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Thrombosis models

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https://www.readbyqxmd.com/read/28218693/propylene%C3%A2-glycol%C3%A2-alginate%C3%A2-sodium%C3%A2-sulfate%C3%A2-alleviates%C3%A2-cerulein-induced%C3%A2-acute%C3%A2-pancreatitis%C3%A2-by%C3%A2-modulating%C3%A2-the%C3%A2-mek-erk%C3%A2-pathway%C3%A2-in%C3%A2-mice
#1
Hui Zhang, Yueyue Li, Linqiang Li, Hua Liu, Liangkai Hu, Ying Dai, Jianqing Chen, Shuqi Xu, Weimin Chen, Xiaorong Xu, Xuanfu Xu
Previous studies have focused on the effects of propylene glycol alginate sodium sulfate  (PSS)  against  thrombosis,  but  the  anti-inflammatory  potential  is  unknown.  Therefore,  we  specifically focused on the protective effects of PSS on cerulein-induced acute pancreatitis (AP)  using a mouse model, and investigated the mechanism of PSS on autophagy and apoptosis via the  Mitogen-activated  protein  kinase  (MEK)/extracellular  signal-regulated  kinase  (ERK)  pathway...
February 17, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28218279/multi-constituent-simulation-of-thrombus-deposition
#2
Wei-Tao Wu, Megan A Jamiolkowski, William R Wagner, Nadine Aubry, Mehrdad Massoudi, James F Antaki
In this paper, we present a spatio-temporal mathematical model for simulating the formation and growth of a thrombus. Blood is treated as a multi-constituent mixture comprised of a linear fluid phase and a thrombus (solid) phase. The transport and reactions of 10 chemical and biological species are incorporated using a system of coupled convection-reaction-diffusion (CRD) equations to represent three processes in thrombus formation: initiation, propagation and stabilization. Computational fluid dynamic (CFD) simulations using the libraries of OpenFOAM were performed for two illustrative benchmark problems: in vivo thrombus growth in an injured blood vessel and in vitro thrombus deposition in micro-channels (1...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217396/predictive-model-of-length-of-stay-and-discharge-destination-in-neuroscience-admissions
#3
M M Stecker, M Stecker, J Falotico
BACKGROUND: The purpose of this study was to try and determine the best predictors of hospital length of stay and discharge destination in patients admitted to a neuroscience service. METHODS: Valid data was collected for 170 patients. Variables included age, gender, location prior to admission, principle diagnosis, various physiological measurements upon admission, comorbidity, independence in various activities of daily living prior to admission, length of stay, and disposition upon discharge...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28217251/biliary-complications-following-liver-transplantation-single-center-experience-over-three-decades-and-recent-risk-factors
#4
Alexander Kaltenborn, André Gutcke, Jill Gwiasda, Jürgen Klempnauer, Harald Schrem
AIM: To identify independent risk factors for biliary complications in a center with three decades of experience in liver transplantation. METHODS: A total of 1607 consecutive liver transplantations were analyzed in a retrospective study. Detailed subset analysis was performed in 417 patients, which have been transplanted since the introduction of Model of End-Stage Liver Disease (MELD)-based liver allocation. Risk factors for the onset of anastomotic biliary complications were identified with multivariable binary logistic regression analyses...
January 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28217250/advanced-non-alcoholic-steatohepatitis-cirrhosis-a-high-risk-population-for-pre-liver-transplant-portal-vein-thrombosis
#5
Jonathan G Stine, Curtis K Argo, Shawn J Pelletier, Daniel G Maluf, Stephen H Caldwell, Patrick G Northup
AIM: To examine if liver transplant recipients with high-risk non-alcoholic steatohepatitis (NASH) are at increased risk for pre-transplant portal venous thrombosis. METHODS: Data on all liver transplants in the United States from February 2002 through September 2014 were analyzed. Recipients were sorted into three distinct groups: High-risk (age > 60, body mass index > 30 kg/m(2), hypertension and diabetes), low-risk and non-NASH cirrhosis. Multivariable logistic regression models were constructed...
January 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28214386/management-and-prognosis-of-hcc-in-the-elderly-results-of-an-in-field-multicenter-cohort-study
#6
Mauro Borzio, Elena Dionigi, Alessandro Vitale, Angelo Rossini, Massimo Marignani, Fabio Fornari, Susanna Vicari, Ilario De Sio, Fabio Farinati, Emanuela Bertolini, Filippo Oliveri, Gioacchino Leandro, Giampiero Francica, Mario Mitra, Barbara Omazzi, Sergio Boccia, Andrea Salmi, Anna Toldi, Rodolfo Sacco
AIMS: This multicentre cohort study evaluated the role of aging on clinical characteristics, treatment allocation, and outcome of new HCCs, in clinical practice. MATERIAL AND METHODS: From September 2008, 541 patients aged > 70 years old (elderly group), and 527 ≤ 70 years old (non elderly group) with newly diagnosed HCC were consecutively enrolled in 30 Italian centres. Differences in clinical characteristics and treatment allocation between groups were described by a multivariable logistic regression model measuring the inverse probability weight to meet the elderly group...
