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https://www.readbyqxmd.com/read/28109122/bleeding-in-the-retroperitoneal-space-under-the-broad-ligament-as-a-result-of-uterine-perforation-after-dilatation-and-curettage-report-of-a-case
#1
Hisato Tokuda, Satoshi Nakago, Hiroki Kato, Tetsuya Oishi, Fumikazu Kotsuji
Uterine perforation, a complication of dilation and curettage, is typically recognized immediately after the procedure by clinical symptoms of peritoneal irritation resulting from intraperitoneal bleeding. Our patient complained of having an uncomfortable feeling, slight dizziness, palpitation in the sitting position and abdominal discomfort but did not show signs of peritoneal irritation 24 h after dilation and curettage. However, she suddenly complained of abdominal pain. Tenderness and rebound tenderness were detected at the lower abdominal wall...
January 21, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28109042/expression-and-characterization-of-a-codon-optimized-blood-coagulation-factor-viii
#2
S A Shestopal, J-J Hao, E Karnaukhova, Y Liang, M V Ovanesov, M Lin, J H Kurasawa, T K Lee, J H McVey, A G Sarafanov
BACKGROUND: Production of recombinant factor VIII (FVIII) is challenging due to its low expression. It was previously shown that codon-optimization of a B domain-deleted FVIII (BDD-FVIII) cDNA resulted in increased protein expression. However, it is well-recognized that synonymous mutations may affect the protein structure and function. OBJECTIVES: To compare biochemical properties of a BDD-FVIII expressed from codon-optimized (CO) and the wild-type (WT) cDNAs. METHODS: Each variant of the BDD-FVIII was expressed in several independent CHO cell lines, generated using a lentiviral platform...
January 21, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28108578/the-activated-clotting-time-in-cardiac-surgery-should-celite-or-kaolin-be-used
#3
Adrianus J De Vries, Annemieke Oude Lansink-Hartgring, Freek-Jan Fernhout, Rolf C G Huet, Edwin R van den Heuvel
OBJECTIVES: Both kaolin- and Celite-activated clotting times (ACT) are used to guide anticoagulation during cardiopulmonary bypass. It is unknown whether these methods lead to similar management procedures for anticoagulation in patients and are thus interchangeable in terms of bias, precision and variability. METHODS: We randomized 97 patients undergoing coronary artery bypass grafting or aortic valve replacement to either kaolin- or Celite-guided anticoagulation...
January 20, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28107663/antibacterial-anti-oxidant-electroactive-injectable-hydrogel-as-self-healing-wound-dressing-with-hemostasis-and-adhesiveness-for-cutaneous-wound-healing
#4
Xin Zhao, Hao Wu, Baolin Guo, Ruonan Dong, Yusheng Qiu, Peter X Ma
Injectable self-healing hydrogel dressing with multifunctional properties including anti-infection, anti-oxidative and conductivity promoting wound healing process will be highly desired in wound healing application and its design is still a challenge. We developed a series of injectable conductive self-healed hydrogels based on quaternized chitosan-g-polyaniline (QCSP) and benzaldehyde group functionalized poly(ethylene glycol)-co-poly(glycerol sebacate) (PEGS-FA) as antibacterial, anti-oxidant and electroactive dressing for cutaneous wound healing...
January 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28107496/studies-on-new-activities-of-enantiomers-of-2-2-hydroxypropanamido-benzoic-acid-antiplatelet-aggregation-and-antithrombosis
#5
Qili Zhang, Danlin Wang, Meiyan Zhang, Yunli Zhao, Zhiguo Yu
R-/S-2-(2-Hydroxypropanamido) benzoic acid (R-/S-HPABA), a marine-derived anti-inflammatory drug, however, the antiplatelet and antithrombotic effects have not been investigated. In this paper, the in vitro antiplatelet activities and in vivo antithrombotic effects of R-/S-HPABA were investigated, for the first time. The effects of R-/S-HPABA on platelet aggregation induced by adenosine diphosphate (ADP), collagen (COLL) and arachidonic acid (AA) were evaluated. In addition, the in vivo bleeding time, clotting time, collagen-epinephrine induced pulmonary thrombosis and common carotid artery thrombosis were also investigated in rats...
