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https://www.readbyqxmd.com/read/28223849/review-about-gabapentin-misuse-interactions-contraindications-and-side-effects
#1
REVIEW
Gabriel C Quintero
The current work is targeted to review the risks of gabapentin misuse, its potential interactions with other drugs, side effects and use contraindications. This review consists of a total of 99 biographical references (from the year 1983 to 2016). A publication search of PubMed was performed from January 1983 to December 2016. It included animal studies, clinical studies, case studies and reviews related to gabapentin misuse, potential interactions, side effects and use contraindications. The search terms were gabapentin, anticonvulsant and antiepileptic...
2017: Journal of Experimental Pharmacology
https://www.readbyqxmd.com/read/28222319/survey-of-the-diagnostic-and-therapeutic-approach-to-new-onset-refractory-status-epilepticus
#2
Christian M Cabrera Kang, Nicolas Gaspard, Suzette M LaRoche, Brandon Foreman
PURPOSE: We conducted a survey of providers to assess for practice patterns in diagnosing and treating new-onset refractory status epilepticus (NORSE). NORSE is the occurrence of prolonged seizures that are not responsive to initial therapies in otherwise healthy individuals without obvious cause on initial presentation. This entity is thought to have multiple etiologies, including autoimmune. METHOD: A 29-question electronic survey was sent to providers included in the Neurocritical Care Society emailing list...
February 9, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28221394/sv%C3%A3-r-reaktion-av-antiepileptikum-hos-kvinna-med-ursprung-fr%C3%A3-n-asien-karbamazepininducerat-stevens%C3%A2-johnsons-syndrom-toxisk-epidermal-nekrolys-vanligare-hos-personer-med-viss-asiatisk-h%C3%A3-rkomst
#3
Stavroula Anastasopoulou, Magdalena Komuda, Benjamin Presman, Maria Karlsson, Torbjörn Tomson
Stevens-Johnson syndrome/toxic epidermal necrolysis after initiation of carbamazepine in a HLA-B*15:02 gene carrier - screening in risk patients is recommended A 32-year-old woman, adopted from Indonesia, developed Stevens-Johnsons syndrome (SJS)/toxic epidermal necrolysis (TEN) after initiating carbamazepine treatment for epilepsy. SJS and TEN are rare but life-threatening adverse effects of carbamazepine, with a 72-100% risk of occurrence in patients carrying the HLA-B*15:02 allele. The HLA-B*15:02 allele is common in several Asian groups but less prevalent in European populations...
February 21, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28218773/risk-factors-for-birth-defects
#4
Benjamin S Harris, Katherine C Bishop, Hanna R Kemeny, Jennifer S Walker, Eleanor Rhee, Jeffrey A Kuller
Importance: Major congenital abnormalities, or birth defects, carry significant medical, surgical, cosmetic, or lifestyle consequences. Such abnormalities may be syndromic, involving multiple organ systems, or can be isolated. Overall, 2% to 4% of live births involve congenital abnormalities. Risk factors for birth defects are categorized as modifiable and nonmodifiable. Modifiable risk factors require thorough patient education/counseling. The strongest risk factors, such as age, family history, and a previously affected child, are usually nonmodifiable...
February 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28212902/intrauterine-valproate-exposure-is-associated-with-alterations-in-hippocampal-cell-numbers-and-folate-metabolism-in-a-rat-model-of-valproate-teratogenicity
#5
Alexander Semmler, Christian Frisch, Christiane Bleul, Desiree Smith, Laurent Bigler, Jean-Christophe Prost, Henk Blom, Michael Linnebank
PURPOSE: Valproate is one of the most commonly used anticonvulsive drugs. Despite its significant benefits, the teratogenicity of valproate is a relevant problem in the treatment of women of childbearing age. In addition to major congenital malformations, such as neural tube defects, reduced intelligence and attention after intrauterine valproate exposure are reported. Until now the mechanisms of teratogenicity of VPA are poorly understood and concepts how to reduce valproate teratogenicity are lacking...