February 18, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28210634/potential-of-a-pharmacogenetic-guided-algorithm-to-predict-optimal-warfarin-dosing-in-a-high-risk-hispanic-patient-role-of-a-novel-nqo1-2-polymorphism
#7
Dagmar F Hernandez-Suarez, Karla Claudio-Campos, Javier E Mirabal-Arroyo, Bianca A Torres-Hernández, Angel López-Candales, Kyle Melin, Jorge Duconge
Deep abdominal vein thrombosis is extremely rare among thrombotic events secondary to the use of contraceptives. A case to illustrate the clinical utility of ethno-specific pharmacogenetic testing in warfarin management of a Hispanic patient is reported. A 37-year-old Hispanic Puerto Rican, non-gravid female with past medical history of abnormal uterine bleeding on hormonal contraceptive therapy was evaluated for abdominal pain. Physical exam was remarkable for unspecific diffuse abdominal tenderness, and general initial laboratory results-including coagulation parameters-were unremarkable...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28208204/thrombophilic-evaluation-in-patients-with-acute-pulmonary-embolism
#8
Scott M Stevens, Jack E Ansell
Patients with acute pulmonary embolism (PE) are often tested for thrombophilias, which are hereditary and acquired conditions that predispose to thrombosis. If a hereditary condition is identified, then testing is often performed on members of the patient's family. Testing for these conditions can be complex, as the presence of acute thrombosis and antithrombotic therapies can make the results of many tests unreliable. Many risk factors for thrombosis exist that are not routinely assessed by laboratory testing, and it is likely that many hereditary thrombophilia conditions remain to be discovered...
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28205126/estimation-of-diagnosis-and-prognosis-in-et-by-assessment-of-calr-and-jak2-v617f-mutations-and-laboratory-findings-a-meta-analysis
#9
REVIEW
N Saki, R Shirzad, F Rahim, A Saki Malehi
BACKGROUND: Essential thrombocythemia (ET) is a benign disease with slow progress in which thrombosis is a cause of mortality. JAK2(V617F) and calreticulin (CALR) are the most frequent mutations in this disease. In this systematic review and meta-analysis, we compared the prevalence of JAK2(V617F) and CALR mutations in ET and examined the incidence of thrombosis and other hematologic indices. METHODS: After choosing MeSH keywords, including essential thrombocythemia, JAK2(V617F), calreticulin, prognosis, and diagnosis, as well as searching Medline/PubMed and Scopus, 12 papers were selected...
February 15, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28197826/safety-and-efficacy-of-a-novel-abluminal-groove-filled-biodegradable-polymer-sirolimus-eluting-stent
#10
Jinzhou Zhu, Huizhu Liu, Haipo Cui, Zhirong Tang, Chengli Song, Ruiyan Zhang
Late stent thrombosis (LST) following drug-eluting stent (DES) implantation in patients with coronary artery disease (CAD) is often associated with delayed vascular healing, resulting from vascular inflammation and hypersensitivity to durable polymers and drugs. Therefore, DES design, materials, and coatings have been technologically revolutionized. Herein, we designed a novel abluminal groove-filled biodegradable polymer sirolimus-eluting stent (AGF-BP-SES), with a sirolimus content of only about one-third of traditional DES...
March 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28196814/racial-ethnic-disparities-in-acute-stroke-care-in-the-florida-puerto-rico-collaboration-to-reduce-stroke-disparities-study
#11
Ralph L Sacco, Hannah Gardener, Kefeng Wang, Chuanhui Dong, Maria A Ciliberti-Vargas, Carolina M Gutierrez, Negar Asdaghi, W Scott Burgin, Olveen Carrasquillo, Enid J Garcia-Rivera, Ulises Nobo, Sofia Oluwole, David Z Rose, Michael F Waters, Juan Carlos Zevallos, Mary Robichaux, Salina P Waddy, Jose G Romano, Tatjana Rundek
BACKGROUND: Racial-ethnic disparities in acute stroke care can contribute to inequality in stroke outcomes. We examined race-ethnic disparities in acute stroke performance metrics in a voluntary stroke registry among Florida and Puerto Rico Get With the Guidelines-Stroke hospitals. METHODS AND RESULTS: Seventy-five sites in the Florida Puerto Rico Stroke Registry (66 Florida and 9 Puerto Rico) recorded 58 864 ischemic stroke cases (2010-2014). Logistic regression models examined racial-ethnic differences in acute stroke performance measures and defect-free care (intravenous tissue plasminogen activator treatment, in-hospital antithrombotic therapy, deep vein thrombosis prophylaxis, discharge antithrombotic therapy, appropriate anticoagulation therapy, statin use, smoking cessation counseling) and temporal trends...
