopathy (ATC) afflicts 20-30% of trauma patients, but the extensive collinearity of the coagulation cascade complicates attempts to clarify global clotting factor dysfunction. This study aims to characterize phenotypes of clotting factor dysfunction and their contributions to mortality after major trauma. METHODS: This prospective cohort study examines all adult trauma patients of the highest activation level presenting to San Francisco General Hospital between 2/2005 and 2/2015...
November 30, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27903969/targeting-tissue-factor-as-a-novel-therapeutic-oncotarget-for-eradication-of-cancer-stem-cells-isolated-from-tumor-cell-lines-tumor-xenografts-and-patients-of-breast-lung-and-ovarian-cancer
#3
Zhiwei Hu, Jie Xu, Jijun Cheng, Elizabeth McMichael, Lianbo Yu, William E Carson Iii
Targeting cancer stem cell (CSC) represents a promising therapeutic approach as it can potentially fight cancer at its root. The challenge is to identify a surface therapeutic oncotarget on CSC. Tissue factor (TF) is known as a common yet specific surface target for cancer cells and tumor neovasculature in several solid cancers. However, it is unknown if TF is expressed by CSCs. Here we demonstrate that TF is constitutively expressed on CD133 positive (CD133+) or CD24-CD44+ CSCs isolated from human cancer cell lines, tumor xenografts from mice and breast tumor tissues from patients...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27899993/predictive-value-of-microparticle-associated-tissue-factor-activity-for-permeability-glycoprotein-mediated-multidrug-resistance-in-cancer
#4
Antonio Angelini, Sebastiano Miscia, Maria Antonietta Centurione, Roberta Di Pietro, Lucia Centurione
Multidrug resistance (MDR) protein 1, which is also known as permeability glycoprotein (Pgp), and tissue factor (TF) are recurrently overexpressed on the surface of cancer cells, likely in response to stimuli such as chemotherapy. Microparticles (MPs) released from cancer cells into the bloodstream express tumour markers on their surface that may be useful as predictive biomarkers for evaluating disease progression. The present study measured the level of TF/factor VII (FVII)-dependent coagulation of MPs isolated from the plasma of cancer patients with various tumours, who were undergoing chemotherapy...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895128/characterization-of-the-pathogenicity-of-streptococcus-intermedius-tyg1620-isolated-from-a-human-brain-abscess-based-on-the-complete-genome-sequence-with-transcriptome-analysis-and-transposon-mutagenesis-in-a-murine-subcutaneous-abscess-model
#5
Noriko Hasegawa, Tsuyoshi Sekizuka, Yutaka Sugi, Nobuhiro Kawakami, Yumiko Ogasawara, Kengo Kato, Akifumi Yamashita, Fumihiko Takeuchi, Makoto Kuroda
Streptococcus intermedius is known to cause periodontitis and pyogenic infections in the brain and liver. Here we report the complete genome sequence of strain TYG1620 (genome size: 2,006,877 bp; GC content: 37.6%; 2,020 predicted ORFs) isolated from a brain abscess in an infant. Comparative genome analysis of S. intermedius genome sequences suggested that TYG1620 carries a notable type VII secretion system (T7SS), two long-repeat regions and 19 ORFs for cell-wall-anchored proteins (CWAPs). To elucidate genes responsible for the pathogenicity of TYG1620, transcriptome analysis was performed in a murine subcutaneous abscess model...
November 28, 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27894217/diagnosis-clinical-manifestations-and-management-of-rare-bleeding-disorders-in-iran
#6
Akbar Dorgalaleh, Sayed Ezatolla Rafiee Alavi, Shadi Tabibian, Shahrzad Soori, Es'hagh Moradi, Taregh Bamedi, Mansour Asadi, Masumeh Jalalvand, Morteza Shamsizadeh
BACKGROUND: Rare bleeding disorders (RBDs) are heterogeneous disorders, mostly inherited in an autosomal recessive pattern. Iran is a Mideast country with a high rate of consanguinity that has a high rate of RBDs. OBJECTIVE: In this study, we present prevalence and clinical presentation as well as management and genetic defects of Iranian patients with RBDs. METHODS: For this study, all relevant publications were searched in Medlin until 2015...
