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Drug induced seizure

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https://www.readbyqxmd.com/read/28715490/patterns-of-care-of-brain-tumor-related-epilepsy-a-cohort-study-done-in-italian-epilepsy-center
#1
Marta Maschio, Ettore Beghi, Marina M L Casazza, Gabriella Colicchio, Cinzia Costa, Paola Banfi, Stefano Quadri, Paolo Aloisi, Anna Teresa Giallonardo, Carla Buttinelli, Giada Pauletto, Salvatore Striano, Andrea Salmaggi, Riccardo Terenzi, Ornella Daniele, Giovanni Crichiutti, Francesco Paladin, Rosario Rossi, Giulia Prato, Federico Vigevano, Roberto De Simone, Federica Ricci, Marina Saladini, Fabrizio Monti, Susanna Casellato, Tiziano Zanoni, Diana Giannarelli, Giuliano Avanzini, Umberto Aguglia
Epilepsy is the most common comorbidity in patients with brain tumors. STUDY AIMS: To define characteristics of brain tumor-related epilepsy (BTRE) patients and identify patterns of care. Nationwide, multicenter retrospective cohort study. Medical records of BTRE patients seen from 1/1/2010 to 12/31/2011, followed for at least one month were examined. Information included age, sex, tumor type/treatments, epilepsy characteristics, antiepileptic drugs (AEDs). Time to modify first AED due to inefficacy and/or toxicity was assessed with the Kaplan-Meier method and Cox proportional hazard models were used to identify predictors of treatment outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28702712/evaluation-of-the-anticonvulsant-effect-of-brilliant-blue-g-a-selective-p2x7-receptor-antagonist-in%C3%A2-the-iv-ptz-maximal-electroshock-and-6%C3%A2-hz-induced-seizure-tests-in-mice
#2
Dorota Nieoczym, Katarzyna Socała, Piotr Wlaź
Epilepsy is one of the most common neurological disorders which is diagnosed in around 65 million people worldwide. Clinically available antiepileptic drugs fail to control epileptic activity in about 30% of patients and they are merely symptomatic treatments and cannot cure or prevent epilepsy. There remains a need for searching new therapeutic strategies for epileptic disorders. The P2X7 receptor has been recently investigated as a new target in epilepsy treatment. Preclinical studies revealed that P2X7 receptor antagonists have anticonvulsant properties in some models of epilepsy...
July 12, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28697084/posterior-fracture-dislocation-of-the-shoulder-a-modified-mclaughlin-procedure
#3
Sanjit R Konda, Nina Fisher, Mark Gage, Kenneth A Egol
PURPOSE: Bilateral posterior fracture dislocation is a rare injury commonly associated with seizures. When the humeral head defect (reverse Hill-Sachs lesion) is between 20% and 45%, operative fixation using a modified McLaughlin procedure is recommended. This video demonstrates a case of bilateral posterior fracture dislocation after a drug-induced seizure treated with a modified McLaughlin procedure. METHODS: The original McLaughlin procedure involved transfer of the subscapularis tendon from the lesser tuberosity to the reverse Hill-Sachs defect...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28696947/regional-blocks-carried-out-during-general-anesthesia-or-deep-sedation-myths-and-facts
#4
Peter Marhofer
PURPOSE OF REVIEW: More patients will accept regional blocks if these are performed during sedation or general anesthesia. This review discusses regional anesthesia in sedated or anesthetized patients. RECENT FINDINGS: As complications of regional blocks are rare, regional anesthesia can be considered aswell-tolerated. Awake patients will notice only a minority of needle-to-nerve contacts, that renders the notion of a 'live monitor' obsolete. Using high-resolution ultrasound, the needle can be advanced to an extraepineural position for injection, thus strictly avoiding needle-to-nerve contact or intraepineural injection of local anesthetic...
July 10, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28694171/repeated-dose-28-day-oral-toxicity-study-of-deae-dextran-in-mice-an-advancement-in-safety-chemotherapeutics
#5
Anita K Bakrania, Bhavesh C Variya, Prem Madan, Snehal S Patel
Cancer has emerged as a global threat with challenges for safe chemotherapeutics. Most of the currently available anti-cancer drugs exhibit significant toxicity. Amongst novel agents, interferons have exhibited anti-proliferative and cytoprotective roles. However, due to stability drawbacks of interferons, we have identified an interferon inducer DEAE-Dextran, which resolves the stability issues. Based on the previous history of toxicity pertaining to the current chemotherapeutic agents, it is equally essential to determine the safety of DEAE-Dextran...
