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https://www.readbyqxmd.com/read/28534510/targeting-group-i-p21-activated-kinases-to-control-malignant-peripheral-nerve-sheath-tumor-growth-and-metastasis
#1
G Semenova, D S Stepanova, C Dubyk, E Handorf, S M Deyev, A J Lazar, J Chernoff
Malignant peripheral nerve sheath tumors (MPNSTs) are devastating sarcomas for which no effective medical therapies are available. Over 50% of MPSNTs are associated with mutations in NF1 tumor suppressor gene, resulting in activation of Ras and its effectors, including the Raf/Mek/Erk and PI3K/Akt/mTORC1 signaling cascades, and also the WNT/β-catenin pathway. As Group I p21-activated kinases (Group I Paks, PAK1/2/3) have been shown to modulate Ras-driven oncogenesis, we asked if these enzymes might regulate signaling in MPNSTs...
May 22, 2017: Oncogene
https://www.readbyqxmd.com/read/28531843/rapid-ic-ms-ms-determination-of-methylphosphonic-acid-in-urine-of-rats-exposed-to-organophosphorus-nerve-agents
#2
Timur Baygildiev, Alexandra Zatirakha, Igor Rodin, Arkady Braun, Andrey Stavrianidi, Nadezhda Koryagina, Igor Rybalchenko, Oleg Shpigun
A direct approach for the determination of a specific hydrolysis product of organophosphorus nerve agents such as methylphosphonic acid (MPA) in urine by ion chromatography and tandem mass spectrometry (IC-MS/MS) has been developed. The first advantage of the proposed approach is a rapid and simple sample preparation, which does not require a large sample volume, complicated and laborious preconcentration and derivatization steps, and takes less than 7min per sample. The second advantage is the fast and selective IC determination of MPA carried out on a noncommercial anion exchanger based on a poly(styrene-co-divinylbenzene) (PS-DVB) substrate with a high degree of crosslinking and a covalently-bonded branched functional layer, which enables complete resolution of MPA from major urine matrix components and allows one to overcome matrix effects...
May 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28529036/qx-oh-a-qx-314-derivative-agent-produces-long-acting-local-anesthesia-in-rats
#3
YuJun Zhang, Jun Yang, QinQin Yin, LingHui Yang, Jin Liu, WenSheng Zhang
QX-314 has been shown to produce long-acting local anesthesia in vivo in animals; however, translation to humans has been impeded by concerns about toxicity. We investigated whether the newly emerged QX-OH molecule could confer long-lasting anesthesia with a low local toxicity in rats. In rat sciatic nerve block model, QX-OH 25mM produced a longer sensory block than QX-314 25mM (median [25th, 75th percentiles], 5.5 [4.25, 6] h vs. 3 [3, 4] h; P=0.03). QX-OH 35mM produced a longer sensory block than QX-314 35mM (8 [6, 12] h vs...
May 18, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28527055/cluster-headache-present-and-future-therapy
#4
Massimo Leone, Alessandro Giustiniani, Alberto Proietti Cecchini
Cluster headache is characterized by severe, unilateral headache attacks of orbital, supraorbital or temporal pain lasting 15-180 min accompanied by ipsilateral lacrimation, rhinorrhea and other cranial autonomic manifestations. Cluster headache attacks need fast-acting abortive agents because the pain peaks very quickly; sumatriptan injection is the gold standard acute treatment. First-line preventative drugs include verapamil and carbolithium. Other drugs demonstrated effective in open trials include topiramate, valproic acid, gabapentin and others...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526152/pharmacologic-properties-of-novel-local-anesthetic-agents-in-anesthesia-practice
#5
REVIEW
Chih H King, Sascha S Beutler, Alan D Kaye, Richard D Urman
Therapeutic duration of traditional local anesthetics when used in peripheral nerve blocks is normally limited. This article describes novel approaches to extend the duration of peripheral nerve blocks currently available or in development. Three newer approaches on extending the duration of peripheral nerve blocks include site-1 sodium channel blockers, novel local anesthetics delivery systems, and novel adjuvants of local anesthetics. Compared with plain amide-based and ester-based local anesthetics, alternative approaches show significant promise in decreasing postoperative pain, rescue opioid requirement, hospital length-of-stay, and overall health care cost, without compromising the established safety profile of traditional local anesthetics...
