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https://www.readbyqxmd.com/read/29356180/severe-adverse-cutaneous-drug-reactions-to-antiepileptic-drugs-18-years-of-experience-in-a-tertiary-referral-dermatology-clinic-in-turkey
#1
E Özkaya, S Kılıç
Antiepileptic drugs (AEDs) are the mainstay of treatment for 1% of the human population suffering from epilepsy.1 They are also increasingly used for several non-epileptic neurological conditions, such as trigeminal neuralgia, neuropathic pain syndromes, migraine and psychiatric disorders.2 Three percent of patients who receive AEDs experience adverse cutaneous drug reactions (ACDR),3 which can range across a wide spectrum from mild to moderate eruptions, such as maculopapular rash and, urticaria, to severe and life-threatening conditions, such as drug reactions with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN)...
January 22, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29353407/role-of-the-petrous-ridge-and-angulation-of-the-trigeminal-nerve-in-the-pathogenesis-of-trigeminal-neuralgia-with-implications-for-microvascular-decompression
#2
Andrei Brinzeu, Chloé Dumot, Marc Sindou
INTRODUCTION: Vascular compression is the main pathogenetic factor in apparently primary trigeminal neuralgia; however some patients may present with clinically classical neuralgia but no vascular conflict on MRI or even at surgery. Several factors have been cited as alternative or supplementary factors that may cause neuralgia. This work focuses on the shape of the petrous ridge at the point of exit from the cavum trigeminus as well as the angulation of the nerve at this point. METHODS: Patients with trigeminal neuralgia that had performed a complete imagery workup according to our protocol and had microvascular decompression were included as well as ten controls...
January 20, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29352859/is-selective-5-ht1f-receptor-agonism-an-entity-apart-from-that-of-the-triptans-in-antimigraine-therapy
#3
REVIEW
Eloísa Rubio-Beltrán, Alejandro Labastida-Ramírez, Carlos M Villalón, Antoinette MaassenVanDenBrink
Migraine is a neurovascular disorder that involves activation of the trigeminovascular system and cranial vasodilation mediated by release of calcitonin gene-related peptide (CGRP). The gold standard for acute migraine treatment are the triptans, 5-HT1B/1D/(1F) receptor agonists. Their actions are thought to be mediated through activation of: (i) 5-HT1B receptors in cranial blood vessels with subsequent cranial vasoconstriction; (ii) prejunctional 5-HT1D receptors on trigeminal fibers that inhibit trigeminal CGRP release; and (iii) 5-HT1B/1D/1F receptors in central nervous system involved in (anti)nociceptive modulation...
January 17, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29352128/phosphorylation-of-the-transient-receptor-potential-ankyrin-1-by-cyclin-dependent-kinase-5-affects-chemo-nociception
#4
Bradford E Hall, Michaela Prochazkova, Matthew R Sapio, Paul Minetos, Natalya Kurochkina, B K Binukumar, Niranjana D Amin, Anita Terse, John Joseph, Stephen J Raithel, Andrew J Mannes, Harish C Pant, Man-Kyo Chung, Michael J Iadarola, Ashok B Kulkarni
Cyclin-dependent kinase 5 (Cdk5) is a key neuronal kinase that is upregulated during inflammation, and can subsequently modulate sensitivity to nociceptive stimuli. We conducted an in silico screen for Cdk5 phosphorylation sites within proteins whose expression was enriched in nociceptors and identified the chemo-responsive ion channel Transient Receptor Potential Ankyrin 1 (TRPA1) as a possible Cdk5 substrate. Immunoprecipitated full length TRPA1 was shown to be phosphorylated by Cdk5 and this interaction was blocked by TFP5, an inhibitor that prevents activation of Cdk5...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351686/basilar-artery-ectasia-causing-trigeminal-neuralgia-an-evolved-technique-of-transpositional-suture-pexy
#5
Harminder Singh, Harley Brito da Silva, Mehdi Zeinalizadeh, Turki Elarjani, David Straus, Laligam N Sekhar
BACKGROUND: Microvascular decompression for patients with trigeminal neuralgia (TGN) is widely accepted as one of the modalities of treatment. The standard approach has been retrosigmoid suboccipital craniotomy with placement of a Teflon pledget to cushion the trigeminal nerve from the offending artery, or cauterize and divide the offending vein(s). However, in cases of severe compression caused by a large artery, the standard decompression technique may not be effective. OBJECTIVE: To describe a unique technique of vasculopexy of the ectatic basilar artery to the tentorium in a patient with TGN attributed to a severely ectatic and tortuous basilar artery...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29350446/differential-gene-expression-in-trigeminal-ganglia-of-male-and-female-rats-following-chronic-constriction-of-the-infraorbital-nerve
#6
O A Korczeniewska, S Husain, J Khan, E Eliav, P Soteropoulos, R Benoliel
BACKGROUND: The mechanisms underlying sex-based differences in pain and analgesia are poorly understood. In this study, we investigated gene expression changes in trigeminal ganglia (TG) of male and female rats exposed to infraorbital nerve chronic constriction injury (IoN-CCI). METHODS: Somatosensory assessments were performed prior to IoN-CCI and at selected time points postsurgery. Selected gene expression changes were examined with real-time quantitative polymerase chain reaction (RT-PCR) in ipsilateral TG at 21 days postsurgery...
