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Low molecular heparin

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https://www.readbyqxmd.com/read/28091396/anti-angiogenic-activity-and-antitumor-efficacy-of-amphiphilic-twin-drug-from-ursolic-acid-and-low-molecular-weight-heparin
#1
Wenming Cheng, Fatima Zohra Dahmani, Juan Zhang, Hui Xiong, Yuanyuan Wu, Lifang Yin, Jianping Zhou, Jing Yao
Heparin, a potential blood anti-coagulant, is also known for its binding ability to several angiogenic factors through electrostatic interactions due to its polyanionic character. However, the clinical application of heparin for cancer treatment is limited by several drawbacks, such as unsatisfactory therapeutic effects and severe anticoagulant activity that could induce hemorrhaging. Herein, low molecular weight heparin (LMWH) was conjugated to ursolic acid (UA), which is also an angiogenesis inhibitor, by binding the amine group of aminoethyl-UA (UA-NH2) with the carboxylic groups of LMWH...
January 16, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28090465/does-intrauterine-injection-of-low-molecular-weight-heparin-improve-the-clinical-pregnancy-rate-in-intracytoplasmic-sperm-injection
#2
Ahmed Mohamed Kamel, Yahia El-Faissal, Mona Aboulghar, Ragaa Mansour, Gamal I Serour, Mohamed Aboulghar
OBJECTIVE: Heparin can modulate proteins, and influence processes involved in implantation and trophoblastic development. This study aimed to assess the improvement of clinical pregnancy and implantation rates after local intrauterine injection of low-molecular-weight heparin (LMWH) in patients undergoing intracytoplasmic sperm injection (ICSI). METHODS: A randomised case/control design was followed in women scheduled for ICSI. The study arm was injected with intrauterine LMWH during mock embryo transfer immediately following the ovum pickup procedure, while the control arm was given an intrauterine injection with a similar volume of tissue culture media...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28089975/in-vitro-fertilization-in-37-women-with-systemic-lupus-erythematosus-or-antiphospholipid-syndrome-a-series-of-97-procedures
#3
Pauline Orquevaux, Agathe Masseau, Véronique Le Guern, Vanessa Gayet, Danièle Vauthier, Gaelle Guettrot-Imbert, Du Le Thi Huong, Bertrand Wechsler, Nathalie Morel, Patrice Cacoub, Jean-Loup Pennaforte, Jean-Charles Piette, Nathalie Costedoat-Chalumeau
OBJECTIVE: To compile and assess data about complication and success rates for in vitro fertilization (IVF) of women with systemic lupus erythematosus (SLE) and/or antiphospholipid syndrome (APS). To date, such data are sparse. METHODS: This retrospective study described women with SLE and/or APS who have had at least 1 IVF cycle. RESULTS: Thirty-seven women with SLE (n = 23, including 8 with antiphospholipid antibodies), SLE with APS (n = 4), or primary APS (n = 10) underwent 97 IVF procedures...
January 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28089150/anticoagulant-bridging-in-left-sided-mechanical-heart-valve-patients
#4
E A Hart, R Jansen, T A Meijs, B J Bouma, R K Riezebos, W Tanis, W J P van Boven, V Hindori, N Wiersma, T Dessing, J Westerink, S A J Chamuleau
BACKGROUND: In preparation for an invasive procedure with a high bleeding risk, patients with a mechanical heart valve temporarily have to discontinue their anticoagulant therapy and are usually bridged with either intravenous unfractionated heparin (UFH) or subcutaneous low-molecular-weight heparin (LMWH). In this study we retrospectively analyzed the safety of UFH versus LMWH as bridging strategy in left-sided mechanical heart valve patients. METHODS: We performed a retrospective multicenter study in four surgical centers in The Netherlands...
January 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28087311/-the-role-of-novel-oral-anticoagulants-in-patients-undergoing-cryoballoon-ablation-for-atrial-fibrillation
#5
Giannis Baltogiannis, Gian-Battista Chierchia, Giulio Conte, Juan Sieira, Giacomo Di Giovanni, Giuseppe Ciconte, Carlo de Asmundis, Yukio Saitoh, Kristel Wauters, Ghazala Irfan, Pedro Brugada
AIM: Peri-procedural thromboembolic (TE) and hemorrhagic events are complications of major concern for patients undergoing cryoballoon (CB) ablation for atrial fibrillation (AF). While peri-procedural anticoagulation management could decrease the incidence of these complications, data on CB ablation are scarce. The role of novel oral anticoagulants (NOACs) has not been thoroughly tested in this population. METHODS: In the present study, we sought to assess acute peri-procedural complications in patients undergoing CB ablation for AF under different anticoagulation regimens; anticoagulation administration was performed according to the CHA2DS2-VASc score guidelines...
