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https://www.readbyqxmd.com/read/28821726/the-switching-of-strong-spin-wave-beams-in-patterned-garnet-films
#1
R Gieniusz, P Gruszecki, M Krawczyk, U Guzowska, A Stognij, A Maziewski
The application of spin waves in communication with information encoded in amplitude and phase could replace or enhance existing microelectronic and microwave devices with significantly decreased energy consumption. Spin waves (SW) are usually transported in a magnetic material shaped to act as a waveguide. However, the implementation of SW transport and switching in plane homogeneous magnetic films and running as a narrow beam with a small divergence angle still present a challenge. We propose a realization of a strong SW switchers based on a patterned yttrium iron garnet (YIG) film that could serve as a magnonic fundamental building block...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28812436/the-mechanism-of-protective-effect-of-crocin-against-liver-mitochondrial-toxicity-caused-by-arsenic-iii
#2
Bahareh Sadat Yousefsani, Jalal Pourahmad, Hossein Hosseinzadeh
In this study, we want to understand whether crocin could prevent mitochondrial damage caused by As III. For this purpose, we determined different mitochondrial toxicity endpoints caused by As III. We evaluated mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse, mitochondrial outer membrane integrity and cytochrome c release. Our results showed that pretreatment with crocin at a concentration of 25 µg/ml significantly (P < 0.001) reduced As III induced mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse and mitochondrial swelling...
August 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28811944/successful-resuscitation-of-a-patient-with-life-threatening-metabolic-acidosis-by-hemodialysis-a-case-of-ethylene-glycol-intoxication
#3
Ikuyo Narita, Michiko Shimada, Norio Nakamura, Reiichi Murakami, Takeshi Fujita, Wakako Fukuda, Hirofumi Tomita
BACKGROUND: Ethylene glycol intoxication causes severe metabolic acidosis and acute kidney injury. Fomepizole has become available as its antidote. Nevertheless, a prompt diagnosis is not easy because patients are often unconscious. Here we present a case of ethylene glycol intoxication who successfully recovered with prompt hemodialysis. CASE PRESENTATION: A 52-year-old Japanese male was admitted to a local hospital due to suspected food poisoning. The patient presented with nausea and vomiting, but his condition rapidly deteriorated, with worsening conscious level, respiratory distress requiring mechanical ventilation, hypotension, and severe acute kidney injury...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28809548/reaction-of-dimethyl-trisulfide-with-hemoglobin
#4
Xinmei Dong, Lorand Kiss, Ilona Petrikovics, David E Thompson
Dimethyl trisulfide (DMTS) is a promising antidotal candidate for cyanide intoxication. DMTS acts as a sulfur donor in the conversion of cyanide to the less-toxic thiocyanate. The alternate reaction pathways of DMTS in the blood are not well understood. We report changes in the hemoglobin absorption spectrum upon reaction with DMTS. These changes closely match those induced by the known methemoglobin former, sodium nitrite. The kinetics of methemoglobin formation with DMTS are slower than with sodium nitrite...
August 15, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28808918/idarucizumab-in-dabigatran-treated-patients-with-acute-ischemic-stroke-receiving-alteplase-a-systematic-review-of-the-available-evidence
#5
REVIEW
Slaven Pikija, Laszlo K Sztriha, J Sebastian Mutzenbach, Stefan M Golaszewski, Johann Sellner
BACKGROUND AND PURPOSE: Current guidelines do not recommend the use of intravenous recombinant tissue plasminogen activator in patients with acute ischemic stroke who receive direct oral anticoagulants. While the humanized monoclonal antibody idarucizumab can quickly reverse the anticoagulant effects of the thrombin inhibitor dabigatran, safety data for subsequent tissue plasminogen activator treatment are sparse. Here, we review current knowledge about dabigatran reversal prior to systemic reperfusion treatment in acute ischemic stroke...
