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https://www.readbyqxmd.com/read/28102531/a-systems-dynamics-approach-to-the-efficacy-of-oxime-therapy-for-mild-exposure-to-sarin-gas
#1
Daniel J Droste, Michael L Shelley, Jeffery M Gearhart, David M Kempisty
The use of nerve agents such as sarin is as much a threat today as any other time in our history. The events in Syria in 2013 are proof of this. "The Obama administration asserted Sunday for the first time that the Syrian government used the nerve gas sarin to kill more than 1,400 people (August 21, 2013) in the world's gravest chemical weapons attack in 25 years." With these recent events clear in our mind, we must focus on the horrific nature of these chemical agents to devise a strategy that will enable first responders to counteract these insidious chemicals...
April 2016: American Journal of Disaster Medicine
https://www.readbyqxmd.com/read/28101825/neurosarcoidosis-clinical-presentations-and-changing-treatment-patterns-in-an-irish-caucasian-population
#2
K O'Connell, L Williams, J Jones, D J H McCabe, D Murphy, R Killeen, N Tubridy, S O'Riordan, C McGuigan
BACKGROUND: The clinical manifestations of neurosarcoidosis are highly variable and it should be considered as a potential differential diagnosis in any neurological presentation. AIM: This study was designed to describe the clinical, diagnostic, and treatment patterns and functional outcome in a Caucasian neurosarcoidosis population. DESIGN: A retrospective analysis was performed on prospectively recorded data in patients attending our neurology clinic between 2008 and 2014 with a diagnosis of definite or probable neurosarcoidosis according to Zajiek criteria...
January 18, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28098192/wearable-atmospheric-pressure-plasma-fabrics-produced-by-knitting-flexible-wire-electrodes-for-the-decontamination-of-chemical-warfare-agents
#3
Heesoo Jung, Jin Ah Seo, Seungki Choi
One of the key reasons for the limited use of atmospheric pressure plasma (APP) is its inability to treat non-flat, three-dimensional (3D) surface structures, such as electronic devices and the human body, because of the rigid electrode structure required. In this study, a new APP system design-wearable APP (WAPP)-that utilizes a knitting technique to assemble flexible co-axial wire electrodes into a large-area plasma fabric is presented. The WAPP device operates in ambient air with a fully enclosed power electrode and grounded outer electrode...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094765/selective-antagonism-of-muscarinic-receptors-is-neuroprotective-in-peripheral-neuropathy
#4
Nigel A Calcutt, Darrell R Smith, Katie Frizzi, Mohammad Golam Sabbir, Subir K Roy Chowdhury, Teresa Mixcoatl-Zecuatl, Ali Saleh, Nabeel Muttalib, Randy Van der Ploeg, Joseline Ochoa, Allison Gopaul, Lori Tessler, Jürgen Wess, Corinne G Jolivalt, Paul Fernyhough
Sensory neurons have the capacity to produce, release, and respond to acetylcholine (ACh), but the functional role of cholinergic systems in adult mammalian peripheral sensory nerves has not been established. Here, we have reported that neurite outgrowth from adult sensory neurons that were maintained under subsaturating neurotrophic factor conditions operates under cholinergic constraint that is mediated by muscarinic receptor-dependent regulation of mitochondrial function via AMPK. Sensory neurons from mice lacking the muscarinic ACh type 1 receptor (M1R) exhibited enhanced neurite outgrowth, confirming the role of M1R in tonic suppression of axonal plasticity...
January 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28093646/mechanisms-of-inhibitory-action-of-trk-130-naltalimide-a-%C3%AE-opioid-receptor-partial-agonist-on-the-micturition-reflex
#5
Morihiro Fujimura, Naoki Izumimoto, Sayoko Kanie, Ryosuke Kobayashi, Satoru Yoshikawa, Shinobu Momen, Mikito Hirakata, Toshikazu Komagata, Satoshi Okanishi, Masashi Iwata, Tadatoshi Hashimoto, Takayuki Doi, Naoki Yoshimura, Koji Kawai
PURPOSE: To clarify the mechanism of inhibitory action of TRK-130 (Naltalimide), a unique µ-opioid receptor partial agonist, on the micturition reflex. METHODS: The effect of TRK-130 on isovolumetric rhythmic bladder contractions (RBCs) was examined in guinea pigs, the effect of which was clarified by co-treatment with naloxone or in spinal cord transection. The effect of TRK-130 on urodynamic parameters was also observed in guinea pigs. In addition, the effect of TRK-130 on bladder contraction induced by peripheral stimulation of the pelvic nerve was investigated in rats...
