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Drug induced seizure

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https://www.readbyqxmd.com/read/28811775/metformin-attenuate-ptz-induced-apoptotic-neurodegeneration-in-human-cortical-neuronal-cells
#1
Fehmida Bibi, Ikram Ullah, Myeong Ok Kim, Muhammad Imran Naseer
OBJECTIVE: Seizures are one of the neurodegenerative disorders of human being. Metformin has antioxidant properties and commonly used as an oral antidiabetic drug. The current study was aimed to observe the neuroprotective effect of metformin against PTZ-induced apoptotic neurodegeneration in human cortical neuronal cell culture. METHODS: To observe that exposure of pentylenetetrazol (PTZ) at the dose of (30mM) for 30 minutes induced neuronal cell death by activation of caspase-3 in human cortical neuronal 2 (HCN-2) cell line...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28807787/trigeminal-nerve-stimulation-induces-fos-immunoreactivity-in-selected-brain-regions-increases-hippocampal-cell-proliferation-and-reduces-seizure-severity-in-rats
#2
Beniamina Mercante, Paolo Enrico, Gabriele Floris, Marina Quartu, Marianna Boi, Maria Pina Serra, Paolo Follesa, Franca Deriu
Sites and mechanisms by which trigeminal nerve stimulation (TNS) exerts beneficial effects on symptoms of drug-resistant epilepsy and depression are still unknown. Effects of short-term TNS on brain regions involved in the physiopathology of these disorders were investigated in this study. Forty male rats were assigned to 3 groups: TNS (undergoing electrical stimulation of the left infraorbitary nerve via surgically implanted cuff electrodes); Sham (undergoing surgical procedure but without a stimulation); Naïve rats...
August 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28806046/electrolytes-sodium-disorders
#3
Michael M Braun, Megan Mahowald
Sodium disorders (ie, hyponatremia, hypernatremia) are common electrolyte disturbances in clinical medicine and are associated with increased rates of morbidity and mortality. Etiologies of hyponatremia are classified into four categories. The first is pseudohyponatremia, in which the sodium level is low due to hyperproteinemia, hyperlipidemia, or hyperglycemia. The other three categories are based on overall patient fluid status and include hypovolemic (commonly due to fluid loss), hypervolemic (commonly due to fluid retention from heart failure, cirrhosis, or renal failure), and euvolemic (most often because of syndrome of inappropriate secretion of antidiuretic hormone)...
August 2017: FP Essentials
https://www.readbyqxmd.com/read/28802513/nonconvulsive-status-epilepticus-after-electroconvulsive-therapy-a-review-of-literature
#4
Awais Aftab, Ashley VanDercar, Ayham Alkhachroum, Christine LaGrotta, Keming Gao
BACKGROUND: The clinical presentation and risk factors of nonconvulsive status epilepticus (NCSE) in the context of electroconvulsive therapy (ECT) are poorly understood, and guidance regarding diagnosis and management remains scarce. In this article, we identify case reports of ECT-induced NCSE from literature, and discuss the presentation, diagnosis, and management of these cases in the context of what is known about NCSE from the neurology literature. METHODS: A literature search on PubMed for case reports of NCSE after ECT...
July 15, 2017: Psychosomatics
https://www.readbyqxmd.com/read/28777257/chronic-levetiracetam-decreases-hippocampal-and-testicular-aromatase-expression-in-normal-but-not-kainic-acid-induced-experimental-model-of-acute-seizures-in-rats
#5
Mehtap Cincioğlu-Palabiyik, Meral Üner, Dilek Ertoy-Baydar, Yildirim Sara, Hande Karahan, Pelin Kelicen-Uğur
Reproductive disorders are more common in men with epilepsy taking anticonvulsant medications. Antiseizure/anticonvulsant drugs and seizures in medial temporal lobe structures may cause gonadal dysfunction, including infertility, decreased libido, and potency. Levels of circulating bioavailable testosterone are affected by the aromatase enzyme, which converts testosterone into estrogen and may be affected by seizure medications. However, the relationship of anticonvulsant drugs with central aromatase levels is not clear...