August 14, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28806236/the-antidote-to-indifference-is-costly
#6
Jeanine Young-Mason
No abstract text is available yet for this article.
September 2017: Clinical Nurse Specialist CNS
https://www.readbyqxmd.com/read/28801325/aluminium-phosphide-poisoning-with-severe-cardiac-dysfunction-and-the-role-of-digoxin
#7
Khalid Hamid Changal, Muzamil Latief, Manzoor Parry, Farhat Abbas
Aluminium phosphide (ALP) is a common cause of suicidal poisoning in India where it is easily available and commonly known as 'rice tablet'. In rural areas of India, it is still used to protect rice and stored grains from rodents and pests. (1) There is no specific antidote for phosphide poisoning and treatment involves meticulous supportive care. Ingestion can lead to severe cardiac suppression and cardiogenic shock. For patients poisoned with ALP who continue to have refractory shock with persistent myocardial suppression despite the use of adrenergic inotropic agents, the addition of digoxin may be beneficial...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28800377/antidote-to-cannabinoid-intoxication-inverse-cannabinoid-receptor-one-cb1-agonism-by-n-piperidin-1-yl-5-4-iodophenyl-1-2-4-dichlorophenyl-4-methyl-1h-pyrazole-3-carboxamidse-am251-reverses-the-hypothermic-effects-of-cannabinoid-receptor-one-agonism-by-1-naphthalenyl
#8
Gareth Pryce, David Baker
BACKGROUND & PURPOSE: Cannabis is a recreational drug leading to intoxication, due to cannabinoid receptor one (CB1 ) stimulation. However, more recently herbs mixed with synthetic cannabinoids sometimes known as "Spice" and "Black Mamba" have been increasing used and their high CB1 receptor affinity means not only marked intoxication, but life-threatening complications and an increasing number of deaths. Whilst many studies have indicated that prophylactic CB1 receptor antagonism can block cannabimimetic effects in animals and humans...
August 11, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28790786/direct-acting-oral-anticoagulant-bench-to-bedside
#9
REVIEW
D S Chadha, P Bharadwaj
Vitamin K antagonists are an effective group of oral anticoagulants. However because of genetic variability in their metabolism and multiple food and drug interactions, these drugs have narrow therapeutic window with unpredictable anticoagulant effects requiring constant monitoring. Several newer direct acting oral anticoagulants have been approved for prevention of stroke in patients with nonvalvular atrial fibrillation and treatment or prevention of venous thromboembolism. The direct acting oral anticoagulants include the direct thrombin inhibitor (dabigatran) and the factor Xa inhibitors (rivaroxaban, apixaban, and edoxaban)...
July 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28789869/stress-induced-eating-and-the-relaxation-response-as-a-potential-antidote-a-review-and-hypothesis
#10
REVIEW
Tasmiah Masih, James A Dimmock, Elissa S Epel, Kym J Guelfi
There is an accumulating body of evidence to indicate that stress leads to the consumption of unhealthy, energy-dense, palatable food, potentially contributing to the alarming global prevalence of chronic diseases, including obesity. However, comparatively little research has been devoted to addressing how best to remedy this growing problem. We provide an overview of the influence of stress on dietary intake, and then explore the novel, yet simple, possibility that regular elicitation of the relaxation response may effectively reduce stress-induced eating via both physiological neuroendocrine and reward pathways and psychological pathways involving emotion regulation, and habitual coping...
August 5, 2017: Appetite
https://www.readbyqxmd.com/read/28789699/oral-pyridoxine-can-substitute-for-intravenous-pyridoxine-in-managing-patients-with-severe-poisoning-with-isoniazid-and-rifampicin-fixed-dose-combination-tablets-a-case-report
#11
M D S A Dilrukshi, C A P Ratnayake, C A Gnanathasan
BACKGROUND: Fixed drug combination of isoniazid and rifampicin is a rare cause of poisoning even in endemic countries for tuberculosis infection. Severe poisoning can cause severe morbidity and mortality if not treated promptly. Though intravenous pyridoxine is the preferred antidote for severe standard isoniazid poisoning it is not freely available even in best of care centers. We describe a case of severe poisoning with fixed drug combination of isoniazid and rifampicin successfully managed with oral pyridoxine at national hospital of Sri Lanka...
