keyword
MENU ▼
Read by QxMD icon Read
search

Nerve Agent

keyword
https://www.readbyqxmd.com/read/28929435/neuroprotective-effects-of-galantamine-on-nerve-agent-induced-neuroglial-and-biochemical-changes
#1
RamaRao Golime, Meehir Palit, J Acharya, D K Dubey
Neuroprotection from nerve agent such as soman-induced neural damage is a major challenge for existing drugs. Nerve agent exposure can cause many neural effects in survivors arising mainly due to acetylcholinesterase (AChE) inhibition or death within minutes. Unraveling the mechanisms underlying the nerve agent-induced multiple neurological effects is useful to develop better and safe drugs. The present study aimed to understand the molecular response during soman exposure and to evaluate the neuroprotective efficacy of galantamine on nerve agent-induced neurotoxic changes...
September 19, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28924860/facial-nerve-palsy-secondary-to-epstein-barr-virus-infection-of-the-middle-ear-in-pediatric-population-may-be-more-common-than-we-think
#2
Katarina Vogelnik, Aleš Matos
BACKGROUND: Facial nerve palsy is a rare complication of acute otitis media (AOM). The general understanding is that this complication has a bacterial cause although bacteria can be isolated from the middle ear only in approximately two-thirds of cases of AOM. Detection of viral agents from specimens obtained during myringotomy in patients with AOM suggests a possible role of viruses in the etiology of this disease. CASE PRESENTATIONS: We studied 5 otherwise healthy 17- to 27-month-old children who were referred to the Department of Otorhinolaryngology and Cervicofacial Surgery from December 2012 to January 2016 because of AOM and ipsilateral facial nerve palsy...
September 18, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28920852/experimental-transmission-to-a-calf-of-an-isolate-of-spanish-classical-scrapie
#3
Rosa Bolea, Carlos Hedman, Óscar López-Pérez, Belén Marín, Enríc Vidal, Martí Pumarola, Fabien Corbière, Antonio Romero, Bernardino Moreno, Inmaculada Martín-Burriel, Olivier Andréoletti, Juan José Badiola
Multiple theories exist regarding the origin of bovine spongiform encephalopathy (BSE). An early and prominent theory proposed that BSE was the result of the adaptation of sheep scrapie to cattle. The reports to date indicate that the distribution of the pathological prion protein (PrPSc) in experimental bovine scrapie is largely restricted to the central nervous system (CNS). Here, we describe pathological findings in a calf intracerebrally inoculated with a Spanish classical scrapie isolate. While clinical disease was observed 30 months after inoculation and PrPSc was detected in the CNS, the corresponding phenotype differed from that of BSE...
September 18, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28917965/the-development-of-a-butyrylcholinesterase-porous-pellet-for-innovative-detection-of-cholinesterase-inhibitors
#4
Jiří Zeman, David Vetchý, Aleš Franc, Sylvie Pavloková, Vladimír Pitschmann, Lukáš Matějovský
The aim of the presented research was the preparation of an innovative carrier with significantly improved properties for the fast and sensitive detection of cholinesterase inhibitors such as nerve agents. This innovative carrier was in the form of spherical pellets containing different amounts of Neusilin. Neusilin is a synthetic and amorphous form of magnesium aluminometasilicate with a high specific surface area, and the immobilized enzyme butyrylcholinesterase with an activity of 50nkat·g(-1). Pellets were prepared by the extrusion-spheronization method and dried in a hot air oven under two conditions - at 30°C for 72h and at 60°C for 24h...
September 13, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28913645/local-analgesia-in-paediatric-dentistry-a-systematic-review-of-techniques-and-pharmacologic-agents
#5
REVIEW
G Klingberg, K Ridell, S Brogårdh-Roth, M Vall, H Berlin
PURPOSE: To evaluate the evidence supporting effects and adverse effects of local analgesia using different pharmacological agents and injection techniques during dental treatment in children and adolescents aged 3-19 years. METHODS: A systematic literature search of databases including PubMed, Cochrane, and Scopus was conducted in November 2016. The PRISMA-statement was followed. Two review authors independently assessed the selected randomised control trials for risk of bias and quality...