August 2, 2017: Neuroreport
https://www.readbyqxmd.com/read/28776277/anti-epileptic-activity-of-nelumbo-nucifera-fruit
#6
Muhammad Ali Rajput, Rafeeq Alam Khan, Tahira Assad
Epilepsy is the most commonly encountered neurological disorder affecting around 70 million people worldwide, out of which approximately 80% belongs to developing countries. Several shortcomings appeared with the use of conventional antiepileptic agents like, inadequate seizure control, side effects and cost which limit their use. Thus extensive studies are necessary to investigate the pharmacological effects of plants, which would facilitate discovery of novel drugs from herbal source permitting their use to benefit mankind...
August 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28775328/inhibition-of-glutamate-decarboxylase-gad-by-ethyl-ketopentenoate-ekp-induces-treatment-resistant-epileptic-seizures-in-zebrafish
#7
Yifan Zhang, Michiel Vanmeert, Aleksandra Siekierska, Annelii Ny, Jubi John, Geert Callewaert, Eveline Lescrinier, Wim Dehaen, Peter A M de Witte, Rafal M Kaminski
Epilepsy is a chronic brain disorder characterized by recurrent seizures due to abnormal, excessive and synchronous neuronal activities in the brain. It affects approximately 65 million people worldwide, one third of which are still estimated to suffer from refractory seizures. Glutamic acid decarboxylase (GAD) that converts glutamate into GABA is a key enzyme in the dynamic regulation of neural network excitability. Importantly, clinical evidence shows that lowered GAD activity is associated with several forms of epilepsy which are often treatment resistant...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28766701/rationale-for-an-adjunctive-therapy-with-fenofibrate-in-pharmacoresistant-nocturnal-frontal-lobe-epilepsy
#8
Monica Puligheddu, Miriam Melis, Giuliano Pillolla, Giulia Milioli, Liborio Parrino, Giovanni Mario Terzano, Sonia Aroni, Claudia Sagheddu, Francesco Marrosu, Marco Pistis, Anna Lisa Muntoni
OBJECTIVE: Nocturnal frontal lobe epilepsy (NFLE) is an idiopathic partial epilepsy with a family history in about 25% of cases, with autosomal dominant inheritance (autosomal dominant NFLE [ADNFLE]). Traditional antiepileptic drugs are effective in about 55% of patients, whereas the rest remains refractory. One of the key pathogenetic mechanisms is a gain of function of neuronal nicotinic acetylcholine receptors (nAChRs) containing the mutated α4 or β2 subunits. Fenofibrate, a common lipid-regulating drug, is an agonist at peroxisome proliferator-activated receptor alpha (PPARα) that is a ligand-activated transcription factor, which negatively modulates the function of β2-containing nAChR...
August 2, 2017: Epilepsia
https://www.readbyqxmd.com/read/28766407/anticonvulsant-effects-of-thiamine-on-pentylenetetrazole-induced-seizure-in-mice
#9
Azam Mesdaghinia, Marziye Alinejad, Alireza Abed, Azhdar Heydari, Hamid Reza Banafshe
OBJECTIVES: Thiamine serves as a cofactor for several enzymes involved in brain function and neurotransmitters biosynthesis. Thiamine-dependent enzymes are important for oxidant stress defenses. Several studies have reported that thiamine deficiency in the central nervous system reduces seizure threshold. The present study was designed to investigate the effect of acute and chronic administration of thiamine alone and in combination with sub-effective dose of diazepam on pentylenetetrazole (PTZ)-induced tonic-clonic seizures in mice...
August 2, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28755998/loperamide-induced-torsades-de-pointes-a-case-series
#10
Kenneth D Katz, Robert D Cannon, Matthew D Cook, Alexandra Amaducci, Ryan Day, Joshua Enyart, Glenn Burket, Lauren Porter, Timothy Roach, Jennifer Janssen, Karl E Williams
Loperamide is an over-the-counter, inexpensive, antidiarrheal opioid that can produce life-threatening toxicity at high concentrations. CASE REPORT 1: A 28-year-old man with a history of depression and substance abuse disorder (SUD) presented to the emergency department (ED) with shortness of breath and lightheadedness. He ingested large amounts of loperamide daily. The patient's initial electrocardiogram (ECG) demonstrated sinus rhythm, right axis deviation, undetectable PR interval, QRS 168 ms, and QTc 693 ms...
