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Levetiracetam

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https://www.readbyqxmd.com/read/29344468/levetiracetam-induced-skin-hyperpigmentation-an-extremely-rare-undesirable-side-effect
#1
Hussein Algahtani, Siham Marghalani, Mohamed Satti, Bader Shirah
Levetiracetam is one of the newer second-generation antiepileptic drugs with multiple mechanisms of action. Cutaneous side effects due to levetiracetam are rarely reported in the literature. In this article, we describe a patient with skin hyperpigmentation due to the treatment with levetiracetam with complete resolution after discontinuation of the medication. In addition, we review the topic and hypothesize the mechanism behind this rare complication. To the best of our knowledge, this is the first report of skin hyperpigmentation as a side effect of levetiracetam in the literature...
December 2017: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/29336297/add-on-perampanel-and-aggressive-behaviour-in-severe-drug-resistant-focal-epilepsies
#2
S Juhl, G Rubboli
This study aimed to investigate the incidence of aggressiveness in patients with severe drug-refractory focal epilepsy (DRE) who started perampanel (PER) as add-on treatment, and to identify possible predisposing factors. Data on 49 consecutive patients with severe DRE who initiated PER were retrospectively collected. Twelve of the 49 patients experienced aggressiveness as adverse event related to PER treatment, one third of them on low (2-4 mg/day) PER dosages. PER was discontinued in 10/12 patients because of aggressive behaviors...
October 2017: Functional Neurology
https://www.readbyqxmd.com/read/29331845/effect-of-levetiracetam-on-extracellular-amino-acid-levels-in-the-dorsal-hippocampus-of-rats-with-temporal-lobe-epilepsy
#3
Pichardo Macías Luz Adriana, Ramírez Mendiola Blanca Alcira, Contreras García Itzel Jatziri, Zamudio Hernández Sergio Roberto, Chávez Pacheco Juan Luis, Sánchez Huerta Karla Berenice, Mendoza Torreblanca Julieta Griselda
Levetiracetam (LEV) is an anticonvulsant drug with a unique mechanism of action that is not completely understood. However, its activity profile may involve effects on excitatory and/or inhibitory neurotransmission since the primary target of LEV, synaptic vesicle protein 2A, is ubiquitously expressed in all types of synaptic vesicles. Therefore, the objective of the present study was to explore the effect of LEV (300 mg/kg/day for one week, administered via osmotic mini-pumps) on neurotransmitter release and its probable selective effect on extracellular gamma-amino butyric acid (GABA), glutamate (Glu), aspartate (Asp), glutamine (Gln), taurine (Tau) and glycine (Gly) concentrations (using in vivo microdialysis under basal and high-K+ conditions) in the dorsal hippocampus (DH), a region that undergoes major synaptic changes during epilepsy...
January 5, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29322654/brand-to-generic-levetiracetam-switching-a-four-years-prospective-observational-real-life-study
#4
Michele Trimboli, Emilio Russo, Laura Mumoli, Giovanni Tripepi, Francesco Fortunato, Giovanni Mastroianni, Francesca Abate, Giovambattista De Sarro, Antonio Gambardella, Angelo Labate
BACKGROUND: The purpose of this study was to determine whether the switching from branded levetiracetam (LEV; ® Keppra) to a LEV generic equivalent product (® Matever) in an epilepsy cohort could result adequate in terms of seizures control and tolerability. METHODS: To be eligible for the study, patients were taking ® Keppra as monotherapy or polytherapy for at least six months. Since March 2013 to April 2017, patients were proposed to switch to ® Matever as part of their follow-up...
January 11, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29317959/impact-of-oxidative-stress-and-newer-antiepileptic-drugs-on-the-albumin-and-cortisol-value-in-severe-motor-and-intellectual-disabilities-with-epilepsy
#5
Masahito Morimoto, Toshiaki Hashimoto, Taisuke Kitaoka, Shojiro Kyotani
Background: Epilepsy is a common complication in patients with severe motor and intellectual disabilities (SMID). There are no reports as yet of the effects of these medications in vivo other than their epileptic efficacy. The purpose of this study was to clarify the effects of the newer antiepileptic drugs (AEDs) on the blood biochemical parameters and oxidative stress in SMID with epilepsy by comparing the therapeutic effects between a group of patients receiving lamotrigine (LTG) and levetiracetam (LEV) in addition to the conventional AEDs (newer AED group) and a group receiving conventional AEDs alone (old AED group)...