August 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28783306/efficient-modulation-of-spin-waves-in-two-dimensional-octagonal-magnonic-crystal
#12
Samiran Choudhury, Saswati Barman, YoshiChika Otani, Anjan Barman
Efficient tunability of magnonic spectra is demonstrated in two-dimensional ferromagnetic antidot lattices with different lattice constants arranged in the octagonal lattice which can be considered as quasi-periodic magnonic crystals due to the presence of broken translational symmetry. The precessional dynamics of these samples are investigated in the frequency domain with the help of broadband ferromagnetic resonance spectrometer. A rich variation in the spin wave spectra is observed with the variation of lattice constant as well as the strength and orientation of the bias magnetic field...
August 7, 2017: ACS Nano
https://www.readbyqxmd.com/read/28783115/a-novel-surface-plasmon-resonance-biosensor-for-the-rapid-detection-of-botulinum-neurotoxins
#13
Kruti Patel, Shmuel Halevi, Paul Melman, John Schwartz, Shuowei Cai, Bal Ram Singh
Botulinum neurotoxins (BoNTs) are Category A agents on the NIAID (National Institute of Allergy and Infectious Diseases) priority pathogen list owing to their extreme toxicity and the relative ease of production. These deadly toxins, in minute quantities (estimated human i.v. lethal dose LD50 of 1-2 ng/kg body weight), cause fatal flaccid paralysis by blocking neurotransmitter release. The current gold standard detection method, the mouse-bioassay, often takes days to confirm botulism. Furthermore, there are no effective antidotes known to reverse the symptoms of botulism, and as a result, patients with severe botulism often require meticulous care during the prolonged paralytic illness...
August 7, 2017: Biosensors
https://www.readbyqxmd.com/read/28782153/n-acetylcysteine-and-prednisolone-treatment-improved-serum-biochemistries-in-suspected-flupirtine-cases-of-severe-idiosyncratic-liver-injury
#14
Jürgen Borlak, Florian van Bömmel, Thomas Berg
BACKGROUND & AIMS: The analgesic flupirtine has been linked to cases of severe idiosyncratic drug-induced liver injury (sFILI). We therefore examined whether N-acetylcysteine (NAC) and glucocorticoid therapy is effective in the management of sFILI. METHODS: In a retrospective cohort study efficacy of NAC-infusion and oral prednisolone treatments on liver-function-tests (LFTs) and clinical outcome of 21 sFILI cases was evaluated by comparing it to an external cohort of 30 sFILI cases not receiving the antidote...
August 7, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28779994/the-iron-chelating-agent-deferoxamine-detoxifies-fe-salen-induced-cytotoxicity
#15
Masanari Umemura, Jeong-Hwan Kim, Haruki Aoyama, Yujiro Hoshino, Hidenobu Fukumura, Rina Nakakaji, Itaru Sato, Makoto Ohtake, Taisuke Akimoto, Masatoshi Narikawa, Ryo Tanaka, Takayuki Fujita, Utako Yokoyama, Masataka Taguri, Satoshi Okumura, Motohiko Sato, Haruki Eguchi, Yoshihiro Ishikawa
Iron-salen, i.e., μ-oxo-N,N'-bis(salicylidene)ethylenediamine iron (Fe(Salen)) was a recently identified as a new anti-cancer compound with intrinsic magnetic properties. Chelation therapy has been widely used in management of metallic poisoning, because an administration of agents that bind metals can prevent potential lethal effects of particular metal. In this study, we confirmed the therapeutic effect of deferoxamine mesylate (DFO) chelation against Fe(Salen) as part of the chelator antidote efficacy. DFO administration resulted in reduced cytotoxicity and ROS generation by Fe(Salen) in cancer cells...