January 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28092622/electroencephalographic-changes-associated-with-non-invasive-nociceptive-stimulus-in-minimally-anaesthetised-dogs
#6
U Kaka, Y M Goh, L W Chean, H C Chen
Electroencephalography (EEG) has been reported as an objective, non-invasive and stress free technique for nociceptive studies. Electrical stimuli can be used to evaluate the efficacy of centrally acting agents. Peripheral nerve stimulator can be a good and cheap source of electric stimulus for studies of nociception, and studies evaluating analgesic effect of drugs under EEG. In this study suitability of peripheral nerve stimulator, and milliamperage for nociceptive studies under electroencephalography were evaluated...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28089998/first-clinical-experience-with-targeted-renal-nerve-demodulation-trend-1-using-a-neurotropic-agent-for-the-treatment-of-sympathetic-hypertension
#7
Nicholas Kipshidze, Horst Sievert, Michael H Wholey, Konstantin Kipiani, Vakhtang Kipiani, Tea Mukhuradze, Mark Wholey, Emily Stein, K T Venkateswara Rao
AIMS: To evaluate the feasibility and safety of a novel targeted neuromodulatory treatment for sympathetic hypertension involving a one-time local injection of neurotropic agents near renal nerves. METHODS AND RESULTS: Seven patients suffering from uncontrolled hypertension per ESH-ESC guidelines were treated using a single dose of NW2013, a neurotropic Na+/K+ ATPase antagonist. A microneedle catheter was used to administer 1.2 mL of NW2013 (0.6 mL per artery) to the perivascular space surrounding renal arteries using percutaneous endovascular procedures under fluoroscopic guidance...
January 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28078916/in-vivo-protection-studies-of-bis-quaternary-2-hydroxyimino-n-pyridin-3-yl-acetamide-derivatives-hnk-oximes-against-tabun-and-soman-poisoning-in-swiss-albino-mice
#8
P Kumar, D Swami, D P Nagar, K P Singh, J Acharya, H N Karade, R Yadav
The study reports antidotal efficacy of three HNK [ bis quaternary 2-(hydroxyimino)-N-(pyridin-3yl) acetamide derivatives] and pralidoxime (2-PAM), against soman and tabun poisoning in Swiss albino mice. Protection index (PI) was determined (treatment doses: HNK oximes, ×0.20 of their median lethal dose (LD50) and 2-PAM, 30 mg/kg, intramuscularly (im)) together with atropine (10 mg/kg, intraperitoneally). Probit log doses with difference of 0.301 log of LD50 of the nerve agents administered and inhibition of acetylcholinesterase (AChE) activity by 50% (IC50) was calculated at optimized time in brain and serum...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28069324/differences-in-therapeutic-effects-of-topically-applied-corticosteroid-and-tacrolimus-on-atopic-dermatitis-like-symptoms-in-nc-nga-mice
#9
Atsushi Noguchi, Mitsutoshi Tominaga, Nobuaki Takahashi, Hironori Matsuda, Yayoi Kamata, Yoshie Umehara, Kyi Chan Ko, Yasushi Suga, Hideoki Ogawa, Kenji Takamori
BACKGROUND: Topical corticosteroid and calcineurin inhibitor have similar therapeutic benefits in atopic dermatitis (AD), but the differences in therapeutic mechanisms of action of these agents against AD symptoms are not fully understood. OBJECTIVE: This study was performed to examine the different effects of topical betamethasone valerate (BMV), clobetasol propionate (CBP), and tacrolimus (TAC) on itch-related behavior and dermatitis in NC/Nga mice with AD-like symptoms...
December 24, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28067709/factors-associated-with-risk-of-neurologic-complications-after-peripheral-nerve-blocks-a-systematic-review
#10
Rakesh V Sondekoppam, Ban C H Tsui
The onset of neurologic complications after regional anesthesia is a complex process and may result from an interaction of host, agent, and environmental risk factors. The purpose of this systematic review was examine the qualitative evidence relating to various risk factors implicated in neurologic dysfunction after peripheral nerve block (PNB). The MEDLINE, OVID, and EMBASE databases were primary sources for literature. Cochrane, LILACS, DARE, IndMed, ERIC, NHS, and HTA via Centre for Reviews and Dissemination (CRD; York University) databases were searched for additional unique results...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28065690/medium-throughput-biochemical-compound-screening-identifies-novel-agents-for-pharmacotherapy-of-neurofibromatosis-type-i
#11
Galina Semenova, Dina Stepanova, Sergey M Deyev, Jonathan Chernoff
The variable manifestation of phenotypes that occur in patients with neurofibromatosis type 1 (NF1) includes benign and malignant neurocutaneous tumors for which no adequate treatment exists. Cell-based screening of known bioactive compounds library identified the protein phosphatase 2A (PP2A) inhibitor Cantharidin and the L-type calcium channel blocker Nifedipine as potential candidates for NF1 pharmacotherapy. Validation of screening results using human NF1-associated malignant peripheral nerve sheath tumor (MPNST) cells showed that Cantharidin effectively impeded MPNST cell growth, while Nifedipine treatment significantly decreased local tumor growth in an MPNST xenograft animal model...
