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https://www.readbyqxmd.com/read/28079606/relationship-between-alternative-resuscitation-strategies-host-response-and-injury-biomarkers-and-outcome-in-septic-shock-analysis-of-the-protocol-based-care-for-early-septic-shock-study
#1
John A Kellum, Francis Pike, Donald M Yealy, David T Huang, Nathan I Shapiro, Derek C Angus
OBJECTIVES: The Protocol-based Care for Early Septic Shock trial found no differences across alternative resuscitation strategies in all-cause mortality. A separate aim was to determine whether differences in resuscitation strategies affected trajectories of biomarkers of key pathways associated with downstream clinical outcomes of sepsis and whether there were differences in survival across treatment arms for patients with different baseline biomarker profiles. DESIGN: Secondary analysis of a large randomized clinical trial...
January 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28079604/prior-use-of-calcium-channel-blockers-is-associated-with-decreased-mortality-in-critically-ill-patients-with-sepsis-a-prospective-observational-study
#2
Maryse A Wiewel, Lonneke A van Vught, Brendon P Scicluna, Arie J Hoogendijk, Jos F Frencken, Aeilko H Zwinderman, Janneke Horn, Olaf L Cremer, Marc J Bonten, Marcus J Schultz, Tom van der Poll
OBJECTIVES: Experimental studies suggest that calcium channel blockers can improve sepsis outcome. The aim of this study was to determine the association between prior use of calcium channel blockers and the outcome of patients admitted to the ICU with sepsis. DESIGN: A prospective observational study. SETTING: The ICUs of two tertiary care hospitals in the Netherlands. PATIENTS: In total, 1,060 consecutive patients admitted with sepsis were analyzed, 18...
January 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28075532/clinical-and-biochemical-characterization-of-the-prothrombin-belgrade-mutation-in-a-large-serbian-pedigree-new-insights-into-antithrombin-resistance-mechanism
#3
Predrag Miljic, Maja Gvozdenov, Yuki Takagi, Akira Takagi, Iva Pruner, Marija Dragojevic, Branko Tomic, Jelena Bodrozic, Tetsuhito Kojima, Dragica Radojkovic, Valentina Djordjevic
BACKGROUND: The recently reported c.1787G>A mutation in the prothrombin gene leads to Arg596Gln replacement in the protein molecule (prothrombin Belgrade). This substitution impairs binding of antithrombin to thrombin and results in inherited thrombophilia, known as antithrombin resistance. OBJECTIVES: We aimed to elucidate the clinical and biochemical characteristics of thrombophilia associated with antithrombin resistance in a large Serbian family with the prothrombin Belgrade mutation...
January 11, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28069642/alpha-1-antitrypsin-enhances-islet-engraftment-by-suppression-of-instant-blood-mediated-inflammatory-reaction
#4
Jingjing Wang, Zhen Sun, Wenyu Gou, David B Adams, Wanxing Cui, Katherine A Morgan, Charlie Strange, Hongjun Wang
Islet cell transplantation has limited effectiveness because of an instant blood-mediated inflammatory reaction (IBMIR) that occurs immediately after cell infusion and leads to dramatic β cell death. In intraportal islet transplantation models using mouse and human islets, we demonstrated that alpha-1 antitrypsin (AAT, Prolastin-C), a serine protease inhibitor used for the treatment of AAT deficiency, inhibits IBMIR and cytokine-induced inflammation in islets. In mice, more diabetic recipients reached normoglycemia after intraportal islet transplantation when they were treated with AAT compared to mice treated with saline...
