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https://www.readbyqxmd.com/read/28340300/synthesis-of-3-o-sulfated-oligosaccharides-to-understand-the-relationship-between-structures-and-functions-of-heparan-sulfate
#1
Zhangjie Wang, Po-Hung Hsieh, Yongmei Xu, David Thieker, Evangeline Juan En Chai, Shaoshuai Xie, Brian Cooley, Robert Woods, Lianli Chi, Jian Liu
The sulfation at the 3-OH position of glucosamine is an important modification in forming structural domains for heparan sulfate to enable its biological functions. Seven 3-O-sulfotransferase isoforms in the human genome are involved in the biosynthesis of 3-O-sulfated heparan sulfate. As a rare modification present in heparan sulfate, the availability of 3-O-sulfated oligosaccharides is very limited. Here, we report the use of a chemoenzymatic synthetic approach to synthesize six 3-O-sulfated oligosaccharides, including three hexasaccharides and three octasaccharides...
March 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28340041/bleeding-complications-in-patients-undergoing-intrathecal-drug-delivery-system-implantation
#2
Nafisseh S Warner, Markus A Bendel, Matthew A Warner, Jacob J Strand, Halena M Gazelka, Bryan C Hoelzer, William D Mauck, Tim J Lamer, Daryl J Kor, Susan M Moeschler
Introduction.:  Intrathecal drug delivery systems (IDDSs) have dramatically improved analgesia and the functional status of cancer patients and those with chronic pain states. However, given the close proximity to the neuraxis and frequent concomitant use of antiplatelet or anticoagulant medications, this intervention is not without risk. The goal of this investigation was to determine the incidence of bleeding complications following IDDS placement. Methods.:  This is a retrospective review from 2005 through 2014 of adult patients undergoing IDDS implantation or revision at a tertiary care center...
March 3, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28339917/hellp-syndrome-as-a-potential-cause-of-false-positive-lupus-anticoagulant-testing
#3
Zhen Mei, Krzysztof Mikrut, Jonathan Miller
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339897/reflex-lupus-anticoagulant-and-coagulation-factor-testing-has-low-utility-in-the-preoperative-surgical-hemostasis-assessment
#4
Stephen P Persaud, Ronald Jackups
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339885/alcohol-related-hospitalization-is-associated-with-increased-risk-of-ischaemic-stroke-among-low-risk-patients-with-atrial-fibrillation
#5
Faris Al-Khalili, Lina Benson, Leif Friberg
Aims: Patients with atrial fibrillation (AF) under the age of 65 and CHA2DS2-VASc risk score of 0 in men or 1 in women are considered to be at low risk for ischaemic stroke, and therefore without benefit of oral anticoagulation therapy. The objective of this study is to assess the incidence and predictors of ischaemic stroke among low-risk patients with AF identified from a National Patient Register. Methods and results: A retrospective study of 25 252 low-risk AF patients (age 18-64) out of total 345 123 AF patients identified from the Swedish Nationwide Patient Register for the period 1 January 2006 to 31 December 2012...
February 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339843/availability-and-cost-of-extracorporeal-treatments-for-poisonings-and-other-emergency-indications-a-worldwide-survey
#6
Josée Bouchard, Valery Lavergne, Darren M Roberts, Monique Cormier, Genevieve Morissette, Marc Ghannoum
Background: Extracorporeal treatments (ECTRs) are used for different conditions, including replacement of organ function and poisoning. Current recommendations for ECTRs in various poisonings suggest that intermittent haemodialysis (IHD) is the most efficient technique. However, the practicality of these recommendations is poorly defined in view of limited information on availability and cost worldwide. Methods: A survey invitation to an Internet-based questionnaire was emailed between January 2014 and March 2015 to members of international societies to determine the availability, time to initiation and cost of ECTRs (including filters, dialysate, catheter, anticoagulant and nursing/physician salary)...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339794/short-term-dabigatran-interruption-before-cardiac-rhythm-device-implantation-multi-centre-experience-from-the-re-ly-trial
#7
Vidal Essebag, Riccardo Proietti, David H Birnie, Jia Wang, James Douketis, Benoit Coutu, Ratika Parkash, Gregory Y H Lip, Stefan H Hohnloser, Andrew Moriarty, Jonas Oldgren, Stuart J Connolly, Michael Ezekowitz, Jeff S Healey
Aims: Cardiac implantable electronic device (CIED) surgery is commonly performed in patients with atrial fibrillation (AF). The current analysis was undertaken to compare peri-operative anticoagulation management, bleeding, and thrombotic events in AF patients treated with dabigatran vs. warfarin. Methods and results: This study included 611 patients treated with dabigatran vs. warfarin who underwent CIED surgery during the RE-LY trial. Among 201 warfarin-treated patients, warfarin was interrupted a median of 144 (inter-quartile range, IQR: 120-216) h, and 37 (18...
