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Anti coagulants

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https://www.readbyqxmd.com/read/28803057/cross-reactivity-and-cross-immunomodulation-between-venoms-of-the-snakes-bothrops-asper-crotalus-simus-and-lachesis-stenophrys-and-its-effect-in-the-production-of-polyspecific-antivenom-for-central-america
#1
Cynthia Arroyo, Sergio Solano, Álvaro Segura, María Herrera, Ricardo Estrada, Mauren Villalta, Mariángela Vargas, José María Gutiérrez, Guillermo León
A mixture of the venoms of Bothrops asper, Crotalus simus and Lachesis stenophrys is used as immunogen to produce the polyspecific Central American antivenom (PoliVal-ICP). In this work, we studied the ability of each of these venoms to modulate the antibody response induced by the other two venoms included in the immunization mixture. For that, equine monospecific, bispecific and polyspecific antivenoms were prepared and compared regarding their ability to neutralize the phospholipase A2, coagulant and lethal activities of each venom, and their anti-venom antibodies concentration...
August 9, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28801523/dietary-modulation-of-oxylipins-in-cardiovascular-disease-and-aging
#2
Stephanie P B Caligiuri, Mihir Parikh, Aleksandra Stamenkovic, Grant N Pierce, Harold M Aukema
Oxylipins are a group of fatty acid metabolites generated via oxygenation of polyunsaturated fatty acids and are involved in processes such as inflammation, immunity, pain, vascular tone and coagulation. As a result, oxylipins are implicated in many conditions characterized by these processes including cardiovascular disease and aging. The best characterized oxylipins in relation to cardiovascular disease are derived from the ω-6 fatty acid arachidonic acid. These oxylipins generally increase inflammation, hypertension and platelet aggregation, although not universally...
August 11, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28799521/transcatheter-mitral-valve-replacement-long-term-outcomes-of-first-in-man-experience-with-an-apically-tethered-device-a-case-series-from-a-single-centre
#3
Alison Duncan, Anan Daqa, James Yeh, Simon Davies, Anselm Uebing, Cesare Quarto, Neil Moat
AIMS: Transcatheter mitral valve replacement (TMVR) is a novel technique for treating mitral regurgitation. We report 18-month/2-year outcomes of the 5 first-in-man patients undergoing chronic TMVR with the Tendyne device. METHODS AND RESULTS: Five patients (STS score 14%-23%) underwent TMVR using a Tendyne system under compassionate use at a single centre. 1 patient (who was noncompliant with anti-coagulation) died 9 months after TMVR following a cerebrovascular accident...
August 13, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28799251/comparison-of-anticoagulation-regimens-for-pregnant-women-with-prosthetic-heart-valves-a-meta-analysis-of-prospective-studies
#4
Jing Wang, Kangqi Li, Hongyan Li, Weiwei Zhu, Haiyan Sun, Congxiao Lu
INTRODUCTION: Pregnancy is associated with a hypercoagulable state, which makes pregnant women with prosthetic heart valves at high risk of thromboembolism. Proper anticoagulation regimen should take both the maternal protection and the fetal outcomes into consideration. However, no consensus on the present anticoagulation regimen for those women has been reached yet, especially in the first trimester of pregnancy. AIMS: The present meta-analysis is conducted to compare anticoagulation efficiency and feto-maternal complications of heparin and warfarin in the first trimester...
August 11, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28790293/-critical-care-managements-after-lung-transplantation
#5
Masaki Anraku
Lung transplantation is a viable treatment option for patients with end-stage lung diseases such as interstitial pneumonia/pulmonary fibrosis, emphysema, pulmonary hypertension, and so on. Collecting available clinical, physiological, serological, and surgical information of both donor and recipient is vital when planning relevant postoperative managements. The goal of the managements is to keep the transplanted lung (s) functional while preventing/treating infection, rejection, and ischemiareperfusion lung injury...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28789672/challenges-in-the-diagnosis-and-management-of-anti-phospholipid-syndrome-a-case-from-cameroon
#6
Ahmadou M Jingi, Liliane Mfeukeu-Kuate, Aurel T Tankeu, Narcisse Assene Ateba, Edvine Wawo Yonta, Jean Jacques Noubiap
BACKGROUND: Anti-phospholipid syndrome (APLS) is a condition characterized by the presence of raised plasma levels of anti-phospholipid antibodies associated with thrombo-embolic disease and/or poor obstetrical outcomes in women. The epidemiology of APLS is unknown in most sub-Saharan African countries due to limited access to diagnosis tools. We report the case of APLS in a 29-year-old obese woman that was preceded by pre-eclampsia and fetal death. The diagnosis of APLS was made during a thrombo-embolic episode 4 years after the poor obstetrical outcome...
