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https://www.readbyqxmd.com/read/28641667/-research-progress-on-genetic-factors-and-hemophilia-a-clotting-factor-inhibitor-review
#1
Zheng-Bin Hu, Xin Sun, Li-Ya He
Hemophilia A (Hemophilia A, HA) is an X-linked recessive hereditary coagulation function disorder, the deficiency and dysfunction of blood coagulation were caused by the mutations of gene encoding clotting factor VIII. The treatment of hemophilia A still depends on the replacement therapy with blood coagulation factor. However, the repeated infusion of clotting factor will produce the neutralizing antibody against FVIII, then resulting in one of the serious complications. The reports on the incidence of inhibitor are different at home and abroad...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641658/-effects-of-different-storage-time-and-temperature-on-coagulation-function-of-fresh-frozen-plasma-after-thawing
#2
Xiao-Yun Gao, Xin-Hua Wang
OBJECTIVE: To investigate the coagulation function changes of fresh frozen plasma storaged at different storage time and temperature after thawing. METHODS: Forty unit of fresh frozen plasma were collected, and thawed at 37 °C for 25 minutes. Each unit was divided into 2 halves: one was stored at (4±2)°C for 72 hours and the other one was stored at (25±2) °C for 72 hours. At the time point of 0, 4, 24, 48 and 72 h, thromboela-stogram TEG was measured for all samples...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641644/-clinical-significance-of-mean-platelet-volume-determination-in-multiple-myeloma
#3
Peng Gao, Zhong-Ping Xiao, Kun Fu, Mei Han
OBJECTIVE: To investigate the clinical significance of mean platelet volume(MPV) in patients with multiple myeloma(MM). METHODS: The clinical data of 198 patients with MM admitted in our hospital from March 2008 to March 2015 were collected and analyzed. The clinical data included the Ig type, hemoglobin level, platelet count, creatinine, calciumion albumin, β2-MG, LDH, plasmocytes in bone marrow, MPV, complications such as diabetes, a history of venous thromboembolism (VTE) and arterial events such as coronary artery disease, cerebrovascular disease, thrombosis and blood clotting...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28639983/maxillary-sinus-membrane-elevation-with-simultaneous-installation-of-implants-without-the-use-of-a-graft-material-a-systematic-review
#4
Thomas Starch-Jensen, Søren Schou
OBJECTIVE: To compare implant treatment outcome after maxillary sinus membrane elevation with simultaneous installation of implants with or without the use of graft material applying the lateral window technique. MATERIALS AND METHODS: MEDLINE/PubMed, Cochrane Library, and Embase search in combination with a hand-search of relevant journals was conducted from January 1, 2004 to January 1, 2016. RESULTS: Thirteen studies fulfilled the inclusion criteria...
June 19, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28635382/white-cell-and-platelet-content-affects-the-release-of-bioactive-factors-in-different-blood-derived-scaffolds
#5
S Cabaro, V D'Esposito, R Gasparro, F Borriello, F Granata, G Mosca, F Passaretti, J C Sammartino, F Riccitiello, F Beguinot, P Formisano, G Sammartino
Platelet-derived factors are biomaterials that might accelerate healing process in oral, maxillofacial, and several other applications. Release of specific factors by platelet concentrates is critical to achieving a successful outcome. Here, we have shown that platelet-rich fibrin (PRF) clots were beneficial sources of leukocytes, which may directly affect the release of chemokines and growth factors. When compared with the standard leukocyte-PRF (L-PRF), the experimental low-force modified procedure [defined as advanced-PRF (A-PRF)] entrapped the same content of viable leukocytes, released a similar amount of inflammatory cytokines, but secreted 3-, 1...
June 21, 2017: Platelets
https://www.readbyqxmd.com/read/28634431/the-aftermath-of-a-hepatic-artery-aneurysm-a-rare-etiology-of-biliary-obstruction
#6
Catherine Linzay, Abhishek Seth, Kunal Suryawala, Ankur Sheth, Moheb Boktor, John Bienvenu, Robby Rahim, Guillermo P Sangster, Paul A Jordan
BACKGROUND: Hepatic artery aneurysms (HAAs) constitute 14% to 20% of visceral artery aneurysms. Most HAAs are asymptomatic. Although rare, obstructive jaundice due to external bile duct compression or rupture of the HAA into the biliary tree with occlusion of the lumen from blood clots has been reported. CASE PRESENTATION: A 56-year-old white man presented to an outside hospital with symptoms of obstructive jaundice, including abdominal pain and yellowing of the skin...
2017: Clinical Medicine Insights. Gastroenterology
https://www.readbyqxmd.com/read/28634064/subarachnoid-hemorrhage-in-advanced-age-comparison-of-patients-aged-70-79-years-and-80-years-and-older
#7
N Brawanski, F Kunze, M Bruder, S Tritt, C Senft, J Berkefeld, V Seifert, J Konczalla
OBJECTIVE: Clinical routine shows an increasing admission rate of elderly patients suffering from SAH. We retrospectively compared patients aged 70-79 and over 80 years (80+). Aim of the study was to identify differences in outcome and prognostic factors to better anticipate clinical course and therefore treat this special subgroup better. METHODS: Patients were entered into a prospectively collected database. Between 1999 and 06/2014 191 patients suffered from SAH and aged ≥70 years...