January 5, 2017: Biochimie
https://www.readbyqxmd.com/read/28063649/biologic-drugs-as-analgesics-for-the-management-of-osteoarthritis
#12
REVIEW
Theodoros Dimitroulas, Tosin Lambe, Rainer Klocke, George D Kitas, Rui V Duarte
BACKGROUND: Biologic drugs are novel therapeutic agents with demonstrated effectiveness in the management of a variety of chronic inflammatory disorders. Unmet needs in the treatment of chronic pain have led physicians to utilize a similar approach to patients suffering from conditions not characterized by systemic inflammation such as osteoarthritis (OA). The aim of this review is to discuss the current knowledge on the use of commonly used biologic agents [i.e., anti-tumor necrosis factor alpha (anti-TNF alpha) and anti-nerve growth factor (anti-NGF)] for the management of OA...
December 5, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28060316/an-alternative-and-validated-injection-method-for-accessing-the-subretinal-space-via-a-transcleral-posterior-approach
#13
Sachin Parikh, Andrew Le, Julian Davenport, Michael B Gorin, Steven Nusinowitz, Anna Matynia
Subretinal injections have been successfully used in both humans and rodents to deliver therapeutic interventions of proteins, viral agents, and cells to the interphotoreceptor/subretinal compartment that has direct exposure to photoreceptors and the retinal pigment epithelium (RPE). Subretinal injections of plasminogen as well as recent preclinical and clinical trials have demonstrated safety and/or efficacy of delivering viral vectors and stem cells to individuals with advanced retinal disease. Mouse models of retinal disease, particularly hereditary retinal dystrophies, are essential for testing these therapies...
December 7, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28059627/structural-and-functional-alterations-in-the-colonic-microbiome-of-the-rat-in-a-model-of-stress-induced-irritable-bowel-syndrome
#14
Nicolaas H Fourie, Dan Wang, Sarah K Abey, Amy L Creekmore, Shuangsong Hong, Christiana G Martin, John W Wiley, Wendy A Henderson
Stress is known to perturb the microbiome and exacerbate irritable bowel syndrome (IBS) associated symptoms. Characterizing structural and functional changes in the microbiome is necessary to understand how alterations affect the biomolecular environment of the gut in IBS. Repeated water avoidance (WA) stress was used to induce IBS-like symptoms in rats. The colon-mucosa associated microbiome was characterized in 13 stressed and control animals by 16S sequencing. In silico analysis of the functional domains of microbial communities was done by inferring metagenomic profiles from 16S data...
January 6, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28052373/best-time-window-for-the-use-of-calcium-modulating-agents-to-improve-functional-recovery-in-injured-peripheral-nerves-an-experiment-in-rats
#15
Yuhui Yan, Feng-Yi Shen, Michael Agresti, Lin-Ling Zhang, Hani S Matloub, John A LoGiudice, Robert Havlik, Jifeng Li, Yu-Dong Gu, Ji-Geng Yan
Peripheral nerve injury can have a devastating effect on daily life. Calcium concentrations in nerve fibers drastically increase after nerve injury, and this activates downstream processes leading to neuron death. Our previous studies showed that calcium-modulating agents decrease calcium accumulation, which aids in regeneration of injured peripheral nerves; however, the optimal therapeutic window for this application has not yet been identified. In this study, we show that calcium clearance after nerve injury is positively correlated with functional recovery in rats suffering from a crushed sciatic nerve injury...