June 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/28514981/essential-lessons-in-a-potential-sarin-attack-disaster-plan-for-a-resource-constrained-environment
#6
Matthew John Watermeyer, Nicole Dippenaar, Nelly Clotildea Tchouambou Simo, Sean Buchanan, Abdullah Ebrahim Laher
Sarin is a potent nerve agent chemical weapon that was originally designed for military purposes as a fast-acting anti-personnel weapon that would kill or disable large numbers of enemy troops. Its potent toxicity, ease of deployment, and rapid degradation allow for rapid deployment by an attacking force, who can safely enter the area of deployment a short while after its release. Sarin has been produced and stockpiled by a number of countries, and large quantities of it still exist despite collective agreements to cease manufacture and destroy stockpiles...
May 18, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28512447/low-dose-pulsatile-interleukin-6-as-a-treatment-option-for-diabetic-peripheral-neuropathy
#7
REVIEW
April Ann Cox, Yves Sagot, Gael Hedou, Christina Grek, Travis Wilkes, Aaron I Vinik, Gautam Ghatnekar
Diabetic peripheral neuropathy (DPN) remains one of the most common and serious complications of diabetes. Currently, pharmacological agents are limited to treating the pain associated with DPN, and do not address the underlying pathological mechanisms driving nerve damage, thus leaving a significant unmet medical need. Interestingly, research conducted using exercise as a treatment for DPN has revealed interleukin-6 (IL-6) signaling to be associated with many positive benefits such as enhanced blood flow and lipid metabolism, decreased chronic inflammation, and peripheral nerve fiber regeneration...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28511527/temporary-blindness-after-inferior-alveolar-nerve-block
#8
Animesh Barodiya, Rishi Thukral, Shaila Mahendra Agrawal, Anshul Rai, Siddharth Singh
Inferior Alveolar Nerve Block (IANB) anaesthesia is one of the common procedures in dental clinic. This procedure is safe, but complications may still occur. Ocular complications such as diplopia, loss of vision, or ophthalmoplegia are extremely rare. This case report explains an event where due to individual anatomic variation of the sympathetic vasoconstrictor nerve and maxillary and middle meningeal arteries, intravascular administration of anaesthetic agent caused unusual ocular signs and symptoms such as temporary blindness...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511367/neurobehavioural-changes-in-a-hemiparkinsonian-rat-model-induced-by-rotenone
#9
REVIEW
Sukala Puthuparambil Maniyath, Narayanan Solaiappan, Muthusamy Rathinasamy
INTRODUCTION: Rotenone, a mitochondrial complex I inhibitor is used as a neurotoxin agent to reproduce the neuropathological, and behavioural feature of Parkinson's Disease (PD) in rat. Due to acute and chronic exposure of rotenone with various doses through different routes of administration, mortality is being reported. Low dose takes a longer duration to produce PD symptoms in animals. This present study was designed to create hemiparkinsonian 'partial' lesion model by rotenone at a single moderate dose in two sites of striatum in albino rats and also to assess its toxicity by behavioural parameters and by microscopic study...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28507260/reprogramming-cells-from-gulf-war-veterans-into-neurons-to-study-gulf-war-illness
#10
Liang Qiang, Anand N Rao, Gustavo Mostoslavsky, Marianne F James, Nicole Comfort, Kimberly Sullivan, Peter W Baas
Gulf War illness (GWI), which afflicts at least 25% of veterans who served in the 1990-1991 war in the Persian Gulf, is thought to be caused by deployment exposures to various neurotoxicants, including pesticides, anti-nerve gas pills, and low-level nerve agents including sarin/cyclosarin. GWI is a multisymptom disorder characterized by fatigue, joint pain, cognitive problems, and gastrointestinal complaints. The most prominent symptoms of GWI (memory problems, poor attention/concentration, chronic headaches, mood alterations, and impaired sleep) suggest that the disease primarily affects the CNS...
