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https://www.readbyqxmd.com/read/29667548/flavonoids-and-platelet-derived-thrombotic-disorders
#1
Jose J Lopez, Mohammed El Haouari, Isaac Jardin, Nieves Alonso, Sergio Regodon, Raquel Diez Bello, Pedro Cosme Redondo, Juan A Rosado
Thrombotic disorders are characterized by an increase in the probability of the formation of unnecessary thrombi that might be due to the activation of the coagulation cascade or the circulating platelets. Platelets or thrombocytes play an essential role in hemostasis but abnormal platelet function leads to the development of a number of cardiovascular complications, including thrombotic disorders. Under pathological conditions, platelets are associated with the development of different thrombotic disorders, including atherosclerosis, arterial thrombosis and stroke, deep venous thrombosis and pulmonary embolism; therefore, platelets are the target of a number of anti-thrombotic strategies...
April 17, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29666027/puerperium-related-stroke-due-to-nonbacterial-thrombotic-endocarditis
#2
Manuel Chacón-Díaz, Roberto Ruiz-Cordero, Helard Miranda-Aguilar, Josias Rios-Ortega, Fernando Córdova-Gómez, Julio Morón-Castro
No abstract text is available yet for this article.
April 14, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29665524/primary-hyperfibrinolysis-facts-and-fancies
#3
REVIEW
Massimo Franchini, Pier Mannuccio Mannucci
Fibrinolysis is a complex process that controls both hemostasis and thrombosis. The regulation of the fibrinolytic system is mediated through a wide array of cofactors and inhibitors that maintain the hemostatic balance in a delicate equilibrium. As a consequence, disturbances in the fibrinolysis pathway are associated with various disease states, ranging from thrombotic to hemorrhagic clinical phenotypes. In particular, a number of inherited and acquired disorders are associated with an enhanced fibrinolysis leading to a bleeding tendency that in some cases may be life-threatening...
April 12, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29664760/effect-of-routine-clopidogrel-use-on-bleeding-complications-after-endobronchial-ultrasound-guided-fine-needle-aspiration
#4
Tracey N Webb, Eric Flenaugh, Ralitza Martin, Christopher Parks, Rabih I Bechara
BACKGROUND: Endobronchial ultrasonography has proven to be highly sensitive and specific in the diagnoses of patients with mediastinal and hilar adenopathy. Many of these patients are on a combination of clopidogrel (a compound that inhibits adenosine diphosphate-induced platelet aggregation) and aspirin due to neurological and/or cardiac-related comorbidities, and stopping anticoagulation may place these patients at high risk for potential complications. Our group has previously showed that thoracentesis with an 8-french catheter is safe in patients receiving clopidogrel and aspirin with low risk of complications...
April 16, 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29663354/the-management-of-livedoid-vasculopathy-focused-on-direct-oral-anticoagulants-doacs-four-case-reports-successfully-treated-with-rivaroxaban
#5
Gabriela Franco Marques, Paulo Ricardo Criado, Thâmara Cristiane Alves Batista Morita, María Salomé Cajas García
Livedoid vasculopathy (LV) is a thrombotic skin disease characterized by episodic painful ulcerations of the distal aspects of the legs. Its healing process typically leaves small porcelain-white scars called atrophie blanche as a result of the occlusion of cutaneous microcirculation. The main goals of the treatment are pain management and the prevention of ulceration and of progressive scarring in the malleolar area. The therapeutic management is still a challenge, however, and most treatments were based on anecdotal off-label protocols...
April 16, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29662292/post-polypectomy-bleeding-and-thromboembolism-risks-associated-with-warfarin-vs-direct-oral-anticoagulants
#6
Naohiro Yanagisawa, Naoyoshi Nagata, Kazuhiro Watanabe, Tatsuhiro Iida, Mariko Hamada, Sakurako Kobayashi, Takuro Shimbo, Junichi Akiyama, Naomi Uemura
AIM: To verify the validity of the endoscopy guidelines for patients taking warfarin or direct oral anticoagulants (DOAC). METHODS: We collected data from 218 patients receiving oral anticoagulants (73 DOAC users, 145 warfarin users) and 218 patients not receiving any antithrombotics (age- and sex-matched controls) who underwent polypectomy. (1) We evaluated post-polypectomy bleeding (PPB) risk in patients receiving warfarin or DOAC compared with controls; (2) we assessed the risks of PPB and thromboembolism between three AC management methods: Discontinuing AC with heparin bridge (HPB) (endoscopy guideline recommendation), continuing AC, and discontinuing AC without HPB...
