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https://www.readbyqxmd.com/read/28437285/monitoring-protein-unbound-valproic-acid-serum-concentrations-in-clinical-practice
#1
Eveline Wallenburg, Bas Klok, Karin de Jong, Monique de Maat, Nielka van Erp, Sonja Stalpers-Konijnenburg, Guus Essink, Matthijs van Luin
BACKGROUND: Valproic acid (VPA) is an effective anti-epileptic drug and mood stabilizer. A key characteristic of VPA is its high and saturable protein binding at higher concentrations. While the unbound concentration of VPA is responsible for its pharmacological activity, total drug concentrations are monitored in routine clinical practice. Therapeutic drug monitoring (TDM) of unbound VPA is recommended for specific clinical situations. The goal of this study was to evaluate TDM requests for unbound VPA in clinical practice...
April 6, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28433578/a-novel-device-for-continuous-long-term-electroencephalogram-recording-and-drug-administration-in-mice-with-a-nice-powerful-and-sophisticated-wired-system
#2
Shigeru Watanabe, Masanori Saito, Masaki Soma, Hitoshi Miyaoka, Masami Takahashi
BACKGROUND: To elucidate mechanisms of epileptogenesis and epileptic maturation, and to develop new AEDs, it is indispensable to administer various drugs and to examine their effects on EEG over a long period of observation. NEW METHOD: We constructed a device for the continuous measurement of electroencephalography (EEG) and the infusion of anti-epileptic drugs over a prolonged period of time in moving mice. The system includes a slip ring and a swivel to prevent twisting of the recording cable and infusion tube, respectively...
April 19, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28428755/pharmacological-analysis-of-the-anti-epileptic-mechanisms-of-fenfluramine-in-scn1a-mutant-zebrafish
#3
Jo Sourbron, Ilse Smolders, Peter de Witte, Lieven Lagae
Dravet syndrome (DS) is a genetic encephalopathy that is characterized by severe seizures and prominent co-morbidities (e.g., physical, intellectual disabilities). More than 85% of the DS patients carry an SCN1A mutation (sodium channel, voltage gated, type I alpha subunit). Although numerous anti-epileptic drugs have entered the market since 1990, these drugs often fail to adequately control seizures in DS patients. Nonetheless, current clinical data shows significant seizure reduction in DS patients treated with the serotonergic (5-hydroxytryptamine, 5-HT) drug fenfluramine (FA)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28425415/drug-induced-liver-injury-at-a-tertiary-hospital-in-india-etiology-clinical-features-and-predictors-of-mortality
#4
Chetan Rathi, Nirav Pipaliya, Ruchir Patel, Meghraj Ingle, Aniruddha Phadke, Prabha Sawant
INTRODUCTION AND AIMS: Drug-induced liver injury (DILI) is rare; however, it is one of the important causes of acute liver failure which results in significant morbidity or mortality. MATERIAL AND METHODS: Patients with suspected DILI were enrolled based on predefined criteria and followed up for at least 6 months or until normalization of liver tests. Causality assessment was done by applying the Roussel Uclaf Causality Assessment Method model. RESULTS: We collected data from 82 individuals diagnosed with DILI at our hospital from 2014 through 2015 (41 men; median age, 38 years)...
May 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28416780/new-onset-epilepsy-in-the-elderly-clinical-radiological-and-electroencephalographic-features-and-treatment-responses
#5
Erum M Shariff, Fahd A AlKhamis
OBJECTIVE: To evaluate new onset epilepsy characteristics, etiology, radiological and electroencephalographic features and to document treatment response in the elderly. METHODS: This was a retrospective study carried out in King Fahd Medical City, Riyadh, Kingdom of Saudi Arabia, from 2010 to 2013. Medical records were searched to recruit patients. Hundred and nineteen patients were enrolled who fulfill the inclusion criteria. Clinical data with respect to seizure semiology, etiology, electroencephalographic findings, radiological findings, co-morbidities, and anti-epileptic drug (AED) therapy were assessed...