July 26, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28755832/-serious-adverse-drug-reactions-with-tramadol-reported-to-the-french-pharmacovigilance-database-between-2011%C3%A2-and-2015
#11
Florence Moulis, Vanessa Rousseau, Delphine Abadie, Kamel Masmoudi, Joëlle Micallef, Caroline Vigier, Sabrina Pierre, Anne Dautriche, François Montastruc, Jean-Louis Montastruc
BACKGROUND: Tramadol is an opioid and a serotonin reuptake inhibitor drug. It is approved for moderate to severe pain in adults. The aim of this study was to assess tramadol safety through a national pharmacovigilance study in France since dextropropoxyphen withdrawal in 2011. METHODS: We described all serious adverse drug reactions (SADRs) reported with tramadol in adults in the French National PharmacoVigilance Database from August 1st, 2011 to December 31st, 2015...
June 29, 2017: Thérapie
https://www.readbyqxmd.com/read/28755095/neurological-adverse-effects-attributable-to-%C3%AE-lactam-antibiotics-a-literature-review
#12
REVIEW
Samuel Deshayes, Antoine Coquerel, Renaud Verdon
β-lactam antibiotics are commonly prescribed antibiotic drugs. To describe the clinical characteristics, risk markers and outcomes of β-lactam antibiotic-induced neurological adverse effects, we performed a general literature review to provide updated clinical data about the most used β-lactam antibiotics. For selected drugs in each class available in France (ticarcillin, piperacillin, temocillin, ceftazidime, cefepime, cefpirome, ceftaroline, ceftobiprole, ceftolozane, ertapenem and aztreonam), a systematic literature review was performed up to April 2016 via an electronic search on PubMed...
July 28, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28753046/levetiracetam-in-toxic-seizures
#13
Ted Lee, Brandon J Warrick, Preeyaporn Sarangarm, Robert L Alunday, Silas Bussmann, Susan C Smolinske, Steven A Seifert
BACKGROUND/OBJECTIVES: The use of levetiracetam (LEV) in the management of drug-induced seizures has not been systematically investigated. Repetitive and continuous seizures that do not respond to benzodiazepines require second line therapy. Levetiracetam has a unique receptor binding site, rapid absorption, no known cardiac effects at therapeutic doses, and is theoretically a good candidate for use in drug-induced seizures. We evaluate the safety of LEV and its association with seizure cessation in this retrospective chart review of patients who received LEV as a control agent in drug-induced seizures...
July 28, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28749594/seizure-activity-per-se-does-not-induce-tissue-damage-markers-in-human-neocortical-focal-epilepsy
#14
Laura Rossini, Rita Garbelli, Vadym Gnatkovsky, Giuseppe Didato, Flavio Villani, Roberto Spreafico, Francesco Deleo, Giorgio Lo Russo, Giovanni Tringali, Francesca Gozzo, Laura Tassi, Marco de Curtis
Objective The contribute of recurring seizures to the progression of epileptogenesis is debated. Seizure-induced brain damage is not conclusively demonstrated both in humans and in animal models of epilepsy. We evaluated the expression of brain injury biomarkers on post-surgical brain tissue obtained from 20 patients with frequent seizures and a long history of drug-resistant focal epilepsy. Methods The expression patterns of specific glial, neuronal and inflammatory molecules was evaluated by immunohistochemistry in the core of type II focal cortical dysplasias (FCD-II), at the FCD boundary (perilesion) and in the adjacent normal-appearing area included in the epileptogenic region...
July 27, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28747093/prochlorperazine-increases-kcc2-function-and-reduces-spasticity-after-spinal-cord-injury
#15
Sylvie Liabeuf, Laetitia Stuhl-Gourmand, Florian Gackière, Renzo Mancuso, Irene Sanchez-Brualla, Philippe Marino, Frédéric Brocard, Laurent Vinay
In mature neurons, low intracellular chloride level required for inhibition is maintained by the potassium-chloride co-transporter KCC2. Impairment of Cl- extrusion following KCC2 dysfunction has been involved in many CNS disorders such as seizures, neuropathic pain or spasticity after a spinal cord injury (SCI). This makes KCC2 an appealing drug target for restoring Cl-homeostasis and inhibition in pathological conditions. In the present study, we screen the Prestwick Chemical Library® and identify conventional antipsychotics phenothiazine derivatives as enhancers of KCC2 activity...