January 9, 2017: Diabetes
https://www.readbyqxmd.com/read/28060970/-evaluation-of-oral-anticoagulation-with-rivaroxaban-in-patients-with-new-onset-non-valvular-atrial-fibrillation
#5
Víctor Neira, Ramón Corbalán, Jaime Pereira, Olga Panes, Bernardita Garayar, Andrés Aizman, Silvana Llevaneras, Luis Villarroel
BACKGROUND: Atrial fibrillation (AF) generates a hypercoagulable state with an increased thrombin generation and raised levels of thrombin-antithrombin complexes, which results in a high risk of stroke and thromboembolism. AIM: To evaluate the anticoagulant effect of rivaroxaban by anti-Xa factor activity and its correlation with thrombin-antithrombin complexes, thrombin generation and prothrombin time in patients newly diagnosed with non-valvular AF. PATIENTS AND METHODS: Prospective study in patients with indication of anticoagulation...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28060110/antithrombin-iii-as-the-indicator-of-l-asparaginase-activity-in-children-treated-for-acute-lymphoblastic-leukemia
#6
Małgorzata Czogała, Walentyna Balwierz, Krystyna Sztefko, Iwona Rogatko
L-asparaginase (ASP) is widely used in the treatment of acute lymphoblastic leukemia (ALL) in children. Monitoring its activity is necessary because of the risk of drug inactivation as the result of an immune reaction. Besides allergic reactions, another frequent side effect of ASP treatment is coagulopathy, especially deficiency of antithrombin III (ATIII). The aim of this study was to analyze the relationship between ASP and ATIII activities and the possibility of ATIII activity use in an indirect ASP activity assessment...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28052306/laboratory-monitoring-of-parenteral-direct-thrombin-inhibitors
#7
Elizabeth M Van Cott, A Joshua Roberts, William E Dager
Argatroban and bivalirudin are parenteral direct inhibitors of the activity of thrombin, but, unlike heparin, can inhibit both soluble as well as clot-bound thrombin. These agents do not require antithrombin as a cofactor for activity. The parenteral direct thrombin inhibitors (DTIs) can be used in a variety of settings, including heparin-induced thrombocytopenia (HIT) or an allergy to heparin, and patients requiring anticoagulation for an invasive cardiovascular intervention. Both agents have a relatively short half-life in patients without organ system failure and are typically administered by continuous infusion...
January 4, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28039291/can-recombinant-human-thrombomodulin-increase-survival-among-patients-with-severe-septic-induced-disseminated-intravascular-coagulation-a-single-centre-open-label-randomised-controlled-trial
#8
Akiyoshi Hagiwara, Noriko Tanaka, Tatsuki Uemura, Wataru Matsuda, Akio Kimura
OBJECTIVE: To determine whether treatment with recombinant human thrombomodulin (rhTM) increases survival among patients with severe septic-induced disseminated intravascular coagulation (DIC). DESIGN: Single-centre, open-label, randomised controlled trial. SETTING: Single tertiary hospital. PARTICIPANT: 92 patients with severe septic-induced DIC. INTERVENTIONS: Patients with DIC scores ≥4, as defined by the Japanese Association of Acute Medicine, were diagnosed with DIC...
December 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/28038749/structure-and-anticoagulant-property-of-a-sulfated-polysaccharide-isolated-from-the-green-seaweed-monostroma-angicava
#9
Na Li, Xue Liu, Xiaoxi He, Shuyao Wang, Sujian Cao, Zheng Xia, Huali Xian, Ling Qin, Wenjun Mao
An anticoagulant-active polysaccharide PF2 was extracted with boiling water from the green seaweed Monostroma angicava, further purified by anion-exchange and size-exclusion chromatography. PF2 was a rhamnan-type sulfated polysaccharide with molecular weight of about 88.1kDa. Results of chemical and spectroscopic analyses demonstrated that PF2 consisted of→3)-α-l-Rhap-(1→ and →2)-α-l-Rhap-(1→residues, with partially branches at C-2 of→3)-α-l-Rhap-(1→residues. Sulfate groups were substituted at C-3 of →2)-α-l-Rhap-(1→ residues...
March 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28036320/case-report-of-severe-antithrombin-deficiency-during-extracorporeal-membrane-oxygenation-and-therapeutic-plasma-exchange-for-double-lung-transplantation
#10
Brittney Williams, Michael A Mazzeffi, Pablo G Sanchez, Si M Pham, Zachary Kon, Kenichi A Tanaka
Acquired antithrombin (AT) deficiency is not uncommon in cardiothoracic surgery because of heparin exposure and dilutional or consumptive losses. We report a case of acquired AT deficiency and resultant multiple deep vein thrombosis in a patient with pulmonary fibrosis on veno-venous extracorporeal membrane oxygenation who underwent double lung transplantation with intraoperative therapeutic plasma exchange (TPE) as a part of an immunomodulation regimen for allosensitization. Preoperative heparin anticoagulation resulted in AT deficiency, which was further exacerbated by TPE using albumin...