February 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28194217/schisandra-chinensis-and-morus-alba-synergistically-inhibit-in-vivo-thrombus-formation-and-platelet-aggregation-by-impairing-the-glycoprotein-vi-pathway
#12
Dong-Seon Kim, Muhammad Irfan, Yoon-Young Sung, Seung Hyung Kim, Sun Haeng Park, Young Hyun Choi, Man Hee Rhee, Ho Kyoung Kim
Morus alba L. (MAL) extract has been used in traditional medicine for its cardioprotective and antiplatelet effects, while another herbal remedy, Schisandra chinensis (SCC), has been reported to have anti-inflammatory and antioxidant properties. We evaluated underlying cellular changes exerted by extracts of these plants on platelet function and effects of SCC + MAL on in vivo thrombus formation using AV shunt and tail thrombosis-length models in rats. In vitro platelet aggregation, granule secretion, and [Ca(2+)] i release assays were carried out...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28193831/%C3%AE-2-glycoprotein-i-recognition-drives-th1-inflammation-in-atherosclerotic-plaques-of-patients-with-primary-antiphospholipid-syndrome
#13
Marisa Benagiano, Maria Gerosa, Jacopo Romagnoli, Michael Mahler, Maria O Borghi, Alessia Grassi, Chiara Della Bella, Giacomo Emmi, Amedeo Amedei, Elena Silvestri, Lorenzo Emmi, Domenico Prisco, Pier Luigi Meroni, Mario M D'Elios
Antiphospholipid syndrome (APS) is characterized by recurrent arterial/venous thrombosis and miscarriages in the persistent presence of autoantibodies against phospholipid-binding proteins (aPLs), such as β2 glycoprotein I (β2GPI). In addition to the aPL thrombophilic effect, arterial thrombosis was related to accelerated atherosclerosis in animal models; however, contrasting findings were reported in primary APS patients with regard to the increased number of plaques or abnormal arterial wall thickness. We investigated the cytokine production induced by β2GPI in activated T cells that infiltrate in vivo atherosclerotic lesions of primary APS patients with atherothrombosis...
February 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28193677/sex-differences-in-the-clinical-impact-of-high-platelet-reactivity-after-percutaneous-coronary-intervention-with-drug-eluting-stents-results-from-the-adapt-des-study-assessment-of-dual-antiplatelet-therapy-with-drug-eluting-stents
#14
Jennifer Yu, Roxana Mehran, Usman Baber, Sze-Yuan Ooi, Bernhard Witzenbichler, Giora Weisz, Michael J Rinaldi, Franz-Josef Neumann, D Christopher Metzger, Timothy D Henry, David A Cox, Peter L Duffy, Ernest L Mazzaferri, Bruce R Brodie, Thomas D Stuckey, Akiko Maehara, Ke Xu, Ori Ben-Yehuda, Ajay J Kirtane, Gregg W Stone
BACKGROUND: Sex differences in the outcomes after percutaneous coronary intervention with drug-eluting stents and in the response to clopidogrel therapy have been reported; however, the differential risk of high platelet reactivity (HPR) on clopidogrel in women versus men is unknown. METHODS AND RESULTS: We compared 8448 patients enrolled in the ADAPT-DES study (Assessment of Dual Antiplatelet Therapy With Drug-Eluting Stents) according to sex and the presence/absence of HPR on clopidogrel (defined as P2Y12 reactivity units >208)...
February 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28188927/xanthohumol-isolated-from-humulus-lupulus-prevents-thrombosis-without-increased-bleeding-risk-by-inhibiting-platelet-activation-and-mtdna-release
#15
Guang Xin, Zeliang Wei, Chengjie Ji, Huajie Zheng, Jun Gu, Limei Ma, Wenfang Huang, Susan L Morris-Natschke, Jwu-Lai Yeh, Rui Zhang, Chaoyi Qin, Li Wen, Zhihua Xing, Yu Cao, Qing Xia, Ke Li, Hai Niu, Kuo-Hsiung Lee, Wen Huang
AIM: As the global population has reached 7 billion and the baby boom generation reaches old age, thrombosis has become the major contributor to the global disease burden. It has been reported that, in moderate doses, beer may protect against thrombosis. Xanthohumol (XN), an antioxidant, is found at high concentrations in hop cones (Humulus lupulus L.) and is a common ingredient of beer. Here, the aim of the present work was to investigate the effects of XN on antithrombotic and antiplatelet activities, and study its mechanism...