September 14, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28912674/a-mechanistic-understanding-of-axon-degeneration-in-chemotherapy-induced-peripheral-neuropathy
#6
REVIEW
Yusuke Fukuda, Yihang Li, Rosalind A Segal
Chemotherapeutic agents cause many short and long term toxic side effects to peripheral nervous system (PNS) that drastically alter quality of life. Chemotherapy-induced peripheral neuropathy (CIPN) is a common and enduring disorder caused by several anti-neoplastic agents. CIPN typically presents with neuropathic pain, numbness of distal extremities, and/or oversensitivity to thermal or mechanical stimuli. This adverse side effect often requires a reduction in chemotherapy dosage or even discontinuation of treatment...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28910474/atropine-eye-drops-a-proposed-field-expedient-substitute-in-the-absence-of-atropine-autoinjectors
#7
Christopher J Calvano, Robert W Enzenauer, Derek L Eisnor, Robert A Mazzoli
Nerve agents are a threat to military and civilian health. The antidote, atropine sulfate, is delivered by autoinjector, which is a limited resource. We propose the use of 1% atropine ophthalmic solution (supplied commercially in 5mL or 15 mL bottles) via oral, ocular, and intranasal administration as an expedient substitute in austere environments.
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28904684/anaesthetic-management-for-awake-craniotomy-in-brain-glioma-resection-initial-experience-in-military-hospital-mohamed-v-of-rabat
#8
Mohammed Meziane, Abdelghafour Elkoundi, Redouane Ahtil, Miloudi Guazaz, Bensghir Mustapha, Charki Haimeur
The awake brain surgery is an innovative approach in the treatment of tumors in the functional areas of the brain. There are various anesthetic techniques for awake craniotomy (AC), including asleep-awake-asleep technique, monitored anesthesia care, and the recent introduced awake-awake-awake method. We describe our first experience with anesthetic management for awake craniotomy, which was a combination of these techniques with scalp nerve block, and propofol/rémifentanil target controlled infusion. A 28-year-oldmale underwent an awake craniotomy for brain glioma resection...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28904445/epidemiology-of-peripheral-neuropathy-an-indian-perspective
#9
REVIEW
Sweety Trivedi, Alak Pandit, Goutam Ganguly, Shyamal Kumar Das
Peripheral neuropathy (PN) is a common disorder and presents as diagnostic and therapeutic challenge to physicians and neurologists. In epidemiological studies from India from various regions the overall prevalence of PN varied from 5 to 2400 per 10,000 population in various community studies. India is composed of a multiethnic, multicultural population who are exposed to different adverse environmental factors such as arsenic and lead. Use of different chemotherapeutic agents with propensity to affect peripheral nerves, increasing methods of diagnosis of connective tissue disorders and use of immunomodulating drugs, growing aging population is expected to change the spectrum and burden of peripheral neuropathy in the community...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28903494/optimization-of-the-ocular-treatment-following-organophosphate-nerve-agent-insult
#10
Inbal Egoz, Uri Nili, Ettie Grauer, Ariel Gore
Eye exposure to organophosphate (OP) irreversible acetylcholinesterase inhibitors, results in long-term miosis and impaired visual function. The aim of this study was to find an anticholinergic antidote, which would counteract miosis and visual impairment induced by the nerve agents sarin and VX with minimal untoward side-effects. Rat pupil width and light reflex were evaluated from 15 min up to 2 weeks following topical OP exposure with or without topical ocular treatment of atropine or homatropine or with a combined intramuscular treatment of trimedoxime (TMB-4) and atropine (TA)...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28902127/altered-gene-expression-of-rnf34-and-pacap-possibly-involved-in-mechanism-of-exercise-induced-analgesia-for-neuropathic-pain-in-rats
#11
Shintaro Yamaoka, Yusuke Oshima, Hideki Horiuchi, Tadao Morino, Masayuki Hino, Hiromasa Miura, Tadanori Ogata
Despite the availability of several modalities of treatment, including surgery, pharmacological agents, and nerve blocks, neuropathic pain is often unresponsive and sometimes progresses to intractable chronic pain. Although exercise therapy is a candidate for treatment of neuropathic pain, the mechanism underlying its efficacy has not been elucidated. To clarify the molecular mechanism for pain relief induced by exercise, we measured Rnf34 and Pacap mRNA levels in the spinal cord dorsal horn of SNL rats, a model of neuropathic pain...
