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https://www.readbyqxmd.com/read/28449218/development-and-pharmacologic-characterization-of-the-rat-6-hz-model-of-partial-seizures
#1
Cameron S Metcalf, Peter J West, Kyle E Thomson, Sharon F Edwards, Misty D Smith, H S White, Karen S Wilcox
OBJECTIVE: The mouse 6 Hz model of psychomotor seizures is a well-established and commonly used preclinical model for antiseizure drug (ASD) discovery. Despite its widespread use both in the identification and differentiation of novel ASDs in mice, a corresponding assay in rats has not been developed. We established a method for 6 Hz seizure induction in rats, with seizure behaviors similar to those observed in mice including head nod, jaw clonus, and forelimb clonus. METHODS: A convulsive current that elicits these seizure behaviors in 97% of rats (CC97 ) was determined using a Probit analysis...
April 27, 2017: Epilepsia
https://www.readbyqxmd.com/read/28446038/clinical-criteria-of-positional-vertical-nystagmus-in-vestibular-migraine
#2
Mohamed Mohamed El-Badry, Hesham Samy, Abdel Mageed Kabel, Fatma Mohamed Rafat, Hossam Sanyelbhaa
OBJECTIVES: The goal of this study was to identify key diagnostic criteria for positional vertical nystagmus caused by vestibular migraine (VM). MATERIALS AND METHODS: The study group included a case series of 13 subjects with VM (10 females and three males with age 38.6 ± 8.9 years); they were complaining of positional vertigo. They were subjected to thorough audiovestibular examination and treated with cinnarizine or topiramate Results: The entire study group demonstrated positional vertical nystagmus (eight patients had up-beating nystagmus and five patients had down-beating nystagmus)...
April 27, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28434203/topiramate-monotherapy-for-juvenile-myoclonic-epilepsy
#3
REVIEW
Jia Liu, Lu-Ning Wang, Yu-Ping Wang
BACKGROUND: Topiramate is a newer broad-spectrum antiepileptic drug (AED). Some studies have shown the benefits of topiramate monotherapy in the treatment of juvenile myoclonic epilepsy (JME). However, there are no current systematic reviews to determine the efficacy and tolerability of topiramate monotherapy in people with JME. This is an updated version of the original Cochrane Review published in Issue 12, 2015. OBJECTIVES: To evaluate the efficacy and tolerability of topiramate monotherapy in the treatment of JME...
April 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28428093/migraine-prevention-using-different-frequencies-of-transcutaneous-occipital-nerve-stimulation-a-randomized-controlled-trial
#4
Yinglu Liu, Zhao Dong, Rongfei Wang, Ran Ao, Xun Han, Wenjing Tang, Shengyuan Yu
OBJECTIVE: To evaluate the efficacy and tolerability of transcutaneous occipital nerve stimulation (tONS) in patients with migraine, and to explore whether different tONS frequencies influenced treatment effectiveness. METHODS: This was a randomized, controlled trial of tONS for prevention of migraine. Patients were randomized to one of five therapeutic groups prior to treatment for 1 month. Groups A-C received tONS at different frequencies (2 Hz, 100 Hz, and 2/100 Hz), group D underwent sham tONS intervention, and group E received topiramate orally...
April 17, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28424953/treatment-update-of-chronic-migraine
#5
REVIEW
Soo-Jin Cho, Tae-Jin Song, Min Kyung Chu
PURPOSE OF REVIEW: Although chronic migraine (CM) is a common disorder that severely impacts patient functioning and quality of life, it is usually underdiagnosed, and treatment responses often remain poor even after diagnosis. In addition, effective treatment options are limited due to the rarity of randomized controlled trials (RCTs) involving patients with CM. In the present review, we discuss updated pharmacological, non-pharmacological, and neurostimulation treatment options for CM...
June 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28421338/tailoring-pharmacotherapy-to-specific-eating-behaviours-in-obesity-can-recommendations-for-personalised-therapy-be-made-from-the-current-data
#6
Carl A Roberts, Paul Christiansen, Jason C G Halford
Pharmacotherapy provides an adjunct to behaviour modification in the management of obesity. There are a number of new drug therapies purportedly targeting appetite; liraglutide, and bupropion/naltrexone, which are European Medicines Agency and US Food and Drug Administration (FDA) approved, and lorcaserin and phentermine/topiramate, which have FDA approval only. Each of the six drugs, used singly or in combination, has distinct pharmacological, and presumably distinct behavioural, mechanisms of action, thus the potential to provide defined therapeutic options to personalise the management of obesity...
April 19, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28409827/topiramate-for-essential-tremor
#7
REVIEW
Elisa Bruno, Alessandra Nicoletti, Graziella Quattrocchi, Roberta Allegra, Graziella Filippini, Carlo Colosimo, Mario Zappia
BACKGROUND: Essential tremor (ET) is one of the most common movement disorders. The management is primarily based on pharmacological agents and in clinical practice propranolol and primidone are considered the first-line therapy. However, these treatments can be ineffective in 25% to 55% of people and are frequently associated with serious adverse events (AEs). For these reasons, it is worthwhile evaluating other treatments for ET. Topiramate has been suggested as a potentially useful agent for the treatment of ET but there is uncertainty about its efficacy and safety...