April 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28412154/quality-indicator-for-epilepsy-treatment-15-quiet-15-intervening-after-recurrent-seizures-in-the-elderly
#6
Jerzy P Szaflarski, Roy C Martin, Edward Faught, Ellen Funkhouser, Joshua Richman, Kendra Piper, Lucia Juarez, Chen Dai, Maria Pisu
In this study, we examined the provision of care to older adults with epilepsy and compliance with the "Quality Indicator for Epilepsy Treatment 15" (QUIET-15) measure. We analyzed 2008-2010, 5% random sample of Medicare beneficiaries augmented with data from all beneficiaries who identified as a minority with claims related to seizures (780.3x) or epilepsy (345.xx). Of 36,912 identified epilepsy cases, 12.6% had ≥1 emergency room (ER) visit for seizure(s). For those who presented to ER, among those taking anti-epileptic drugs (AEDs), AED was changed in 15...
April 12, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28398022/teratology-of-valproic-acid-an-updated-review-of-the-possible-mediating-mechanisms
#7
Adalisa Ponzano, Gian M Tiboni
Valproic acid (VPA) is an anti-epileptic drug (AED) which is currently being investigated for its potential application in the treatment of several types of cancers, including solid and non-solid tumor. It is well known that prenatal exposure to VPA largely increases the risk for malformations and other developmental disorders. This review concentrates on clinical and experimental data on congenital anomalies attributed to maternal VPA exposure during. Particular emphasis is paid to the potential mechanisms underlying VPA-induced malformations...
April 10, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28388948/investigating-the-potential-of-the-anti-epileptic-drug-imepitoin-as-a-treatment-for-co-morbid-anxiety-in-dogs-with-idiopathic-epilepsy
#8
Rowena M A Packer, Luisa De Risio, Holger A Volk
BACKGROUND: Behavioural changes associated with idiopathic epilepsy (IE) have been identified in dogs, with fear and anxiety-related problems seen in both drug-naïve dogs and dogs treated with anti-epileptic drugs (AEDs). Treating anxiety-related behaviour in dogs with IE may be challenging, as seizures are a contraindication for many conventional anxiolytic drugs. In addition, many dogs with IE are already treated with AEDs to reduce their seizure frequency, which may have negative effects if used in polytherapy...
April 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28384919/unusual-presentation-of-porencephalic-cyst-in-an-adult
#9
Abel Thomas Oommen, Ganeswar Sethy, Noas Tobias Minz, Jogendra Patra, Swayang Sudha Panda
Porencephalic cyst is quite a rare entity in adults with only a few cases reported so far. It is usually congenital and seen in neonates. Here, we report a 28-year-old female who presented with post-ictal confusion following a new onset of focal seizures with secondary generalisation. She was diagnosed to have porencephalic cyst in left posterior parietal lobe on brain imaging. She was started on anti-epileptic drugs and is on follow up.
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28373803/evaluation-of-glutamic-acid-decarboxylase-antibody-levels-in-patients-with-juvenile-myoclonic-epilepsy-and-mesial-temporal-lobe-epilepsy-with-hippocampal-sclerosis
#10
Ayten Ceyhan Dirican, Sevilay Elibirlik, Ayhan Köksal, Musa Öztürk, Yavuz Altunkaynak, Sevim Baybaş, Ahmet Dirican
INTRODUCTION: Several clinical studies have been conducted to investigate the role of autoantibodies and immunological mechanisms in the etiology of treatment-resistant epilepsy in recent years. Some immunological treatments have been suggested as a result of these studies. In this study, we aimed to investigate the role of autoimmunity in partial and idiopathic generalized epilepsy and determine the relationship between drug resistance and autoimmune antibodies. METHODS: Twenty-eight patients (24 treatment-responsive and 4 treatment-resistant) with juvenile myoclonic epilepsy (JME), 26 patients with mesial temporal lobe epilepsy with hippocampal sclerosis (MTLEHS) resistant to antiepileptic drug treatment, and 26 age-matched healthy control subjects were included in a two-year cross sectional study...