January 27, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28203564/neurotoxicity-following-the-ingestion-of-bilimbi-fruit-averrhoa-bilimbi-in-an-end-stage-renal-disease-patient-on-hemodialysis
#6
Camille Pereira Caetano, Cinara Barros de Sá, Bruno Antônio Paixão Faleiros, Marcelo Fonseca Coutinho Fernandes Gomes, Edna Regina Silva Pereira
INTRODUCTION: The toxic effects of the ingestion of star fruit (Averrhoa carambola) in chronic kidney disease patients are well described in the literature. Recently, the compound caramboxin has been isolated, explaining the mechanisms of its neurotoxicity. Bilimbi fruit belongs to the family Oxalidaceae, Averrhoa bilimbi species, and exhibits similar biochemical characteristics to star fruit. OBJECTIVE: To report the case of a patient with chronic kidney disease who developed a seizure disorder after the ingestion of bilimbi fruit...
January 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28203102/the-hla-a-31-01-allele-influence-on-carbamazepine-treatment
#7
REVIEW
Vincent Lai Ming Yip, Munir Pirmohamed
Carbamazepine (CBZ) is an effective anticonvulsant that can sometimes cause hypersensitivity reactions that vary in frequency and severity. Strong associations have been reported between specific human leukocyte antigen (HLA) alleles and susceptibility to CBZ hypersensitivity reactions. Screening for HLA-B*15:02 is mandated in patients from South East Asia because of a strong association with Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). HLA-A*31:01 predisposes to multiple phenotypes of CBZ hypersensitivity including maculopapular exanthema, hypersensitivity syndrome, and SJS/TEN in a range of populations including Europeans, Japanese, South Koreans and Han Chinese, although the effect size varies between the different phenotypes and populations...
2017: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/28202327/synthesis-and-evaluation-of-anticonvulsant-properties-of-new-n-mannich-bases-derived-from-pyrrolidine-2-5-dione-and-its-3-methyl-3-isopropyl-and-3-benzhydryl-analogs
#8
Sabina Rybka, Jolanta Obniska, Anna Rapacz, Barbara Filipek, Paweł Żmudzki
The aim of this paper was to describe the synthesis of a library of 28 new 1,3-substituted pyrrolidine-2,5-dione as potential anticonvulsant agents. The anticonvulsant activity was evaluated using three acute models of seizures in mice (MES-maximal electroshock, scPTZ-subcutaneous pentylenetetrazole, and 6Hz-psychomotor seizure tests). The neurotoxicity was determined by rotarod test. The most promising compound was found to be N-[{morpholin-1-yl}-methyl]-3-benzhydryl-pyrrolidine-2,5-dione (15), as it was active in the MES (ED50=41...
February 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28199834/early-administration-of-gabapentinoids-improves-motor-recovery-after-human-spinal-cord-injury
#9
Freda M Warner, Jacquelyn J Cragg, Catherine R Jutzeler, Frank Röhrich, Norbert Weidner, Marion Saur, Doris D Maier, Christian Schuld, Armin Curt, John K Kramer
The anticonvulsant pregabalin promotes neural regeneration in a mouse model of spinal cord injury (SCI). We have also previously observed that anticonvulsants improve motor outcomes following human SCI. The present study examined the optimal timing and type of anticonvulsants administered in a large, prospective, multi-center, cohort study in acute SCI. Mixed-effects regression techniques were used to model total motor scores at 1, 3, 6, and 12 months post injury. We found that early (not late) administration of anticonvulsants significantly improved motor recovery (6...