August 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28781191/phase-i-study-of-dalteparin-in-combination-with-sunitinib-in-patients-with-metastatic-clear-cell-renal-carcinoma
#7
Madelon Q Wentink, Henk M W Verheul, Sumanta K Pal, Saby George, Johannes Voortman, Pongwut Danchaivijitr, Remi Adelaiye, Diane Poslinski, Adrienne Groman, Alan Hutson, Roberto Pili
BACKGROUND: Based on the tumor-driven concomitant activation of angiogenesis and coagulation we conducted a phase I combination study of sunitinib with the low molecular weight heparin dalteparin in patients with metastatic clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS: Patients received standard treatment with sunitinib (50 mg daily, 4 weeks on, 2 weeks off). During the second week of no sunitinib in the first cycle (week 6) patients received dalteparin monotherapy (in escalating doses)...
July 14, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28780576/mechanical-and-surgical-bioprosthetic-valve-thrombosis
#8
REVIEW
Wei Yao Lim, Guy Lloyd, Sanjeev Bhattacharyya
Valve thrombosis can occur in mechanical prosthetic valves and is increasingly recognised in transcatheter and surgically implanted bioprosthetic valves. The risk of thrombosis of mechanical valves is higher in the mitral position compared with aortic position and in older generation valves (ball and cage valves). There is a wide spectrum of presentation from the asymptomatic patient to those with embolic complications or cardiogenic shock. A combination of transthoracic and transesophageal echocardiography is required to assess the haemodynamic effect of thrombosis (valve gradients and area), leaflet motion and thrombus size...
August 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28777290/anti-coagulant-and-anti-thrombotic-properties-of-blacklip-abalone-haliotis-rubra-in-vitro-and-animal-studies
#9
Hafiz Ansar Rasul Suleria, Paul P Masci, Kong-Nan Zhao, Rama Addepalli, Wei Chen, Simone A Osborne, Glenda C Gobe
Sulphated polysaccharides with anti-thrombotic and anti-coagulant activities have been found in various marine biota. In this study, a previously characterised anti-thrombotic and anti-coagulant extract from blacklip abalone was fractionated by anion exchange chromatography (AEC), pooled (on a sulphated polysaccharide basis) and administered to Wistar rats via oral gavage (N = 8) for assessment as an oral therapeutic. To ensure that the preparation had anti-coagulant activity prior to oral administration, it was assessed in rat blood by thromboelastography (TEG) significantly increasing reaction (R) time (or time until clot formation)...
August 4, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28775134/emergency-coagulation-assessment-during-treatment-with-direct-oral-anticoagulants-limitations-and-solutions
#10
Matthias Ebner, Ingvild Birschmann, Andreas Peter, Florian Härtig, Charlotte Spencer, Joachim Kuhn, Gunnar Blumenstock, Christine S Zuern, Ulf Ziemann, Sven Poli
BACKGROUND AND PURPOSE: In patients receiving direct oral anticoagulants (DOACs), emergency treatment like thrombolysis for acute ischemic stroke is complicated by insufficient availability of DOAC-specific coagulation tests. Conflicting recommendations have been published concerning the use of global coagulation assays for ruling out relevant DOAC-induced anticoagulation. METHODS: Four hundred eighty-one samples from 96 DOAC-treated patients were tested using prothrombin time (PT), activated partial thromboplastin time (aPTT) and thrombin time (TT), DOAC-specific assays (anti-Xa activity, diluted TT), and liquid chromatography-tandem mass spectrometry...