September 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28366991/supplementation-with-carnitine-reduces-the-severity-of-constipation-a-retrospective-study-of-patients-with-severe-motor-and-intellectual-disabilities
#11
Shinya Murata, Keisuke Inoue, Tomoki Aomatsu, Atsushi Yoden, Hiroshi Tamai
Carnitine is an essential nutrient for the mitochondrial transport of fatty acids. Carnitine deficiency causes a variety of symptoms in multiple organs. Patients with severe motor and intellectual disabilities often have carnitine deficiency. This study aimed to determine the correlation between constipation and carnitine deficiency in them. Patients with severe motor and intellectual disabilities at our hospital were retrospectively reviewed. The correlation between level of free carnitine and severity of constipation was examined...
March 2017: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/28353375/determination-of-serum-carbamazepine-concentration-using-dried-blood-spot-specimens-for-resource-limited-settings
#12
Saibal Das, Denise H Fleming, Binu S Mathew, Blessed Winston A, Appaswamy T Prabhakar, Mathew Alexander
OBJECTIVES: Carbamazepine (CBZ) is a commonly used anti-epileptic in rural hospitals in India. These hospitals lack the facilities to measure CBZ concentration; however, in larger hospitals this is performed using high performance liquid chromatography (HPLC). Dried blood spot (DBS) represents a feasible matrix for safe transportation by post/courier. This study was to determine whether the concentration of CBZ in serum can be predicted from that measured in DBS using an inexpensive HPLC method and inexpensive standard filter paper...
April 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28339635/the-impact-of-zonisamide-on-the-development-and-course-of-alcohol-dependence-in-rabbits-a-pharmaco-eeg-study
#13
Agata Krupa-Burtnik, Ewa Zwierzynska, Anna Kordala, Boguslawa Pietrzak
Aims: Zonisamide is a new anti-epileptic drug whose mechanism of action is associated with neurotransmission systems also involved in the pathogenesis of addiction. Recently, the role of memory processes and the hippocampus (Hp) is underlined in dependence. In our previous study, we determined that zonisamide decreases changes in hippocampal bioelectric activity induced by a single dose of ethanol. Methods: This study uses a pharmaco-EEG method to examine the impact of zonisamide on the development and course of alcohol dependence in rabbits...
February 17, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28332054/a-mesiotemporal-lobe-epilepsy-mouse-model
#14
Duveau Venceslas, Roucard Corinne
Among the different forms of epilepsies, mesiotemporal lobe epilepsy (MTLE) is one of the most common and represents the main pharmaco-resistant form of epilepsy. There is therefore an urgent need to better understand this form of epilepsy to develop better anti-epileptic drugs. Many rodent models are mimicking some aspects of the human temporal lobe epilepsy but only few are addressing most of the human mesiotemporal lobe epilepsy. In this article, we describe the main characteristics of a mouse of model of mesial temporal lobe epilepsy...
March 23, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28327947/factors-associated-with-pre-and-postoperative-seizures-in-1033-patients-undergoing-supratentorial-meningioma-resection
#15
William C Chen, Stephen T Magill, Dario J Englot, Joe D Baal, Sagar Wagle, Jonathan W Rick, Michael W McDermott
BACKGROUND: Risk factors for pre- and postoperative seizures in supratentorial meningiomas are understudied compared to other brain tumors. OBJECTIVE: To report seizure frequency and identify factors associated with pre- and postoperative seizures in a large single-center population study of patients undergoing resection of supratentorial meningioma. METHODS: Retrospective chart review of 1033 subjects undergoing resection of supratentorial meningioma at the author's institution (1991-2014)...
