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https://www.readbyqxmd.com/read/28511448/rectus-sheath-haematoma-secondary-to-enoxaparin-injection-a-rare-case-report
#1
Sidharth Agarwal, Yamanur P Lamani, Bhimanagouda V Goudar, Eshwar B Kalburgi, Bheemappa K Bhavi
Rectus sheath haematoma is a well-documented condition with an elusive diagnosis. It is an uncommon complication of anti-coagulation therapy, which can have a mortality of upto 25%. The patient discussed here is a 40-year-old female who was on Inj. Enoxaparin, who developed severe abdominal pain and hypovolemia after three days of treatment. Ultrasonography and CT scan showed a large rectus sheath haematoma on the right side, which was crossing the midline towards the left side. Inj. Enoxaparin was stopped and the patient was posted for surgery...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28499154/mutation-of-the-kunitz-type-proteinase-inhibitor-domain-in-the-amyloid-%C3%AE-protein-precursor-abolishes-its-anti-thrombotic-properties-in-vivo
#2
Feng Xu, Judianne Davis, Michael Hoos, William E Van Nostrand
INTRODUCTION: Kunitz proteinase inhibitor (KPI) domain-containing forms of the amyloid β-protein precursor (AβPP) inhibit cerebral thrombosis. KPI domain-lacking forms of AβPP are abundant in brain. Regions of AβPP other than the KPI domain may also be involved with regulating cerebral thrombosis. To determine the contribution of the KPI domain to the overall function of AβPP in regulating cerebral thrombosis we generated a reactive center mutant that was devoid of anti-thrombotic activity and studied its anti-thrombotic function in vitro and in vivo...
May 4, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28493022/in-vitro-anti-thrombotic-and-anti-coagulant-properties-of-blacklip-abalone-haliotis-rubra-viscera-hydrolysate
#3
Hafiz Ansar Rasul Suleria, Paul P Masci, Rama Addepalli, Wei Chen, Glenda C Gobe, Simone A Osborne
Abalone viscera contain sulphated polysaccharides with anti-thrombotic and anti-coagulant activities. In this study, a hydrolysate was prepared from blacklip abalone (Haliotis rubra) viscera using papain and bromelain and fractionated using ion exchange and size exclusion chromatography. Hydrolysates and fractions were investigated for in vitro thrombin inhibition mediated through heparin cofactor II (HCII) as well as anti-coagulant activity in plasma and whole blood. On the basis of sulphated polysaccharide concentration, the hydrolysate inhibited thrombin through HCII with an inhibitor concentration at 50% (IC50) of 16...
May 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28479094/integrating-genotypes-in-the-same-tt2r2-score-for-the-prediction-of-anticoagulation-control-in-chinese-patients-with-atrial-fibrillation-on-warfarin
#4
Jia Liu, Nina Wang, Liuan Qin, Jun Liu, Shaozhi Xi, Xuyun Wang, Xiaoqi Li, Yuxiao Zhang, Tong Yin
INTRODUCTION: The SAMe-TT2R2 score has been proposed to predict whether patients with atrial fibrillation (AF) would be well anti-coagulated with warfarin or not. However, it might over-estimate the number of patients under suboptimal warfarin treatment in non-Caucasians. This study was designed to modify the SAMe-TT2R2 score with genotypes and validate it in Chinese AF patients treated with warfarin. MATERIAL AND METHODS: Consented Chinese-Han patients (n=510) with AF under the treatment of warfarin for at least 3months were randomly divided into a derivation (n=310) and a validation cohort (n=200)...
April 29, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28474867/the-response-of-coagulation-and-anti-coagulant-factors-of-elite-athletes-following-acute-resistance-and-high-intensity-interval-exercises
#5
Sedigheh Karampour, Abbas A Gaeini
BACKGROUND: Blood coagulation and fibrinolysis include two vital physiological systems, which are regulated by a balance between activators and inhibitors. The aim of this study is to survey the response of coagulation and anticoagulant factors following acute resistance and high intensity interval exercises. METHODS: This is an experimental study. The statistical sample was an elite group of karate males (aged 22.10±2.76 years, height 175.80±5.43 cm, mass 74...