August 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28774626/formation-and-control-of-disinfection-byproducts-and-toxicity-during-reclaimed-water-chlorination-a-review
#11
REVIEW
Ye Du, Xiao-Tong Lv, Qian-Yuan Wu, Da-Yin Zhang, Yu-Ting Zhou, Lu Peng, Hong-Ying Hu
Chlorination is essential to the safety of reclaimed water; however, this process leads to concern regarding the formation of disinfection byproducts (DBPs) and toxicity. This study reviewed the formation and control strategies for DBPs and toxicity in reclaimed water during chlorination. Both regulated and emerging DBPs have been frequently detected in reclaimed water during chlorination at a higher level than those in drinking water, indicating they pose a greater risk to humans. Luminescent bacteria and Daphnia magna acute toxicity, anti-estrogenic activity and cytotoxicity generally increased after chlorination because of the formation of DBPs...
August 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28772696/effect-of-immobilized-antithrombin-iii-on-the-thromboresistance-of-polycarbonate-urethane
#12
Karin Lukas, Karin Stadtherr, Andre Gessner, Daniel Wehner, Thomas Schmid, Hans Peter Wendel, Christof Schmid, Karla Lehle
The surface of foils and vascular grafts made from a thermoplastic polycarbonate urethanes (PCU) (Chronoflex AR) were chemically modified using gas plasma treatment, binding of hydrogels-(1) polyethylene glycol bisdiamine and carboxymethyl dextran (PEG-DEX) and (2) polyethyleneimine (PEI)-and immobilization of human antithrombin III (AT). Their biological impact was tested in vitro under static and dynamic conditions. Static test methods showed a significantly reduced adhesion of endothelial cells, platelets, and bacteria, compared to untreated PCU...
March 24, 2017: Materials
https://www.readbyqxmd.com/read/28759434/development-of-hydrophilic-go-zno-pes-membranes-for-treatment-of-pharmaceutical-wastewater
#13
O T Mahlangu, R Nackaerts, B B Mamba, A R D Verliefde
Membrane application in water reclamation is challenged by fouling which deteriorates membrane performance in terms of permeate flux and solute rejection. Several studies focusing on antifouling membranes incorporated with nanoparticles have been carried out, but these membranes are not yet a viable solution due to their high energy requirements and inability to completely remove or degrade trace organic compounds (TOrCs). Therefore, this study aims at fabricating polyethersulfone (PES) membranes for treatment of pharmaceutical wastewater by using a unique membrane synthesis approach...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28757104/-what-haemostatic-technique-should-we-use-for-opportunistic-salpingectomy-during-benign-laparoscopic-hysterectomy
#14
G Lamblin, G Thiberville, A Bansac Lamblin, S Moret, P Du-Mesnildot, C Rannou, I Ploton, P Chabert, G Chene
OBJECTIVE: To compare ovarian function before and after laparoscopic hysterectomy with bilateral salpingectomy for benign lesions with two different systems of haemostasis. METHODS: In this prospective randomized study comparing two types of energy used for coagulation in bilateral salpingectomy (group A: bipolar electric energy, versus group B: ultrasonic advanced energy [Harmonic(®)]), forty consecutive non-menopausal patients undergoing laparoscopic hysterectomy for benign lesions were included...
July 27, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28756923/atractylenolide-%C3%A2-protects-against-lipopolysaccharide-induced-disseminated-intravascular-coagulation-by-anti-inflammatory-and-anticoagulation-effect
#15
Xiao-Mei Tang, Zhi-Kai Liao, You-Wei Huang, Xi Lin, Liang-Cai Wu
OBJECTIVE: To investigate whether atractylenolide Ⅰ (ATL-Ⅰ) has protective effect on lipopolysaccharide (LPS)-induced disseminated intravascular coagulation (DIC) in vivo and in vitro, and explore whether NF-κB signaling pathway is involved in ATL-Ⅰ treatment. METHODS: New Zealand white rabbits were injected with LPS through marginal ear vein over a period of 6 h at a rate of 600 μg/kg (10 mL/h). Similarly, in the treatment groups, 1.0, 2.0, or 5.0 mg/kg ATL-Ⅰ were given...
