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anti-coagulation

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https://www.readbyqxmd.com/read/29040872/highly-elevated-plasma-level-of-von-willebrand-factor-accelerates-the-formation-of-platelet-thrombus-under-high-shear-stress-in-plasma-with-deficient-adamts13-activity
#1
Hideo Yagi, Naoko Yamaguchi, Yasuaki Shida, Mitsuhiko Sugimoto, Kazuo Tubaki, Yoshihiro Fujimura, Masanori Matsumoto
Upshaw-Schulman syndrome (USS) is a thrombo-hemorrhagic disease caused by congenital deficiency of ADAMTS13 due to ADAMTS13 gene mutations. USS is characterized by repeated episodes of thrombocytopenia and microangiopathic hemolytic anemia that respond dramatically to infusions of fresh frozen plasma. There are two phenotypic expressions of USS: one is the early-onset type and the other, the late-onset type, is asymptomatic during childhood with the first bout of thrombotic thrombocytopenic purpura (TTP) developing after adolescence or during adulthood...
October 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29031817/bcrp-abcg2-and-high-alert-medications-biochemical-pharmacokinetic-pharmacogenetic-and-clinical-implications
#2
REVIEW
Daiki Hira, Tomohiro Terada
The human breast cancer resistance protein (BCRP/ABCG2) is an ATP-binding cassette efflux transporter that uses ATP hydrolysis to expel xenobiotics from cells, including anti-cancer medications. It is expressed in the gastrointestinal tract, liver, kidney, and brain endothelium. Thus, ABCG2 functions as a tissue barrier to drug transport that strongly influences the pharmacokinetics of substrate medications. Genetic polymorphisms of ABCG2 are closely related to inter-individual variations in therapeutic performance...
October 12, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29026346/treatment-with-direct-oral-anticoagulants-in-patients-with-upper-extremity-deep-vein-thrombosis
#3
Francisco Sánchez Montiel, Raein Ghazvinian, Anders Gottsäter, Johan Elf
BACKGROUND: Upper extremity deep vein thrombosis (UEDVT) constitutes around 10% of all DVT, and can cause both pulmonary embolism (PE) and postthrombotic syndrome (PTS) in the arm. The incidence of secondary UEDVT is increasing due to widespread use of central venous catheters in patients with cancer and other chronic diseases. The safety and efficacy of using new direct acting oral anti coagulants (DOAC) in the treatment of UEDVT has not been systematically evaluated. Our aims were to evaulate efficacy, safety, and risk of recurrence of venous thromboembolism (VTE) during DOAC treatment in UEDVT patients...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28987857/intracranial-hemorrhage-in-patients-with-durable-mechanical-circulatory-support-devices-institutional-review-and-proposed-treatment-algorithm
#4
Wyatt L Ramey, Robyn L Basken, Christina M Walter, Zain Khalpey, G Michael Lemole, Travis M Dumont
OBJECTIVE: Spontaneous intracranial hemorrhage (ICH) is frequently managed in neurosurgery. Patients with durable mechanical circulatory support devices, including total artificial hearts (TAHs) and left ventricular assist devices (LVADs) are often encountered in the setting of ICH. While durable mechanical circulatory support devices have improved survival and quality of life for patients with advanced heart failure, ICH is one of the most feared complications following LVAD and TAH implantation...
October 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28969597/the-effect-of-regional-citrate-anti-coagulation-on-the-coagulation-system-in-critically-ill-patients-receiving-continuous-renal-replacement-therapy-for-acute-kidney-injury-an-observational-cohort-study
#5
Richard Fisher, Katie Lei, Mike J Mitchell, Gary W Moore, Helen Dickie, Linda Tovey, Siobhan Crichton, Marlies Ostermann
BACKGROUND: Regional anticoagulation with citrate is the recommended first line treatment for patients receiving continuous renal replacement therapy (CRRT). There is wide variability in filter patency which may be due to differences in patient characteristics and local practice. It is also possible that citrate has effects on primary and secondary haemostasis, fibrinolysis and platelet function that are still unknown. The primary aim of the study is to describe the effect of citrate on coagulation and fibrinolysis pathways in both the patient and the haemodialysis circuit...