June 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28632877/blood-clotting-drug-saves-lives-during-childbirth
#8
M J Friedrich
No abstract text is available yet for this article.
June 20, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28632435/relative-effects-of-plasma-fibrinogen-concentrate-and-factor-xiii-on-rotem-coagulation-profiles-in-an-in-vitro-model-of-massive-transfusion-in-trauma
#9
David E Schmidt, Märit Halmin, Agneta Wikman, Anders Östlund, Anna Ågren
Massive traumatic haemorrhage is aggravated through the development of trauma-induced coagulopathy, which is managed by plasma transfusion and/or fibrinogen concentrate administration. It is yet unclear whether these treatments are equally potent in ensuring adequate haemostasis, and whether additional factor XIII (FXIII) administration provides further benefits. In this study, we compared ROTEM whole blood coagulation profiles after experimental massive transfusion with different transfusion regimens in an in vitro model of dilution- and transfusion-related coagulopathy...
June 20, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28631704/-beh%C3%A3-et-s-disease-intracardiac-thrombosis-a-description-of-two-cases-and-a-review-of-literature
#10
Z S Alekberova, P S Ovcharov, T A Lisitsyna, A V Volkov, T V Popkova
Behçet's disease (BD) is systemic vasculitis of unknown etiology, which is more common in the countries located along the Great Silk Road. The disease is diagnosed if a patient has 4 key diagnostic signs: aphthous stomatitis, genital sores, and eye and skin lesions. Vascular diseases referred to as minor criteria for BD are characterized by the formation of aneurysms and thrombosis, predominantly in the venous bed. In venous disorders, a blood clot can form in any vessel, including caval, cerebral, pulmonary, and other veins...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28630861/biophysical-mechanisms-mediating-fibrin-fiber-lysis
#11
REVIEW
Nathan E Hudson
The formation and dissolution of blood clots is both a biochemical and a biomechanical process. While much of the chemistry has been worked out for both processes, the influence of biophysical properties is less well understood. This review considers the impact of several structural and mechanical parameters on lytic rates of fibrin fibers. The influences of fiber and network architecture, fiber strain, FXIIIa cross-linking, and particle transport phenomena will be assessed. The importance of the mechanical aspects of fibrinolysis is emphasized, and future research avenues are discussed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28629456/comparison-of-the-effects-of-7-2-hypertonic-saline-and-20-mannitol-on-whole-blood-coagulation-and-platelet-function-in-dogs-with-suspected-intracranial-hypertension-a-pilot-study
#12
Ivayla D Yozova, Judith Howard, Diana Henke, Daniel Dirkmann, Katja N Adamik
BACKGROUND: Hyperosmolar therapy with either mannitol or hypertonic saline (HTS) is commonly used in the treatment of intracranial hypertension (ICH). In vitro data indicate that both mannitol and HTS affect coagulation and platelet function in dogs. The aim of this study was to compare the effects of 20% mannitol and 7.2% HTS on whole blood coagulation using rotational thromboelastometry (ROTEM®) and platelet function using a platelet function analyzer (PFA®) in dogs with suspected ICH...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28629055/a-novel-kind-of-polysulfone-material-with-excellent-biocompatibility-modified-by-the-sulfonated-hydroxypropyl-chitosan
#13
Tian-Ming Liu, Jing-Jie Xu, Yun-Ren Qiu
In order to ameliorate the biocompatibility of polysulfone (PSf), sulfonated hydroxypropyl chitosan (SHPCS) was grafted from PSf membrane material by Schiff-Base reaction. The original and modified membranes were characterized by attenuated total reflectance-Fourier transform infrared spectroscope (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), water contact angle (WCA) measurement, tensile strength test and antibacterial test in vitro, and the results indicated that the PSf modified by SHPCS (PSf-SHPCS) was synthesized successfully, the hydrophilicity of PSf-SHPCS membrane was improved to a great extent, all the membranes possessed good stability in physiological condition and the PSf-SHPCS membrane had good antibacterial property...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627575/label-free-detection-of-aggregated-platelets-in-blood-by-machine-learning-aided-optofluidic-time-stretch-microscopy
#14
Yiyue Jiang, Cheng Lei, Atsushi Yasumoto, Hirofumi Kobayashi, Yuri Aisaka, Takuro Ito, Baoshan Guo, Nao Nitta, Natsumaro Kutsuna, Yasuyuki Ozeki, Atsuhiro Nakagawa, Yutaka Yatomi, Keisuke Goda
According to WHO, about 10 million new cases of thrombotic disorders are diagnosed worldwide every year. Thrombotic disorders, including atherothrombosis (the leading cause of death in the US and Europe), are induced by occlusion of blood vessels, due to the formation of blood clots in which aggregated platelets play an important role. The presence of aggregated platelets in blood may be related to atherothrombosis (especially acute myocardial infarction) and is, hence, useful as a potential biomarker for the disease...