November 28, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27885231/two-elderly-patients-with-difficult-to-treat-acquired-hemophilia-a
#7
Makoto Saito, Masanobu Morioka
We herein report the cases of two elderly patients with acquired hemophilia A (AHA) for whom treatment was difficult.An 89-year-old woman (Case 1) was admitted to our department with subcutaneous hemorrhage and melena. Her activated partial thromboplastin time (APTT), factor VIII activity, and factor VIII inhibitor level were 127.7 seconds, 1.0%, and 48 BU/mL, respectively, which was suggestive of AHA. The administration of prednisolone (PSL 0.5 mg/kg) was initiated. After 3 weeks, PSL was combined with cyclophosphamide (CPA 50 mg)...
2016: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/27881835/leptospirosis-associated-severe-pulmonary-hemorrhagic-syndrome-with-lower-back-pain-as-an-initial-symptom
#8
Mads Madsen Søndergaard, Amela Tursunovic, Peter Thye-Rønn, Jacob Christian Bang, Inger Marie Jensen Hansen
BACKGROUND Leptospirosis is a zoonosis transmitted through urine of infected animals. Symptoms range from mild influenza-like symptoms to severe pulmonary hemorrhagic syndrome (SPHS); the latter are often fatal. The serogroup distribution in Denmark has changed from 1988 to 2012, with Icterohaemorrhagiae and Sejroe now being predominant. CASE REPORT A 45-year-old Danish woman living in an area endemic for Hanta virus, without prior medical history, was admitted because of lower back pain radiating to the left hip, fever, headache, nausea, and malaise...
November 24, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27876270/a-new-manufacturing-process-to-remove-thrombogenic-factors-ii-vii-ix-x-and-xi-from-intravenous-immunoglobulin-gamma-preparations
#9
Dong Hwarn Park, Gil Bu Kang, Dae Eun Kang, Jeung Woon Hong, Min Gyu Lee, Ki Yong Kim, Jeung Whan Han
Coagulation factors (II, VII, IX, X, and particularly XIa) remaining in high concentrations in intravenous immunoglobulin (IVIG) preparations can form thrombi, causing thromboembolic events, and in serious cases, result in death. Therefore, manufacturers of biological products must investigate the ability of their production processes to remove procoagulant activities. Previously, we were able to remove coagulation factors II, VII, IX, and X from our IVIG preparation through ethanol precipitation, but factor XIa, which plays an important role in thrombosis, remained in the intermediate products...
November 18, 2016: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/27872745/critical-review-of-sham-surgery-clinical-trials-confounding-factors-analysis
#10
REVIEW
Massimo Ciccozzi, Rosa Menga, Giovanna Ricci, Massimiliano Andrea Vitali, Silvia Angeletti, Ascanio Sirignano, Vittoradolfo Tambone
OBJECTIVE: Sham surgery (placebo surgery) is an intervention that omits the step thought to be therapeutically necessary. In surgical clinical trials, sham surgery serves an analogous purpose to placebo drugs, neutralizing biases such as the placebo effect. A critical review was performed to study the statistical relevance of the clinical trials about sham surgery in the light of potential confounding factors. MATERIALS AND METHODS: For the critical review 52 articles were included...