November 16, 2016: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28078351/outcomes-of-low-molecular-weight-heparin-treatment-for-venous-thromboembolism-in-patients-with-primary-and-metastatic-brain-tumours
#6
Chatree Chai-Adisaksopha, Lori-Ann Linkins, Said Y ALKindi, Matthew Cheah, Mark A Crowther, Alfonso Iorio
Venous thromboembolism (VTE) is one of the most common complications in patients with brain tumours. There is limited data available in the literature on VTE treatment in these patients. We conducted a matched retrospective cohort study of patients with primary or metastatic brain cancer who were diagnosed with cancer-associated VTE. Patients were selected after a retrospective chart review of consecutive patients who were diagnosed with cancer-associated VTE between January 2010 and January 2014 at the Juravinski Thrombosis Clinic, Hamilton, Canada...
January 12, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28073874/successful-pregnancy-following-treatment-of-recurrent-chronic-histiocytic-intervillositis
#7
Leehe Vardi, Helen Paterson, Noelyn Anne Hung
Chronic histiocytic intervillositis (CHI) is a rare placental lesion associated with adverse obstetric outcomes and high recurrence rate. We report a case of six consecutive pregnancies in one woman, where CHI was detected following an intrauterine death in the fifth pregnancy, after being missed in four earlier losses. The successful sixth pregnancy was treated with a combination of immunosuppressive and antithrombotic agents. While low-molecular-weight heparin (LMWH) and aspirin had been shown to improve pregnancy outcome in recurrent pregnancy loss, there was limited evidence of improved outcome in CHI...
January 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28071140/development-and-characterization-of-polymer-lipid-hybrid-nanoparticles-for-oral-delivery-of-lmwh
#8
Supandeep Singh Hallan, Veerpal Kaur, Vikas Jain, Neeraj Mishra
The present study aimed to develop an improved oral delivery system for low-molecular-weight heparin (LMWH), novel polymer lipid hybrid nanoparticles were developed. LMWH loaded chitosan polymer lipid hybrid nanoparticles (LMWH-CS-PLNs) were developed using double emulsification and solvent evaporation method. The performance of developed formulations was evaluated by using in vitro and in vivo behavior, such as drug release studies, in vitro permeation study, in vivo venous thrombolytic study, in vitro uptake studies by using intestinal epithelium resembling Caco-2 cell lines...
January 10, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28068519/qualification-of-hsqc-methods-for-quantitative-composition-of-heparin-and-low-molecular-weight-heparins
#9
Lucio Mauri, Giovanni Boccardi, Giangiacomo Torri, Michael Karfunkle, Eleonora Macchi, Laura Muzi, David Keire, Marco Guerrini
An NMR HSQC method has recently been proposed for the quantitative determination of the mono- and disaccharide subunits of heparin and low molecular weight heparins (LMWH). The focus of the current study was the validation of this procedure to make the 2D-NMR method suitable for pharmaceutical quality control applications. Pre-validation work investigated the effects of several experimental parameters to assess robustness and to optimize critical factors. Important experimental parameters were pulse sequence selection, equilibration interval between pulse trains and temperature...
December 26, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28065766/changes-in-one-year-mortality-in-elderly-patients-admitted-with-acute-myocardial-infarction-in-relation-with-early-management
#10
Etienne Puymirat, Nadia Aissaoui, Guillaume Cayla, Alexandre Lafont, Elisabeth Riant, Marco Mennuni, Olivier Saint-Jean, Didier Blanchard, Patrick Jourdain, Meyer Elbaz, Patrick Henry, Vincent Bataille, Elodie Drouet, Geneviève Mulak, François Schiele, Jean Ferrières, Tabassome Simon, Nicolas Danchin
BACKGROUND: Elderly patients are underrepresented in acute myocardial infarction trials. Our aim was to determine whether, in elderly patients, changes in management in the past 15 years is associated with improved one-year mortality after hospital admission for myocardial infarction. METHODS: We used data from 4 one-month French registries, conducted 5 years apart from 1995 to 2010, including 3,389 elderly patients (≥75 years). RESULTS: From 1995 to 2010, mean age remained stable (82...