2017: PloS One
https://www.readbyqxmd.com/read/28107395/prevalence-of-pre-analytical-errors-in-clinical-chemistry-diagnostic-labs-in-sulaimani-city-of-iraqi-kurdistan
#6
Dereen Najat
BACKGROUND: Laboratory testing is roughly divided into three phases: a pre-analytical phase, an analytical phase and a post-analytical phase. Most analytical errors have been attributed to the analytical phase. However, recent studies have shown that up to 70% of analytical errors reflect the pre-analytical phase. The pre-analytical phase comprises all processes from the time a laboratory request is made by a physician until the specimen is analyzed at the lab. Generally, the pre-analytical phase includes patient preparation, specimen transportation, specimen collection and storage...
2017: PloS One
https://www.readbyqxmd.com/read/28106331/a-randomized-controlled-trial-of-fresh-frozen-plasma-for-coagulopathy-in-russell-s-viper-daboia-russelii-envenoming
#7
G K Isbister, S Jayamanne, F Mohamed, A H Dawson, K Maduwage, I Gawarammana, D G Lalloo, H J de Silva, F E Scorgie, L F Lincz, N A Buckley
BACKGROUND: Russell's viper (Daboia russelii) envenoming is a major health issue in South Asia and causes venom induced consumption coagulopathy (VICC). OBJECTIVES: We investigated the effect of fresh frozen plasma (FFP) and two antivenom doses in correcting VICC. METHODS: We undertook an open-label randomized controlled trial in patients with VICC at two Sri Lankan hospitals. Patients with suspected Russell's viper bites and coagulopathy were randomly allocated (1:1) high-dose antivenom (20 vials) or low-dose antivenom (10 vials) plus 4U FFP...
January 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28105277/design-and-synthesis-of-novel-meta-linked-phenylglycine-macrocyclic-fviia-inhibitors
#8
Jeremy M Richter, Daniel L Cheney, J Alex Bates, Anzhi Wei, Joseph M Luettgen, Alan R Rendina, Timothy M Harper, Rangaraj Narayanan, Pancras C Wong, Dietmar Seiffert, Ruth R Wexler, E Scott Priestley
Two novel series of meta-linked phenylglycine-based macrocyclic FVIIa inhibitors have been designed to improve the rodent metabolic stability and PK observed with the precursor para-linked phenylglycine macrocycles. Through iterative structure-based design and optimization, the TF/FVIIa Ki was improved to subnanomolar levels with good clotting activity, metabolic stability, and permeability.
January 12, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28104774/microrna-biomarkers-and-platelet-reactivity-the-clot-thickens
#9
REVIEW
Nicholas Sunderland, Philipp Skroblin, Temo Barwari, Rachael P Huntley, Ruifang Lu, Abhishek Joshi, Ruth C Lovering, Manuel Mayr
Over the last few years, several groups have evaluated the potential of microRNAs (miRNAs) as biomarkers for cardiometabolic disease. In this review, we discuss the emerging literature on the role of miRNAs and other small noncoding RNAs in platelets and in the circulation, and the potential use of miRNAs as biomarkers for platelet activation. Platelets are a major source of miRNAs, YRNAs, and circular RNAs. By harnessing multiomics approaches, we may gain valuable insights into their potential function. Because not all miRNAs are detectable in the circulation, we also created a gene ontology annotation for circulating miRNAs using the gene ontology term extracellular space as part of blood plasma...
January 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/28103832/thromboelastometry-analysis-of-thrombocytopenic-dengue-patients-a-cross-sectional-study
#10
Felipe Maia de Toledo Piza, Thiago Domingos Corrêa, Alexandre Rodrigues Marra, João Carlos Campos Guerra, Roseny Dos Reis Rodrigues, Andrea Aparecida Rocco Villarinho, Valdir Fernandes de Aranda, Sandra Christina Pereira Lima Shiramizo, Maria Roza de Jesus de Lima, Esper Georges Kallas, Alexandre Biasi Cavalcanti
BACKGROUND: Dengue virus infection (DVI) is a prevalent and potentially fatal viral disease associated with coagulopathy. So far, the coagulation profile of DVI patients with thrombocytopenia has not been assessed through a viscoelastic test such as rotational thromboelastometry. We aimed to describe the prevalence and characteristics of coagulation abnormalities in dengue fever outpatients with thrombocytopenia, addressed by both rotational thromboelastometry and conventional coagulation tests...