February 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28187092/incidence-of-venous-thromboembolism-by-type-of-gynecologic-malignancy-and-surgical-modality-in-the-national-surgical-quality-improvement-program
#16
Ashley Graul, Nawar Latif, Xiaochen Zhang, Lorraine T Dean, Mark Morgan, Robert Giuntoli, Robert Burger, Sarah Kim, Emily Ko
BACKGROUND: Women with gynecologic cancer are at higher risk of venous thromboembolism (VTE) due to malignancy, pelvic surgery, increased age, and frequently comorbidities. The rate of VTE among different gynecologic cancers and relative to benign gynecologic surgeries has not been reported in a nationally representative cohort. METHODS: Using the American College of Surgeons National Surgical Quality Improvement Program database, gynecologic surgeries were identified retrospectively from 2006 to 2012...
March 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28185212/economic-evaluations-of-new-oral-anticoagulants-for-the-prevention-of-venous-thromboembolism-after-total-hip-or-knee-replacement-a-systematic-review
#17
REVIEW
James Brockbank, Sorrel Wolowacz
BACKGROUND: Total hip replacement (THR) and total knee replacement (TKR) surgeries are being performed with increasing regularity and are associated with a high risk of developing a venous thromboembolism (VTE). New oral anticoagulants (NOACs) may be more effective at preventing VTEs but are associated with more bleeding events versus traditional anticoagulants. OBJECTIVE: The objective of this systematic review was to identify published economic analyses of NOACs for primary VTE prophylaxis following THR and TKR surgeries, and to summarise the modelling techniques used and the cost-effectiveness results...
February 10, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28182703/nephropathy-in-pparg-null-mice-highlights-ppar%C3%AE-systemic-activities-in-metabolism-and-in-the-immune-system
#18
Barbara Toffoli, Federica Gilardi, Carine Winkler, Magnus Soderberg, Laura Kowalczuk, Yvan Arsenijevic, Krister Bamberg, Olivier Bonny, Béatrice Desvergne
Peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-dependent transcription factor involved in many aspects of metabolism, immune response, and development. Total-body deletion of the two Pparg alleles provoked generalized lipoatrophy along with severe type 2 diabetes. Herein, we explore the appearance and development of structural and functional alterations of the kidney, comparing Pparg null-mice to their littermate controls (carrying Pparg floxed alleles). We show that renal hypertrophy and functional alterations with increased glucosuria and albuminuria are already present in 3 weeks-old Pparg null-mice...
2017: PloS One
https://www.readbyqxmd.com/read/28179567/serpin1-and-wscp-differentially-regulate-the-activity-of-the-cysteine-protease-rd21-during-plant-development-in-arabidopsis-thaliana
#19
Sachin Rustgi, Edouard Boex-Fontvieille, Christiane Reinbothe, Diter von Wettstein, Steffen Reinbothe
Proteolytic enzymes (proteases) participate in a vast range of physiological processes, ranging from nutrient digestion to blood coagulation, thrombosis, and beyond. In plants, proteases are implicated in host recognition and pathogen infection, induced defense (immunity), and the deterrence of insect pests. Because proteases irreversibly cleave peptide bonds of protein substrates, their activity must be tightly controlled in time and space. Here, we report an example of how nature evolved alternative mechanisms to fine-tune the activity of a cysteine protease dubbed RD21 (RESPONSIVE TO DESICCATION-21)...
February 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28179291/synergistic-inhibitory-effect-of-traditional-chinese-medicine-astragaloside-iv-and-curcumin-on-tumor-growth-and-angiogenesis-in-an-orthotopic-nude-mouse-model-of-human-hepatocellular-carcinoma
#20
Shuo Zhang, Decai Tang, Wenhua Zang, Gang Yin, Jianguo Dai, Y U Sun, Zhijian Yang, Robert M Hoffman, Xiuxia Guo
AIM: The aim of the present study was to investigate the efficacy of the traditional Chinese medicine (TCM), astragaloside IV (AS-IV) and curcumin on tumor growth and angiogenesis in an orthotopic nude-mouse model of human hepatocellular carcinoma (HCC). We have previously shown the usefulness of orthotopic models of human cancer for evaluation of the efficacy of TCM. MATERIALS AND METHODS: Nude mice with orthotopic HepG2 HCC were treated with vehicle control (0...
2017: Anticancer Research
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