October 2, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28969191/an-attempt-to-make-platelet-rich-fibrin-from-bone-marrow-aspirate
#6
Soh Nishimoto, Kazutoshi Fujita, Toshihiro Fujiwara, Yohei Sotsuka, Maki Tonooka, Hisako Ishise, Kenichiro Kawai, Masao Kakibuchi
INTRODUCTION: Platelet Rich Fibrin (PRF) was developed as a new generation of platelet concentration from peripheral blood. Method to make PRF is simple. It is easy to handle with its moderate firmness. Histologically, platelets and nucleated cells are packed along the yellow-red border. Bone marrow aspirate contains bone marrow cells that potentially work for tissue regeneration, and platelets which contain growth factors. The specific gravities of them are comparable. It implies that, if it is possible to make PRF from bone marrow aspirate, then high concentration of platelets and bone marrow cells can be obtained simultaneously by taking out yellow-red interface of it...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28962205/successful-treatment-of-acute-renal-infarction-arising-from-left-atrial-myxoma-and-atrial-fibrillation-a-case-report
#7
Lei Ji, Junli Gong, Feng Liu, Yixuan Wang, Dan Jiao, Ziyuan Ni, Guanjie Zhao, Yingying Liu
Acute renal infarction (ARI) is an uncommon disease and delayed diagnosis or misdiagnosis often leads to rapid deterioration of the patient. As patients with atrial fibrillation and left atrial myxomas are at risk of developing ARI due to cardiogenic thromboembolism, it is pivotal for clinicians to make a correct diagnosis and start a timely treatment. The present study reported on the case of a 68-year-old man who suffered from ARI secondary to thromboembolism associated with atrial fibrillation and left atrial myxomas...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28959073/subcutaneous-basidiobolomycosis-a-case-report
#8
Adziri Sackey, Nenyin Ghartey, Richard Gyasi
Basidiobolomycosis is an uncommon chronic deep fungal infection in which gradually enlarging granulomas form, usually in the subcutaneous fat tissues of the limbs, chest or trunk of immunocompetent hosts, primarily children and young adults. It is caused by the fungus Basidiobolus ranarum. Definitive diagnosis is by microscopy and histopathology. Effective treatments include ketoconazole, itraconazole, potassium iodide and co-trimoxazole. A 3 year old girl presented with ulcerations on the right thigh for one month, and painful swelling of the right leg and right buttock for six months...
March 2017: Ghana Medical Journal
https://www.readbyqxmd.com/read/28951682/clinical-pharmacists-as-medication-therapy-experts-in-diabetic-clinics-in-saudi-arabia-not-just-a-perception-but-a-need
#9
REVIEW
Hafiz A Makeen
The pharmacist's role is expanding from medication dispensing to patient care. There are several newer horizons in which clinical pharmacists have a vital role to play such as diabetic care, handling asthma patients, pain management, anti-coagulation therapy and in hyperlipidemia. Among these, the disorder that is perceived to reach epidemic proportions globally is diabetes mellitus. In the Arab world, particularly in countries like Saudi Arabia, the number affected and the cost incurred in the management of diabetes are relatively high...
September 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28950024/the-role-of-corm-2-as-a-modulator-of-oxidative-stress-and-hemostatic-parameters-of-human-plasma-in-vitro
#10
Weronika Adach, Beata Olas
PURPOSE: The main aim of the experiment is to examine the effect of CORM-2, a donor of carbon monoxide (CO), on oxidative stress in human plasma in vitro. In addition, it examines the effects of CORM-2 on the hemostatic parameters of plasma: the activated partial thromboplastin time (APTT), thrombin time (TT) and prothrombin time (PT). METHODS: Human plasma was incubated for 5-60 min with different concentrations of CORM-2: 0.1-100 μM. Following this, various hemostatic factors and biomarkers of oxidative stress were studied...