July 8, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28691158/anticonvulsant-effect-of-cannabinoid-receptor-agonists-in-models-of-seizures-in-developing-rats
#6
Megan N Huizenga, Evan Wicker, Veronica C Beck, Patrick A Forcelli
OBJECTIVE: Although drugs targeting the cannabinoid system (e.g., CB1 receptor agonists) display anticonvulsant efficacy in adult animal models of seizures/epilepsy, they remain unexplored in developing animal models. However, cannabinoid system functions emerge early in development, providing a rationale for targeting this system in neonates. We examined the therapeutic potential of drugs targeting the cannabinoid system in three seizure models in developing rats. METHODS: Postnatal day (P) 10, Sprague-Dawley rat pups were challenged with the chemoconvulsant methyl-6,7-dimethoxy-4-ethyl-beta-carboline-3-carboxylate (DMCM) or pentylenetetrazole (PTZ), after treatment with either CB1/2 mixed agonist (WIN 55,212-2), CB1 agonist (arachidonyl-2'-chloroethylamide [ACEA]), CB2 agonist (HU-308), CB1 antagonist (AM-251), CB2 antagonist (AM-630), fatty acid amide hydrolase inhibitor (URB-597), or G protein-coupled receptor 55 agonist (O-1602)...
July 10, 2017: Epilepsia
https://www.readbyqxmd.com/read/28687854/neuroprotective-effects-of-vitamin-d-alone-or-in-combination-with-lamotrigine-against-lithium-pilocarpine-model-of-status-epilepticus-in-rats
#7
Amal M Mahfoz, Ali F Abdel-Wahab, Mohamed A Afify, Naiyer Shahzad, Ibrahim A A Ibrahim, Naser A ElSawy, Ghazi A Bamagous, Saeed S Al Ghamdi
Status epilepticus (SE) is considered one of the major serious forms of epilepsy with high mortality rate. Since the currently available antiepileptic drugs have low efficacy and high adverse effects, new more efficient and safe therapies are critically needed. There is increasing evidence supporting dietary and alternative therapies for epilepsy, including the ketogenic diet, modified Atkins diet, and omega-3 fatty acids. Recent studies have shown significant prophylactic and therapeutic potential of vitamin D (vit-D) use in many neurological disorders...
July 7, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28682924/lamotrigine-drug-interactions-in-combination-therapy-and-the-influence-of-therapeutic-drug-monitoring-on-clinical-outcomes-of-adult-patients
#8
Milan Grundmann, Blanka Koristkova, Hana Brozmanova, Ivana Kacirova
BACKGROUND: The aim was to study the impact of therapeutic drug monitoring (TDM) on patients on lamotrigine (LTG) therapy and the evaluation of possible drug interactions, especially in triple antiepileptic drug combinations. METHODS: During the period of 2001-2014, 3118 pre-dose samples were taken from 1137 patients >15 years of age as part of their routine TDM. Drug interactions were evaluated using calculation of LTG clearance. RESULTS: Valproic acid (VPA) decreased LTG clearance by 66% in bitherapy, and by 35% and 31% in triple therapy with carbamazepine (CBZ) and phenytoin (PHT) respectively...
July 3, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28676923/biochemical-and-pharmacological-role-of-a1-adenosine-receptors-and-their-modulation-as-novel-therapeutic-strategy
#9
Katia Varani, Fabrizio Vincenzi, Stefania Merighi, Stefania Gessi, Pier Andrea Borea
Adenosine, the purine nucleoside, mediates its effects through activation of four G-protein coupled adenosine receptors (ARs) named as A1, A2A, A2B and A3. In particular, A1ARs are distributed through the body, primarily inhibitory in the regulation of adenylyl cyclase activity and able to reduce the cyclic AMP levels. Considerable advances have been made in the pharmacological and molecular characterization of A1ARs, which had been proposed as targets for the discovery and drug design of antagonists, agonists and allosteric enhancers...