January 19, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29350272/endoscopic-endonasal-approach-for-trigeminal-schwannomas-our-experience-of-39-patients-in-10%C3%A2-years
#7
Lu Yang, Li Hu, Weidong Zhao, Huankang Zhang, Quan Liu, Dehui Wang
BACKGROUND: The anatomical locations involved in trigeminal schwannomas (TSs) are quite complex. The endoscopic endonasal approach provides a minimal damage access corridor to both anterior and middle skull base for surgery. Given the nerve function recovery and postoperative neurological deterioration varied in different reports, the author demonstrates his surgery tips and the functional outcomes under endoscopic surgery in one single institution. METHODS: A retrospective review of patients with TSs was undertaken to assess the outcome of endoscopic surgery from 2006 to 2016...
January 19, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29344989/salmon-calcitonin-ameliorates-migraine-pain-through-modulation-of-cgrp-release-and-dural-mast-cell-degranulation-in-rats
#8
Erkan Kilinc, Yasar Dagistan, Aysel Kukner, Bayram Yilmaz, Sami Agus, Gizem Soyler, Fatma Tore
The exact mechanism of migraine pathophysiology still remains unclear due to the complex nature of migraine pain. Salmon calcitonin (SC) exhibits antinociceptive effects in the treatment of various pain conditions. In this study, we explored the mechanisms underlying the analgesic effect of salmon calcitonin on migrane pain using glyceryltrinitrate(GTN)-induced model of migraine and ex-vivo meningeal preparations in rats. Rats were administered intraperitoneally saline, GTN(10mg/kg), vehicle, saline+GTN, SC(50μg/kg)+GTN, and SC alone...
January 18, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29344779/trigeminal-neuropathy-in-vestibular-schwannoma-a-treatment-algorithm-to-avoid-long-term-morbidity
#9
Luke Galloway, Nachi Palaniappan, Geoffrey Shone, Caroline Hayhurst
BACKGROUND: Trigeminal neuropathy (TGN) can occur as a presenting feature of vestibular schwannoma (VS) or as an adverse effect of radiosurgery. This study was designed to evaluate a treatment algorithm for presenting symptoms of TGN in patients with VS, and a new radiosurgery dosimetric tolerance to avoid TGN after treatment. Outcome was measured after microsurgery (MS), stereotactic radiosurgery (SRS), hypofractionated stereotactic radiotherapy (HSRT), and fractionated radiotherapy (FRT)...
January 17, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29344066/diagnostic-challenge-sequential-unilateral-cranial-neuropathies-due-to-perineural-spread-of-carcinoma
#10
Heather E Moss, Peter W MacIntosh, Konstantin V Slavin, John M Collins
An 86-year old man developed sequential dysfunction of trigeminal (V1), facial, abducens, trigeminal (v2), oculomotor, and hypoglossal cranial nerves on the right over 20 months. Magnetic resonance imaging (MRI) showed a lesion in the right cavernous sinus. Although there was clinical suspicion that this was related to perineural spread of an extracranial tumour, a primary lesion was not discovered. Stereotactic biopsies of the intracranial lesion were non-diagnostic, and the patient succumbed to his tumour following a period of rapid growth...