February 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29313528/b-cell-aplasia-and-hypogammaglobulinemia-associated-with-levetiracetam
#6
Hulya Ozdemir, Sua Sumer, Hakan Karabagli, Gokhan Akdemir, A Zafer Caliskaner, Hasibe Artac
Levetiracetam (LEV) is a second-generation antiepileptic drug approved for the treatment of several types of epilepsy. We report a 45-year-old female who developed hypogammaglobulinemia and B cell aplasia during LEV treatment. The Naranjo probability score for an adverse drug reaction was 6. After LEV discontinuation, the number of B cells gradually increased and reached normal levels within two months. This case suggests that monitoring of immunoglobulin levels and lymphocyte subsets analysis is important in patients treated with LEV, especially in cases of prolonged infections...
January 9, 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29297840/management-of-a-reeve-s-muntjac-muntiacus-reevesi-with-seizures-using-levetiracetam
#7
Emily R Blatt, Kathryn E Seeley, Mathew C Lovett, Randall E Junge
This report describes the diagnosis and management of idiopathic epilepsy in a 4-yr-old intact female Reeve's muntjac ( Muntiacus reevesi). The patient was initially witnessed to have isolated paroxysmal events consistent with epileptic seizures (altered consciousness, lateral recumbency, tonic/clonic movement of limbs) lasting less than 3 min with an immediate return to normal consciousness. The seizure frequency increased to >3 seizures within 24 hr and phenobarbital 3 mg/kg orally every 12 hr was started...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29291205/topiramate-induced-peripheral-neuropathy-a-case-report-and-review-of-literature
#8
Sherifa Ahmed Hamed
Drug-induced peripheral neuropathy had been rarely reported as an adverse effect of some antiepileptic drugs (AEDs) at high cumulative doses or even within the therapeutic drug doses or levels. We describe clinical and diagnostic features of a patient with peripheral neuropathy as an adverse effect of chronic topiramate (TPM) therapy. A 37-year-old woman was presented for the control of active epilepsy (2010). She was resistant to some AEDs as mono- or combined therapies (carbamazepine, sodium valproate, levetiracetam, oxcarbazepine and lamotrigine)...
December 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29287214/favorable-adverse-effect-profile-of-brivaracetam-vs-levetiracetam-in-a-preclinical-model
#9
Nathalie T Sanon, Jonathan Gagné, Daniele C Wolf, Soumia Aboulamer, Ciprian M Bosoi, Alexe Simard, Estelle Messiet, Sébastien Desgent, Lionel Carmant
Levetiracetam (LEV), and its newer selective analog brivaracetam (BRV), are two seizure medications that share an innovative mechanism of action targeting the Synaptic Vesicle Protein 2A (SV2A), altering neurotransmitter release and decreasing seizure frequency. Behavioral changes are the most significant adverse effects reported by patients taking LEV. We hypothesize that BRV, the more potent SV2A analog, could exert less behavioral side effects, as it requires lower doses than LEV. Using Kainic Acid (KA)-treated and control rats, we measured adverse behavioral effect profiles of LEV, BRV, or Saline, on social and nonsocial behaviors...
December 26, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29243813/antiepileptic-drug-monotherapy-for-epilepsy-a-network-meta-analysis-of-individual-participant-data
#10
REVIEW
Sarah J Nevitt, Maria Sudell, Jennifer Weston, Catrin Tudur Smith, Anthony G Marson
BACKGROUND: Epilepsy is a common neurological condition with a worldwide prevalence of around 1%. Approximately 60% to 70% of people with epilepsy will achieve a longer-term remission from seizures, and most achieve that remission shortly after starting antiepileptic drug treatment. Most people with epilepsy are treated with a single antiepileptic drug (monotherapy) and current guidelines from the National Institute for Health and Care Excellence (NICE) in the United Kingdom for adults and children recommend carbamazepine or lamotrigine as first-line treatment for partial onset seizures and sodium valproate for generalised onset seizures; however a range of other antiepileptic drug (AED) treatments are available, and evidence is needed regarding their comparative effectiveness in order to inform treatment choices...