February 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/28198441/pdi-regulates-seizure-activity-via-nmda-receptor-redox-in-rats
#10
Ji Yang Kim, Ah-Rhem Ko, Hye-Won Hyun, Su-Ji Min, Ji-Eun Kim
Redox modulation of cysteine residues is one of the post-translational modifications of N-methyl-D-aspartate receptor (NMDAR). Protein disulfide isomerases (PDI), an endoplasmic reticulum (ER) chaperone, plays a crucial role in catalyzing disulfide bond formation, reduction, and isomerization. In the present study, we found that PDI bound to NMDAR in the normal hippocampus, and that this binding was increased in chronic epileptic rats. In vitro thiol reductase assay revealed that PDI increased the amount of thiols on full-length recombinant NR1 protein...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28192273/gabaa-receptor-subtypes-in-the-mouse-brain-regional-mapping-and-diazepam-receptor-occupancy-by-in-vivo-18-f-flumazenil-pet
#11
Adrienne Müller Herde, Dietmar Benke, William T Ralvenius, Linjing Mu, Roger Schibli, Hanns Ulrich Zeilhofer, Stefanie D Krämer
Classical benzodiazepines, which are widely used as sedatives, anxiolytics and anticonvulsants, exert their therapeutic effects through interactions with heteropentameric GABAA receptors composed of two α, two β and one γ2 subunit. Their high affinity binding site is located at the interface between the γ2 and the adjacent α subunit. The α-subunit gene family consists of six members and receptors can be homomeric or mixed with respect to the α-subunits. Previous work has suggested that benzodiazepine binding site ligands with selectivity for individual GABAA receptor subtypes, as defined by the benzodiazepine-binding α subunit, may have fewer side effects and may even be effective in diseases, such as schizophrenia, autism or chronic pain, that do not respond well to classical benzodiazepines...
February 10, 2017: NeuroImage
https://www.readbyqxmd.com/read/28188402/-alzheimer-s-disease-and-epilepsy
#12
R Haussmann, T Mayer, W Schrempf, M Donix
Data regarding the incidence and prevalence of epileptic seizures in Alzheimer's disease show great variability and are clinically underestimated due to their atypical symptomatology. Considering their considerable negative effects on cognition and activities of daily living, epileptic seizures need to be correctly treated. Hypotheses with respect to the pathogenetic mechanisms and associations between Alzheimer's disease and epilepsy are mostly derived from animal experiments. The causal connections are so far insufficiently understood...
February 10, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28188357/analgesic-antiallodynic-and-anticonvulsant-activity-of-novel-hybrid-molecules-derived-from-n-benzyl-2-2-5-dioxopyrrolidin-1-yl-propanamide-and-2-2-5-dioxopyrrolidin-1-yl-butanamide-in-animal-models-of-pain-and-epilepsy
#13
Anna Rapacz, Krzysztof Kamiński, Jolanta Obniska, Paulina Koczurkiewicz, Elżbieta Pękala, Barbara Filipek
The purpose of the present study was to examine the analgesic activity of six novel hybrid molecules, which demonstrated in the previous research anticonvulsant activity in the maximal electroshock seizure (MES) and subcutaneous pentylenetetrazole seizure (scPTZ) tests in mice. The antinociceptive properties were estimated in three models of pain in mice-the hot plate test, the formalin test, and in the oxaliplatin-induced neuropathy. Moreover, extended anticonvulsant studies were carried out and the antiseizure activity was investigated in the 6-Hz test...
February 10, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28186869/sedative-hypnotic-drug-withdrawal-syndrome-recognition-and-treatment
#14
Cynthia Santos, Ruben E Olmedo
Sedative-hypnotic drugs include gamma-Aminobutyric acid (GABA)ergic agents such as benzodiazepines, barbiturates, gamma-Hydroxybutyric acid [GHB], gamma-Butyrolactone [GBL], baclofen, and ethanol. Chronic use of these substances can cause tolerance, and abrupt cessation or a reduction in the quantity of the drug can precipitate a life-threatening withdrawal syndrome. Benzodiazepines, phenobarbital, propofol, and other GABA agonists or analogues can effectively control symptoms of withdrawal from GABAergic agents...
March 2017: Emergency Medicine Practice
https://www.readbyqxmd.com/read/28184334/mixed-states-in-bipolar-disorder-etiology-pathogenesis-and-treatment
#15
REVIEW
Ather Muneer
Many bipolar disorder patients exhibit mixed affective states, which portend a generally more severe illness course and treatment resistance. In the previous renditions of Diagnostic and Statistical Manual mixed states were narrowly defined in the context of bipolar I disorder, but with the advent of DSM-5 the term "mixed episode" was dropped and replaced by "mixed features" specifier which could be broadly applied to manic, hypomanic and depressive episodes in both the bipolar spectrum and major depressive disorders...