July 5, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28675559/neuroinflammation-in-epileptogenesis-insights-and-translational-perspectives-from-new-models-of-epilepsy
#10
Melissa L Barker-Haliski, Wolfgang Löscher, H Steve White, Aristea S Galanopoulou
Animal models have provided a wealth of information on mechanisms of epileptogenesis and comorbidogenesis, and have significantly advanced our ability to investigate the potential of new therapies. Processes implicating brain inflammation have been increasingly observed in epilepsy research. Herein we discuss the progress on animal models of epilepsy and comorbidities that inform us on the potential role of inflammation in epileptogenesis and comorbidity pathogenesis in rodent models of West syndrome and the Theiler's murine encephalomyelitis virus (TMEV) mouse model of viral encephalitis-induced epilepsy...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28675360/four-years-of-hepatic-transplantation-in-the-republic-of-moldova
#11
Vladimir Hotineanu, Adrian Hotineanu, Serghei Burgoci, Grigore Ivancov, Natalia Taran, Angela Peltec, Dumitru Cazacu, Vitalie Sîrghi
Ever since the first liver transplant in the Republic of Moldova in 2013 we have performed 30 liver transplantations, the first having been performed in collaboration with the surgical team from Romania, led by Professor Irinel Popescu. The serious deficit of available cadaveric organs has forced us to begin with right hemi-liver transplantation from a living donor. In one third of liver transplantations we used right hemi-liver graft from a living donor, and in 2/3 of cases whole liver graft was harvested from brain-dead donors...
May 2017: Chirurgia
https://www.readbyqxmd.com/read/28666936/human-induced-pluripotent-stem-cell-hipsc-derived-neurons-respond-to-convulsant-drugs-when-co-cultured-with-hipsc-derived-astrocytes
#12
Misawa Niki Ishii, Koji Yamamoto, Masanobu Shoji, Asano Asami, Yuji Kawamata
Accurate risk assessment for drug-induced seizure is expected to be performed before entering clinical studies because of its severity and fatal damage to drug development. Induced pluripotent stem cell (iPSC) technology has allowed the use of human neurons and glial cells in toxicology studies. Recently, several studies showed the advantage of co-culture system of human iPSC (hiPSC)-derived neurons with rodent/human primary astrocytes regarding neuronal functions. However, the application of hiPSC-derived neurons for seizure risk assessment has not yet been fully addressed, and not at all when co-cultured with hiPSC-derived astrocytes...
June 27, 2017: Toxicology
https://www.readbyqxmd.com/read/28665933/preventing-harmful-effects-of-epileptic-seizures-on-cerebrovascular-functions-in-newborn-pigs-does-sex-matter
#13
Jianxiong Liu, Massroor Pourcyrous, Alex L Fedinec, Charles W Leffler, Helena Parfenova
BACKGROUND: The potential contribution of sex-related variables to cerebrovascular functions in neonates remains elusive. Newborn piglets provide a translationally relevant model for studying the effects of seizures in the neonatal brain. The present study investigated whether sex differences contribute to cerebrovascular functions in healthy and epileptic newborn pigs. METHODS: Epileptic seizures were induced in female and male newborn pigs by bicuculline. An antioxidant drug, the carbon monoxide-releasing molecule CORM-A1, was administered enterally before or during seizures...
June 30, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28660738/pseudolymphoma-in-a-cat-on-phenobarbital-treatment
#14
J Lieser, C S Schwedes
A two-year-old female spayed domestic shorthair cat was presented with apathy, inappetence and generalised lymphadenomegaly. Anamnestic data included a generalised seizure disorder and phenobarbital treatment started one month before presentation. Routine blood analysis revealed only mild abnormalities and FeLV and FIV tests were negative. Both popliteal lymph nodes were aspirated and cytology was consistent with reactive lymph node hyperplasia. PCR for antigen receptor rearrangement testing diagnosed a polyclonal cell population...
