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https://www.readbyqxmd.com/read/28445845/the-capacity-and-effectiveness-of-diosmectite-and-charcoal-in-trapping-the-compounds-causing-the-most-frequent-intoxications-in-acute-medicine-a-comparative-study
#1
Michaela Mináriková, Veronika Fojtikova, Eliška Vyskočilová, Jan Sedláček, Milan Šikut, Lucie Borek-Dohalska, Marie Stiborová, Marketa Martinkova
The aim of the study was to compare the adsorption ability of two adsorbent materials, namely diosmectite and activated charcoal towards selected model compounds that are most commonly involved in acute intoxication. Eleven model compounds were selected: acetylsalicylic acid, α-amanitin, amlodipine, digoxin, phenobarbital, ibuprofen, imipramine, carbamazepine, oxazepam, promethazine, and theophylline. Of the tested compounds, promethazine and imipramine were the most effectively adsorbed to diosmectite. Their adsorption to diosmectite (0...
April 17, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28435120/the-role-of-platelets-in-hemostasis-and-the-effects-of-snake-venom-toxins-on-platelet-function
#2
REVIEW
Mayara Ribeiro de Queiroz, Bruna Barbosa de Sousa, Déborah Fernanda da Cunha Pereira, Carla Cristine Neves Mamede, Mariana Santos Matias, Nadia Cristina Gomes de Morais, Júnia de Oliveira Costa, Fábio de Oliveira
The human body has a set of physiological processes, known as hemostasis, which keeps the blood fluid and free of clots in normal vessels; in the case of vascular injury, this process induces the local formation of a hemostatic plug, preventing hemorrhage. The hemostatic system in humans presents complex physiological interactions that involve platelets, plasma proteins, endothelial and subendothelial structures. Disequilibrium in the regulatory mechanisms that control the growth and the size of the thrombus is one of the factors that favors the development of diseases related to vascular disorders such as myocardial infarction and stroke, which are among the leading causes of death in the western world...
April 20, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28433767/temporal-dynamics-of-human-excreted-pollutants-in-wastewater-treatment-plant-influents-toward-a-better-knowledge-of-mass-load-fluctuations
#3
Thomas Thiebault, Laëtitia Fougère, Emilie Destandau, Maxime Réty, Jérémy Jacob
The occurrence of 25 drug target residues (illicit drugs or pharmaceutically active compounds) was investigated during 85 consecutive days in the influents of a wastewater treatment plant in the Region Centre-Val de Loire, France. This long tracking period allowed a better understanding of the patterns affecting the occurrence of this type of contaminants. Among them, 2 were never detected (i.e. heroin and amphetamine). Concerning illicit drugs two patterns were found. Cocaine and ecstasy median loads varied considerably between weekdays and weekend days (i...
April 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28433637/inhibition-of-pro-inflammatory-enzymes-by-medicinal-plants-from-the-argentinean-highlands-puna
#4
Romina Torres-Carro, María Inés Isla, Samanta Thomas-Valdes, Felipe Jiménez-Aspee, Guillermo Schmeda-Hirschmann, María Rosa Alberto
ETHNOPHARMACOLOGICAL RELEVANCE: Human groups in the Argentinean Andes highlands (Puna) selected native plants as anti-inflammatory agents. The indications of use are mainly to relieve pain, in infusions, ethanolic extracts or plasters. AIM OF THE STUDY: The objective of the study was to assess the effect of hydroalcoholic extracts from native highland plants as anti-inflammatory according to the traditional indications of use. The chemical profile of the three most active species was analyzed by HPLC-ESI-MS to get in insight into the constituents and the effects observed, according to the ethnopharmacological information...
April 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28429213/effect-of-compound-sbt-828-a-new-indole-derivative-exhibiting-antiaggregant-activity-on-the-prostacyclin-thromboxane-a2-balance
#5
A F Kucheryavenko, A A Spasov, M Tian, K F Suzdalev
We investigated the effect of a new indole derivative Sbt-828 with antiaggregant properties on prostacyclin-generating activity of the vascular wall and thromboxane A2 level in platelets of intact rats. The substance under study did not affect prostacyclin production by the vascular wall and significantly reduced thromboxane A2 level, being superior to the reference drug acetylsalicylic acid by 1.6 times, as seen from reduced malonic dialdehyde level in the thrombin-induced rat platelets.