December 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27868097/percutaneous-nephrolithotomy-in-rare-bleeding-disorders-a-case-report-and-review-of-the-literature
#11
Ali Ersin Zumrutbas, Cihan Toktas, Aykut Baser, Omer Levent Tuncay
Surgery in patients with congenital or acquired coagulation defects has always been challenging and requires special care with a multidisciplinary approach. Percutaneous nephrolithotomy (PCNL) is a standard procedure performed in patients with kidney stones. Although prone to bleeding more than most of the widely performed surgical procedures, there are not much data regarding PCNL in patients with bleeding disorders or coagulation defects. There are only case reports or series with a small number of patients for the patients with common coagulation defects, including hemophilias...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27858671/effect-of-circulating-tissue-factor-on-hypercoagulability-in-type-2-diabetes-mellitus%C3%A2-studied-by-rheometry-and-dielectric%C3%A2-blood-coagulometry
#12
Isao Uchimura, Makoto Kaibara, Masayuki Nagasawa, Yoshihito Hayashi
BACKGROUND: Hypercoagulability in type 2 diabetes mellitus (T2DM) patients increases their risk of cardiovascular diseases. OBJECTIVE: The aim of this work was to investigate the hypercoagulation mechanism in T2DM patients in terms of circulating tissue factor (TF). METHODS: Whole blood coagulation tests by damped oscillation rheometry and dielectric blood coagulometry (DBCM) were performed. RESULTS: The average coagulation time was significantly shorter for T2DM patients than for healthy controls...
November 16, 2016: Biorheology
https://www.readbyqxmd.com/read/27856811/increased-heart-rate-is-associated-with-a-prothrombotic-state-the-framingham-heart-study
#13
Geoffrey H Tofler, Joseph Massaro, Daniel A Levy, Patrice A Sutherland, Thomas Buckley, Ralph B D'Agostino
BACKGROUND: Although a higher heart rate is associated with an increased risk of cardiovascular disease, the mechanism is not well understood. As thrombosis has an important role in plaque development and acute coronary syndromes, the increase related to heart rate may result from a prothrombotic imbalance. METHODS: We investigated the relation between heart rate and thrombotic potential in 3451 participants from the Offspring Cohort of the Framingham Heart Study (mean age 54 years, 55% women)...
November 17, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27853671/heparanase-inhibitors-facilitate-the-assembly-of-the-basement-membrane-in-artificial-skin
#14
Makoto Tsunenaga
Recent research suggests that the basement membrane at the dermal-epidermal junction of the skin plays an important role in maintaining a healthy epidermis and dermis, and repeated damage to the skin can destabilize the skin and accelerate the aging process. Skin-equivalent models are suitable for studying the reconstruction of the basement membrane and its contribution to epidermal homeostasis because they lack the basement membrane and show abnormal expression of epidermal differentiation markers. By using these models, it has been shown that reconstruction of the basement membrane is enhanced not only by supplying basement membrane components, but also by inhibiting proteinases such as urokinase and matrix metalloproteinase...
August 2016: Current Tissue Engineering
https://www.readbyqxmd.com/read/27850247/608-recombinant-activated-factor-vii-for-refractory-bleeding-in-pediatric-patients-on-ecmo
#15
Hillary Orr, Heather Damhoff, Cindy Zoeller, Shannon Mayes
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27843336/treatment-of-bleeding-in-acquired-hemophilia-a-with-the-proper-administration-of-recombinant-activated-factor-vii-single-center-study-of-7-cases
#16
Makoto Saito, Minoru Kanaya, Koh Izumiyama, Akio Mori, Tatsuro Irie, Masanori Tanaka, Masanobu Morioka, Masahiro Ieko
Recombinant activated factor VII (rFVIIa) is the bypassing agent used in the first-line hemostatic therapy for acquired hemophilia A (AHA); however, the occurrence of thrombotic complications in rFVIIa-treated AHA patients was recently reported to be 2.9-6.5%. Therefore, the investigation of the proper administration of rFVIIa for AHA is needed. In the present study, we retrospectively investigated the clinical features of AHA with regards to the use of rFVIIa (presence or absence of use and total amount) in 7 AHA patients encountered in our department for 7 years between January 2008 and December 2014...
