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Thrombosis Research

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https://www.readbyqxmd.com/read/28624155/current-understanding-of-the-pathophysiology-of-chronic-thromboembolic-pulmonary-hypertension
#1
Smriti Sharma, Irene M Lang
Chronic thromboembolic pulmonary hypertension (CTEPH) is a unique form of pulmonary hypertension arising from fibrotic obliteration of major pulmonary arteries. Pro-thrombotic states, large clot burden and impaired dissolution are believed to contribute to the occurrence and progression of thrombosis after an acute pulmonary embolic event. Recent data utilizing several models have facilitated the understanding of clot resolution. This review summarizes current knowledge on pathophysiological mechanisms of major vessel occlusion in CTEPH...
June 12, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28623810/platelet-granule-release-is-associated-with-reactive-oxygen-species-generation-during-platelet-storage-a-direct-link-between-platelet-pro-inflammatory-and-oxidation-states
#2
Mehran Ghasemzadeh, Ehteramolsadat Hosseini
BACKGROUND: Upon platelet stimulation with agonists, reactive oxygen species (ROS) generation enhances platelet activation and granule release. Whether ROS generation during platelet storage could be directly correlated with the expression of proinflammatory molecules and granule release has been investigated in this study. MATERIAL AND METHOD: PRP-platelet concentrates were subjected to flowcytometry analysis to assess the expression of platelet activation marker, P-selectin and CD40L during storage...
June 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28628799/a-novel-2-stage-approach-that-detects-complement-activation-in-patients-with-antiphospholipid-antibody-syndrome
#3
Jacob H Rand, Xiao-Xuan Wu, Lucia R Wolgast, Victor Lei, Edward M Conway
INTRODUCTION: The antiphospholipid syndrome (APS) is marked by autoantibodies that recognize anionic phospholipids in a cofactor-dependent manner. A role for complement has been implicated in the pathophysiology, however, elevations of complement activation markers have not been consistently demonstrated in clinical studies. We therefore designed a proof-of-principle study to determine whether complement activation might be detectable in APS by first exposing plasmas to phospholipid vesicles...
June 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28624718/microparticles-in-acute-coronary-syndrome
#4
Chrysostomos A Mavroudis, Despina Eleftheriou, Ying Hong, Bikash Majumder, Sudheer Koganti, Ray Sapsford, Janet North, Mark Lowdell, Nigel Klein, Paul Brogan, Roby D Rakhit
BACKGROUND: Emerging evidence supports the role of cell-derived microparticles (MPs) in the pathophysiology of acute coronary syndrome (ACS). OBJECTIVES: To explore the relationship between coronary and systemic MP levels, investigate the correlation between MPs, inflammatory markers and Troponin T in patients with ACS. METHODS: Thirty seven patients with ACS scheduled for percutaneous coronary interventions (PCI) were studied. Eleven patients with stable angina (SA) were included as a control group...
June 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28624717/management-of-venous-thromboembolism-in-patients-with-glioma
#5
Mosaad Al Megren, Carine De Wit, Mohammad Al Qahtani, Grégoire Le Gal, Marc Carrier
BACKGROUND: Venous thromboembolism (VTE) is a common complication among patients with glioma. However, data on the safety of therapeutic doses of anticoagulation is scarce in this patient population. OBJECTIVES: The purpose of this study is to evaluate the risk of intracranial hemorrhage (ICH) in glioma patients receiving therapeutic anticoagulation for VTE treatment. PATIENTS AND METHODS: We conducted a case-control study including glioma patients with and without acute VTE from Jan 2010 to March 2015...
June 8, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28605658/acquired-thrombotic-thrombocytopenic-purpura-in-pregnancy-the-role-of-placental-and-breast-milk-mediated-transfer-of-adamts13-autoantibodies
#6
LETTER
Amihai Rottenstreich, Yosef Kalish, Ariella Tvito, Hagit Hauschner, Ariela Arad
No abstract text is available yet for this article.
June 8, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28624719/reversal-of-rivaroxaban-using-prothromplex-total-a-4-factor-prothrombin-complex
#7
LETTER
Hartirathpal Kaur, Shu Hui Yeang, Edmund See, Dixon Grant, Chuen Wen Tan, Wan Hui Wong, Daryl Tan, Heng Joo Ng, Lai Heng Lee
No abstract text is available yet for this article.