August 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29343638/commissural-neurons-transgress-the-cns-pns-boundary-in-absence-of-ventricular-zone-derived-netrin-1
#11
Juan Antonio Moreno-Bravo, Sergi Roig Puiggros, Heike Blockus, Chloé Dominici, Pavol Zelina, Patrick Mehlen, Alain Chédotal
During the development of the central nervous system (CNS), only motor axons project into peripheral nerves. Little is known about the cellular and molecular mechanisms that control the development of a boundary at the CNS surface and prevent CNS neuron emigration from the neural tube. It has previously been shown that a subset of spinal cord commissural axons abnormally invades sensory nerves in Ntn1 hypomorphic embryos and Dcc knockouts. However, whether netrin 1 also plays a similar role in the brain is unknown...
January 17, 2018: Development
https://www.readbyqxmd.com/read/29343566/attenuation-of-simian-varicella-virus-infection-by-enhanced-green-fluorescent-protein-in-rhesus-macaques
#12
Ravi Mahalingam, Benedikt B Kaufer, Werner J D Ouwendijk, Georges M G M Verjans, Colin Coleman, Meredith Hunter, Arpita Das, Brent E Palmer, Eric Clambey, Maria A Nagel, Vicki Traina-Dorge
Simian varicella virus (SVV), the primate counterpart of varicella zoster virus, causes varicella (chickenpox), establishes latency in ganglia and reactivates to produce zoster. We previously demonstrated that a recombinant SVV expressing the enhanced green fluorescent protein (rSVV.eGFP) is slightly attenuated both in culture and infected monkeys. Herein, we generated two additional recombinant SVVs to visualize infected cells in vitro and in vivo One harbors eGFP fused to the N-terminus of open reading frame (ORF) 9 (rSVV...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29340871/neurotoxicity-of-prosopis-juliflora-from-natural-poisoning-to-mechanism-of-action-of-its-piperidine-alkaloids
#13
Victor Diogenes Amaral da Silva, André Mario Mendes da Silva, Juliana Helena Castro E Silva, Silvia Lima Costa
Prosopis juliflora was introduced in northeastern Brazil in the 1940s, and since then, it has been available as an alternative for animal nutrition. However, the consumption of P. juliflora as main or sole source of food causes an illness in animals known locally as "cara torta" disease. Cattle and goats experimentally intoxicated presents neurotoxic damage in the central nervous system. Histologic lesions were mainly characterized by vacuolation and loss of neurons in trigeminal motor nuclei. Furthermore, mitochondrial damage in neurons and gliosis was reported in trigeminal nuclei of intoxicated cattle...
January 16, 2018: Neurotoxicity Research
https://www.readbyqxmd.com/read/29340791/treatment-of-disabling-headache-with-greater-occipital-nerve-injections-in-a-large-population-of-childhood-and-adolescent-patients-a-service-evaluation
#14
Francesca Puledda, Peter J Goadsby, Prab Prabhakar
BACKGROUND: Pediatric headache disorders can be extremely disabling, with marked reduction in the quality of life of children and their carers. Evidenced-based options for the treatment of primary headache disorders with preventive medication is limited and clinical outcomes are often unsatisfactory. Greater occipital nerve injections represent a rapid and well-tolerated therapeutic option, which is widely used in clinical practice in adults, and has previously shown a good outcome in a pediatric population...
January 16, 2018: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29336283/headaches-and-facial-pain-in-rhinology
#15
Asitha D L Jayawardena, Rakesh Chandra
"Sinus headache" is a common chief complaint that often leads patients to an otolaryngologist's office. Because facial pain may or may not be sinogenic in origin, the otolaryngologist should be equipped to evaluate and treat or to appropriately refer these patients. Analysis of current data indicates that the majority of patients who present with sinus headaches actually have migraines. Furthermore, the downstream effect of the cytokine cascade initiated in migraine physiology can cause rhinologic symptoms, including rhinorrhea, congestion, and lacrimation, which may also confound diagnosis...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29335794/effect-of-a-calcitonin-gene-related-peptide-binding-l-rna-aptamer-on-neuronal-activity-in-the-rat-spinal-trigeminal-nucleus
#16
Michael J M Fischer, Jakob Schmidt, Stanislav Koulchitsky, Sven Klussmann, Axel Vater, Karl Messlinger
BACKGROUND: Calcitonin gene-related peptide (CGRP) plays a major role in the pathogenesis of migraine and other primary headaches. Spinal trigeminal neurons integrate nociceptive afferent input from trigeminal tissues including intracranial afferents, and their activity is thought to reflect facial pain and headache in man. CGRP receptor inhibitors and anti-CGRP antibodies have been demonstrated to be therapeutically effective in migraine. In parallel, CGRP receptor inhibition has been shown to lower spinal trigeminal neuron activity in animal models of meningeal nociception...