2016: International Journal of General Medicine
https://www.readbyqxmd.com/read/27843317/effect-of-yi-nao-jie-yu-decoction-on-%C3%AE-aminobutyric-acid-type-a-receptor-in-the-hippocampus-and-serum-inflammatory-factors-in-a-rat-model-of-poststroke-anxiety
#17
Wen Zhang, Ruizhen Zhao, Xiaoli Li, Xia Cui, Zijun Zhao, Yingqiu Mao, Fengzhi Wu, Qisheng Tang
BACKGROUND: The Yi-nao-jie-yu decoction (YNJYD) is a herbal preparation widely used in the clinics of traditional Chinese medicine and has been recently used as an important new therapeutic agent in poststroke anxiety (PSA). The neuroendocrine-immune system plays an important role in PSA mechanisms, although the modulating effects of YNJYD remain unknown. This study investigated the potential effects of YNJYD on the neuroendocrine-immune system in a rat model of PSA. MATERIALS AND METHODS: The PSA model was induced by injecting collagenase (type VII) into the right globus pallidus, accompanied by empty water bottle stimulation for 2 weeks...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27836023/coagulation-factor-abnormalities-related-to-discordance-between-anti-factor-xa-and-activated-partial-thromboplastin-time-in-patients-supported-with-continuous-flow-left-ventricular-assist-devices
#18
Sirtaz Adatya, Roy Sunny, Megan J Fitzpatrick, Monica Colvin, Thennapan Thennapan, Ranjit John, Nicole Dodge Zantek, Marc Pritzker, Peter Eckman, Nir Uriel
BACKGROUND: High levels of discordance between activated partial thromboplastin time (aPTT) and anti-factor Xa (anti-FXa) have been reported in patients with continuous-flow left ventricular assist devices (CF-LVADs). We sought to determine the biochemical basis for discordance by simultaneous measurement of coagulation factors with aPTT and anti-FXa. METHODS: Consecutive CF-LVAD patients admitted for intravenous unfractionated heparin (IV-UFH) therapy were studied...
November 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27835985/hypoxia-response-in-arabidopsis-roots-infected-by-plasmodiophora-brassicae-supports-the-development-of-clubroot
#19
Antoine Gravot, Gautier Richard, Tanguy Lime, Séverine Lemarié, Mélanie Jubault, Christine Lariagon, Jocelyne Lemoine, Jorge Vicente, Alexandre Robert-Seilaniantz, Michael J Holdsworth, Maria J Manzanares-Dauleux
BACKGROUND: The induction of alcohol fermentation in roots is a plant adaptive response to flooding stress and oxygen deprivation. Available transcriptomic data suggest that fermentation-related genes are also frequently induced in roots infected with gall forming pathogens, but the biological significance of this induction is unclear. In this study, we addressed the role of hypoxia responses in Arabidopsis roots during infection by the clubroot agent Plasmodiophora brassicae. RESULTS: The hypoxia-related gene markers PYRUVATE DECARBOXYLASE 1 (PDC1), PYRUVATE DECARBOXYLASE 2 (PDC2) and ALCOHOL DEHYDROGENASE 1 (ADH1) were induced during secondary infection by two isolates of P...
November 11, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27829580/inhibitory-effect-of-ethinylestradiol-on-coagulation-factors-in-rats
#20
Yanira Franco-Murillo, Ruth Jaimez
Epidemiological and experimental data have indicated the beneficial and adverse effects of estrogenic replacement therapy. In the present study, we explored the effect of ethinylestradiol (EE) and 17β-estradiol (E2) on screening tests, prothrombin time (PT) and activated partial thromboplastin time (APTT), as well as the activity of coagulation factors (FVII, FX, FXI, and FXII) in male Wistar rats. Animals were injected subcutaneously during three consecutive days with EE or E2 (1, 3, 10, and 30 mg/kg) and propylene glycol (0...
November 9, 2016: Experimental Animals
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