April 20, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28429121/renovascular-hypertension-results-in-adulthood-of-renal-autotransplantation-performed-in-children
#6
Bertrand Chavent, Ambroise Duprey, Marie-Pierre Lavocat, Christine Fichtner, Anne-Marie Beraud, Jean-Noel Albertini, Jean-Pierre Favre, Nicolas Maillard, Xavier Barral
BACKGROUND: This study describes the long-term results of renal autotransplantation for renovascular hypertension performed in children who are now 21 years of age or older. METHODS: Sixteen children (4 boys, 12 girls) with a mean age of 11.2 years at the time of the procedure underwent ex-vivo surgery at the university hospital of Saint-Etienne between 1992 and 2008. Acetylsalicylic acid was used for antiplatelet therapy in the postoperative period, without routine anticoagulation...
April 20, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28425247/meloxicam-and-diclofenac-do-not-change-vegf-and-pdgf-abserum-levels-of-platelet-rich-plasma
#7
Burkay Utku, Gürhan Dönmez, Gülriz Erişgen, Şenay Akin, Haydar Ali Demirel, Feza Korkusuz, Mahmut Nedim Doral
BACKGROUND/AIM: Platelet-rich plasma (PRP) application has gained widespread interest for musculoskeletal injuries. Nonsteroidal antiinflammatory drugs are frequently used in sports medicine before and/or after PRP application. Our study seeks to determine whether serum levels of platelet-derived growth factor-AB (PDGF-AB) and vascular endothelial growth factor (VEGF) levels of PRP would be affected by nonsteroidal antiinflammatory drugs. MATERIALS AND METHODS: Two different final concentrations of diclofenac (0...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28418802/transfer-of-low-dose-aspirin-into-human-milk
#8
Palika Datta, Kathleen Rewers-Felkins, Raja Reddy Kallem, Teresa Baker, Thomas W Hale
BACKGROUND: Aspirin has antipyretic and anti-inflammatory properties and is frequently used by pregnant and lactating women. However, its transfer in human milk when administered at low dose has not been reported. Research aim: This study aimed to evaluate the transfer of acetylsalicylic acid and its metabolite, salicylic acid, into human milk following the use of low dose aspirin. METHODS: In this study, milk samples were collected at 0, 1, 2, 4, 8, 12, and 24 hours from seven breastfeeding women after a steady-state daily dose of 81 mg of aspirin...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28416068/-treatment-with-low-dose-acetylsalicylic-acid-can-reduce-risk-of-pre-eclampsia-in-high-risk-pregnant-women
#9
Line Vedel Käehne, Ingeborg Christina Rørbye Lundin
Pre-eclampsia is a major contributor to perinatal morbidity and mortality. Large studies of high-risk pregnant women have shown reduced risk of developing pre-eclampsia when they are treated with low-dose acetylsalicylic acid in early pregnancy. Treatment is also effective in preventing intrauterine growth restriction, preterm birth and perinatal death. No major side effects, including risk of malformations or miscarriage, are reported. It is important that general practitioners are aware of women who have an increased risk of developing pre-eclampsia, so that treatment with 100 mg of acetylsalicylic acid can be started early in pregnancy...