April 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29662195/ngr-asn-gly-arg-targeted-delivery-of-coagulase-to-tumor-vasculature-arrests-cancer-cell-growth
#7
Khaled Seidi, Rana Jahanban-Esfahlan, Hassan Monhemi, Peyman Zare, Babak Minofar, Amir Daei Farshchi Adli, Davoud Farajzadeh, Ramezan Behzadi, Mehran Mesgari Abbasi, Heidi A Neubauer, Richard Moriggl, Nosratollah Zarghami, Tahereh Javaheri
Induction of selective thrombosis and infarction in tumor-feeding vessels represents an attractive strategy to combat cancer. Here we took advantage of the unique coagulation properties of staphylocoagulase and genetically engineered it to generate a new fusion protein with novel anti-cancer properties. This novel bi-functional protein consists of truncated coagulase (tCoa) and an NGR (GNGRAHA) motif that recognizes CD13 and αv β3 integrin receptors, targeting it to tumor endothelial cells. Herein, we report that tCoa coupled by its C-terminus to an NGR sequence retained its normal binding activity with prothrombin and av β3 integrins, as confirmed in silico and in vitro...
April 17, 2018: Oncogene
https://www.readbyqxmd.com/read/29660502/the-place-of-fibrinogen-concentrates-in-the-management-of-perioperative-bleeding-a-position-paper-from-the-francophone-working-group-on-perioperative-hemostasis-gihp
#8
REVIEW
Charles Marc Samama, Brigitte Ickx, Yves Ozier, Annick Steib, Sophie Susen, Anne Godier
The consumption of fibrinogen concentrates has been increasing steadily for several years in surgery, trauma and obstetrics. However, data from the literature are conflicting. The French Working Group on Perioperative Haemostasis (GIHP) proposes a position paper based on a narrative review of the literature, and addresses the following questions: - What is the exact role of fibrinogen in haemostasis? - Which rational support for the use of perioperative fibrinogen? - Which thrombotic risk? - What are the most recent professional recommendations on the use of fibrinogen concentrates? Then, evidence-based recommendations are proposed: 1 - It is suggested not to administer prophylactic FC to prevent haemorrhage...
April 13, 2018: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29659973/the-diagnostic-challenge-of-acquired-thrombotic-thrombocytopenic-purpura-in-children-case-report-and-review-of-the-literature
#9
Elise Schapkaitz, Tanya Marié Schickerling
Acquired thrombotic thrombocytopenic purpura (TTP) is a rare disease in children. Despite advances in diagnosis and treatment, acquired TTP remains a challenging disease due to the lack of a simple diagnostic test and the variable response to plasma exchange. Herein, we describe a case of a 5-year-old of black ethnicity boy who presented with a sudden onset of fatigue and body aches. Laboratory investigations revealed a thrombotic microangiopathic manifestation. TTP was diagnosed, and plasma exchange and corticosteroids were initiated, with an excellent response...
April 12, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29659727/nitrite-circumvents-platelet-resistance-to-nitric-oxide-in-patients-with-heart-failure-preserved-ejection-fraction-and-chronic-atrial-fibrillation
#10
Alessandra Borgognone, Eduard Shantsila, Sophie M Worrall, Eakkapote Prompunt, Thomas Loka, Brodie L Loudon, Myriam Chimen, G Ed Rainger, Janet M Lord, Ashley Turner, Peter Nightingale, Martin Feelisch, Paulus Kirchhof, Gregory Y H Lip, Steve P Watson, Michael P Frenneaux, Melanie Madhani
Aims: Heart failure (HF) is a pro-thrombotic state. Both platelet and vascular responses to nitric oxide (NO) donors are impaired in HF patients with reduced ejection fraction (HFrEF) compared to healthy volunteers (HV) due to scavenging of NO, and possibly also reduced activity of the principal NO sensor, soluble guanylate cyclase (sGC), limiting the therapeutic potential of NO donors as anti-aggregatory agents. Previous studies have shown that nitrite inhibits platelet activation presumptively after its reduction to NO, but the mechanism(s) involved remain poorly characterized...