September 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28894590/trpa1-channel-mediates-organophosphate-induced-delayed-neuropathy
#12
Qiang Ding, Sui Fang, Xueqin Chen, Youxin Wang, Jian Li, Fuyun Tian, Xiang Xu, Bernard Attali, Xin Xie, Zhaobing Gao
The organophosphate-induced delayed neuropathy (OPIDN), often leads to paresthesias, ataxia and paralysis, occurs in the late-stage of acute poisoning or after repeated exposures to organophosphate (OP) insecticides or nerve agents, and may contribute to the Gulf War Syndrome. The acute phase of OP poisoning is often attributed to acetylcholinesterase inhibition. However, the underlying mechanism for the delayed neuropathy remains unknown and no treatment is available. Here we demonstrate that TRPA1 channel (Transient receptor potential cation channel, member A1) mediates OPIDN...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28894304/quantification-of-brain-cholinergic-denervation-in-alzheimer-s-disease-using-pet-imaging-with-18-f-feobv
#13
M Aghourian, C Legault-Denis, J-P Soucy, P Rosa-Neto, S Gauthier, A Kostikov, P Gravel, M-A Bédard
(18)F-fluoroethoxybenzovesamicol (FEOBV) is a new PET radiotracer that binds to the vesicular acetylcholine transporter. In both animals and healthy humans, FEOBV was found sensitive and reliable to characterize presynaptic cholinergic nerve terminals in the brain. It has been used here for we believe the first time in patients with Alzheimer's disease (AD) to quantify brain cholinergic losses. The sample included 12 participants evenly divided in healthy subjects and patients with AD, all assessed with the Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) cognitive scales...
September 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28892361/immunopurification-of-acetylcholinesterase-from-red-blood-cells-for-detection-of-nerve-agent-exposure
#14
Alicia J Dafferner, Lawrence M Schopfer, Gaoping Xiao, John R Cashman, Udaya Yerramalla, Rudolph C Johnson, Thomas A Blake, Oksana Lockridge
Nerve agents and organophosphorus pesticides make a covalent bond with the active site serine of acetylcholinesterase (AChE), resulting in inhibition of AChE activity and toxic symptoms. AChE in red blood cells (RBC) serves as a surrogate for AChE in the nervous system. Mass spectrometry analysis of adducts on RBC AChE could provide evidence of exposure. Our goal was to develop a method of immunopurifying human RBC AChE in quantities adequate for detecting exposure by mass spectrometry. For this purpose we immobilized 3 commercially available anti-human acetylcholinesterase monoclonals (AE-1, AE-2, and HR2) plus 3 new monoclonals...
September 11, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28890980/fast-and-accurate-prediction-of-proton-affinities-revisiting-the-extended-koopmans-theorem-for-protons
#15
Laura Pedraza-González, Jorge Charry, William Quintero, Jorge Alí-Torres, Andrés Reyes
In this work we propose schemes based on the extended Koopmans' theorem for quantum nuclei (eKT), in the framework of the any particle molecular orbital approach (APMO/KT), for the quantitative prediction of gas phase proton affinities (PAs). The performance of these schemes has been tested on a set of 300 organic molecules containing diverse functional groups. The APMO/KT scheme scaled by functional group (APMO/KT-SC-FG) displays an overall mean absolute error of 1.1 kcal mol(-1) with respect to experimental data...