April 26, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28466118/who-should-be-referred-for-left-atrial-appendage-occlusion-therapy
#6
REVIEW
Sidakpal S Panaich, David R Holmes
Atrial fibrillation (AF) is the most common cardiac arrhythmia affecting approximately 7 million individuals in USA. It is one of the most significant arrhythmias, which accounts for a majority of embolic strokes, especially in elderly individuals. Although oral anti-coagulation is beneficial in lowering the risk of stroke, 1 in 10 patients have a contra-indication to warfarin therapy. Among patients who do tolerate either warfarin or novel oral anticoagulant (NOAC), major or recurrent bleeding, intracranial bleeds, etc...
June 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28456731/different-involvement-of-oat-in-renal-disposition-of-oral-anticoagulants-rivaroxaban-dabigatran-and-apixaban
#7
Yuri Tsuruya, Takeo Nakanishi, Hisakazu Komori, Xinying Wang, Naoki Ishiguro, Tomoko Kito, Kouji Ikukawa, Wataru Kishimoto, Sumito Ito, Olaf Schaefer, Thomas Ebner, Norio Yamamura, Hiroyuki Kusuhara, Ikumi Tamai
This study aimed to investigate the interactions of three anti-coagulants, rivaroxaban, apixaban, and dabigatran, with five human SLC transporters, hOAT1, hOAT3, hOCT2, hOATP1B1, and hOATP1B3. Apixaban inhibited hOAT3, hOATP1B1, and hOATP1B3, and rivaroxaban inhibited hOAT3 and hOATP1B3, with IC50 values of > 20 and >5 μM, respectively. The effect of dabigatran was negligible or very weak, so significant drug interactions at therapeutic doses are unlikely. Specific uptake of rivaroxaban was observed only in human and mouse OAT3-expressing cells...
April 26, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28450662/comparative-serological-investigation-between-cat-and-tiger-blood-for-transfusion
#8
Naris Thengchaisri, Chayakrit Sinthusingha, Surapong Arthitwong, Panpicha Sattasathuchana
Evidence suggests that non-domesticated felids inherited the same AB-erythrocyte antigens as domestic cats. To study the possible compatibility of tiger blood with that of other endangered felidae, blood samples from captive tigers and domestic cats were subjected to in vitro study. The objectives of this study were to (1) identify whether the captive tigers had blood type AB and (2) determine the compatibility between the blood of captive tigers and that of domestic cats with a similar blood type. The anti-coagulated blood with ethylenediaminetetraacetic acid of 30 tigers was examined to determine blood type, and a crossmatching test was performed between tiger and cat blood...
April 28, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28441767/inhibitory-effect-of-triterpenoids-from-panax-ginseng-on-coagulation-factor-x
#9
Lingxin Xiong, Zeng Qi, Bingzhen Zheng, Zhuo Li, Fang Wang, Jinping Liu, Pingya Li
Enzymes involved in the coagulation process have received great attention as potential targets for the development of oral anti-coagulants. Among these enzymes, coagulation factor Xa (FXa) has remained the center of attention in the last decade. In this study, 16 ginsenosides and two sapogenins were isolated, identified and quantified. To determine the inhibitory potential on FXa, the chromogenic substrates method was used. The assay suggested that compounds 5, 13 and 18 were mainly responsible for the anti-coagulant effect...
April 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28432098/inhibitory-effect-of-coumarin-on-syntrophic-fatty-acid-oxidizing-and-methanogenic-cultures-and-biogas-reactor-microbiomes
#10
Denny Popp, Caroline M Plugge, Sabine Kleinsteuber, Hauke Harms, Heike Sträuber
Coumarins are widely found in plants as natural constituents having antimicrobial activity. When considering plants rich in coumarins for biogas production, adverse effects on microorganisms driving the anaerobic digestion process are expected. Furthermore, coumarin derivatives like warfarin, which are used as anti-coagulating medicine, are found in wastewater affecting its treatment. Coumarin as the structure common to all coumarins inhibits the anaerobic digestion process. However, details of this inhibition are still elusive...