April 12, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29659553/therapeutic-potential-of-annexin-a1-in-ischemia-reperfusion-injury
#11
REVIEW
Junaid Ansari, Gaganpreet Kaur, Felicity N E Gavins
Cardiovascular disease (CVD) continues to be the leading cause of death in the world. Increased inflammation and an enhanced thrombotic milieu represent two major complications of CVD, which can culminate into an ischemic event. Treatment for these life-threatening complications remains reperfusion and restoration of blood flow. However, reperfusion strategies may result in ischemia-reperfusion injury (I/RI) secondary to various cardiovascular pathologies, including myocardial infarction and stroke, by furthering the inflammatory and thrombotic responses and delivering inflammatory mediators to the affected tissue...
April 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29659362/-recurrent-atypical-hemolytic-uremic-syndrome-after-renal-transplantation-treatment-with-eculizumab
#12
Ana B Latzke, Pehuén Fernández, Carlos Chiurchiu, Daniela Sarmantano, Javier De Arteaga, Walter Douthat, Jorge De la Fuente
Atypical hemolytic uremic syndrome (aHUS) is a rare entity. It is characterized by a thrombotic microangiopathy (nonimmune hemolytic anemia, thrombocytopenia, and acute renal failure), with a typical histopathology of thickening of capillary and arteriolar walls and an obstructive thrombosis of the vascular lumen. The syndrome is produced by a genetic or acquired deregulation of the alternative pathway of the complement system, with high rates of end stage renal disease, post-transplant recurrence, and high mortality...
2018: Medicina
https://www.readbyqxmd.com/read/29658397/inflammation-coagulation-response-and-thrombotic-effects-induced-by-silica-nanoparticles-in-zebrafish-embryos
#13
Junchao Duan, Shuang Liang, Yang Yu, Yang Li, Lijing Wang, Zehao Wu, Yueyue Chen, Mark R Miller, Zhiwei Sun
Nowadays, nanotechnology environmental health and safety (nanoEHS) is gaining attention. We previously found that silica nanoparticles (SiNPs) could induce vascular endothelial damage. However, the subsequent toxicologic response to SiNPs-induced endothelial damage was still largely unknown. In this study, we explored the inflammation-coagulation response and thrombotic effects of SiNPs in endothelial cells and zebrafish embryos. For in vitro study, swollen mitochondria and autophagosome were observed in ultrastructural analysis...
April 14, 2018: Nanotoxicology
https://www.readbyqxmd.com/read/29658384/complications-of-adult-onset-still-s-disease-and-their-management
#14
Stéphane Mitrovic, Bruno Fautrel
Adult-onset Still's disease (AOSD) is a rare systemic auto-inflammatory disorder in which management and treatment have considerably progressed over the past decade. Despite wide use of interleukin (IL)-1 or IL-6 inhibitors, serious complications remain possible. Areas covered: A comprehensive literature search in MEDLINE via Pubmed was performed to review AOSD's severe and sometimes life-threatening complications: reactive hemophagocytic lymphohystiocytosis, coagulation disorders, fulminant hepatitis, cardiac or pulmonary complications and amyloid A amyloidosis...
April 16, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29657612/deal-a-death-blow-hcc-in-cirrhotics-thrombotic-complications-their-frequency-characteristics-and-risk-factors
#15
Khalid Mahmood, Iftikhar Haider Naqvi, Aamer Mahmood, Syed Muhammad, Noor Muhammad
Introduction: The hepatocellular carcinoma (HCC), being the commonest primary cancer, holds the sixth slot in the list of common cancers worldwide. Thrombotic complications in the form of portal vein tumour thrombosis (PVTT) and bland portal vein thrombosis with HCC are common with a bad prognosis. Aim: The study aims to determine the demographic, clinical, and biochemical parameters of HCC patients. The study also compares the clinical and biochemical parameters among patients having HCC with and without thrombotic complication...