July 26, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28741150/eslicarbazepine-acetate-a-new-improvement-on-a-classic-drug-family-for-the-treatment-of-partial-onset-seizures
#16
REVIEW
Graciana L Galiana, Angela C Gauthier, Richard H Mattson
Eslicarbazepine acetate is a new anti-epileptic drug belonging to the dibenzazepine carboxamide family that is currently approved as adjunctive therapy and monotherapy for partial-onset (focal) seizures. The drug enhances slow inactivation of voltage-gated sodium channels and subsequently reduces the activity of rapidly firing neurons. Eslicarbazepine acetate has few, but some, drug-drug interactions. It is a weak enzyme inducer and it inhibits cytochrome P450 2C19, but it affects a smaller assortment of enzymes than carbamazepine...
July 24, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28740261/sustained-efficacy-of-closed-loop-electrical-stimulation-for-long-term-treatment-of-absence-epilepsy-in-rats
#17
Gábor Kozák, Antal Berényi
Closed-loop brain stimulation is a promising alternative to treat drug-resistant epilepsies. In contrast to optogenetic interventions, transcranial electrical stimulation (TES) does not require cellular modification of neurons to be effective, and it is less invasive compared to deep brain stimulation. Furthermore, on-demand TES of targeted brain regions allows the potential for normal function of these networks during interictal periods, a possibility that is eliminated by resective surgical treatment approaches...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733972/expression-and-function-of-the-metabotropic-purinergic-p2y-receptor-family-in-experimental-seizure-models-and-patients-with-drug-refractory-epilepsy
#18
Mariana Alves, Rosa Gomez-Villafuertes, Norman Delanty, Michael A Farrell, Donncha F O'Brien, Maria Teresa Miras-Portugal, Miguel Diaz Hernandez, David C Henshall, Tobias Engel
OBJECTIVE: ATP is released into the extracellular space during pathologic processes including increased neuronal firing. Once released, ATP acts on P2 receptors including ionotropic P2X and metabotropic P2Y receptors, resulting in changes to glial function and neuronal network excitability. Evidence suggests an involvement of P2Y receptors in the pathogenesis of epilepsy, but there has been no systematic effort to characterize the expression and function of the P2Y receptor family during seizures and in experimental and human epilepsy...
July 21, 2017: Epilepsia
https://www.readbyqxmd.com/read/28729934/effect-of-lamotrigine-on-seizure-development-in-a-rat-pentylenetetrazole-kindling-model
#19
Yishu Chen, Xiaokuo He, Qianqian Sun, Ziyan Fang, Liemin Zhou
INTRODUCTION: Epileptogenesis is a process of seizure development. Lamotrigine is a novel antiepileptic drug which is also used for antiepileptogenic research. Kindling models are recommended as potentially useful tools for antiepileptogenic treatment discovery. However, previous studies demonstrated that the antiepileptogenic effect of lamotrigine is controversial in the electrical kindling model. Chemical kindling such as with pentylenetetrazole is another kindling model. The aims of this study were to examine whether lamotrigine could prevent the development of seizure in pentylenetetrazole kindling rats...
July 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28728911/effects-of-riluzole-on-spinal-seizure-like-activity-in-the-brainstem-spinal-cord-preparation-of-newborn-rat
#20
Shih Tien Lin, Masayuki Ohbayashi, Toshinori Yamamoto, Hiroshi Onimaru, Mari Kogo
Riluzole blocks persistent Na(+) current, inhibits generation of neuronal bursts and decreases glutamate-induced excitotoxicity. In previous studies of respiratory activity, riluzole suppressed inspiratory-related burst generation activity in rat slice or en bloc preparations. We examined riluzole's effects on inspiratory burst generation and drug-induced seizure-like activity in newborn rat en bloc preparations. Medulla-spinal cord preparations from postnatal day 0-3 Wistar rats were isolated under deep isoflurane anesthesia and were superfused with artificial cerebrospinal fluid equilibrated with 95% O2 and 5% CO2, pH 7...
July 17, 2017: Neuroscience Research
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