April 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28429033/clinics-in-diagnostic-imaging-176-acute-embolic-occlusion-of-the-coeliac-artery
#11
Chinthaka Appuhamy, Justin Kwan, Martin Weng Chin H'ng, Sriram Narayanan, Sundeep Punamiya
A 52-year-old man, who had a background of chronic heart disease and atrial fibrillation, as well as non-compliance with warfarin therapy, presented with a two-week history of worsening upper abdominal pain. Computed tomography mesenteric angiography showed complete embolic occlusion of the coeliac artery with resultant segmental splenic infarction, and thrombus within the left ventricle. A decision was made to proceed with catheter-directed thrombolysis. Subsequent follow-up angiogram at 12 hours showed successful treatment with complete dissolution of the coeliac embolus...
April 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28427942/inhibitory-effects-of-ethyl-pyruvate-on-platelet-aggregation-and-phosphatidylserine-exposure
#12
Wenjin Li, Xinyu Yang, Minyuan Peng, Can Li, Guangfu Mu, Fangping Chen
Ethyl pyruvate (EP) is a stable lipophilic pyruvate derivative. Studies demonstrated that EP shows potent anti-oxidation, anti-inflammatory and anti-coagulant effects. Inflammation and coagulation are closely interacted with platelet activation. However, it is unclear whether EP has anti-platelet effects. Therefore, we investigated the anti-platelet effect of EP in this study in vitro. We found that EP inhibited agonists induced platelets aggregation, ATP release and adhesion to collagen. Flow cytometric analysis revealed that EP inhibited agonist induced platelets PAC-1 binding, as well as P-selectin and CD40L expression...
April 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28418077/therapeutic-protein-deimmunization-by-t-cell-epitope-removal-antigen-specific-immune-responses-in-vitro-and-in-vivo
#13
Saeme Asgari, Azadeh Ebrahim-Habibi, Mehdi Mahdavi, Mohammad Choopani, Hasan Mirzahoseini
Hirudin III is an effective anti-coagulant; however, in 40% of treated patients, a high-titer of anti-Hirudin III IgG antibodies is observed. Development of antibody responses requires the activation of helper T lymphocyte (HTL), which is dependent on peptide epitopes binding to HLA class II molecules. Based on computational prediction softwares, four new mutants of Hirudin III, T4K, S9G, V21G, and V21K, had been designed with the aim of reducing the binding affinity of these HTL epitopes. The constructed mutants have been purified and assayed for bioactivity...
April 18, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28415603/synthesis-and-evaluation-of-anthranilamide-based-derivatives-as-fxa-inhibitors
#14
Changjiang Huang, Wenzhi Wang, Yao Li, Shijun Zhang, Fancui Meng, Weiren Xu, Jing Yuan, Ligong Chen
Factor Xa (FXa) plays a significant role in the blood coagulation cascade and is a promising target for anticoagulation drugs. Three oral FXa inhibitors have been approved by FDA for treating thrombotic diseases. In this study, 43 novel compounds were synthesized anthranilamide-based FXa inhibitors aiming to ameliorate the toxicity of traditional FXa inhibitors in clinic. The data indicated that the compounds 6a, 6a-b, 6a-e, 6k, 6k-a and 6k-b showed remarkable FXa inhibitory activity and excellent selectivity over thrombin in vitro...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28411882/in-vitro-generation-of-interleukin-10-secreting-b-regulatory-cells-from-donor-adipose-tissue-derived-mesenchymal-stem-cells-and-recipient-peripheral-blood-mononuclear-cells-for-potential-cell-therapy
#15
Kunal S Gupte, Aruna V Vanikar, Hargovind L Trivedi, Chetan N Patel, Jignesh V Patel
BACKGROUND: Interleukin-10 secreting B-cells are a major subset of B-regulatory cells (B-regs), commonly recognized as CD19(+)/38(hi)/24(hi)/IL10(+). They carry out immunomodulation by release of specific cytokines and/or cell-to-cell contact. We have generated B-regs in-vitro from donor adipose tissue derived mesenchymal stem cells (AD-MSC) and renal allograft recipient (RAR) peripheral blood mononuclear cells (PBMC) for potential cell therapy. MATERIAL AND METHODS: Mononuclear cells separated by density gradient centrifugation from 50 ml anti-coagulated blood of 15-RAR and respective donors were analysed for baseline B-regs using appropriate antibodies...