January 5, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28062137/direct-oral-anti-coagulants-compared-with-vitamin-k-inhibitors-and-low-molecular-weight-heparin-for-the-prevention-of-venous-thromboembolism-in-patients-with-cancer-a-meta-analysis-study
#11
REVIEW
Natale Daniele Brunetti, Enrico Gesuete, Luisa De Gennaro, Michele Correale, Pasquale Caldarola, Antonio Gaglione, Matteo Di Biase
BACKGROUND: Prior meta-analysis studies showed that direct oral anticoagulants (DOAs) are as effective and safe as warfarin for the prevention of recurrences in patients with venous thrombo-embolism(VTE) and cancer. However, randomized studies also showed that low-molecular-weight-heparin (LMWH) performs better than warfarin in subjects with cancer. We therefore aimed to assess whether, even after pooling data with warfarin and LMWH, the use of DOAs remains safe and effective. METHODS: We performed a meta-analysis of randomized controlled trials with the aim of assessing the efficacy and safety of DOAs in patients with VTE and cancer...
December 27, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28062018/atrial-fibrillation-in-a-structurally-normal-heart-during-pregnancy-a-review-of-cases-from-a-registry-and-from-the-literature
#12
Nadine Sauvé, Évelyne Rey, Annabelle Cumyn
OBJECTIVES: Atrial fibrillation (AF) in a structurally normal heart is rare during pregnancy. We wished to use our experience to expand the literature on the causes and management of this condition. METHODS: All members of Groupe d'Étude en Médecine Obstétricale du Québec (GÉMOQ) were invited to record cases of AF in a structurally normal heart during pregnancy to the group's Registry. We searched Medline, PubMed, and Google Scholar (1946 to 15 April 2016) for relevant articles using the key words "atrial fibrillation" and "pregnancy...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28061983/the-use-of-novel-oral-anticoagulants-in-cancer-patients-with-venous-thromboembolism
#13
REVIEW
Stamatis J Karakatsanis, Aikaterini Roumpi, Konstantinos N Syrigos
Venous thromboembolism (VTE) is not uncommon among patients with cancer and is one of the major causes of mortality and morbidity. Treatment with low-molecular-weight heparin (LMWH) is effective, yet accompanied by the need for daily administration of injections for a prolonged time and (even rarely) thrombocytopenia. The discovery of novel oral anticoagulants (NOACs) was based on an effort to improve the pharmacodynamic and pharmacokinetic properties of previous generation anticoagulants while maintaining efficacy without the need for daily subcutaneous administration and frequent laboratory monitoring...
December 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/28057540/low-molecular-weight-heparin-coated-and-montelukast-filled-inhalable-particles-a-dual-drug-delivery-system-for-combination-therapy-in-asthma
#14
Brijeshkumar Patel, Jahidur Rashid, Nilesh Gupta, Fakhrul Ahsan
Montelukast, a cysteinyl leukotriene type 1 receptor antagonist, exhibits secondary anti-inflammatory properties when used at higher concentrations. Low molecular weight heparin (LMWH) evokes pronounced anti-inflammatory effects by interrupting leukocyte adhesion and migration. We hypothesized that inhalable particles containing montelukast plus LMWH release both drugs in a sustained fashion and protect the lungs against allergen-induced inflammation. Large porous particles of montelukast and LMWH were prepared using a double-emulsion-solvent-evaporation method...
January 2, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28057056/right-iliac-vein-thrombosis-mimicking-acute-appendicitis-in-pregnancy-a-case-report
#15
Desmond Aroke, Benjamin Momo Kadia, Christian Akem Dimala, Ndemazie Nkafu Bechem, Larry Tangie Ngek, Simeon Pierre Choukem
BACKGROUND: Right iliac vein thrombosis is uncommon in pregnancy. Nonetheless, when it does occur, its presentation could be very unspecific with important diagnostic challenges and this could have negative therapeutic consequences especially in a resource limited setting. CASE PRESENTATION: The historical, clinical and laboratory data of a 30 year old G2P1001 woman of African ethnicity at 11 weeks of gestation pointed towards a right iliac vein thrombosis missed for an acute appendicitis with subsequent appendectomy and failure to cure...
