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https://www.readbyqxmd.com/read/28820747/involvement-of-hyperglycemia-in-the-development-of-platelet-procoagulant-response-the-role-of-aldose-reductase-and-platelet-swelling
#1
Tomasz Rusak, Tomasz Misztal, Malgorzata Rusak, Justyna Branska-Januszewska, Marian Tomasiak
: Rise in mean platelet volume (MPV) has been demonstrated to be associated with increased platelet reactivity. In diabetes patients, augmented MPV was proposed to contribute to increased risk of thrombotic complications. Therefore, the aim of this study was to investigate whether under hyperglycemic conditions, aldose reductase (AR)-mediated sorbitol formation and associated rise in cell volume, which subsequently results in platelet hyperactivation. Platelets were obtained from 30 healthy volunteers and 13 patients with diabetes...
September 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28820484/platelet-aggregometry-testing-molecular-mechanisms-techniques-and-clinical-implications
#2
REVIEW
Katalin Koltai, Gabor Kesmarky, Gergely Feher, Antal Tibold, Kalman Toth
Platelets play a fundamental role in normal hemostasis, while their inherited or acquired dysfunctions are involved in a variety of bleeding disorders or thrombotic events. Several laboratory methodologies or point-of-care testing methods are currently available for clinical and experimental settings. These methods describe different aspects of platelet function based on platelet aggregation, platelet adhesion, the viscoelastic properties during clot formation, the evaluation of thromboxane metabolism or certain flow cytometry techniques...
August 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28820405/antiphospholipid-syndrome-and-monocytes-new-aspects
#3
A Blbulyan, A Martirosyan, M Petrek, Z Navratilova, G Manukyan
After discovery of antiphospholipid syndrome (APS) our understanding of molecular mechanisms of living matter has become more sophisticated and on this way monocytes has become crucial player, particularly in pathogenesis of APS. Thrombotic and non-thrombotic complications of APS could be explained by monocytes' activation too. But mechanisms underlying their activation are poorly investigated. So we aimed to determine transcriptional activity of monocytes after exposing them to low concentrations of lipopolysaccharide (LPS) and LPS+ATP using comparative of RT-PCR...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819709/use-of-direct-oral-anticoagulants-in-patients-on-immunomodulatory-agents
#4
L Man, A Morris, J Brown, S Palkimas, K Davidson
Immunomodulatory agents (IMiDs) are used to treat multiple hematologic malignancies. Their use is also associated with increased risk of venous thromboembolism (VTE). Direct oral anticoagulants (DOACs) have been increasingly utilized but due to their relative novelty, their role in malignancy has only been recently investigated. The objective of this study was to assess the safety and efficacy of DOACs in patients receiving IMiDs. This was a retrospective study of patients at our institution treated with an IMiD and concomitant warfarin or DOAC between January 1, 2010 and December 31, 2015...
August 17, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28819334/cytokine-signature-in-end-stage-renal-disease-patients-on-hemodialysis
#5
Danyelle Romana Alves Rios, Melina Barros Pinheiro, Wander Valadares de Oliveira Junior, Karina Braga Gomes, Andréa Teixeira Carvalho, Olindo Assis Martins-Filho, Ana Cristina Simões E Silva, Luci Maria Sant'Ana Dusse
Hemodialysis is a modality of blood filtration in which accumulated toxins and water are removed from the body. This treatment is indicated for patients at the end stage of renal disease. Vascular access complications are responsible for 20-25% of all hospitalizations in dialyzed patients. The occurrence of thrombosis in the vascular access is a serious problem that may severely compromise or even make the hemodialysis impossible, which is vital for the patient. The aim of this study was to investigate inflammatory profile in patients undergoing hemodialysis as well as the association between these alterations and vascular access thrombosis...
2017: Disease Markers
https://www.readbyqxmd.com/read/28818354/retrospective-study-of-the-impact-of-unrecognised-kawasaki-disease-coronary-aneurysm-and-ectasia
#6
Benjamin R Waterhouse, Robert M R Tulloh, Yongcheol Kim, Will Creasy, David Adlam, Thomas W Johnson
BACKGROUND: Coronary artery aneurysms resulting from unrecognised or untreated Kawasaki Disease (KD) have thrombotic and stenotic potential leading to myocardial infarction. We aimed to characterise the prevalence and outcomes of patients presenting to a UK-based adult tertiary cardiology service with angiographic evidence of aneurysm or ectasia. METHODS: Retrospective review was undertaken of reports and original coronary angiograms in all patients under 50years old undergoing coronary angiography between 2011 and 2015...
