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https://www.readbyqxmd.com/read/27932863/non-imidazole-based-histamine-h3-receptor-antagonists-with-anticonvulsant-activity-in-different-seizure-models-in-male-adult-rats
#1
Bassem Sadek, Ali Saad, Gniewomir Latacz, Kamil Kuder, Agnieszka Olejarz, Tadeusz Karcz, Holger Stark, Katarzyna Kieć-Kononowicz
A series of twelve novel non-imidazole-based ligands (3-14) was developed and evaluated for its in vitro binding properties at the human histamine H3 receptor (hH3R). The novel ligands were investigated for their in vivo protective effects in different seizure models in male adult rats. Among the H3R ligands (3-14) tested, ligand 14 showed significant and dose-dependent reduction in the duration of tonic hind limb extension in maximal electroshock (MES)-induced seizure model subsequent to acute systemic administration (5, 10, and 20 mg/kg, intraperitoneally), whereas ligands 4, 6, and 7 without appreciable protection in MES model were most promising in pentylenetetrazole (PTZ) model...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27932377/pfizer-is-fined-%C3%A2-84m-for-exploiting-opportunity-to-hike-price-of-phenytoin
#2
Nigel Hawkes
No abstract text is available yet for this article.
December 8, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27914224/a-systematic-review-of-epileptic-seizures-in-adults-with-subdural-haematomas
#3
REVIEW
Sae-Yeon Won, Juergen Konczalla, Daniel Dubinski, Adriano Cattani, Colleen Cuca, Volker Seifert, Felix Rosenow, Adam Strzelczyk, Thomas M Freiman
BACKGROUND: Posttraumatic epileptic seizures (PTS) are a serious complication in patients with subdural haematoma (SDH). However, to date, several studies have shown discordances about SDH-associated seizures in terms of incidence, risk factors and prophylactic antiepileptic treatment. OBJECTIVE: The aim of this study was to analyse the incidence, risk factors of PTS and the role of prophylactic antiepileptic treatment in patients with SDH. DATA SOURCES: A systematic literature review examining PTS in patients with SDH was performed using PubMed gateway, Cochrane Central Register of Controlled Trials, and Excerpta Medica dataBASE between September 1961 and February 2016...
November 25, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27896804/antiepileptic-drugs-and-hyponatremia-in-older-adults-two-population-based-cohort-studies
#4
Sonja Gandhi, Eric McArthur, Muhammad M Mamdani, Daniel G Hackam, Richard S McLachlan, Matthew A Weir, Jorge G Burneo, Amit X Garg
OBJECTIVE: To examine the 30-day risk of hospitalization with hyponatremia associated with carbamazepine, valproic acid (V), phenytoin (P), or topiramate (T) use compared to nonuse in the outpatient setting among older adults. METHODS: We conducted two population-based, retrospective cohort studies in Ontario, Canada, between 2003 and 2015 using administrative health care databases of older adults. The first study compared carbamazepine users to a propensity-score matched group of antiepileptic drug nonusers, whereas the second compared V-P-T users to a propensity-score matched group of antiepileptic nonusers...
November 29, 2016: Epilepsia
https://www.readbyqxmd.com/read/27895057/pfizer-could-face-large-fine-over-pricing-of-generic-phenytoin
#5
Nigel Hawkes
No abstract text is available yet for this article.