April 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28405886/pharmacokinetic-variability-of-drugs-used-for-prophylactic-treatment-of-migraine
#8
REVIEW
Peer Tfelt-Hansen, Frederik Nybye Ågesen, Agniezka Pavbro, Jacob Tfelt-Hansen
In this review, we evaluate the variability in the pharmacokinetics of 11 drugs with established prophylactic effects in migraine to facilitate 'personalized medicine' with these drugs. PubMed was searched for 'single-dose' and 'steady-state' pharmacokinetic studies of these 11 drugs. The maximum plasma concentration was reported in 248 single-dose and 115 steady-state pharmacokinetic studies, and the area under the plasma concentration-time curve was reported in 299 single-dose studies and 112 steady-state pharmacokinetic studies...
April 12, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28405574/formulation-and-evaluation-of-transdermal-drug-delivery-of-topiramate
#9
Suneetha Cherukuri, Uma Rajeswari Batchu, Kiranmai Mandava, Vidhyullatha Cherukuri, Koteswara Rao Ganapuram
BACKGROUND: Transdermal drug delivery system (TDDS) was designed to sustain the release and improve the bioavailability of drug and patient compliance. Among the various types of transdermal patches, matrix dispersion type systems disperse the drug in the solvent along with the polymers and solvent is allowed to evaporate forming a homogeneous drug-polymer matrix. The objective of the present study was to design and formulate TDDS of topiramate (TPM) and to evaluate their extended release in vitro and ex vivo...
January 2017: International Journal of Pharmaceutical Investigation
https://www.readbyqxmd.com/read/28392927/liraglutide-for-weight-management-a-critical-review-of-the-evidence
#10
A Mehta, S P Marso, I J Neeland
OBJECTIVE: To review the efficacy, safety, and clinical applicability of liraglutide for weight management from phase III clinical trials. METHODS: A search of the English language literature was performed using PubMed search terms: "liraglutide", "glucagon-like peptide-1 receptor agonist", and "randomized clinical trial". Articles and bibliographies relevant to the subject were reviewed and additional references known to the authors were included. RESULTS: Five randomized, placebo-controlled trials of liraglutide for weight management were identified...
March 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/28387107/-bilateral-angle-closure-glaucoma-induced-by-topiramate
#11
O Beaudry, V Goncette, N Collignon
Topiramate (TPM) is a drug used in migraine prophylaxis. It is involved in the bilateral angle-closure glaucoma due to idiosyncratic response. This side effect is rare but can lead to irreversible vision loss if it is not recognized in time and if it is not managed immediately by an ophthalmologist.
November 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28382861/metabolism-of-drugs-used-in-the-therapy-of-seizures-an-analytical-point-of-view-part-1
#12
Roberto Mandrioli, Laura Mercolini
BACKGROUND: Seizures are aetiologically and clinically heterogeneous neurological disorders that are currently treated using a wide array of drugs, belonging to equally heterogeneous chemical classes. Some of them are known as "antiepileptic drugs" (AEDs), due to their main field of use, while others (such as benzodiazepines) are frequently used for other conditions as well as for seizures. Due to their different chemical properties and mechanisms of activity, the metabolic characteristics of anti-seizure drugs can vary widely, also producing big differences in terms of safety, efficacy and therapeutic suitability...
April 6, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28378293/pharmacotherapy-of-obesity-clinical-trials-to-clinical-practice
#13
REVIEW
Kishore M Gadde, Y Pritham Raj
PURPOSE OF REVIEW: This review provides an overview of the current state of drug therapy for obesity, with a focus on four new drug therapies-lorcaserin, phentermine/topiramate, naltrexone/bupropion, and liraglutide 3.0 mg-which have been approved by the US Food and Drug Administration (FDA) for long-term management of obesity since 2012. Topics discussed in this paper include rationale for pharmacotherapy, history of antiobesity drugs, and efficacy and safety data from randomized controlled trials with implications for clinical practice...
May 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28378057/tolerability-of-new-antiepileptic-drugs-a-network-meta-analysis
#14
REVIEW
Gaetano Zaccara, Fabio Giovannelli, Filippo Sean Giorgi, Valentina Franco, Sara Gasparini, Umberto Benedetto
OBJECTIVE: The objective of this study was to perform a comparative assessment of tolerability of all licensed new antiepileptic drugs (AEDs) through a network meta-analysis (NMA) including all placebo-controlled double-blind clinical trials (RCTs) in all conditions in which these drugs have been tested. METHODS: NMA with a frequentist approach was used to compare proportions of patients withdrawing because of adverse events (AEs). Analyses were conducted for all therapeutic doses pooled and specifically for high therapeutic doses...