August 10, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28818219/contemporary-outcomes-after-venography-guided-treatment-of-patients-with-may-thurner-syndrome
#7
Johnathon C Rollo, Steven M Farley, Adam Z Oskowitz, Karen Woo, Brian G DeRubertis
OBJECTIVE: Patients with May-Thurner syndrome (MTS) present with a spectrum of findings ranging from mild left leg edema to extensive iliofemoral deep venous thrombosis (DVT). Whereas asymptomatic left common iliac vein (LCIV) compression can be seen in a high proportion of normal individuals on axial imaging, the percentage of these persons with symptomatic compression is small, and debate exists about the optimal clinical and diagnostic criteria to treat these lesions in patients with symptomatic venous disease...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818211/evaluation-of-thrombolysis-using-tissue-plasminogen-activator-in-lower-extremity-deep-venous-thrombosis-with%C3%A2-concomitant-femoral-popliteal-venous-segment%C3%A2-involvement
#8
Mayin Lin, John C F Hsieh, Mian Hanif, Alan McDaniel, David K Chew
OBJECTIVE: Current guidelines recommend thrombolytic therapy for iliofemoral deep venous thrombosis (DVT). Anticoagulation is the standard treatment for femoral-popliteal and tibial-level DVT. The objective of this study was to evaluate the efficacy of catheter-directed thrombolysis (CDT) using tissue plasminogen activator vs standard anticoagulation alone in patients with lower extremity DVT involving the femoral-popliteal segment. METHODS: A retrospective review was performed of patients referred to the vascular surgery service with lower extremity DVT from 2006 to 2015...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28817831/practical-value-of-anti-xa-activity-in-the-evaluation-of-extracorporeal-circuit-anticoagulation-during-haemodialysis-results-of-a-cross-sectional-single-centre-study
#9
Karlien L M Coene, Marijke J E Dekker, Marieke C H M Kerskes, Maaike Hengst, Marc J M Schonck, Constantijn J A M Konings, Volkher Scharnhorst
BACKGROUND/AIMS: Anticoagulation of the extracorporeal circuit is essential for adequate haemodialysis (HD). Low molecular weight heparins (LMWHs) are safe and sufficient towards achieving this goal. In the Netherlands, dosage is based on bodyweight and adjusted based on clinical events. LMWH levels during dialysis can be quantified through measurement of the anti-Xa activity and a target range of 0.5-1.0 IU/mL has been proposed. We aimed to evaluate the practical value of the anti-Xa activity to guide LMWH dosage in HD patients...
August 18, 2017: Nephron
https://www.readbyqxmd.com/read/28817400/liver-xenotransplantation
#10
Madhukar S Patel, Nathan Louras, Parsia A Vagefi
PURPOSE OF REVIEW: There continues to be an inadequate organ supply and lack of effective temporary support, for patients with liver failure. The purpose of this review is to discuss recent progress in the field of orthotopic pig-to-nonhuman primate (NHP) liver xenotransplantation (LXT). RECENT FINDINGS: From 1968 to 2012, survival in pig-to-NHP LXT was limited to 9 days, initially due to hyperacute rejection which has been ameliorated through use of genetically engineered donor organs, but ultimately because of profound thrombocytopenia, thrombotic microangiopathy, and bleeding...
August 16, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28816739/nicolau-syndrome-embolia-cutis-medicamentosa-a-rare-and-poorly-recognized-iatrogenic-cause-of-cutaneous-thrombotic-vasculopathy
#11
Dominic Tabor, Chandra G Bertram, Andrew J K Williams, Marie E Mathers, Asok Biswas
Nicolau syndrome is a rare form of iatrogenic cutaneous necrosis which affects injection sites. Although classically associated with intramuscular injections, it may develop after subcutaneous or other routes of parenteral drug administration. Clinically, it manifests as necrotic ulcers that often develop in a background of erythematous and livedoid reticular patches. The histopathologic characteristics of Nicolau syndrome are poorly documented in the dermatopathology literature and features only rarely as one of the obscure causes of cutaneous thrombotic vasculopathy...
August 8, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28816059/atherothrombosis-and-oxidative-stress-mechanisms-and-management-in-elderly
#12
Francesco Violi, Lorenzo Loffredo, Roberto Carnevale, Pasquale Pignatelli, Daniele Pastori
SIGNIFICANCE The incidence of cardiovascular events increases by aging, representing the main cause of death in old population. Aging is associated with over-production of reactive oxygen species (ROS), which may affect clotting and platelet activation, and impair endothelial function so predisposing elderly patients to thrombotic complications. RECENT ADVANCES There are increasing evidences to suggest that aging is associated with an imbalance between oxidative stress and antioxidant status. Thus, up-regulation of ROS-producing enzymes such as nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and myeloperoxidase, along with down-regulation of antioxidant enzymes, such as superoxide dismutase and glutathione peroxidase, occur during aging...