June 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28754863/pathological-expression-of-tissue-factor-confers-promising-antitumor-response-to-a-novel-therapeutic-antibody-sc1-in-triple-negative-breast-cancer-and-pancreatic-adenocarcinoma
#16
Xuesai Zhang, Qingrou Li, Hui Zhao, Lanping Ma, Tao Meng, Jianchang Qian, Rui Jin, Jingkang Shen, Ker Yu
The pathological presence of tissue factor (TF) in cancer cells promotes tumor-initiated thrombosis and cancer metastasis. We found that TF is aberrantly present in large percentage of aggressive triple negative breast cancer (TNBC) and pancreatic adenocarcinoma (PaC), two most lethal forms of malignancy that urgently need effective treatment. TF expression in TNBC clustered with higher levels of vimentin, basal-type keratins KRT5/14 and caveolin-1 but lower levels of luminal-type biomarkers. We developed a novel and specific anti-TF therapeutic antibody SC1, which displayed an exceedingly high potency against TF extracellular domain (EC50: 0...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28752248/antiplatelet-agents-for-cancer-treatment-a-real-perspective-or-just-an-echo-from-the-past
#17
Marek Z Wojtukiewicz, Dominika Hempel, Ewa Sierko, Stephanie C Tucker, Kenneth V Honn
The association between coagulation and cancer development has been observed for centuries. However, the connection between inflammation and malignancy is also well-recognized. The plethora of evidence indicates that among multiple hemostasis components, platelets play major roles in cancer progression by providing surface and granular contents for several interactions as well as behaving like immune cells. Therefore, the anticancer potential of anti-platelet therapy has been intensively investigated for many years...
July 27, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28752066/a-case-of-idiopathic-spontaneous-intratesticular-hemorrhage
#18
Takumi Takeuchi, Yumiko Okuno, Hiroki Tanaka, Koji Mikami
A 21-year-old man presented with acute-onset left lower abdominal pain that had initially developed 8 hours earlier. He was not given any medication including anti-coagulants. He denied trauma. On palpation, the left testis was slightly swollen and showed tenderness. The suspected diagnosis was testicular torsion, and surgical exploration was indicated. On visual inspection, the whole testis was black. The spermatic cord was neither distorted nor black. Testicular torsion could not be completely ruled out; thus, left orchiectomy was performed...
September 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28750436/-retinal-vascular-occlusion-modern-therapeutic-approaches
#19
Moritz Pettenkofer, Nicolas Feltgen, Nikolaus Feucht, Chris P Lohmann, Mathias M Maier
Retinal artery occlusion (RAO) should be evaluated as an emergency and can be seen as an ocular analogue to the cerebral apoplex. Both have the same arteriosclerotic risk factors, which are also responsible for cardiac, circulatory and cerebrovascular diseases. That is why an intensive interdisciplinary clarification is necessary to recognize possible comorbidities in time and, if necessary, to treat them. The current therapeutic possibilities of an acute RAO are very limited in their efficiency regarding visual improvement...
July 27, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28747771/different-potential-of-extracellular-vesicles-to-support-thrombin-generation-contributions-of-phosphatidylserine-tissue-factor-and-cellular-origin
#20
Carla Tripisciano, René Weiss, Tanja Eichhorn, Andreas Spittler, Thomas Heuser, Michael Bernhard Fischer, Viktoria Weber
Cells release diverse types of vesicles constitutively or in response to proliferation, injury, inflammation, or stress. Extracellular vesicles (EVs) are crucial in intercellular communication, and there is emerging evidence for their roles in inflammation, cancer, and thrombosis. We investigated the thrombogenicity of platelet-derived EVs, which constitute the majority of circulating EVs in human blood, and assessed the contributions of phosphatidylserine and tissue factor exposure on thrombin generation. Addition of platelet EVs to vesicle-free human plasma induced thrombin generation in a dose-dependent manner, which was efficiently inhibited by annexin V, but not by anti-tissue factor antibodies, indicating that it was primarily due to the exposure of phosphatidylserine on platelet EVs...
July 26, 2017: Scientific Reports
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