February 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28402449/enhancement-of-trophoblast-differentiation-and-survival-by-low-molecular-weight-heparin-requires-heparin-binding-egf-like-growth-factor
#16
Alan D Bolnick, Jay M Bolnick, Hamid-Reza Kohan-Ghadr, Brian A Kilburn, Omar J Pasalodos, Pankaj K Singhal, Jing Dai, Michael P Diamond, D Randall Armant, Sascha Drewlo
STUDY QUESTION: Does low molecular weight heparin (LMWH) require heparin-binding epidermal growth factor (EGF)-like growth factor (HBEGF) signaling to induce extravillous trophoblast differentiation and decrease apoptosis during oxidative stress? SUMMARY ANSWER: LMWH increased HBEGF expression and secretion, and HBEGF signaling was required to stimulate trophoblast extravillous differentiation, increase invasion in vitro and reduce trophoblast apoptosis during oxidative stress...
June 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28394734/optimization-of-bioengineered-heparin-heparan-sulfate-production-for-therapeutic-applications
#17
Megan S Lord, MoonSun Jung, John M Whitelock
Heparin has been used clinically as an anti-coagulant for more than 100 y and the major source of this therapeutic is still animal tissues. Contamination issues in some batches of heparin over 10 y ago have highlighted the need to develop alternative methods of production of this essential drug. (1) Bioengineering heparin by expressing serglycin in mammalian cells is a promising approach that was recently reported by the authors. (2) This addendum explores the approaches that the authors are taking to increase the yield of recombinantly expressed serglycin decorated with heparin/heparan sulfate focusing on cell culture and bioreactor conditions and proposes that the cell microenvironment is a key modulator of heparin biosynthesis...
April 10, 2017: Bioengineered
https://www.readbyqxmd.com/read/28393040/vitreous-haemorrhage-a-population-based-study-of-the-incidence-and-risk-factors-in-taiwan
#18
Ching-Yu Wang, Wai-Man Cheang, De-Kuang Hwang, Ching-Heng Lin
AIM: To report the epidemiology and incidence of vitreous hemorrhage and to evaluate risk factors for patients with vitreous hemorrhage (VH) in Taiwan. METHODS: A retrospective population-based study. Analyzing a sample of one million subjects from all enrollees of the Taiwan Health Insurance programme. All data were obtained from the Taiwan Health Insurance Research Database, which contained patient sex, date of birth, all records of clinical visits and hospitalizations, and diagnosis codes as included in the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28392913/low-molecular-weight-heparin-versus-unfractionated-heparin-in-the-management-of-cerebral-venous-thrombosis-a-systematic-review-and-meta-analysis
#19
REVIEW
Anjum Qureshi, Andrea Perera
INTRODUCTION: There are two main choices of anti-coagulation in cerebral venous thrombosis: Unfractionated heparin versus low molecular weight heparin. A consensus is yet to be reached regarding which agent is optimal. Therefore the aim of this systematic review and meta-analysis was to identify which agent is most effective in treating CVT. METHODS: Databases Pubmed (MEDLINE), Google Scholar and hand-picked references from papers of interest were reviewed. Studies comparing the use of low molecular weight heparin and unfractionated heparin in adult patients with a confirmed diagnosis of cerebral vein thrombosis were selected...
May 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28377232/comparison-of-safety-and-efficacy-of-unfractionated-heparin-versus-bivalirudin-in-patients-undergoing-percutaneous-coronary-intervention
#20
Ahmed Rehmani, Chris Judkins, Alan Whelan, Michael Nguyen, Carl Schultz
BACKGROUND: Anti-platelet and anti-coagulant adjunctive therapies are associated with a clinically significant increased risk of major bleeding. We retrospectively assessed in hospital major adverse clinical events (MACE) and major bleeding in patients undergoing percutaneous coronary intervention (PCI) who received either unfractionated heparin (UFH) or bivalirudin. METHOD: Consecutive patients undergoing PCI for acute coronary syndrome (ACS) at Fremantle Hospital from August 2008 to December 2013 were identified...
February 28, 2017: Heart, Lung & Circulation
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