December 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29237665/intermittent-catatonia-and-complex-automatisms-caused-by-frontal-lobe-epilepsy-in-dementia
#11
Robynne George, Alex Langford
An 82-year-old man was admitted to the emergency department following bizarre behaviour. Police had noticed him driving erratically through his village. He did not stop when instructed, drove slowly home and appeared 'vacant' on questioning. While in hospital, he had approximately 15 episodes of catatonia, involving rigidity, negativism, mutism except echolalia and perseveration, automatic obedience and utilisation phenomena, lasting 2-20 min each. Between episodes, he was amnestic but otherwise well. Electroencephalography demonstrated bifrontal slowing with left-sided emphasis, and captured two focal onset partial seizures with the clinical correlate of the syndrome described above...
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29227795/divergent-effects-of-levetiracetam-and-tiagabine-against-spontaneous-seizures-in-adult-rats-following-neonatal-hypoxia
#12
Raymond Dunn, Bridget N Queenan, Daniel T S Pak, Patrick A Forcelli
Animal models are valuable tools for screening novel therapies for patients who suffer from epilepsy. However, a wide array of models are necessary to cover the diversity of human epilepsies. In humans, neonatal hypoxia (or hypoxia-ischemia) is one of the most common causes of epilepsy early in life. Hypoxia-induced seizures (HS) during the neonatal period can also lead to spontaneous seizures in adulthood. This phenomenon, i.e., early-life hypoxia leading to adult epilepsy - is also seen in experimental models, including rats...
December 5, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29220742/meta-analyses-of-newer-antiepileptic-drugs-as-adjunct-for-treatment-of-focal-epilepsy-in-children
#13
Nurul-Ain Mohd-Tahir, Shu-Chuen Li
AIM: This study conducted a systematic review evaluating the effectiveness of newer antiepileptic drugs (AEDs) (namely, lamotrigine, levetiracetam, topiramate, vigabatrin, zonisamide, oxcarbazepine, perampanel, gabapentin, and stiripentol) as add-on for treatment of focal epilepsy in children. METHODS: Articles were retrieved from EMBASE, Medline and Cochrane Library from inception to January 2016. Treatment outcomes were analysed based on responder, seizure-free, withdrawal and adverse event rates...
November 22, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29217400/biocatalytic-production-of-s-2-aminobutanamide-by-a-novel-d-aminopeptidase-from-brucella-sp-with-high-activity-and-enantioselectivity
#14
Xiao-Ling Tang, Xia-Feng Lu, Zhe-Ming Wu, Ren-Chao Zheng, Yu-Guo Zheng
As the important chiral building block of levetiracetam, the synthesis of (S)-2-aminobutanamide has attracted a great deal of attention. The d-aminopeptidase catalyzed kinetic resolution of 2-aminobutanamide was demonstrated as an effective strategy for (S)-2-aminobutanamide production. In this study, a novel d-aminopeptidase from Brucella sp. (Bs-Dap) was screened and systematically characterized. The enzyme exhibited maximum activity at 45°C, pH 8.0 and it showed relatively low Km value toward 2-aminobutanamide, indicating its high affinity to the substrate...