February 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339551/anticoagulant-and-antiplatelet-management-for-spinal-procedures-a-prospective-descriptive-study-and-interpretation-of-guidelines
#8
Bradly S Goodman, L McLean House, Sridhar Vallabhaneni, Srinivas Mallempati, Matthew R Willey, Matthew Thomas Smith
Setting.:  Epidural hematoma rarely complicates interventional spine procedures. While anticoagulant and antiplatelet drugs increase bleeding risk, cessation may precipitate serious thromboembolic events. The Spine Intervention Society (SIS) and American Society of Regional Anesthesia and Pain Medicine (ASRA) put forth guidelines that dissent with regard to management of hemostatically active agents during commonly performed spinal injections. Objective.:  To validate an antiplatelet/anticoagulant management table based on modifications of the SIS 2013 and ASRA 2015 guidelines...
October 6, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28335566/profiling-and-preparation-of-metabolites-from-pyragrel-in-human-urine-by-online-solid-phase-extraction-coupled-with-high-performance-liquid-chromatography-tandem-mass-spectrometry-followed-by-a-macroporous-resin-based-purification-approach
#9
Xin Zhao, Jingjing Jiang, Guang Yang, Jie Huang, Guoping Yang, Guangwei He, Zhaoxing Chu, Taijun Hang, Guorong Fan
Pyragrel, a new anticoagulant drug, is derived from the molecular combination of ligustrazine and ferulic acid. Pyragrel showed significant inhibitory activity against platelet aggregation induced by adenosine diphosphate (ADP), and had been approved for a phase I clinical trial by CFDA. To characterize the metabolites of Pyragrel in human urine after intravenous administration, a reliable online solid-phase extraction couple with high performance liquid chromatography tandem mass spectrometry (online SPE-HPLC-MS(n)) method was conceived and applied...
March 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28334639/inferior-vena-cava-filters-in-patients-with-cancer-and-venous-thromboembolism-vte-does-not-improve-clinical-outcomes-a-population-based-study
#10
Ann Brunson, Gwendolyn Ho, Richard White, Ted Wun
BACKGROUND: There are few studies that have determined clinical outcomes following inferior vena cava filter (IVCF) insertion in cancer patients hospitalized for acute deep-vein-thrombosis (DVT) or pulmonary embolism (PE). METHODS AND RESULTS: We analyzed hospital discharge records of all patients with active cancer who were admitted to a California hospital specifically for acute DVT or PE between 2005 through 2009. Propensity and competing risk methodology were used to determine if IVCF-use lowered either 30-day mortality or the risk of recurrent PE, DVT, and major bleeding within 180days...
March 16, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28334544/-antiplatelet-thromboprophylaxis-of-arterial-vascular-diseases-and-organovascular-ischemic-diseases
#11
Peter Gavorník, Andrej Dukát, Ľudovít Gašpar, Eva Gavorníková, Naďa Hučková, Anna Petrášová, Gabriela Gubo, Iveta Gašparová, Lujza Sabolová
Antiplatelet therapy by acetylsalicylic acid (ASA, aspirin) provided pivotal advances in the prevention and treatment of organovascular (angiovascular, cardiovascular, cerebrovascular, extremitovascular, renovascular, genitovascular, mesenteriointestinokolonovascular, bronchopulmovascular, oculovascular, otovascular and other) arterial ischemic diseases. Currently available antiplatelet drugs have some limitations which might be overcomed by improved dosing regimens, use of combination of agents affecting different platelet functions and, in particular, by the new antiplatelet drugs (new arterial antithrombotics) with distinct pharmacodynamic properties offering new advantages, including faster onset of action, greater potency, and reversibility of effects...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28333727/long-term-nsaids-and-acetaminophen-linked-to-hearing-loss-in-women
#12
Joan Zolot
Duration of aspirin use, however, doesn't affect hearing.
April 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28333301/preconception-maternal-lipoprotein-levels-in-relation-to-fecundability
#13
Sarah J Pugh, Enrique F Schisterman, Richard W Browne, Anne M Lynch, Sunni L Mumford, Neil J Perkins, Robert Silver, Lindsey Sjaarda, Joseph B Stanford, Jean Wactawski-Wende, Brian Wilcox, Katherine L Grantz
STUDY QUESTION: Are maternal preconception lipid levels associated with fecundability? SUMMARY ANSWER: Fecundability was reduced for all abnormal female lipid levels including total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and total triglyceride levels. WHAT IS KNOWN ALREADY: Subfecundity affects 7-15% of the population and lipid disorders are hypothesized to play a role since cholesterol acts as a substrate for the synthesis of steroid hormones...