January 1, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28036282/sulodexide-pretreatment-attenuates-renal-ischemia-reperfusion-injury-in-rats
#11
Jianyong Yin, Weibin Chen, Fenfen Ma, Zeyuan Lu, Rui Wu, Guangyuan Zhang, Niansong Wang, Feng Wang
Sulodexide is a potent antithrombin agent, however, whether it has beneficial effects on renal ischemia-reperfusion injury (IRI) remains unknown. In the present study, we assessed the therapeutic effects of sulodexide in renal IRI and tried to investigate the potential mechanism. One dose of sulodexide was injected intravenously in Sprague-Dawley rats 30 min before bilateral kidney ischemia for 45 min. The animals were sacrificed at 3h and 24h respectively. Our results showed that sulodexide pretreatment improved renal dysfunction and alleviated tubular pathological injury at 24h after reperfusion, which was accompanied with inhibition of oxidative stress, inflammation and cell apoptosis...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28033029/higher-platelet-reactivity-and-platelet-monocyte-complex-formation-in-gram-positive-sepsis-compared-to-gram-negative-sepsis
#12
Rahajeng N Tunjungputri, Wouter van de Heijden, Rolf T Urbanus, Philip G de Groot, Andre van der Ven, Quirijn de Mast
Platelets may play a role in the high risk for vascular complications in Gram-positive sepsis. We compared the platelet reactivity of 15 patients with Gram-positive sepsis, 17 with Gram-negative sepsis and 20 healthy controls using a whole blood flow cytometry-based assay. Patients with Gram-positive sepsis had the highest median fluorescence intensity (MFI) of the platelet membrane expression of P-selectin upon stimulation with high dose adenosine diphosphate (ADP; P = 0.002 vs. Gram-negative and P = 0.005 vs...
December 29, 2016: Platelets
https://www.readbyqxmd.com/read/28028988/direct-oral-anticoagulants-in-patients-with-thrombophilia-challenges-in-diagnostic-evaluation-and-treatment
#13
REVIEW
Anetta Undas, Tadeusz Góralczyk
Direct oral anticoagulants (DOACs) or non-vitamin K oral anticoagulants (NOACs) are increasingly used in the prevention of recurrent venous thromboembolism (VTE), including that associated with thrombophilia. The efficacy of DOACs in thrombophilic patients, especially those with severe trombophilia or triple positive antiphospholipid syndrome (APS) with arterial thromboembolic events, remains controversial. Most case reports and case series indicate that DOACs are an attractive therapeutic option in the vast majority of these patients at high risk of recurrent VTE with more concerns raised in high-risk APS patients and these deficient in protein S (PS)...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28012344/an-efficient-anticoagulant-candidate-characterization-synthesis-and-in%C3%A2-vivo-study-of-a-fondaparinux-analogue-rrt1-17
#14
Guo-Qiang Zhang, Hongzhen Jin, Yunyan Zhao, Lina Guo, Xue Gao, Xiaoxue Wang, Shiyang Tie, Jie Shen, Peng George Wang, Hao Gan, Huifei Cui, Wei Zhao
Fondaparinux, a synthetic pentasaccharide anticoagulant based on heparin antithrombin-binding domain, is derived from a chemical synthesis with more than 50 steps. Herein, we identified nine analogues separated from commercially available crude fondaparinux sodium, and tested their anticoagulant activity in vitro. Based on the activity results, the most active derivative Rrt1.17 was chemically synthesized. Biological properties in vitro and in vivo indicated that the well-defined derivative Rrt1.17 was a more efficient anticoagulant candidate compared with fondaparinux...
December 2, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28012194/association-of-antenatal-antithrombin-activity-with-perinatal-liver-dysfunction-prospective-multicenter-study
#15
Mamoru Morikawa, Hirotada Suzuki, Mana Obata-Yasuoka, Michi Kasai, Hiroaki Itoh, Akihide Ohkuchi, Hiromi Hamada, Shigeru Aoki, Naohiro Kanayama, Hisanori Minakami
BACKGROUND AND AIM: Liver dysfunction with decreased antithrombin activity (AT) and/or thrombocytopenia is life-threatening in pregnant women. Whether AT is clinically useful for prediction of liver dysfunction remains unclear. METHODS: A total of 541 women were registered prospectively at gestational week 34.7 (20.0 - 41.4) with available data on antenatal AT and platelet count (PLC). RESULTS: Liver dysfunction defined as serum AST  >  45 IU/L concomitant with lactate dehydrogenase (LDH)  >  400 IU/L occurred in five women antenatally (≤ 2 weeks before delivery) and in 17 women postpartum (within 1 week postpartum)...