June 19, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28625215/assessing-coagulation-by-rotational-thromboelastometry-rotem-in-rivaroxaban-anticoagulated-blood-using-hemostatic-agents
#15
Jonathan Bar, Alexa David, Tarek Khader, Mary Mulcare, Christopher Tedeschi
Introduction The use of direct oral anticoagulants (DOACs) such as rivaroxaban (Xarelto) is increasingly common. However, therapies for reversing anticoagulation in the event of hemorrhage are limited. This study investigates the ability of hemostatic agents to improve the coagulation of rivaroxaban-anticoagulated blood, as measured by rotational thromboelastometry (ROTEM). Hypothesis/Problem If a chitosan-based hemostatic agent (Celox), which works independently of the clotting cascade, is applied to rivaroxaban-anticoagulated blood, it should improve coagulation by decreasing clotting time (CT), decreasing clot formation time (CFT), and increasing maximum clot firmness (MCF)...
June 19, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28623360/endothelial-cell-derived-extracellular-vesicles-size-dependently-exert-procoagulant-activity-detected-by-thromboelastometry
#16
Wolfgang Holnthoner, Cornelia Bonstingl, Carina Hromada, Severin Muehleder, Johannes Zipperle, Stefan Stojkovic, Heinz Redl, Johann Wojta, Herbert Schöchl, Johannes Grillari, Sylvia Weilner, Christoph J Schlimp
Endothelial cells (ECs) are major modulators of hemostasis by expressing and releasing pro- and anticoagulant mediators into the circulation. Previous studies showed that cultured ECs release procoagulant mediators into cell culture supernatants as evidenced by the reduction of viscoelastic clotting time. This effect was reversed with an anti-tissue factor antibody. Here, we aimed to investigate whether tissue factor (TF) was released by endothelial-derived extracellular vesicles (EVs) and which portion of the released vesicles displays the most prominent procoagulant properties...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622603/probing-supramolecular-protein-assembly-using-covalently-attached-fluorescent-molecular-rotors
#17
Markéta Kubánková, Ismael López-Duarte, James A Bull, Devkee M Vadukul, Louise C Serpell, Marie de Saint Victor, Eleanor Stride, Marina K Kuimova
Changes in microscopic viscosity and macromolecular crowding accompany the transition of proteins from their monomeric forms into highly organised fibrillar states. Previously, we have demonstrated that viscosity sensitive fluorophores termed 'molecular rotors', when freely mixed with monomers of interest, are able to report on changes in microrheology accompanying amyloid formation, and measured an increase in rigidity of approximately three orders of magnitude during aggregation of lysozyme and insulin. Here we extend this strategy by covalently attaching molecular rotors to several proteins capable of assembly into fibrils, namely lysozyme, fibrinogen and amyloid-β peptide (Aβ(1-42))...
September 2017: Biomaterials
https://www.readbyqxmd.com/read/28616369/management-of-an-obstructed-tracheostomy-in-a-limited-resource-setting
#18
Julie Chiaravalli, Norman Lufesi, Elwin Shawa, Vitumbiko Nkhoma, Elaine Sigalet, Adam Dubrowski
Obstruction of a tracheostomy tube is a common cause of respiratory compromise in adults and pediatric patients, which can lead to a life-threatening emergency if it is not properly managed. Compromised airway patency has many potential etiologies; however, the scenario described in this technical report focuses specifically on the management of tracheostomy obstruction through the presence of a mucus plug, blood clot, or highly viscous secretions. The simulation described in this technical report was written to be conducted as an in-situ simulation within the intensive care unit (ICU) at Mzuzu Central Hospital, Malawi...
May 13, 2017: Curēus
https://www.readbyqxmd.com/read/28615645/intravascular-forward-looking-ultrasound-transducers-for-microbubble-mediated-sonothrombolysis
#19
Jinwook Kim, Brooks D Lindsey, Wei-Yi Chang, Xuming Dai, Joseph M Stavas, Paul A Dayton, Xiaoning Jiang
Effective removal or dissolution of large blood clots remains a challenge in clinical treatment of acute thrombo-occlusive diseases. Here we report the development of an intravascular microbubble-mediated sonothrombolysis device for improving thrombolytic rate and thus minimizing the required dose of thrombolytic drugs. We hypothesize that a sub-megahertz, forward-looking ultrasound transducer with an integrated microbubble injection tube is more advantageous for efficient thrombolysis by enhancing cavitation-induced microstreaming than the conventional high-frequency, side-looking, catheter-mounted transducers...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28614362/effect-of-pathological-heterogeneity-on-shear-wave-elasticity-imaging-in-the-staging-of-deep-venous-thrombosis
#20
Xiaona Liu, Na Li, Chaoyang Wen
BACKGROUND: We aimed to observe the relationship between the pathological components of a deep venous thrombus (DVT), which was divided into three parts, and the findings on quantitative ultrasonic shear wave elastography (SWE) to increase the accuracy of thrombus staging in a rabbit model. METHODS: A flow stenosis-induced vein thrombosis model was used, and the thrombus was divided into three parts (head, body and tail), which were associated with corresponding observation points...
2017: PloS One
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