January 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/28182128/co-prescription-of-opioids-with-benzodiazepine-and-other-co-medications-among-opioid-users-differential-in-opioid-doses
#16
Che Suraya Zin, Fadhilah Ismail
PURPOSE: This study investigated the patterns of opioid co-prescription with benzodiazepine and other concomitant medications among opioid users. Opioid dose in each type of co-prescription was also examined. PATIENTS AND METHODS: This cross-sectional study was conducted among opioid users receiving concomitant medications at an outpatient tertiary hospital setting in Malaysia. Opioid prescriptions (morphine, fentanyl, oxycodone, dihydrocodeine and tramadol) that were co-prescribed with other medications (opioid + benzodiazepines, opioid + antidepressants, opioid + anticonvulsants, opioid + antipsychotics and opioid + hypnotics) dispensed from January 2013 to December 2014 were identified...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28182114/evolution-of-cerebral-atrophy-in-a-patient-with-super-refractory-status-epilepticus-treated-with-barbiturate-coma
#17
Christopher R Newey, Pravin George, Premkumar Nattanmai, Christine Ahrens, Stephen Hantus, Aarti Sarwal
Introduction. Status epilepticus is associated with neuronal breakdown. Radiological sequelae of status epilepticus include diffusion weighted abnormalities and T2/FLAIR cortical hyperintensities corresponding to the epileptogenic cortex. However, progressive generalized cerebral atrophy from status epilepticus is underrecognized and may be related to neuronal death. We present here a case of diffuse cerebral atrophy that developed during the course of super refractory status epilepticus management despite prolonged barbiturate coma...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28182033/preliminary-screening-of-a-classical-ayurvedic-formulation-for-anticonvulsant-activity
#18
Arnab Dhar, Santosh Kumar Maurya, Ashish Mishra, Gireesh Kumar Singh, Manoj Kumar Singh, Ankit Seth
BACKGROUND: Epilepsy is a serious and complex central nervous system disorder associated with recurrent episodes of convulsive seizures due to the imbalance between excitatory (glutamatergic) and inhibitory (GABAergic) neurotransmitters level in the brain. The available treatments are neither competent to control the seizures nor prevent progress of disease. Since ages, Herbal medicines have remained important sources of medicines in many parts of world which is evidenced through their uses in traditional systems of medicine i...
July 2016: Ancient Science of Life
https://www.readbyqxmd.com/read/28177665/possible-involvement-of-atp-sensitive-potassium-channels-in-the-antidepressant-like-effects-of-gabapentin-in-mice-forced-swimming-test
#19
Sattar Ostadhadi, Reyhaneh Akbarian, Abbas Norouzi-Javidan, Vahid Nikoui, Samira Zolfaghari, Mohsen Chamanara, Ahmad-Reza Dehpour
Gabapentin as an anticonvulsant drug also has beneficial effects in treatment of depression. Previously we showed that acute administration of gabapentin produced an antidepressant-like effect in the mouse forced swimming test (FST) by a mechanism involves the inhibition of the nitric oxide (NO). Considering the involvement of NO in adenosine triphosphate (ATP)-sensitive potassium channels (KATP), in the present study we investigated the involvement of KATP channels in antidepressant-like effect of gabapentin...
January 29, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28177664/trimetazidine-potentiates-the-antiepileptic-activity-and-ameliorates-the-metabolic-changes-associated-with-pentylentetrazole-kindling-in-rats-treated-with-valproic-acid
#20
Amina Ahmed Sedky, Osama Mahmod Elserafy, Olfat A Hassan, Hala Salah Abdel Kawy, Amany Hasanin, Mona Hussein Raafat
Oxidative stress is implicated in epileptogenesis as well as in the metabolic changes associated with increased risk of atherosclerotic vascular disease in epilepsy. The present work investigated the impact of the antioxidants trimetazidine (TMZ) on the antiepileptic activity of valproic acid (VAP) and on the metabolic and histological changes in hippocampal, aortic and hepatic tissues associated with epilepsy and/or VPA. Rats were divided into: Non-Pentylentetrazole (PTZ) group; subdivided into: control and VPA treated groups, PTZ-treated group subdivided into: PTZ, PTZ/VPA, PTZ/TMZ, PTZ/VPA+TMZ groups...
January 29, 2017: Canadian Journal of Physiology and Pharmacology
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