2017: PloS One
https://www.readbyqxmd.com/read/28949131/heparin-binding-to-an-engineered-virus-like-nanoparticle-antagonist
#11
Ho Yong Cheong, Myles Groner, Kevin Hong, Brennen Lynch, William R Hollingsworth, Zinaida Polonskaya, Jin-Kyu Rhee, Michael M Baksh, M G Finn, Andrew J Gale, Andrew K Udit
The anticoagulant activity of heparin administered during medical interventions must be reversed to restore normal clotting, typically by titrating with protamine. Given the acute toxicity associated with protamine, we endeavored to generate safer heparin antagonists by engineering bacteriophage Qβ virus-like particles (VLPs) to display motifs that bind heparin. A particle bearing a single amino acid change from wild-type (T18R) was identified as a promising candidate for heparin antagonism. Surface potential maps generated through molecular modeling reveal that the T18R mutation adds synergistically to adjacent positive charges on the particle surface, resulting in a large solvent-accessible cationic region that is replicated 180 times over the capsid...
October 18, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28947633/post-myocardial-infarction-left-ventricular-pseudoaneurysm-diagnosed-incidentally-by-echocardiography
#12
Rienzi Diaz-Navarro, Petros Nihoyannopoulos
A 54-year-old man developed a left ventricular pseudoaneurysm (Ps) along the lateral wall of the left ventricle (LV), which was diagnosed incidentally by two-dimensional transthoracic echocardiography (2DTTE) 6 months after an acute myocardial infarction. Colour flow imaging (CFI) showed blood flow from the LV into the aneurysmal cavity and invasive coronary angiography revealed sub-occlusion of the circumflex artery. A complementary study using cardiovascular magnetic resonance (CMR) confirmed a dilated left ventricle with depressed ejection fraction, thin dyskinetic anterolateral and inferolateral walls, a Ps adjacent to the lateral wall of the LV contained by the pericardium, and blood passing in and out through a small defect in the LV mid-anterolateral wall...
September 25, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28943416/top-100-most-cited-articles-on-spontaneous-intracerebral-hemorrhage-a-bibliometric-analysis
#13
REVIEW
Syed Ali Raza Nasir, Jaleed Ahmed Gilani, Kaneez Fatima, Urooba Faheem, Omar Kazmi, Javed Siddiqi, Faisal Khosa
BACKGROUND: A bibliometric uses the citation count of an article to determine its impact on the clinical world. There is a paucity of literature concerning top article citations on spontaneous intracerebral hemorrhage (ICH). The main objective of this investigation was to bridge this gap and to provide understanding of the trends on the most influential articles written on this subject. METHODS: Scopus Library database was searched to determine the citations of all published spontaneous ICH articles...
September 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28941176/optimized-human-platelet-lysate-as-novel-basis-for-a-serum-xeno-and-additive-free-corneal-endothelial-cell-and-tissue-culture
#14
Daniel Thieme, Lynn Reuland, Toni Lindl, Friedrich Kruse, Thomas Fuchsluger
INTRODUCTION: The expansion of donor derived corneal endothelial cells is a promising approach for regenerative therapies in corneal diseases. To achieve the best GMP standard the entire cultivation process should be devoid of non-human components. However, so far there is no suitable xeno-free protocol for clinical applications. METHODS: We therefore introduce a processed variant of a platelet lysate for the use in corneal cell and tissue culture based on a GMP-grade thrombocyte concentrate...
September 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28930589/procoagulant-activity-during-viral-infections
#15
Saravanan Subramaniam, Inge Scharrer
The abundance of evidence suggest that inflammation of immune and non-immune cells may lead to an imbalance of the pro- and anti-coagulant state during viral infections. During systemic infections, the endothelium plays a critical role in regulating hemostasis, and severe imbalances of endothelial function and activation can contribute to organ failure. Viral infections may elevate plasma levels of procoagulant markers such as TAT and D-dimer TF-positive MPs as well as von Willebrand factor (vWF). Although multiple clinical studies are showing the association of viral infection and increased prothrombotic risk, the pathological mechanisms have not been fully identified for most viral infections...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28929012/current-practice-in-the-management-of-new-onset-atrial-fibrillation-in-critically-ill-patients-a-uk-wide-survey
#16
Chung Shen Chean, Daniel McAuley, Anthony Gordon, Ingeborg Dorothea Welters
BACKGROUND: New-onset atrial fibrillation (AF) is the most common arrhythmia in critically ill patients. Although evidence base and expert consensus opinion for management have been summarised in several international guidelines, no specific considerations for critically ill patients have been included. We aimed to establish current practice of management of critically ill patients with new-onset AF. METHODS: We designed a short user-friendly online questionnaire...