January 19, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28103327/isolation-characterization-and-evaluation-of-collagen-from-jellyfish-rhopilema-esculentum-kishinouye-for-use-in-hemostatic-applications
#11
Xiaochen Cheng, Ziyu Shao, Chengbo Li, Lejun Yu, Mazhar Ali Raja, Chenguang Liu
Hemostat has been a crucial focus since human body is unable to control massive blood loss, and collagen proves to be an effective hemostat in previous studies. In this study, collagen was isolated from the mesoglea of jellyfish Rhopilema esculentum Kishinouye and its hemostatic property was studied. The yields of acid-soluble collagen (ASC) and pepsin-soluble (PSC) were 0.12% and 0.28% respectively. The SDS-PAGE patterns indicated that the collagen extracted from jellyfish mesoglea was type I collagen. The lyophilized jellyfish collagen sponges were cross-linked with EDC and interconnected networks in the sponges were revealed by scanning electron microscope (SEM)...
2017: PloS One
https://www.readbyqxmd.com/read/28102731/microfluidic-whole-blood-testing-of-platelet-response-to-pharmacological-agents
#12
Ruizhi Li, Tilo Grosser, Scott L Diamond
Platelets present a number of intracellular and transmembrane targets subject to pharmacological modulation, either for cardiovascular disease reduction or as an unintended drug response. Microfluidic devices allow human blood to clot on a defined surface under controlled hemodynamic and pharmacological conditions. The potencies of a number of antiplatelet and anticancer drugs have been tested with respect to platelet deposition on collagen under flow. Inhibitors of cyclooxygenase-1 (COX-1) reduce platelet deposition, either when added ex vivo to blood or ingested orally by patients prior to testing...
January 19, 2017: Platelets
https://www.readbyqxmd.com/read/28102287/crotalus-atrox-venom-preconditioning-increases-plasma-fibrinogen-and-reduces-perioperative-hemorrhage-in-a-rat-model-of-surgical-brain-injury
#13
Cherine H Kim, Devin W McBride, Ronak Raval, Prativa Sherchan, Karen L Hay, Eric C K Gren, Wayne Kelln, Tim Lekic, William K Hayes, Brian S Bull, Richard Applegate, Jiping Tang, John H Zhang
Perioperative bleeding is a potentially devastating complication in neurosurgical patients, and plasma fibrinogen concentration has been identified as a potential modifiable risk factor for perioperative bleeding. The aim of this study was to evaluate preconditioning with Crotalus atrox venom (Cv-PC) as potential preventive therapy for reducing perioperative hemorrhage in the rodent model of surgical brain injury (SBI). C. atrox venom contains snake venom metalloproteinases that cleave fibrinogen into fibrin split products without inducing clotting...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101938/the-second-team-haemophilia-education-meeting-2016-frankfurt-germany
#14
Erik Berntorp, Yesim Dargaud, Daniel Hart, Sébastien Lobet, Maria Elisa Mancuso, Roseline d'Oiron, David Perry, Debra Pollard, Marijke van den Berg, Jan Blatný, Hervé Chambost, Andrea S Doria, Pål André Holme, Radoslaw Kaczmarek, Lorenzo Mantovani, Paul McLaughlin, Lochana Nanayakkara, Pia Petrini, Thomas Sannié, Edward Laane, Raquel Maia, Athina Dettoraki, Anna Farrell, Susan Halimeh, Sayma Raza, Stephanie Taylor
The first Team Haemophilia Education (THE) Meeting was held on 7-8 May 2015 in Amsterdam, The Netherlands. It aimed to promote the optimal care of patients with haemophilia through education of the multidisciplinary treatment team. This was achieved by reviewing the latest developments in haemophilia management, considering how these can be implemented in the clinic to improve patient care and providing a platform for networking and debate for all haemophilia treatment team members. The second THE Meeting was held on 19-20 May in Frankfurt, Germany, and participants included doctors, nurses, physiotherapists, patient representatives and data management staff from 20 different countries...
January 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28101869/fibrin-formation-structure-and-properties
#15
John W Weisel, Rustem I Litvinov
Fibrinogen and fibrin are essential for hemostasis and are major factors in thrombosis, wound healing, and several other biological functions and pathological conditions. The X-ray crystallographic structure of major parts of fibrin(ogen), together with computational reconstructions of missing portions and numerous biochemical and biophysical studies, have provided a wealth of data to interpret molecular mechanisms of fibrin formation, its organization, and properties. On cleavage of fibrinopeptides by thrombin, fibrinogen is converted to fibrin monomers, which interact via knobs exposed by fibrinopeptide removal in the central region, with holes always exposed at the ends of the molecules...