May 16, 2017: Neurology
https://www.readbyqxmd.com/read/28500787/corticosterone-primes-the-neuroinflammatory-response-to-gulf-war-illness-relevant-organophosphates-independently-of-acetylcholinesterase-inhibition
#11
Alicia R Locker, Lindsay T Michalovicz, Kimberly A Kelly, Julie V Miller, Diane B Miller, James P O'Callaghan
Gulf War Illness (GWI) is a chronic multi-symptom disorder affecting veterans of the 1991 Gulf War. Among the symptoms of GWI are those associated with sickness behavior, observations suggestive of underlying neuroinflammation. We have shown that exposure of mice to the stress hormone, corticosterone (CORT), and to diisopropyl fluorophosphate (DFP), as a nerve agent mimic, results in marked neuroinflammation, findings consistent with a stress/neuroimmune basis of GWI. Here, we examined the contribution of irreversible and reversible acetylcholinesterase (AChE) inhibitors to neuroinflammation in our mouse model of GWI...
May 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28496430/cholinergic-nociceptive-mechanisms-in-rat-meninges-and-trigeminal-ganglia-potential-implications-for-migraine-pain
#12
Irina Shelukhina, Nikita Mikhailov, Polina Abushik, Leniz Nurullin, Evgeny E Nikolsky, Rashid Giniatullin
BACKGROUND: Parasympathetic innervation of meninges and ability of carbachol, acetylcholine (ACh) receptor (AChR) agonist, to induce headaches suggests contribution of cholinergic mechanisms to primary headaches. However, neurochemical mechanisms of cholinergic regulation of peripheral nociception in meninges, origin place for headache, are almost unknown. METHODS: Using electrophysiology, calcium imaging, immunohistochemistry, and staining of meningeal mast cells, we studied effects of cholinergic agents on peripheral nociception in rat hemiskulls and isolated trigeminal neurons...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28495596/the-role-of-omega-3-and-omega-9-fatty-acids-for-the-treatment-of-neuropathic-pain-after-neurotrauma
#13
REVIEW
Iriana Galán-Arriero, Diego Serrano-Muñoz, Julio Gómez-Soriano, Carlos Goicoechea, Julian Taylor, Ana Velasco, Gerardo Ávila-Martín
Omega-3 polyunsaturated fatty acids (PUFAs), such as Docosaexaenoic Acid (DHA) and Eicosapentaenoic Acid (EPA), mediate neuroactive effects in experimental models of traumatic peripheral nerve and spinal cord injury. Cellular mechanisms of PUFAs include reduced neuroinflammation and oxidative stress, enhanced neurotrophic support, and activation of cell survival pathways. Bioactive omega-9 monounsaturated fatty acids, such as Oleic Acid (OA) and 2-Hydroxy Oleic Acid (2-OHOA), also show therapeutic effects in neurotrauma models...
May 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28495385/derivatives-of-caffeic-acid-a-natural-antioxidant-as-the-basis-for-the-discovery-of-novel-nonpeptidic-neurotrophic-agents
#14
Fatemeh Moosavi, Razieh Hosseini, Hamid Rajaian, Tiago Silva, Diogo Magalhães E Silva, Luciano Saso, Najmeh Edraki, Ramin Miri, Fernanda Borges, Omidreza Firuzi
Neurodegenerative disorders, such as Parkinson's disease and Alzheimer's disease, threaten the lives of millions of people and the number of affected patients is constantly growing with the increase of the aging population. Small molecule neurotrophic agents represent promising therapeutics for the pharmacological management of neurodegenerative diseases. In this study, a series of caffeic acid amide analogues with variable alkyl chain lengths, including ACAF3 (C3), ACAF4 (C4), ACAF6 (C6), ACAF8 (C8) and ACAF12 (C12) were synthesized and their neurotrophic activity was examined by different methods in PC12 neuronal cells...
April 27, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28494780/metastatic-non-muscle-invasive-bladder-cancer-with-meningeal-carcinomatosis-case-report-of-an-unexpected-response
#15
Diego Teyssonneau, Amaury Daste, Vincent Dousset, Jean-Luc Hoepffner, Alain Ravaud, Marine Gross-Goupil
BACKGROUND: Non-muscle invasive bladder cancer (NMIBC) is usually treated with local therapy including transurethral resection of the bladder tumor and intravesical therapy depending on the stage of the tumor. NMIBC is a rarely a metastatic diseases with lymph node invasion in less of 10%. In the other hand meningeal carcinomatosis is a rare location for metastases with extremely poor outcomes. We described a case report of a patient presenting a metastatic disease to bones and meninges, several years after the treatment of NMIBC, which had been in complete response (CR) for 4 years after chemotherapy treatment...