November 28, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27890484/25-years-of-advances-in-definition-classification-and-treatment-of-status-epilepticus
#6
Eugen Trinka, Reetta Kälviäinen
PURPOSE: Status epilepticus (SE) requires not only urgent symptomatic treatment with antiepileptic drugs but also rapid identification and treatment of its cause. This narrative review summarizes the most important advances in classification and treatment of SE. METHOD: Data sources included MEDLINE, EMBASE, ClinicalTrials.gov, and back tracking of references in pertinent studies, reviews, and books. RESULTS: SE is now defined as "a condition resulting either from the failure of the mechanisms responsible for seizure termination or from the initiation of mechanisms, which lead to abnormally, prolonged seizures (after time point t1)...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27888155/significant-hla-class-i-type-associations-with-aromatic-antiepileptic-drug-aed-induced-sjs-ten-are-different-from-those-found-for-the-same-aed-induced-dress-in-the-spanish-population
#7
Elena Ramírez, Teresa Bellón, Hoi Y Tong, Alberto M Borobia, Francisco J de Abajo, Victoria Lerma, Miguel A Moreno Hidalgo, José L Castañer, Rosario Cabañas, Ana Fiandor, Jessica González-Ramos, Pedro Herranz, Lucía Cachafeiro, Carlos González-Herrada, Olga González, José A Aramburu, Olga Laosa, Rafael Hernández, Antonio J Carcas, Jesús Frías
Aromatic antiepileptic drugs (AEDs) are among the drugs most frequently involved in severe cutaneous adverse reactions (SCARs), such as Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug reactions with eosinophilia and systemic symptoms (DRESS). This study investigated the associations between the genetic polymorphisms of HLA class-I and AED-induced SCARs in the Spanish population. HLA class-I genotypes were determined in AED (phenytoin[PHT],lamotrigine[LTG],carbamazepine[CBZ],phenobarbital[PB])-induced SJS/TEN (n=15) or DRESS (n=12) cases included in the Spanish SCAR registry, PIELenRed...
November 22, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27876397/efficacy-of-sodium-channel-blockers-in-scn2a-early-infantile-epileptic-encephalopathy
#8
Robertino Dilena, Pasquale Striano, Elena Gennaro, Laura Bassi, Sara Olivotto, Laura Tadini, Fabio Mosca, Sergio Barbieri, Federico Zara, Monica Fumagalli
BACKGROUND: Recent clinical evidence supports a targeted therapeutic approach for genetic epileptic encephalopathies based on the molecular dysfunction. PATIENT DESCRIPTION: A 2-day-old male infant presented with epileptic encephalopathy characterized by burst-suppression EEG background and tonic-clonic migrating partial seizures. The condition was refractory to phenobarbital, pyridoxine, pyridoxal phosphate and levetiracetam, but a dramatic response to an intravenous loading dose of phenytoin was documented by video-EEG monitoring...
November 19, 2016: Brain & Development
https://www.readbyqxmd.com/read/27875747/new-model-of-pharmacoresistant-seizures-induced-by-3-mercaptopropionic-acid-in-mice
#9
Andrea Enrique, Sofía Goicoechea, Rocío Castaño, Facundo Taborda, Luisa Rocha, Sandra Orozco, Elena Girardi, Luis Bruno Blanch
About 30% of the patients with epilepsy do not respond to clinically established anticonvulsants, despite having effective concentrations of the antiepileptic drug in plasma. Therefore, new preclinical models of epilepsy are needed to identify more efficacious treatments. We describe here a new drug-resistant seizure model in mice to be used at the early stages of pre-clinical trials. This model consists in inducing daily generalized seizures for 23 consecutive days by administration of 3-mercaptopropionic acid (MP)...
October 27, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27864524/evolving-use-of-seizure-medications-after-intracerebral-hemorrhage-a-multicenter-study
#10
Andrew M Naidech, Jennifer Beaumont, Babak Jahromi, Shyam Prabhakaran, Abel Kho, Jane L Holl
OBJECTIVE: Prophylactic medications can be a source of preventable harm, potentially affecting large numbers of patients. Few data exist about how clinicians change prescribing practices in response to new data and revisions to guidelines about preventable harm from a prophylactic medication. We sought to determine the changes in prescribing practice of seizure medications for patients with intracerebral hemorrhage (ICH) across a metropolitan area before and after new outcomes data and revised prescribing guidelines were published...
November 18, 2016: Neurology
https://www.readbyqxmd.com/read/27862179/the-use-of-a-battery-of-pain-models-to-detect-analgesic-properties-of-compounds-a-two-part-four-way-crossover-study
#11
P Okkerse, G van Amerongen, M L de Kam, J Stevens, R P Butt, R Gurrell, A Dahan, J M van Gerven, J L Hay, G J Groeneveld
AIM: The aim was to investigate the ability of a battery of pain models to detect analgesic properties of commonly used analgesics in healthy subjects. METHODS: The battery consisted of tests eliciting electrical, mechanical and thermal (contact heat and cold pressor)-pain and included a UVB model, the thermal grill illusion and a paradigm of conditioned pain modulation. Subjects were administered fentanyl 3 µg/kg, phenytoin 300 mg, (S)-ketamine 10 mg and placebo (part I), or imipramine 100 mg, pregabalin 300 mg, ibuprofen 600 mg and placebo (part II)...