September 11, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28887460/novel-selective-potent-naphthyl-trpm8-antagonists-identified-through-a-combined-ligand-and-structure-based-virtual-screening-approach
#16
Andrea R Beccari, Marica Gemei, Matteo Lo Monte, Nazareno Menegatti, Marco Fanton, Alessandro Pedretti, Silvia Bovolenta, Cinzia Nucci, Angela Molteni, Andrea Rossignoli, Laura Brandolini, Alessandro Taddei, Lorena Za, Chiara Liberati, Giulio Vistoli
Transient receptor potential melastatin 8 (TRPM8), a nonselective cation channel, is the predominant mammalian cold temperature thermosensor and it is activated by cold temperatures and cooling compounds, such as menthol and icilin. Because of its role in cold allodynia, cold hyperalgesia and painful syndromes TRPM8 antagonists are currently being pursued as potential therapeutic agents for the treatment of pain hypersensitivity. Recently TRPM8 has been found in subsets of bladder sensory nerve fibres, providing an opportunity to understand and treat chronic hypersensitivity...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28882597/the-acute-and-chronic-effects-of-intravitreal-anti-vascular-endothelial-growth-factor-injections-on-intraocular-pressure-a-review
#17
REVIEW
Peter Bracha, Nicholas A Moore, Thomas A Ciulla, Darrell WuDunn, Louis B Cantor
The acute and chronic effects of repeated intravitreal anti-vascular endothelial growth factor (VEGF) injections on intraocular pressure (IOP) have not been fully characterized and the development of sustained ocular hypertension could adversely affect patients who are at risk of glaucomatous optic neuropathy. As expected, volume-driven, acute ocular hypertension immediately follows intravitreal injection, but this pressure elevation is generally transient and well-tolerated. Several medications have been investigated to limit acute ocular hypertension following anti-VEGF therapy, but the benefits of pretreatment are not conclusive...
September 4, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28877995/a-neuroprotective-agent-that-inactivates-prodegenerative-trka-and-preserves-mitochondria
#18
Konstantin Feinberg, Adelaida Kolaj, Chen Wu, Natalie Grinshtein, Jonathan R Krieger, Michael F Moran, Lee L Rubin, Freda D Miller, David R Kaplan
Axon degeneration is an early event and pathological in neurodegenerative conditions and nerve injuries. To discover agents that suppress neuronal death and axonal degeneration, we performed drug screens on primary rodent neurons and identified the pan-kinase inhibitor foretinib, which potently rescued sympathetic, sensory, and motor wt and SOD1 mutant neurons from trophic factor withdrawal-induced degeneration. By using primary sympathetic neurons grown in mass cultures and Campenot chambers, we show that foretinib protected neurons by suppressing both known degenerative pathways and a new pathway involving unliganded TrkA and transcriptional regulation of the proapoptotic BH3 family members BimEL, Harakiri,and Puma, culminating in preservation of mitochondria in the degenerative setting...
September 6, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28877873/the-in-vitro-zebrafish-heart-as-a-model-to-investigate-the-chronotropic-effects-of-vapor-anesthetics
#19
Matthew R Stoyek, Michael K Schmidt, Florentin M Wilfart, Roger P Croll, Frank M Smith
In addition to their intended clinical actions, all general anesthetic agents in common use have detrimental intra- and post-surgical side effects on organs and systems including the heart. The major cardiac side effect of anesthesia is bradycardia, which increases the probability of insufficient systemic perfusion during surgery. These side effects also occur in all vertebrate species so far examined, but the underlying mechanisms are not clear. The zebrafish heart is a powerful model for studying cardiac electrophysiology, employing the same pacemaker system and neural control as do mammalian hearts...
September 6, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28875826/current-treatment-options-for-osteoarthritis
#20
Sevdalina Lambova, Walter Hermann, Ulf Müller-Ladner
BACKGROUND: Osteoarthritis (ОА) is the most common joint disease and a leading cause for impaired function and disability with significant treatment costs and socio-economic burden. Despite recent achievements in the knowledge on disease pathogenesis, the treatment is still a challenge and contrary to inflammatory joint diseases, no disease-modifying drugs are currently available for OA. OBJECTIVE: Different response in different localizations of the disease further complicates the therapeutic choice...
August 29, 2017: Current Rheumatology Reviews
keyword
keyword
25035
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"