January 3, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28056526/comparison-of-low-molecular-weight-heparins-prepared-from-bovine-heparins-with-enoxaparin
#16
Xinyue Liu, Kalib St Ange, Jawed Fareed, Debra Hoppensteadt, Walter Jeske, Ahmed Kouta, Lianli Chi, Caijuan Jin, Yongsheng Jin, Yiming Yao, Robert J Linhardt
Heparin and its low-molecular-weight heparin (LMWH) derivatives are widely used clinical anticoagulants. These drugs are critical for the practice of medicine in applications including kidney dialysis, cardiopulmonary bypass, and in the management of venous thromboembolism. Currently, these drugs are derived from livestock, primarily porcine intestine. The worldwide dependence on a single animal species has made the supply chain for this critical drug quite fragile, leading to the search for other sources of these drugs, including bovine tissues such as bovine intestine or lung...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28054894/a-rare-case-of-a-pedicled-mobile-thrombus-in-right-atrium
#17
Xiaodong Li, Liping Chen, Xiumei Duan, Xiaocong Wang
Pedicled mobile thrombus in the right atrium is an extremely rare condition. Here, we described a case of a 42-year-old male hospitalized with complaints of chest pain and hemoptysis. Computed tomographic angiography of the pulmonary artery showed signs of embolism, and thoracic echocardiography indicated a pedicled mobile cloudy echo in the right atrium, which was initially suspected to be a myxoma. However, it was confirmed to be a thrombus by histopathological examination. Postoperatively, the patient was treated with anticoagulant therapy comprising of low molecular heparin and warfarin, and the patient recovered well...
2, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/28054341/intermittent-pneumatic-compression-in-combination-with-low-molecular-weight-heparin-in-the-prevention-of-venous-thromboembolic-events-in-esophageal-cancer-surgery
#18
Kevin Parry, Amir-Hossein Sadeghi, Sylvia van der Horst, Jan Westerink, Jelle P Ruurda, Richard van Hillegersberg
INTRODUCTION: Aim of this study was to evaluate the use of Intermittent Pneumatic Compression (IPC) in the prevention of symptomatic venous thromboembolic events (VTE) in patients undergoing esophagectomy for cancer. METHODS: From a prospective database, all patients operated between 2010 and 2014 received IPC in addition to LMWH and were compared to a historical cohort of patients treated LMWH only (2004-2009). RESULTS: Of the 313 included patients, 195 (62%) received IPC...
January 5, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28052451/a-clinical-study-on-low-molecular-weight-heparin-infusion-as-anticoagulation-for-nocturnal-home-haemodialysis
#19
Steve Siu-Man Wong, Wai-Yan Lau, Man-Luen Ng, Shuk-Yin Chan, So-Fan Chan, Ping-Kwan Chan, Ching-Kit Wan, Yuk-Lun Cheng
AIM: This study was conducted to evaluate low-molecular weight heparin (LMWH) as anticoagulation for nocturnal home haemodialysis (NHHD). Whilst its longer half-life may cause drug accumulation in frequent dialysis, the essential need of a supplementary intra-dialytic bolus for the sleeping patients also renders LMWH's use impractical. METHODS: The recruited patients, who were on alternate-day 8-hour haemodialysis, were randomized to receive either nadroparin or unfractionated heparin (UFH) for a week...
January 4, 2017: Nephrology
https://www.readbyqxmd.com/read/28052124/prevalence-of-atrial-fibrillation-and-antithrombotic-therapy-in-hemodialysis-patients-cross-sectional-results-of-the-vienna-investigation-of-atrial-fibrillation-and-thromboembolism-in-patients-on-hemodialysis-vivaldi
#20
Oliver Königsbrügge, Florian Posch, Marlies Antlanger, Josef Kovarik, Renate Klauser-Braun, Josef Kletzmayr, Sabine Schmaldienst, Martin Auinger, Günther Zuntner, Matthias Lorenz, Ella Grilz, Gerald Stampfel, Stefan Steiner, Ingrid Pabinger, Marcus Säemann, Cihan Ay
BACKGROUND: Atrial fibrillation (AF) adds significant risk of stroke and thromboembolism in patients on hemodialysis (HD). The aim of this study was to investigate the prevalence of AF in a population-based cohort of HD patients and practice patterns of antithrombotic therapy for stroke prevention in AF. METHODS: The Vienna InVestigation of AtriaL fibrillation and thromboembolism in patients on hemodialysis (VIVALDI), an ongoing prospective observational cohort study, investigates the prevalence of AF and the risk of thromboembolic events in HD patients in Vienna, Austria...
2017: PloS One
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