April 3, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28415434/design-and-development-of-a-hybrid-bioartificial-water-induced-shape-memory-polymeric-material-as-an-integral-component-for-the-anastomosis-of-human-hollow-organs
#10
Siriana Paonessa, Niccoletta Barbani, Elisa Cibrario Rocchietti, Claudia Giachino, Caterina Cristallini
A large number of pathologies require the resection of the bowel and anastomoses to rejoin the two remaining stumps to regain lumen patency. Various materials have been used to rejoin one bowel end to the other such as catgut, stainless steel, and absorbable sutures. The present method for anastomosis surgery uses an entero-entero anastomosis (EEA) circular stapler with only a staple line. This method can have some drawbacks, such as intracellular fluid leakage and local inflammations. The aim of this study is to design and develop a novel bioartificial polymer with a ring shape made of polyvinyl alcohol (PVA) and gelatin (80/20 ratio (w/w)) loaded both directly with acetylsalicylic acid and with nanoparticles incorporating the same drug to reduce local inflammation even for a prolonged period of time...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28410506/inhibitory-effect-of-campomanesia-xanthocarpa-in-platelet-aggregation-comparison-and-synergism-with-acetylsalicylic-acid
#11
Juliana Soares Otero, Gabriela Elisa Hirsch, Jonatas Zeni Klafke, Fernando Garcez Porto, Amanda Spring de Almeida, Sabrina Nascimento, Aline Schmidt, Brenda da Silva, Roberta Lelis Dias Pereira, Mônica Jaskulski, Mariana Migliorini Parisi, Naiara Dos Santos Guarda, Rafael Noal Moresco, Carlos Alberto Mayora Aita, Paulo Ricardo Nazário Viecili
BACKGROUND AND AIMS: Cardiovascular diseases of thrombotic origin are related to high mortality and standard therapeutic agent used in this case is acetylsalicylic acid (ASA), but serious adverse events may occur. However, recent data has suggested the plant Campomanesia xanthocarpa has antiplatelet activity and could be a viable alternative. In this study we investigated the effects of the encapsulated powder of this plant in human platelet aggregation. METHODS: 23 healthy subjects were randomly divided into three groups: (1) ASA (100mg), (2) C...
March 23, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28406726/role-of-heterotrimeric-g-proteins-in-platelet-activation-and-clot-formation-in-platelets-treated-with-integrin-%C3%AE-iib%C3%AE-3-inhibitor
#12
Ivan Budnik, Boris Shenkman, Hagit Hauschner, Isaac Zilinsky, Naphtali Savion
Mechanisms of platelet activation are triggered by thrombin, adenosine diphosphate (ADP), epinephrine, thromboxane A2, and other soluble agonists which induce signaling via heterotrimeric Gαq, Gαi, and Gα12/13 proteins. We have undertaken a study addressing the contribution of these G proteins to platelet activation and clot formation in the presence of eptifibatide, thus excluding outside-in signaling provided by integrin αIIbβ3-fibrinogen engagement. Selective and combined activation of the G proteins was achieved by using combinations of platelet agonists and inhibitors...
April 13, 2017: Platelets
https://www.readbyqxmd.com/read/28400236/synthesis-antiplatelet-and-antithrombotic-activities-of-resveratrol-derivatives-with-no-donor-properties
#13
Luiz Antonio Dutra, Jéssica Frade O Guanaes, Nadine Johmann, Maria Elisa Lopes Pires, Chung Man Chin, Sisi Marcondes, Jean Leandro Dos Santos
Resveratrol (RVT) is a stilbene with a protective effect on the cardiovascular system; however, drawbacks including low bioavailability and fast metabolism limit its efficacy. In this work we described new resveratrol derivatives with nitric oxide (NO) release properties, ability to inhibit platelet aggregation and in vivo antithrombotic effect. Compounds (4a-f) were able to release NO in vitro, at levels ranging from 24.1% to 27.4%. All compounds (2a-f and 4a-f) have exhibited platelet aggregation inhibition using as agonists ADP, collagen and arachidonic acid...
April 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28387027/establishment-of-reference-ranges-and-evaluation-of-in-vitro-concentration-dependent-platelet-inhibition-by-acetylsalicylic-acid-for-multiple-electrode-impedance-aggregometry-in-healthy%C3%A2-dogs
#14
J M Haines, P M Lee, R M Hegedus, J K Hwang, M H Court
Acetylsalicylic acid (ASA, aspirin) is an antiplatelet medication used for prevention of thromboembolism. Effects of ASA appear to vary widely between dogs, but the underlying mechanisms are not understood. The Multiplate analyzer is a newer form of whole-blood impedance aggregometry recently validated for use in healthy dogs. A method utilizing this instrument to measure ASA effects on platelet function has not been established. The goals of this study were to establish reference ranges for the Multiplate in healthy dogs and secondly, to develop a technique to determine the in vitro concentration of ASA needed to cause 50% inhibition of platelet aggregation (IC50)...