May 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28494088/peripheral-nerve-blocks-for-hip-fractures
#16
REVIEW
Joanne Guay, Martyn J Parker, Richard Griffiths, Sandra Kopp
BACKGROUND: Various nerve blocks with local anaesthetic agents have been used to reduce pain after hip fracture and subsequent surgery. This review was published originally in 1999 and was updated in 2001, 2002, 2009 and 2017. OBJECTIVES: This review focuses on the use of peripheral nerves blocks as preoperative analgesia, as postoperative analgesia or as a supplement to general anaesthesia for hip fracture surgery. We undertook the update to look for new studies and to update the methods to reflect Cochrane standards...
May 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28493001/study-on-the-tolerance-and-adaptation-of-rats-to-angiostrongylus-cantonensis-infection
#17
Liu Ji, Xu Yiyue, He Xujin, Zheng Minghui, Zhang Mengying, Hu Yue, Wu Yanqi, Song Langui, Zeng Xin, Lin Datao, Wan Shuo, Zheng Huanqin, Wu Zhongdao, Lv Zhiyue
Angiostrongylus cantonensis (A. cantonensis) is the most common infectious agent causing eosinophilic meningitis. As an important food-borne parasitic disease, angiostrongyliasis cantonensis is an emerging infectious disease which brings severe harm to central nerve system of human. Rat, one of the few permissive hosts of A. cantonensis known to date, plays an indispensable role in the worm's life cycle. However, the tolerance and adaptation of rat to A. cantonensis infection is rarely understood. In this study, we infected rats with different numbers the third stage larvae (L3) of A...
May 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28486925/the-mutual-interaction-between-sleep-and-epilepsy-on-the-neurobiological-basis-and-therapy
#18
Yi-Qun Wang, Meng-Qi Zhang, Rui Li, Wei-Min Qu, Zhi-Li Huang
Sleep and epilepsy are mutually related in a complex, bidirectional manner. However, our understanding of this relationship remains unclear. In this paper, we address the issues involved in these phenomena and also discuss the various therapies used to modify them. The literatures of the neurobiological basis of the interactions between sleep and epilepsy indicate that non-rapid eye movement sleep and idiopathic generalized epilepsy share the same thalamocortical networks. Neuromodulators-such as adenosine, melatonin, prostaglandin D2, serotonin, and histamine-promote wakefulness and are considered to have antiepilepsy effects; antiepileptic drugs, in turn, also have effects on sleep...
May 8, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28481421/immunomodulatory-treatment-other-than-corticosteroids-immunoglobulin-and-plasma-exchange-for-chronic-inflammatory-demyelinating-polyradiculoneuropathy
#19
REVIEW
Mohamed Mahdi-Rogers, Ruth Brassington, Angela A Gunn, Pieter A van Doorn, Richard Ac Hughes
BACKGROUND: Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a disease that causes progressive or relapsing and remitting weakness and numbness. It is probably caused by an autoimmune process. Immunosuppressive or immunomodulatory drugs would be expected to be beneficial. This review was first published in 2003 and has been updated most recently in 2016. OBJECTIVES: To assess the effects of immunomodulatory and immunosuppressive agents other than corticosteroids, immunoglobulin, and plasma exchange in CIDP...
May 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28474189/transsphenoidal-and-infralabyrinthine-approach-of-the-petrous-apex-cholesterol-granuloma
#20
Karl-Ludwig Bruchhage, Barbara Wollenberg, Anke Leichtle
Space-demanding or destructive changes in the petrous bone are often challenging differential diagnosis. Cholesterol granulomas of the petrous apex can clinically present in a combination of hearing loss, vertigo, tinnitus, chronic cephalgia, impairment of facial nerve function, neuralgic pain of the nervus trigeminus, or manifest diplopia by the nerve palsy of the nervus abducens. CT-morphologically cholesterol granulomas appear as soft-tissue density masses, which may display a discrete rim after intravenous administration of a contrast agent...
May 4, 2017: European Archives of Oto-rhino-laryngology
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