June 7, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28605660/elevated-annexin-a5-plasma-levels-in-term-pregnancies-of-m2-anxa5-carriers
#8
LETTER
Kai-Cheen Ang, Sushilnathan Kathirgamanathan, Ewe Seng Ch'ng, Wan Zaidah Abdullah, Narazah Mohd Yusoff, Charlotte Marie Jahnke, Ralf Schmitz, Nadja Bogdanova, Peter Wieacker, Thean Hock Tang, Arseni Markoff
No abstract text is available yet for this article.
June 7, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28601642/comparison-of-citrated-and-fresh-whole-blood-for-viscoelastic-coagulation-testing-during-elective-neurosurgery
#9
E Silverberg, F Tornqvist, T Kander, J Bengzon, C Solomon, J Bonnevier, U Schött
BACKGROUND: Previous viscoelastic haemostatic tests studies have often indicated a hypercoagulative test signal with citrated blood, which could influence clinical decision makings. PURPOSE: The aim of this study was to compare fresh and citrated whole blood using two non-automated viscoelastic ROTEM and Sonoclot tests. Our hypothesis was that citrated blood would demonstrate a hypercoagulative response in this setting, not tested before. METHODS: Perioperative viscoelastic coagulation changes were evaluated with a ROTEM and Sonoclot in 38 patients undergoing elective brain tumor surgery...
June 3, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28609704/sphingosine-1-phosphate-s1p-suppresses-the-collagen-induced-activation-of-human-platelets-via-s1p4-receptor
#10
Takashi Onuma, Kumiko Tanabe, Yuko Kito, Masanori Tsujimoto, Kodai Uematsu, Yukiko Enomoto, Rie Matsushima-Nishiwaki, Tomoaki Doi, Kiyoshi Nagase, Shigeru Akamatsu, Haruhiko Tokuda, Shinji Ogura, Toru Iwama, Osamu Kozawa, Hiroki Iida
Sphingosine 1-phosphate (S1P) is as an extracellular factor that acts as a potent lipid mediator by binding to specific receptors, S1P receptors (S1PRs). However, the precise role of S1P in human platelets that express S1PRs has not yet been fully clarified. We previously reported that heat shock protein 27 (HSP27) is released from human platelets accompanied by its phosphorylation stimulated by collagen. In the present study, we investigated the effect of S1P on the collagen-induced platelet activation. S1P pretreatment markedly attenuated the collagen-induced aggregation...
June 2, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28599849/the-amyloid-beta-precursor-protein-the-unappreciated-cerebral-anticoagulant
#11
EDITORIAL
Alvin H Schmaier
No abstract text is available yet for this article.
June 2, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28599169/modifiers-of-clinical-phenotype-in-severe-congenital-hemophilia
#12
Massimo Franchini, Pier Mannuccio Mannucci
Patients with inherited hemophilia A and B usually exhibit a bleeding tendency of a severity proportional to the degree of plasmatic deficiency of the coagulant activity of factor VIII (FVIII:C) and factor IX (FIX:C). Although patients with severe hemophilia (i.e., with FVIII:C and FIX:C levels <1IU/dL) are generally those with the most severe bleeding phenotype, it is common experience that a variable proportion of them experiences a milder bleeding tendency. In this review, we summarize the current knowledge on the possible mechanisms at the basis of the phenotypic heterogeneity of severe hemophilia, focusing in particular on the role of FVIII/FIX gene mutations and thrombophilic polymorphisms...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28595772/prevention-of-early-complications-and-late-consequences-after-acute-pulmonary-embolism-focus-on-reperfusion-techniques
#13
Stavros V Konstantinides, Stefano Barco
Pulmonary embolism (PE) is a major cause of acute cardiovascular mortality and long-term morbidity. Right ventricular (RV) dysfunction is the key determinant of prognosis in the acute phase of PE, and residual RV dysfunction is associated with the development of post-PE functional impairment, chronic thromboembolic disease, and higher costs of treatment over the long term. Patients with clinically overt RV failure, i.e. hemodynamic collapse at presentation (high-risk PE), necessitate immediate thrombolytic treatment to relieve the obstruction in the pulmonary circulation; surgical or catheter-directed removal of the thrombus can be an alternative option...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28587726/occult-cancer-detection-in-patients-with-hemostatic-disorder-and-venous-thromboembolism
#14
Holleh Husseinzadeh, Marc Carrier