April 6, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28375836/childhood-primary-large-vessel-cns-vasculitis-single-centre-experience-and-review-of-the-literature
#15
Sonja Walsh, Ralf Knöfler, Gabriele Hahn, Judith Lohse, Reinhard Berner, Sebastian Brenner, Martin Smitka, Maja von der Hagen, Christian M Hedrich
Ischaemic brain injuries are rare conditions in the paediatric age group. Main causes include non-arteriosclerotic arteriopathies, which in childhood usually result from primary vasculitis of large or small vessels and lead to impaired perfusion and subsequent ischaemic brain lesions. In accordance with the nomenclature of systemic forms, CNS vasculitis is subdivided into groups, based on the size of affected vessels: angiography-positive primary angiitis of medium sized and large vessels (pPACNS), and angiography-negative angiitis of small vessels (svPACNS)...
March 28, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28364801/sulfated-lentinan-induced-mitochondrial-dysfunction-leads-to-programmed-cell-death-of-tobacco-by-2-cells
#16
Jie Wang, Yaofeng Wang, Lili Shen, Yumei Qian, Jinguang Yang, Fenglong Wang
Sulphated lentinan (sLTN) is known to act as a resistance inducer by causing programmed cell death (PCD) in tobacco suspension cells. However, the underlying mechanism of this effect is largely unknown. Using tobacco BY-2 cell model, morphological and biochemical studies revealed that mitochondrial reactive oxygen species (ROS) production and mitochondrial dysfunction contribute to sLNT induced PCD. Cell viability, and HO/PI fluorescence imaging and TUNEL assays confirmed a typical cell death process caused by sLNT...
April 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28361426/antithrombotic-activity-of-dab-15-a-novel-diazepinobenzimidazole-compound
#17
A A Spasov, A F Kucheryavenko, V S Sirotenko, K A Gaidukova, A S Morkovnik, V A Anisimova, L N Divaeva, T A Kuz'menko
Antithrombotic activity of a new orally administered antiplatelet compound DAB-15 was compared to that of acetylsalicylic acid, ticlopidine, and clopidogrel in the experimental model of arterial thrombosis in rats caused by surface application of 50% ferric chloride (III) on the carotid artery. Compound DAB-15 exerted a dose-dependent antithrombotic effect and was superior to acetylsalicylic acid, ticlopidine and clopidogrel by 5, 7, and 4.9 times, respectively (by ED50). This necessitates studying of the action mechanism of this antiplatelet compound with consideration of its influence on different stages of the pathogenesis of platelet aggregation...
March 31, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28361278/cost-effectiveness-of-gastroprotection-with-proton-pump-inhibitors-in-older-low-dose-acetylsalicylic-acid-users-in-the-netherlands
#18
Sek Hung Chau, Reinier L Sluiter, Wietske Kievit, Michel Wensing, Martina Teichert, Jacqueline G Hugtenburg
PURPOSE: The present study aimed to assess the cost effectiveness of concomitant proton pump inhibitor (PPI) treatment in low-dose acetylsalicylic acid (LDASA) users at risk of upper gastrointestinal (UGI) adverse effects as compared with no PPI co-medication with attention to the age-dependent influence of PPI-induced adverse effects. METHODS: We used a Markov model to compare the strategy of PPI co-medication with no PPI co-medication in older LDASA users at risk of UGI adverse effects...
March 30, 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28338589/managing-hip-fracture-and-lower-limb-surgery-in-the-emergency-setting-potential-role-of-non-vitamin-k-antagonist-oral-anticoagulants
#19
William Fisher
Trauma, immobilization, and subsequent surgery of the hip and lower limb are associated with a high risk of developing venous thromboembolism (VTE). Individuals undergoing hip fracture surgery (HFS) have the highest rates of VTE among orthopedic surgery and trauma patients. The risk of VTE depends on the type and location of the lower limb injury. Current international guidelines recommend routine pharmacological thromboprophylaxis based on treatment with heparins, fondaparinux, dose-adjusted vitamin K antagonists and acetylsalicylic acid for patients undergoing emergency HFS; however, not all guidelines recommend pharmacological prophylaxis for patients with lower limb injuries...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28334544/-antiplatelet-thromboprophylaxis-of-arterial-vascular-diseases-and-organovascular-ischemic-diseases
#20
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
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