January 4, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28042720/resection-of-uncovertebral-joints-and-posterior-longitudinal-ligament-for-cervical-disc-arthroplasty
#16
Tsung-Hsi Tu, Chih-Chang Chang, Jau-Ching Wu, Li-Yu Fay, Wen-Cheng Huang, Henrich Cheng
The most commonly accepted indications for cervical disc arthroplasty (CDA) are 1- and 2-level cervical disc herniation or spondylosis causing radiculopathy or myelopathy that is refractory to medical management. Unlike anterior cervical discectomy and fusion (ACDF), which eliminates motion, CDA aims to restore the physiological range of motion of the indexed joint. Thus, the effect of indirect decompression gained by the insertion of a sufficiently large interbody graft and incorporation into arthrodesis after ACDF cannot be duplicated for CDA...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28038315/in-situ-probes-of-capture-and-decomposition-of-chemical-warfare-agent-simulants-by-zr-based-metal-organic-frameworks
#17
Anna M Plonka, Qi Wang, Wesley O Gordon, Alex Balboa, Diego Troya, Weiwei Guo, Conor H Sharp, Sanjaya D Senanayake, John R Morris, Craig L Hill, Anatoly I Frenkel
Zr-based metal organic frameworks (MOFs) have been recently shown to be among the fastest catalysts of nerve-agent hydrolysis in solution. We report a detailed study of the adsorption and decomposition of a nerve-agent simulant, dimethyl methylphosphonate (DMMP), on UiO-66, UiO-67, MOF-808, and NU-1000 using synchrotron-based X-ray powder diffraction, X-ray absorption, and infrared spectroscopy, which reveals key aspects of the reaction mechanism. The diffraction measurements indicate that all four MOFs adsorb DMMP (introduced at atmospheric pressures through a flow of helium or air) within the pore space...
January 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28034352/development-of-a-novel-carbon-11-labeled-pet-radioligand-for-melanin-concentrating-hormone-receptor-1
#18
Hideyuki Igawa, Vladimir Stepanov, Lenke Tari, Shoki Okuda, Syunsuke Yamamoto, Shizuo Kasai, Yasutaka Nagisa, Jenny Häggkvist, Marie Svedberg, Miklós Tóth, Akihiro Takano, Christer Halldin
Melanin-concentrating hormone (MCH) is an attractive target for antiobesity agents and many drug discovery programs have been dedicated to identify small-molecule antagonists of melanin-concentrating hormone receptor 1 (MCHR1). The aim of this study was to develop a positron emission tomography (PET) tracer for MCHR1 for translation of preclinical pharmacology to clinic to enhance success rate of drug discovery programs. We identified 4-(cyclopropylmethoxy)-N-[8-methyl-3-({[(1-methyl-1H-pyrrol-2-yl)methyl]amino}ethyl)quinolin-7-yl]benzamide (Compound II) from Takeda MCHR1 antagonist library by utilizing binding affinity, log D value, physicochemical parameters ideal for a central nerve system agent, and synthetic feasibility of corresponding carbon-11 labeled radioligands as selection parameters for tracer candidates...
December 30, 2016: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28032668/might-genetics-play-a-role-in-understanding-and-treating-diabetic-polyneuropathy
#19
Vincenza Spallone
Despite the high prevalence and impact on quality of life, costs and survival, there are still unresolved issues regarding diabetic polyneuropathy (DPN): the lack of definite knowledge of its pathogenesis; the limited preventive action of glycaemic control in type 2 diabetes; and the unavailability of effective evidence-based disease-modifying treatment. How can genetics provide the tools to address these gaps? Ziegler et al for the GDS Group explore the novel hypothesis that genetic variability in transketolase (TKT) might contribute to susceptibility to DPN in patients with newly diagnosed type 1 and type 2 diabetes (well characterised for DPN)...
December 29, 2016: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28032230/protective-effect-of-p7c3-on-retinal-ganglion-cells-from-optic-nerve-injury
#20
Hidehiro Oku, Seita Morishita, Taeko Horie, Yuko Nishikawa, Teruyo Kida, Masashi Mimura, Shota Kojima, Tsunehiko Ikeda
PURPOSE: To determine whether P7C3-A20, a proneurogenic neuroprotective agent, can protect the retinal ganglion cells (RGCs) of rats from optic nerve crushing. METHODS: The left optic nerve of 67 rats was crushed, and 5.0 mg/kg/day of P7C3-A20 (crush-P7C3) or its vehicle (crush-placebo) was injected intraperitoneally for 3 days from one day prior to the crushing. The protective effects were determined by the number of Tuj-1-stained RGCs and by the ratio of the mRNA levels of BAX/Bcl-2 on day 7...
December 28, 2016: Japanese Journal of Ophthalmology
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