2017: PeerJ
https://www.readbyqxmd.com/read/28927636/feasibility-of-coronary-fractional-flow-reserve-with-dual-anti-platelet-therapy-in-low-risk-coronary-lesions-without-systemic-anticoagulation-results-of-the-smart-ffr-study
#17
Fernando Boccalandro, Mandeep Dhindsa, Prem Subramaniyam, Mary Mok
BACKGROUND: Fractional flow reserve (FFR) is used to assess the functional significance of coronary artery stenoses. The optimal anti-thrombotic regimen for FFR has not been studied. PURPOSE: The goal of this study was to determine whether FFR could be safely performed in Type A coronary lesions, using only upstream dual anti-platelet therapy (DAT) with aspirin and clopidogrel, compared with DAT plus anticoagulation in low risk coronary lesions. METHODS/MATERIALS: Two hundred patients undergoing FFR for Type A intermediate coronary lesions were blindly randomized into two groups of 100 patients each...
August 18, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28923772/reference-intervals-of-citrated-native-whole-blood-thromboelastography-in-premature-neonates
#18
Mario Motta, Brunetta Guaragni, Elena Pezzotti, Carmen Rodriguez-Perez, Gaetano Chirico
BACKGROUND: Bleeding due to acquired coagulation disorders is a common complication in premature neonates. In this clinical setting, standard coagulation laboratory tests might be unsuitable to investigate the hemostatic function as they reflect the concentration of pro-coagulant proteins but not of anti-coagulant proteins. Thromboelastography (TEG), providing a more complete assessment of hemostasis, may be able to overcome some of these limitations. Unfortunately, experience on the use of TEG in premature neonates is very limited and, in particular in this population, reference ranges of TEG parameters have not been yet evaluated...
September 15, 2017: Early Human Development
https://www.readbyqxmd.com/read/28920085/baseline-prescription-and-one-year-persistence-of-secondary-prevention-drugs-after-an-index-stroke-in-central-ghana
#19
Fred Stephen Sarfo, Bruce Ovbiagele, John Akassi, Gloria Kyem
BACKGROUND AND PURPOSE: There is a paucity of data on persistence of secondary prevention medications among stroke survivors in resource-limited settings where stroke is on a rapid upward trajectory and its management severely challenged. To avert new cardiovascular events after stroke, preventive medications should be promptly instituted and used continuously. We report 1-year rates and determinants of persistent utilization of secondary prevention therapies after stroke in Ghana. METHODS: A retrospective observational study involving 418 stroke survivors enrolled into a Neurology clinic in a tertiary institution in central Ghana between January 2011 and December 2013...
March 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/28914800/effect-of-clotting-duration-and-temperature-on-bdnf-measurement-in-human-serum
#20
Patrizia Amadio, Leonardo Sandrini, Alessandro Ieraci, Elena Tremoli, Silvia Stella Barbieri
Brain-derived neurothrophic factor (BDNF) is a neurotrophin expressed in different tissues and cells, including neurons, endothelial cells, leukocytes, megakaryocytes and platelets. Modifications of BDNF in plasma and/or in serum are associated with neurodegenerative and psychiatric disorders, cardiovascular diseases, metabolic syndrome and with mortality risk. Indeed, changes in blood levels of BDNF may reflect those of its tissue of origin and/or promote pathological dysfunctions. The measurement of BDNF amount in plasma or in serum has been characterized with particular attention in the impact of different anti-coagulants, clotting duration, temperature (≤21 °C) and delay in blood sample centrifugation as well as in stability of storage...
September 15, 2017: International Journal of Molecular Sciences
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