January 15, 2018: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29334519/the-most-common-causes-of-eye-pain-at-2-tertiary-ophthalmology-and-neurology-clinics
#17
Randy C Bowen, Jan N Koeppel, Chance D Christensen, Karisa B Snow, Junjie Ma, Bradley J Katz, Howard R Krauss, Klara Landau, Judith E A Warner, Alison V Crum, Dominik Straumann, Kathleen B Digre
BACKGROUND: Eye pain is a common complaint, but no previous studies have determined the most common causes of this presenting symptom. Our objective was to determine the most common causes of eye pain in 2 ophthalmology and neurology departments at academic medical centers. METHODS: This was a retrospective cross-sectional analysis and chart review at the departments of ophthalmology and neurology at the University Hospital Zurich (USZ), University of Zürich, Switzerland, and the University of Utah (UU), USA...
January 12, 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29331791/magnesium-sulfate-reduces-formalin-induced-orofacial-pain-in-rats-with-normal-magnesium-serum-levels
#18
Dragana P Srebro, Sonja M Vučković, Ivan S Dožić, Branko S Dožić, Katarina R Savić Vujović, Aleksandar P Milovanović, Branislav V Karadžić, Milica Š Prostran
BACKGROUND: In humans, orofacial pain has a high prevalence and is often difficult to treat. Magnesium is an essential element in biological a system which controls the activity of many ion channels, neurotransmitters and enzymes. Magnesium produces an antinociceptive effect in neuropathic pain, while in inflammatory pain results are not consistent. We examined the effects of magnesium sulfate using the rat orofacial formalin test, a model of trigeminal pain. METHODS: Male Wistar rats were injected with 1...
August 31, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29328001/gamma-knife-radiosurgery-of-saccular-aneurysms-in-a-rabbit-model
#19
Mark D Meadowcroft, Timothy K Cooper, Sebastian Rupprecht, Thaddeus C Wright, Elizabeth E Neely, Michele Ferenci, Weimin Kang, Qing X Yang, Robert E Harbaugh, James R Connor, James McInerney
OBJECTIVE Intracranial aneurysms are vascular abnormalities associated with neurological morbidity and mortality due to risk of rupture. In addition, many aneurysm treatments have associated risk profiles that can preclude the prophylactic treatment of asymptomatic lesions. Gamma Knife radiosurgery (GKRS) is a standard treatment for trigeminal neuralgia, tumors, and arteriovenous malformations. Aneurysms associated with arteriovenous malformations have been noted to resolve after treatment of the malformation...
January 12, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29321326/the-amino-terminus-of-hsv-1-glycoprotein-k-gk-is-required-for-gb-binding-to-akt-release-of-intracellular-calcium-and-fusion-of-the-viral-envelope-with-plasma-membranes
#20
Farhana Musarrat, Nithya Jambunathan, Paul J F Rider, V N Chouljenko, K G Kousoulas
Previously, we have shown that the amino terminus of glycoprotein K (gK) binds to the amino terminus of gB and that deletion of the amino terminal 38 amino acids of gK prevents virus infection of mouse trigeminal ganglia after ocular infection and virus entry into neuronal axons. Recently, it has been shown that gB binds to Akt during virus entry and induces Akt phosphorylation and intracellular calcium release. Proximity ligation and two-way immunoprecipitation assays using monoclonal antibodies against gB and Akt-1 (phospho S473) confirmed that HSV-1(McKrae) gB interacted with Akt-1 (phospo S473) during virus entry into human neuroblastoma (SK-N-SH) cells and induced release of intracellular calcium...
January 10, 2018: Journal of Virology
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