2017: Sub-cellular Biochemistry
https://www.readbyqxmd.com/read/28101662/strategies-to-prevent-cast-formation-in-patients-with-plastic-bronchitis-undergoing-heart-transplantation
#16
John J Parent, Robert K Darragh, Jeffrey G Gossett, Thomas D Ryan, Chet R Villa, Angela Lorts, John L Jefferies, Jeffrey A Towbin, Clifford Chin
Plastic bronchitis, a rare complication after Fontan palliation, carries a high morbidity and mortality risk. Heart transplantation is an effective treatment option, but casts may occur in the early post-operative period. We present a case series detailing peri-operative management strategies to minimize morbidity and mortality related to plastic bronchitis in patients undergoing heart transplantation. Patient 1 received no treatment pre-, intra-, or post-transplant for prevention of bronchial casts and developed severe respiratory acidosis 18 h following transplant...
January 19, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28101312/cryoglobulin-test-and-cryoglobulinemia-hepatitis-c-virus-related
#17
REVIEW
Francesca Gulli, Stefano Angelo Santini, Cecilia Napodano, Patrizia Bottoni, Krizia Pocino, Gian Ludovico Rapaccini, Umberto Basile
Cryoglobulins are immunoglobulins that precipitate in serum at temperatures below 37°C and resolubilize upon warming. The clinical syndrome of cryoglobulinemia usually includes purpura, weakness, and arthralgia, but the underlying disease may also contribute other symptoms. Blood samples for cryoglobulin are collected, transported, clotted and spun at 37°C, before the precipitate is allowed to form when serum is stored at 4°C in a Wintrobe tube for at least seven days. The most critical and confounding factor affecting the cryoglobulin test is when the preanalytical phase is not fully completed at 37°C...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28100995/a-rare-case-of-intraductal-papillary-mucinous-neoplasm-of-the-biliary-duct-in-a-patient-with-prostate-adenocarcinoma
#18
Ravish Parekh, Gregory Krol, Cyrus Piraka, Surinder Batra
Intraductal papillary mucinous neoplasms (IPMNs) are mucin-producing papillary neoplasms of the pancreatic or biliary ductal system that exhibit variable cellular atypia and cause ductal dilation. There are few reported cases of IPMN arising from the biliary tree in the literature. It has a higher propensity to undergo malignant transformation compared to IPMN arising from the pancreatic duct. An 80-year-old male underwent cross-sectional tomography (CT) imaging of the abdomen for evaluation of prostate adenocarcinoma, which revealed an incidental 2...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28100834/soft-robotic-sleeve-supports-heart-function
#19
Ellen T Roche, Markus A Horvath, Isaac Wamala, Ali Alazmani, Sang-Eun Song, William Whyte, Zurab Machaidze, Christopher J Payne, James C Weaver, Gregory Fishbein, Joseph Kuebler, Nikolay V Vasilyev, David J Mooney, Frank A Pigula, Conor J Walsh
There is much interest in form-fitting, low-modulus, implantable devices or soft robots that can mimic or assist in complex biological functions such as the contraction of heart muscle. We present a soft robotic sleeve that is implanted around the heart and actively compresses and twists to act as a cardiac ventricular assist device. The sleeve does not contact blood, obviating the need for anticoagulation therapy or blood thinners, and reduces complications with current ventricular assist devices, such as clotting and infection...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28098662/management-of-a-patient-with-antiphospholipid-syndrome-undergoing-aortic-valve-replacement-using-the-hepcon-hemostasis-management-system-plus-and-rotational-thromboelastometry-a-case-report
#20
Yuriko Samejima, Mitsuharu Kodaka, Junko Ichikawa, Tetsu Mori, Kazuyoshi Ando, Keiko Nishiyama, Makiko Komori
A 72-year-old woman with antiphospholipid syndrome underwent aortic valve replacement. Her preoperative activated partial thromboplastin time was 61.7 seconds and activated clotting time was 219 seconds. During cardiopulmonary bypass, the Hepcon Hemostasis Management System (HMS) Plus determined the heparin dose needed to maintain whole-body heparin at 3 U/mL. After cardiopulmonary bypass, 100 mg of protamine was administered based on heparin-protamine neutralization, and the activated clotting time decreased...
January 16, 2017: A & A Case Reports
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