August 17, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28815651/peptide-mimetic-drugs-for-modulating-thrombosis-and-hemostasis
#13
Kimberly Nellenbach, Ashley C Brown
Preclinical Research Hemostasis is the complex physiological process that stems bleeding at an injury site while simultaneously maintaining unobstructed circulation in other areas of the body. This system is kept in balance with finely tuned regulation by pro- and antithrombotic agents. When this balance is thrown out of equilibrium, uncontrolled bleeding, or thrombotic complications can occur. Because of the high number of hemostatic disorders, researchers are continually searching for improved technologies for controlling coagulation...
August 16, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28815344/long-term-survival-after-hematopoietic-stem-cell-transplantation-for-complete-stat1-deficiency
#14
Samuele Naviglio, Elena Soncini, Donatella Vairo, Arnalda Lanfranchi, Raffaele Badolato, Fulvio Porta
PURPOSE: Complete signal transducer and activator of transcription 1 (STAT1) deficiency is a rare autosomal recessive condition characterized by impairment of intracellular signaling from both type I and type II interferons (IFN). Affected patients are prone to early severe mycobacterial and viral infections, which usually result in death before 18 months of age. We previously reported a patient affected by complete STAT1 deficiency who underwent hematopoietic stem cell transplantation (HSCT)...
August 16, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28815189/a-case-of-pulmonary-vein-thrombosis-associated-with-treatment-of-omalizumab
#15
Sandhya Narukonda, Nagadarshini Ramagiri Vinod, Medha Joshi
Pulmonary vein thrombosis (PVT) is a challenging diagnosis and has been described in association with or as a complication of pulmonary tumors, lung surgeries, atrial myxoma, and after radiofrequency catheter ablation for atrial fibrillation. There are not many reported cases of PVT associated with medication use. We present a case of a 53-year-old male with a history of severe persistent asthma on omalizumab, who presented with shortness of breath and was found to have PVT on computed tomography scan of the chest...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28814953/in-vitro-characterization-of-jellyfish-venom-fibrin-ogen-olytic-enzymes-from-nemopilema-nomurai
#16
Seong Kyeong Bae, Hyunkyoung Lee, Yunwi Heo, Min Jung Pyo, Indu Choudhary, Chang Hoon Han, Won Duk Yoon, Changkeun Kang, Euikyung Kim
BACKGROUND: Because jellyfish are capable of provoking envenomation in humans, they are considered hazardous organisms. Although the effects of their toxins are a matter of concern, information on the venom components, biological activity and pathological mechanisms are still scarce. Therefore, the aim of the present study was to investigate a serine protease component of Nemopilema nomurai jellyfish venom (NnV) and unveil its characteristics. METHODS: To determine the relationship between fibrinolytic activity of NnV and the serine protease, fibrin zymography was performed using metalloprotease and serine protease inhibitors...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28814708/-a-case-of-pulmonary-tumor-thrombotic-microangiopathy-in-castration-resistant-prostate-cancer
#17
Kodai Hattahara, Akihiro Hamada, Rie Oyama, Kimihiko Masui, Yasumasa Shichiri
A man aged 83 years under treatment with enzalutamide for castration-resistant prostate cancer presented with general malaise and exertional dyspnea. The underlying cause could not be identified by further investigations. On the 5th hospital day, he died due to a sudden exacerbation of dyspnea. The results of an autopsy indicated tumor emboli and stenosis of small pulmonary arteries with the fibrocellular intimal thickening, and therefore our final diagnosis was pulmonary tumor thrombotic microangiopathy.
July 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28814233/statins-in-acute-coronary-syndromes
#18
Manolis Vavuranakis, Maria Kariori, Gerasimos Siasos, Konstantinos Kalogeras, Dimitris Tousoulis
BACKGROUND: Patients with acute coronary syndrome (ACS) frequently experience recurrent adverse events from the cardiovascular system comparing to either healthy individuals or individuals with stable coronary artery disease. This is attributed to the inflammatory cascade that is activated during ACS resulting in increased risk for rupture of vulnerable plaques. OBJECTIVE: Therefore, it is of great importance to avoid recurrent events with treatment aiming at secondary prevention which includes the management of lipid profile besides alteration in the lifestyle and habits...
August 15, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28812187/thrombotic-microangiopathy-and-breastfeeding-where-is-the-link-answers
#19
Jean Daniel Delbet, Tim Ulinski
No abstract text is available yet for this article.
August 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28812099/thrombotic-microangiopathy-and-breastfeeding-where-is-the-link-questions
#20
Jean Daniel Delbet, Tim Ulinski
No abstract text is available yet for this article.
August 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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