April 4, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28370224/do-antiepileptic-drugs-increase-the-risk-of-infectious-diseases-a-meta-analysis-of-placebo-controlled-studies
#15
Gaetano Zaccara, Fabio Giovannelli, Filippo Sean Giorgi, Valentina Franco, Sara Gasparini, Francesco Mandò Tacconi
AIMS: Experimental studies show that some antiepileptic drugs (AEDs) may modify natural immune defenses, thus influencing the risk of developing infectious diseases. The aim of this meta-analysis was to explore whether AEDs as a class of drugs or singularly may increase risk of infectious diseases. METHODS: A meta-analysis of all randomized, double-blind, placebo-controlled trials (RCTs) investigating any AED in any condition was performed. All terms which could be coded in the System Organ Classes (SOCs) of "infections and infestations" using the Medical Dictionary for Regulatory Activities (MedDRA) were recorded...
March 31, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28364656/effects-of-antiepileptic-drugs-on-thyroid-hormone-function-in-epilepsy-patients
#16
Fu-Yuan Shih, Yao-Chung Chuang, Ming-Jung Chuang, Yan-Ting Lu, Wan-Chen Tsai, Ting-Ying Fu, Meng-Han Tsai
PURPOSE: Patients with epilepsy are frequently required to take antiepileptic drugs (AEDs) for a long period of time. Many studies have shown that AEDs have a negative influence on endocrine function including the thyroid gland, however the risk factors for the development of low thyroid function in these patients are unclear. This study aimed to determine the potential risk factors of low thyroid function in patients with epilepsy. METHOD: This was a cross-sectional study including 298 patients with epilepsy...
March 19, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28355041/clozapine-augmentation-with-antiepileptic-drugs-for-treatment-resistant-schizophrenia-a-meta-analysis-of-randomized-controlled-trials
#17
Wei Zheng, Yu-Tao Xiang, Xin-Hu Yang, Ying-Qiang Xiang, Jose de Leon
OBJECTIVE: To meta-analyze randomized controlled trials (RCTs) for the efficacy and safety of adjunctive antiepileptic drugs (AEDs) to augment clozapine therapy for treatment-resistant schizophrenia. DATA SOURCES: The search included databases in English (PubMed, PsycINFO, Embase, and Cochrane Library databases and the Cochrane Controlled Trials Register) and in Chinese (China Journal Net [CJN], WanFang, and China Biology Medicine [CBM]) and references from retrieved articles...
March 28, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28351170/effect-of-topiramate-on-choroidal-thickness-and-anterior-chamber-parameters-in-the-treatment-of-patients-with-migraine
#18
Mustafa Gok, Ozdemir Ozdemir
OBJECTIVE: To investigate the effects of topiramate on choroidal thickness and anterior chamber parameters using optical coherence tomography in the treatment of patients with migraine. METHODS: A total of 22 eyes of 22 adults (12 females, 10 males) diagnosed with migraine and scheduled to topiramate treatment for pain control were recruited in this prospective study. Choroidal thickness (CT), anterior chamber depth (ACD), anterior chamber angle (ACA), spherical refractive equivalent (SphEq) and intraocular pressure (IOP) measurements were recorded at baseline (prior the topiramate therapy), first and second month visits for the statistical analysis...
April 19, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28349276/novel-phenotypes-of-pyridox-am-ine-5-phosphate-oxidase-deficiency-and-high-prevalence-of-c-445_448del-mutation-in-chinese-patients
#19
Jiao Xue, Xingzhi Chang, Yuehua Zhang, Zhixian Yang
To analyze the clinical and genetic characteristics of Chinese patients with pyridox(am)ine-5'-phosphate oxidase (PNPO) deficiency. The clinical presentations and the responses to treatments were analyzed in 4 patients. Blood and urinary metabolic screenings, electroencephalogram (EEG), brain magnetic resonance imaging (MRI) and epilepsy-related genes detection were performed in all patients. Patient 1 and 2 were identical twin brothers, who were born at 35(+5) w gestation with a sign of encephalopathy. Their seizures started within the first day and could not be controlled by pyridoxine or pyridoxal-5'-phosphate (PLP) completely...
March 27, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28346953/lennox-gastaut-syndrome-a-state-of-the-art-review
#20
Mario Mastrangelo
Lennox-Gastaut syndrome (LGS) is a severe age-dependent epileptic encephalopathy usually with onset between 1 and 8 years of age. Functional neuroimaging studies recently introduced the concept of Lennox-Gastaut as "secondary network epilepsy" resulting from dysfunctions of a complex system involving both cortical and subcortical structures (default-mode network, corticoreticular connections, and thalamus). These dysfunctions are produced by different disorders including hypoxic-ischemic encephalopathies, meningoencephalitis, cortical malformations, neurocutaneous disorders, or tumors...
March 27, 2017: Neuropediatrics
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