March 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332378/quantitative-computed-tomographic-volumetry-after-treatment-of-a-giant-intracranial-aneurysm-with-a-pipeline-embolization-device
#14
Woong Jae Lee, Jun Soo Byun, Jae Kyun Kim, Taek Kyun Nam
Recently developed flow diverters, such as the pipeline embolization device (PED), allow for safe and efficacious treatment of giant intracranial aneurysms, with high occlusion rates and a low incidence of complications. However, incomplete obliteration after PED treatment may lead to aneurysm regrowth and delayed rupture. Herein, we report a case of a partially thrombosed giant aneurysm of the cavernous internal carotid artery that showed progressive recanalization at 1-3 months after application of a PED...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28332376/pathological-significance-of-tissue-trapped-in-retrieved-optease-vena-cava-filter-at-18th-day-after-installation-in-patient-with-deep-vein-thrombosis
#15
Sang Min Park, Jung Woo Son, Kyung Soon Hong, Kyung Chan Choi
The retrievable type of inferior vena cava filter has been widely used to prevent pulmonary thromboembolism in patients with deep vein thrombosis and contraindication of anticoagulation. Physicians make considerable efforts to remove the filter according to the manufacturer and US Food and Drug Administration safety advisory recommendation. However, forced filter retrieval might cause vascular injury within 3 weeks. Herein, we report pathologic and angiographic findings to suggest filter associated vascular injury during forced retrieval just within recommended period in a patient with deep vein thrombosis...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28332273/reducing-the-incidence-of-hepatic-artery-thrombosis-in-pediatric-liver-transplantation-effect-of-microvascular-techniques-and-a-customized-anticoagulation-protocol
#16
William A Ziaziaris, Alexandre Darani, Andrew J A Holland, Angus Alexander, Jonathan Karpelowsky, Pasquale Barbaro, Michael Stormon, Edward O'Loughlin, Albert Shun, Gordon Thomas
We aimed to assess the incidence of HAT over three eras following implementation of microvascular techniques and a customized anticoagulation protocol in a predominantly cadaveric split liver transplant program. We retrospectively reviewed pediatric liver transplants performed between April 1986 and 2016 and analyzed the incidence HAT over three eras. In E1, 1986-2008, each patient received a standard dose of 5 U/kg/h of heparin and coagulation profiles normalized passively. In E2, 2008-2012, microvascular techniques were introduced...
March 22, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28332097/novel-and-advanced-techniques-for-complex-ivc-filter-retrieval
#17
REVIEW
Dania Daye, T Gregory Walker
Inferior vena cava (IVC) filter placement is indicated for the treatment of venous thromboembolism (VTE) in patients with a contraindication to or a failure of anticoagulation. With the advent of retrievable IVC filters and their ease of placement, an increasing number of such filters are being inserted for prophylaxis in patients at high risk for VTE. Available data show that only a small number of these filters are retrieved within the recommended period, if at all, prompting the FDA to issue a statement on the need for their timely removal...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28332005/levetiracetam-synergizes-with-gabapentin-pregabalin-duloxetine-and-selected-antioxidants-in-a-mouse-diabetic-painful-neuropathy-model
#18
Radica Stepanović-Petrović, Ana Micov, Maja Tomić, Uroš Pecikoza
RATIONALE: We have reported that levetiracetam, a novel anticonvulsant with analgesic properties, synergizes with ibuprofen/aspirin/paracetamol in a model of diabetic painful neuropathy (DPN). Most guidelines recommend gabapentin, pregabalin, and duloxetine as first- or second-line agents for DPN. OBJECTIVE: We examined the effects of combination treatment of first-/second-line analgesics with levetiracetam in a model of DPN. Additionally, the levetiracetam's combinations with antioxidants, low dose of aspirin, coenzyme Q10, or α-lipoic acid were evaluated...
March 22, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28331932/pulmonary-embolism-and-in-situ-pulmonary-artery-thrombosis-in-paediatrics-a-systematic-review
#19
Madhvi Rajpurkar, Tina Biss, Ernest Amankwah, Denise Martinez, Suzan Williams, C Heleen Van Ommen, Neil A Goldenberg
Data on paediatric pulmonary embolism (PE) are scarce. We sought to systematically review the current literature on childhood PE and conducted a search on paediatric PE via PubMed (1946-2013) and Embase (1980-2013). There was significant heterogeneity in reported data. Two patterns were noted: classic thromboembolic PE (TE-PE) and in situ pulmonary artery thrombosis (ISPAT). Mean age of presentation for TE-PE was 14.86 years, and 51 % of cases were males. The commonest method for diagnosis of TE-PE was contrast CT with angiography (74 % of patients)...
March 23, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28331926/cessation-of-oral-anticoagulation-is-an-important-risk-factor-for-stroke-and-mortality-in-atrial-fibrillation-patients
#20
José Miguel Rivera-Caravaca, Vanessa Roldán, María Asunción Esteve-Pastor, Mariano Valdés, Vicente Vicente, Gregory Y H Lip, Francisco Marín
Oral anticoagulation (OAC) is highly effective preventing stroke and mortality in AF, but withdrawal is common in the elderly, when high bleeding risk and when are difficulties achieving an optimal time in therapeutic range (TTR). We analysed the rate of OAC cessation, predisposing factors to cessation and the relation to clinical outcomes in a large 'real world' cohort of AF patients over a long follow-up period. Consecutive non-valvular AF outpatients clinically stables for six months were recruited. Rates of cardiovascular events, major bleeding and mortality were recorded and related to OAC cessation...
March 23, 2017: Thrombosis and Haemostasis
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