There are physiologic ties between Von Willebrand Factor (VWF) and circulating tumor cells. VWF appears to play a role in tumor biology, but it is unclear whether cancer behavior differs in Von Willebrand Disease. In patients presenting with venous thromboembolism (VTE), occult cancer is frequently considered as an underlying cause. The prevalence of occult cancer after provoked VTE is low (3%); therefore, cancer screening in these patients is not routinely recommended. In those with unprovoked VTE, occult cancer is more prevalent, estimated between 4 and 10%...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28586697/the-diagnostic-management-of-upper-extremity-deep-vein-thrombosis-a-review-of-the-literature
#15
REVIEW
Noémie Kraaijpoel, Nick van Es, Ettore Porreca, Harry R Büller, Marcello Di Nisio
Upper extremity deep vein thrombosis (UEDVT) accounts for 4% to 10% of all cases of deep vein thrombosis. UEDVT may present with localized pain, erythema, and swelling of the arm, but may also be detected incidentally by diagnostic imaging tests performed for other reasons. Prompt and accurate diagnosis is crucial to prevent pulmonary embolism and long-term complications as the post-thrombotic syndrome of the arm. Unlike the diagnostic management of deep vein thrombosis (DVT) of the lower extremities, which is well established, the work-up of patients with clinically suspected UEDVT remains uncertain with limited evidence from studies of small size and poor methodological quality...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28586696/precision-and-accuracy-of-the-new-xprecia-stride-mobile-coagulometer
#16
LETTER
Francesco Piacenza, Roberta Galeazzi, Maurizio Cardelli, Fausto Moroni, Mauro Provinciali, Elisa Pierpaoli, Simona Giovagnetti, Stefania Appolloni, Francesca Marchegiani
INTRODUCTION: Oral anticoagulation therapy (OAT) with coumarins (vitamin K antagonist) is the most used against thromboembolism. Prothrombin time (PT) International Normalized Ratio (INR) monitoring is fundamental to establish coumarins dosage and prevent bleeding complications or thrombotic events. In this contest, the method and apparatus used for providing the INR measurements are crucial. Several studies have been published regarding the precision and accuracy of mobile coagulometers with different conclusions...
May 30, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28578247/microvascular-thrombosis-in-sepsis-an-autopsy-study
#17
LETTER
Vanessa M Tani, Guilherme Rossi Assis-Mendonça, Thamires Branco da Silva, Fabio Rogerio, Erich V De Paula
No abstract text is available yet for this article.
May 29, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28582640/the-causes-of-thrombocytopenia-after-transcatheter-aortic-valve-implantation
#18
Maciej Mitrosz, Remigiusz Kazimierczyk, Bozena Sobkowicz, Ewa Waszkiewicz, Pawel Kralisz, Marek Frank, Jaroslaw Piszcz, Marzenna Galar, Slawomir Dobrzycki, Wlodzimierz J Musial, Tomasz Hirnle, Karol A Kaminski, Agnieszka M Tycinska
INTRODUCTION: Even though thrombocytopenia following transcatheter aortic valve implantation (TAVI) has been described, further investigation of this phenomenon is needed. AIMS: To determine which factors may explain the fall in platelet count that occurs after implantation of a TAVI device, including markers of platelet and blood coagulation activation. MATERIAL AND METHODS: 32 patients without previous indications for dual antiplatelet therapy (mean age 78...
May 26, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28582638/association-of-cd147-genetic-polymorphisms-with-carotid-atherosclerotic-plaques-in-a-han-chinese-population-with-cerebral-infarction
#19
Tongtian Ni, Min Chen, Kang Yang, Jianwei Shao, Yi Fu, Weijun Zhou
INTRODUCTION: Given the important role of CD147 in the development of atherosclerosis, we speculated that CD147 genetic polymorphisms might influence the formation of carotid atherosclerotic plaques. The study was to investigate the association between CD147 gene polymorphisms and susceptibility to carotid atherosclerotic plaques in individuals with cerebral infarction (CI). METHODS: Eight SNPs in the regulatory and coding regions of the CD147 gene were examined using polymerase chain reaction-ligase detection reaction (PCR-LDR) in DNA samples from 732 Chinese patients with CI, divided into a carotid plaque group (n=475) and a non-carotid plaque group (n=257)...
May 26, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28582637/different-time-course-of-plasma-lactate-troponin-i-and-nt-probnp-concentrations-in-patients-with-acute-pulmonary-embolism
#20
LETTER
Giovanni Liedl, Peiman Nazerian, Giuseppe Pepe, Cosimo Caviglioli, Stefano Grifoni, Simone Vanni
No abstract text is available yet for this article.
May 26, 2017: Thrombosis Research
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