July 25, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28775316/efficient-functional-neutralization-of-lethal-peptide-toxins-in-vivo-by-oligonucleotides
#16
Tarek Mohamed Abd El-Aziz, Corinne Ravelet, Jordi Molgo, Emmanuelle Fiore, Simon Pale, Muriel Amar, Sawsan Al-Khoury, Jérôme Dejeu, Mahmoud Fadl, Michel Ronjat, Germain Sotoing Taiwe, Denis Servent, Eric Peyrin, Michel De Waard
Medical means to save the life of human patients affected by drug abuse, envenomation or critical poisoning are currently limited. While the compounds at risks are most often well identified, particularly for bioterrorism, chemical intervention to counteract the toxic effects of the ingested/injected compound(s) is restricted to the use of antibodies. Herein, we illustrate that DNA aptamers, targeted to block the pharmacophore of a poisonous compound, represent a fast-acting and reliable method of neutralization in vivo that possesses efficient and long-lasting life-saving properties...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28766237/the-toxicology-investigators-consortium-case-registry-the-2016-experience
#17
Lynn A Farrugia, Sean H Rhyee, Diane P Calello, Sharan L Campleman, Anne M Riederer, Hannah R Malashock, Anthony Pizon, Timothy Wiegand, Paul M Wax, Jeffrey Brent
The Toxicology Investigators Consortium (ToxIC) Case Registry was established by the American College of Medical Toxicology in 2010. The Registry contains data from participating sites with the agreement that all bedside medical toxicology consultations will be entered. Currently, 83% of accredited medical toxicology fellowship programs in the USA participate. The Registry continues to grow each year, and as of 31 December 2016, a new milestone was reached, with more than 50,000 cases reported since its inception...
August 1, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28764723/systematic-review-on-traditional-medicinal-plants-used-for-the-treatment-of-malaria-in-ethiopia-trends-and-perspectives
#18
REVIEW
Getachew Alebie, Befikadu Urga, Amha Worku
BACKGROUND: Ethiopia is endowed with abundant medicinal plant resources and traditional medicinal practices. However, available research evidence on indigenous anti-malarial plants is highly fragmented in the country. The present systematic review attempted to explore, synthesize and compile ethno-medicinal research evidence on anti-malarial medicinal plants in Ethiopia. METHODS: A systematic web search analysis and review was conducted on research literature pertaining to medicinal plants used for traditional malaria treatment in Ethiopia...
August 1, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28761027/five-year-epidemiological-trends-for-chemical-poisoning-in-jeddah-saudi-arabia
#19
Sami Hamdan Alzahrani, Nahla Khamis Ibrahim, Mohammed Abdel Elnour, Ali Hassan Alqahtani
BACKGROUND: Poisoning is a significant global public health challenge in terms of morbidity and mortality. We conducted this study because of the lack of large population-based studies on chemical poisoning in Saudi Arabia. OBJECTIVE: Describe epidemiological trends, associated factors, and outcomes of chemical poisoning cases reported to the Jeddah Health Affairs Directorate, Saudi Arabia. DESIGN: Descriptive, retrospective medical record review...
July 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28757497/on-anecdote-and-antidotes-poison-trials-in-sixteenth-century-europe
#20
Alisha Rankin
This article describes the use of poison trials, in which an animal or a condemned criminal was poisoned, to test antidotes in sixteenth-century Europe. In contrast to most drug testing in medieval and early modern Europe, which was gathered in the normal course of therapeutic experience, the poison trial was a contrived, deliberate event. I argue that poison trials had an important function in both medical testing and medical writing in the period between 1524-1580. While poison trials dated back to antiquity, they tended to be described in medieval texts as theoretical possibilities rather than empirical tests that had already occurred...
2017: Bulletin of the History of Medicine
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