March 15, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28325299/potent-anti-seizure-effects-of-locked-nucleic-acid-antagomirs-targeting-mir-134-in-multiple-mouse-and-rat-models-of-epilepsy
#16
Cristina R Reschke, Luiz F Almeida Silva, Braxton A Norwood, Ketharini Senthilkumar, Gareth Morris, Amaya Sanz-Rodriguez, Ronán M Conroy, Lara Costard, Valentin Neubert, Sebastian Bauer, Michael A Farrell, Donncha F O'Brien, Norman Delanty, Stephanie Schorge, R Jeroen Pasterkamp, Felix Rosenow, David C Henshall
Current anti-epileptic drugs (AEDs) act on a limited set of neuronal targets, are ineffective in a third of patients with epilepsy, and do not show disease-modifying properties. MicroRNAs are small noncoding RNAs that regulate levels of proteins by post-transcriptional control of mRNA stability and translation. MicroRNA-134 is involved in controlling neuronal microstructure and brain excitability and previous studies showed that intracerebroventricular injections of locked nucleic acid (LNA), cholesterol-tagged antagomirs targeting microRNA-134 (Ant-134) reduced evoked and spontaneous seizures in mouse models of status epilepticus...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28323007/inhibition-of-microglial-activation-with-minocycline-at-the-intrathecal-level-attenuates-sympathoexcitatory-and-proarrhythmogenic-changes-in-rats-with-chronic-temporal-lobe-epilepsy
#17
Amol M Bhandare, Komal Kapoor, Kim L Powell, Emma Braine, Pablo Casillas-Espinosa, Terence J O'Brien, Melissa M J Farnham, Paul M Pilowsky
The incidence of sudden unexpected death in epilepsy (SUDEP) is highest in people with chronic and drug-resistant epilepsy. Chronic spontaneous recurrent seizures cause cardiorespiratory autonomic dysfunctions. Pituitary adenylate cyclase-activating polypeptide (PACAP) is neuroprotective, whereas microglia produce both pro- and anti-inflammatory effects in the CNS. During acute seizures in rats, PACAP and microglia produce sympathoprotective effect at the intermediolateral cell column (IML), whereas their action on the presympathetic rostral ventrolateral medulla (RVLM) neurons mediates proarrhythmogenic changes...
March 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28315449/prophylactic-levetiracetam-for-seizure-control-after-cranioplasty-a-multicenter-prospective-controlled-study
#18
Shuli Liang, Ping Ding, Shaohui Zhang, Junchen Zhang, Jiwu Zhang, Yuping Wu
PURPOSE: To study the efficacy and safety of prophylactic levetiracetam (LEV) administration in adults undergoing cranioplasty. METHODS: Two hundred adults undergoing cranioplasty were prospectively enrolled and randomly divided into LEV group (prophylactic LEV for 24 weeks) and control group (no prophylactic anti-epileptic drugs). The patients' demographic and clinical characteristics, occurrence of postoperative seizure, changes in intelligence quotient (IQ), memory quotient (MQ), and activities of daily living (ADL) scores, as well as postoperative hospital stay side effects, were all analyzed at 2-, 24-, and 48-week follow-up visits...
March 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28295557/parachlorophenylalanine-induced-5-ht-depletion-alters-behavioral-and-brain-neurotransmitters-levels-in-6-hz-psychomotor-seizure-model-in-mice
#19
Kausar Jahan, Krishna K Pillai, Divya Vohora
The present study was designed to investigate the role of serotonin and other neurotransmitters namely dopamine (DA), histamine, nor-epinephrine (NE), glutamate, and γ-aminobutyric acid (GABA) in the 6-Hz-induced psychomotor seizures in Swiss albino mice. Parachlorophenylalanine (PCPA, 300 mg/kg/day, i.p for 3 days)-treated mice were given 6-Hz stimulation. Sodium valproate (SVP) (200 mg/kg/day, p.o for 3 days) was used as a reference antiepileptic drug. The behavioral changes induced by 6 Hz including increased rearing and grooming, Straub's tail, behavioral arrest, stun position were amplified by PCPA...
March 10, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28284381/mechanisms-of-drug-induced-interstitial-nephritis
#20
REVIEW
Rajeev Raghavan, Saed Shawar
Drug-induced acute interstitial nephritis (DI-AIN) is a drug hypersensitivity reaction (DHR) that manifests 7 to 10 days after exposure to the culprit drug. DHRs account for fewer than 15% of reported adverse drug reactions. The kidneys are susceptible to DHR because: (1) the high renal blood flow whereby antigens are filtered, secreted, or concentrated, and (2) it is a major site of excretion for drugs and drug metabolites. More than 250 different drugs from various classes have been incriminated as causative agents of DI-AIN, the third most common cause of acute kidney injury in the hospital...
March 2017: Advances in Chronic Kidney Disease
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