December 24, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28010922/risk-factors-for-symptomatic-venous-and-arterial-thromboembolism-in-newborns-children-and-adolescents-what-did-we-learn-within-the-last-20years
#16
Gili Kenet, Verena Limperger, Maria Shneyder, Ulrike Nowak-Göttl
Venous thrombosis (VTE) in children is increasingly diagnosed, as advanced medical care has increased treatment intensity of hospitalized pediatric patients. The aim of this review was to summarize the data available and to discuss the controversial issue of thrombophilia screening in the light of the pediatric data available. Follow-up data for VTE recurrence in children suggest a recurrence rate between 3% (neonates) and 21% in individuals with unprovoked VTE. Apart from underlying medical conditions, recently reported systematic reviews on pediatric VTE (70% provoked) have shown significant associations between thrombosis and presence of protein C-, protein S- and antithrombin deficiency, factor 5 (F5: rs6025), factor 2 (F2: rs1799963), even more pronounced when combined inherited thrombophilias [IT] were involved...
December 14, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28007564/structural-analysis-of-heparin-derived-3-o-sulfated-tetrasaccharides-antithrombin-binding-site-variants
#17
Yin Chen, Lei Lin, Isaac Agyekum, Xing Zhang, Kalib St Ange, Yanlei Yu, Fuming Zhang, Jian Liu, I Jonathan Amster, Robert J Linhardt
Heparin is a polysaccharide that is widely used as an anticoagulant drug. The mechanism for heparin's anticoagulant activity is primarily through its interaction with a serine protease inhibitor, antithrombin III (AT), that enhances its ability to inactivate blood coagulation serine proteases, including thrombin (factor IIa) and factor Xa. The AT-binding site in the heparin is one of the most well-studied carbohydrate-protein binding sites and its structure is the basis for the synthesis of the heparin pentasaccharide drug, fondaparinux...
December 20, 2016: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28005415/proteome-analysis-of-human-serum-proteins-adsorbed-onto-different-titanium-surfaces-used-in-dental-implants
#18
Francisco Romero-Gavilán, N C Gomes, Joaquin Ródenas, Ana Sánchez, Mikel Azkargorta, Ibon Iloro, Felix Elortza, Iñaki García Arnáez, Mariló Gurruchaga, Isabel Goñi, Julio Suay
Titanium dental implants are commonly used due to their biocompatibility and biochemical properties; blasted acid-etched Ti is used more frequently than smooth Ti surfaces. In this study, physico-chemical characterisation revealed important differences in roughness, chemical composition and hydrophilicity, but no differences were found in cellular in vitro studies (proliferation and mineralization). However, the deposition of proteins onto the implant surface might affect in vivo osseointegration. To test that hypothesis, protein layers formed on discs of both surface type after incubation with human serum were analysed...
January 2017: Biofouling
https://www.readbyqxmd.com/read/28005013/antithrombin-iii-deficiency-concomitant-with-atrial-fibrillation-causes-thrombi-in-all-chambers-2d-and-3d-echocardiographic-evaluation
#19
Mert İlker Hayıroğlu, Muhammed Keskin, Cevdet Dönmez, Muhammed Burak Günay, Şennur Ünal Dayı
No abstract text is available yet for this article.
December 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28004432/role-of-coagulation-factors-in-urological-malignancy-a-prospective-controlled-study-on-prostate-renal-and-bladder-cancer
#20
Aristeidis Alevizopoulos, Stavros Tyritzis, Ioannis Leotsakos, Ioanna Anastasopoulou, Christos Pournaras, Paraskevi Kotsis, Olga Katsarou, Christos Alamanis, Konstantinos Stravodimos, Constantinos Constantinides
OBJECTIVES: To study the behavior of specific coagulation factors in different types of non-metastatic urological cancers, and to identify their possible role as diagnostic and prognostic markers. METHODS: This was a prospective controlled study, which included three cancer patient groups and a control group of healthy individuals. The cancer subgroups consisted of renal (n = 44), prostate (n = 56) and bladder cancer (n = 47). We excluded patients receiving anticoagulant therapy, or with significant comorbidity...
December 22, 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
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