June 29, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28657174/effect-of-the-leaf-essential-oil-from-cinnamosma-madagascariensis-danguy-on-pentylenetetrazol-induced-seizure-in-rats
#15
Rianasoambolanoro Rakotosaona, Emmanuel Randrianarivo, Philippe Rasoanaivo, Marcello Nicoletti, Giovanni Benelli, Filippo Maggi
In the Malagasy traditional practices, smoke from burning leaves of Cinnamosma madagascariensis Danguy is inhaled to treat brain disorders such as dementia, epilepsy and headache. In the present work we have evaluated the in vivo anticonvulsant effects of the essential oil from leaves of C. madagascariensis (CMEO). CMEO was isolated by steam distillation. The anticonvulsant activity of CMEO (0.4 and 0.8 mL/kg bw) administered subcutaneously was evaluated on pentylenetetrazol (PTZ)-induced seizures in Wistar rats; diazepam was used as positive control...
June 28, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28656093/berberine-attenuates-convulsing-behavior-and-extracellular-glutamate-and-aspartate-changes-in-4-aminopyridine-treated-rats
#16
Hamid Reza Sadeghnia, Ali Reza Taji, Fatemeh Forouzanfar, Hossein Hosseinzadeh
OBJECTIVES: K+ channel blocker 4-aminopyridine (4-AP) stimulates the release of glutamate from nerve terminals and induces seizures. Berberine as a potential herbal drug exerts several pharmacological actions on the central nervous system including anxiolytic, anticonvulsant, and neuroprotective properties. The present study aimed to investigate the effect of berberine on seizure onset and time course of the extracellular levels of excitatory amino acids (EAA), glutamate and aspartate, changes produced by 4-AP in rat hippocampus...
May 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28652224/focal-epilepsy-with-paroxysmal-pain-due-to-somatic-injury
#17
Tao Yu, Chang Liu, Guojun Zhang, Liang Qiao, Duanyu Ni, Yuping Wang, Yongjie Li
We present two cases with paroxysmal pain that developed after a somatic injury to the trunk. The main characteristic of the episodes was paroxysmal severe pain, mainly located in the original region of somatic injury, with ipsilateral tonic or dystonic behaviour. The clinical characteristics supported a diagnosis of focal epilepsy. Both scalp EEG and MEG findings suggested epileptic activities on the contralateral central cortex. The focal seizures had a good response to antiepileptic drugs. It is hypothesized that peripheral somatic injuries can modify cortical excitability and lead to plastic changes in the sensory/motor cortex, ultimately resulting in focal seizures...
June 1, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28649495/non-hyperammonaemic-valproate-encephalopathy-after-20%C3%A2-years-of-treatment
#18
Elizabeth Caruana Galizia, Jeremy D Isaacs, Hannah R Cock
Sodium valproate is a commonly used antiseizure drug with broad indications for different seizuretypes and epilepsy syndromes. Well-recognised side effects include weight gain, tremor, dizziness, and unsteadiness. Non-hyperammonaemic parkinsonism, with or without cognitive impairment, is a rare adverse effect of sodium valproate. We present the case of a sixty year-old lady with a generalized seizure disorder, treated with phenytoin, valproate, lamotrigine and clonazepam. Following withdrawal of phenytoin she developed an akinetic-rigid syndrome, with ataxia and marked cognitive impairment...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28648954/fosphenytoin-induced-purple-glove-syndrome-a-case-report
#19
Joseph W Newman, Joseph R Blunck, Ronald K Fields, John E Croom
BACKGROUND: Purple glove syndrome (PGS) is a poorly understood severe adverse drug reaction that is typically associated with intravenous phenytoin administration. Although fosphenytoin is thought to circumvent this risk of PGS, we reveal a rare case of PGS in a patient treated with fosphenytoin therapy. CASE SUMMARY: A 71-year-old male with history of epilepsy was admitted for seizures and traumatic brain injury and intravenous fosphenytoin and levetiracetam were initiated...
June 19, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28646254/cytoprotective-effects-of-diallyl-trisulfide-against-valproate-induced-hepatotoxicity-new-anticonvulsant-strategy
#20
Ahmed A Shaaban, Dina S El-Agamy
Sodium valproate (VP) is an important antiepileptic drug, although it can produce deleterious hepatotoxic reactions. Diallyl trisulfide (DATS) is the principle component of garlic oil that possesses antioxidant properties. This study explored the potential hepatoprotective activity of DATS against VP-induced hepatic damage and its underlying mechanisms. In addition, the study assessed the effect of DATS on VP antiepileptic activity. Rats were given DATS once daily at two different doses along with VP for 2 weeks...
June 23, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
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