2018: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/29657197/adamts-13-level-in-children-with-severe-diarrhea-associated-hemolytic-uremic-syndrome-unmasking-new-association
#16
Naglaa A Khalifa, Heba H Gawish, Noora A Khalifa, Doaa M Tawfeek, Saed M Morsy
Severe deficiency of ADAMTS-13 leads to thrombotic thrombocytopenic purpura. Few studies have reported reduced activity of ADAMTS-13 in patients with atypical and typical hemolytic uremic syndrome (HUS). We hypothesized that ADAMTS-13 deficiency might play a role in the pathogenesis of severe HUS. This study aimed to evaluate the ADAMTS-13 level in severe typical HUS. This prospective case-control study was carried out in the Pediatric Nephrology Unit and Clinical Pathology Department, Faculty of Medicine, Zagazig University from February 2013 to February 2014...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29657193/atypical-hemolytic-uremic-syndrome-laboratory-characteristics-complement-amplifying-conditions-renal-biopsy-and-genetic-mutations
#17
REVIEW
Mohammad A Hossain, Anmol Cheema, Sheila Kalathil, Ravneet Bajwa, Eric J Costanzo, James Cosentino, Jennifer Cheng, Tushar Vachharajani, Arif Asif
Atypical hemolytic uremic syndrome (aHUS) is characterized by microangiopathic hemolytic anemia, consumptive thrombocytopenia, and widespread damage to multiple organs including the kidney. The syndrome has a high mortality necessitating the need for an early diagnosis to limit target organ damage. Because thrombotic microangiopathies present with similar clinical picture, accurate diagnosis of aHUS continues to pose a diagnostic challenge. This article focuses on the role of four distinct aspects of aHUS that assist clinicians in making an accurate diagnosis of aHUS...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29656938/vitamin-d-deficiency-and-periprocedural-myocardial-infarction-in-patients-undergoing-percutaneous-coronary-interventions
#18
Monica Verdoia, Claudia Ceccon, Matteo Nardin, Harry Suryapranata, Giuseppe De Luca
Vitamin D deficiency has been implicated in the progression of atherosclerosis and acute thrombotic events. We aimed at evaluating the impact of vitamin D deficiency on periprocedural myocardial infarction (PMI) in patients undergoing percutaneous coronary interventions (PCI). We included 934 patients undergoing non-urgent PCI. Assessment of myocardial biomarkers was performed from 6 to 48 h after PCI. PMI was defined as Creatine Kinase-MB increase by 3 times the Upper Limit Normal or by 50% of an elevated baseline value, periprocedural myocardial damage as Troponin I increase by 3 × ULN or 50% of baseline...
March 4, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29655806/is-there-a-role-for-intervention-radiology-for-the-treatment-of-lower-limb-deep-vein-thrombosis-in-the-era-of-direct-oral-anticoagulants-a-comprehensive-review
#19
REVIEW
Marco Marietta, Elisa Romagnoli, Benilde Cosmi, Valeria Coluccio, Mario Luppi
Despite recent advances in the treatment of Deep Vein Thrombosis (DVT) provided by Direct Oral Anticoagulants (DOAC), a substantial proportion of lower limb DVT patients will develop some degree of post-thrombotic syndrome (PTS) within 2 years. Systemic thrombolysis, although effective in reducing the risk of PTS and leg ulceration, is associated with a high risk of major bleeding, making it unsuitable for the vast majority of patients. A local approach, aimed at delivering the fibrinolytic drug directly into, or near to, the thrombus surface, is attractive because of the possibility of lowering of the administered drug dose, thus reducing the bleeding risks...
April 11, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29655662/evaluation-of-low-intensity-anti-coagulation-with-a-fully-magnetically-levitated-centrifugal-flow-circulatory-pump-the-magentum-1-study
#20
Ivan Netuka, Peter Ivák, Zuzana Tučanová, Stanislav Gregor, Ondrej Szárszoi, Poornima Sood, Daniel Crandall, Jessica Rimsans, Jean Marie Connors, Mandeep R Mehra
BACKGROUND: The HeartMate 3 left ventricular assist system is engineered to avoid pump thrombosis, yet bleeding complications persist. We investigated the safety of low-intensity anti-coagulation in patients with the HeartMate 3. METHODS: The Minimal AnticoaGulation EvaluatioNTo aUgment heMocompatibility (MAGENTUM 1) pilot study is a prospective, single-arm study of low-intensity warfarin anti-coagulation in patients implanted with the HeartMate 3 pump. After standard warfarin anti-coagulation (international normalized ratio [INR] 2...
March 27, 2018: Journal of Heart and Lung Transplantation
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