December 5, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/29213044/-the-course-and-development-of-epilepsy-in-patients-with-typical-variant-of-rett-syndrome-and-mutations
#15
M Yu Bobylova, I V Ivanova, I V Nekrasova, O A Pylaeva, K Yu Mukhin, A A Kholin, Ek S Iljina, A V Kulikov, El S Iljina, Yu E Nesterovsky
AIM: To study the anamnesis, clinical state, electro-encephalographic and brain MRI characteristics in patients with Rett syndrome (МЕСР2) and epilepsy. MATERIAL AND METHODS: Eleven female patients, aged from 3 to 23 years, with Rett syndrome and MeCP2 mutations were studied. The study continued for 10 years (2006-2015). Assessment of neurological and mental status, night sleep video-EEG monitoring, MRI were performed. RESULTS AND CONCLUSION: Epilepsy was diagnosed in six cases (54...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29213035/-problems-of-juvenile-myoclonic-epilepsy-a-view-through-the-prism-of-time
#16
V A Karlov, V S Zolovkina
The authors present a comparative analysis of the results of the study of 72 adolescent patients with juvenile myoclonic epilepsy (JME), which were published in 2010, and a new sample of patients over the last 5 years with the publications of domestic and foreign authors. Difficult clinical cases are described. These data indicate positive shifts in the diagnosis and treatment of JME. However, the question of diagnosis is still a hard problem for neurologists. The questions to be resolved are: gender aspect of the disease, to what extent levetiracetam could be a drug of first choice and to what extent valproats could be replaced; monitoring of children born to mothers with JME, a role of paternal inheritance...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29210977/influence-of-comedication-on-levetiracetam-pharmacokinetics
#17
Azucena Aldaz, Natalia Alzueta, César Viteri
BACKGROUND: Evaluate the effect of concomitant antiepileptic therapy on levetiracetam (LEV) pharmacokinetics. METHODS: A 6-year retrospective observational study. Patients were grouped according to the antiepileptic drug (AED) used as concomitant medication: Group A, LEV in monotherapy; Group B, LEV + enzyme-inducing antiepileptic drugs (EIAEDs) and Group C, LEV + non-enzyme-inducing antiepileptic drugs (NEIAEDs). Apparent oral LEV clearance (LEV CL/F) and basal serum LEV concentrations (LEV C0) were compared among the different groups by analysis of variance (ANOVA)...
November 23, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29209390/the-mechanism-of-anti-epileptogenesis-by-levetiracetam-treatment-is-similar-to-the-spontaneous-recovery-of-idiopathic-generalized-epilepsy-during-adolescence
#18
Hiroki Kikuyama, Tadahito Hanaoka, Tetsufumi Kanazawa, Yasushi Yoshida, Takafumi Mizuno, Hirotaka Toyoda, Hiroshi Yoneda
Objective: The anti-epileptogenic drug levetiracetam has anticonvulsant and anti-epileptogenesis effects. Synergy between cell death and inflammation can lead to increased levels of apoptosis inhibitory factors and brain-derived neurotrophic factor, aberrant neurogenesis and extended axon sprouting. Once hyperexcitation of the neural network occurs, spontaneous seizures or epileptogenesis develops. This study investigated whether the anti-epileptogenic effect of levetiracetam is due to its alternate apoptotic activity...
November 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/29208197/-treatment-of-rolandic-epilepsy
#19
Maria Jose Miranda, Banoo Bakir Ahmad
Recent literature indicates, that rolandic epilepsy/epilepsy of childhood with centrotemporal spikes may not be as benign as previously assumed. This study investigates the existing evidence, which describes the treatment effects on seizure frequency as well as improvement of cognition in children with rolandic epilepsy. We conclude, that treatment with anti-epileptic drugs could be justified, if treatment reduces seizures, prevents the evolution to atypical forms, or diminishes the negative cognitive consequences associated with the disease...
November 27, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29197669/vitamin-d-deficiency-in-children-with-epilepsy-taking-valproate-and-levetiracetam-as-monotherapy
#20
Teodoro Durá-Travé, Fidel Gallinas-Victoriano, María Malumbres-Chacón, Paula Moreno-Gónzalez, Sergio Aguilera-Albesa, María Eugenia Yoldi-Petri
OBJECTIVE: The aim of this study is to evaluate if valproate (VPA) and levetiracetam (LEV) as monotherapy are associated with vitamin D deficiency among children with epilepsy. MATERIAL & METHODS: A cross-sectional clinical (seizure types, aetiology of epilepsy, dosage, drug levels, and duration of AED treatment) and blood testing (calcium, phosphorus, 25-OHD and PTH) study was accomplished in 90 epileptic children (AED group: 59 receiving VPA, and 31 receiving LEV) and a control group (244 healthy subjects)...
November 30, 2017: Epilepsy Research
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