November 9, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27854111/the-risk-of-hypotension-and-seizures-in-patients-receiving-prophylactic-anti-epileptic-drugs-for-supratentorial-craniotomy
#12
Julius Höhne, Karl M Schebesch, Christian Ott, Alexander Brawanski, Max Lange
BACKGROUND: Perioperative seizure prophylaxis with antiepileptic drugs (AED) has been advocated in patients undergoing supratentorial craniotomy. The practice remains controversial. The reasoning presupposes that the possibility of an adverse drug reaction from the AED is lower than the probability of harm from a seizure. Even short periods of hypotension during the operation can lead to acute kidney and myocardial injury. We retrospectively evaluated cardiovascular effects and tolerability of Levetiracetam (LEV) alone, LEV and Lacosamid (LCM) as compared to Phenytoin (PHT)...
November 17, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27853355/anticonvulsant-effects-of-isomeric-nonimidazole-histamine-h3-receptor-antagonists
#13
Bassem Sadek, Ali Saad, Johannes Stephan Schwed, Lilia Weizel, Miriam Walter, Holger Stark
Phenytoin (PHT), valproic acid, and modern antiepileptic drugs (AEDs), eg, remacemide, loreclezole, and safinamide, are only effective within a maximum of 70%-80% of epileptic patients, and in many cases the clinical use of AEDs is restricted by their side effects. Therefore, a continuous need remains to discover innovative chemical entities for the development of active and safer AEDs. Ligands targeting central histamine H3 receptors (H3Rs) for epilepsy might be a promising therapeutic approach. To determine the potential of H3Rs ligands as new AEDs, we recently reported that no anticonvulsant effects were observed for the (S)-2-(4-(3-(piperidin-1-yl)propoxy)benzylamino)propanamide (1)...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27852418/-comparisons-of-efficacy-and-safety-of-levetiracetam-versus-phenytoin-for-seizure-prophylaxis-in-patients-with-brain-injury-a-meta-analysis
#14
J N Li, Y M Chen
Objective: To systematically review the efficacy, side effects and case-fatality rate of levetiracetam (LEV) versus phenytoin (PHT) for seizure prophylaxis of brain injured patients. Methods: Randomized controlled trials of high quality about LEV versus PHT in seizure prophylaxis of brain injured patients from 2000 to 2016 were collected according to the key word PHT, LEV, brain injury in PubMed, Medline, Ovid, Springer, CNKI, Wanfang data and so on. Valid data were extracted to conduct meta-analysis by RevMan 5...
October 25, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27850502/864-evaluation-of-intravenous-phenytoin-loading-doses-in-obese-patients
#15
Ryan Dasgupta, Danielle Burghardt, Cesar Alaniz
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850428/790-characterization-of-free-phenytoin-concentrations-in-end-stage-renal-disease
#16
Vincent Soriano, Eljim Tesoro, Sean Kane
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27843822/impact-of-antiepileptic-drugs-on-bone-health-need-for-monitoring-treatment-and-prevention-strategies
#17
REVIEW
Ekta Arora, Harmanjit Singh, Yogendra Kumar Gupta
Epilepsy is the most common neurological disorder affecting approximately 50 million people worldwide. In India, overall prevalence of epilepsy is reported to be 5.59/1000 population. Antiepileptic drugs (AEDs) constitute the main-stay of treatment with a large number of AEDs available in the market. High incidence of adverse effects is a major limitation with AEDs. One of the major concerns is significant metabolic effects on the bone. However, little attention has been paid to this issue because most of the bone effects remain subclinical for a long time and may take years to manifest clinically...
April 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/27843704/association-between-antiepileptic-drugs-and-hepatocellular-carcinoma-in-patients-with-epilepsy-a-population-based-case-control-study
#18
Dong-Zong Hung, Cheng-Li Lin, Yi-Wen Li, Yen-Ning Lin, Ying-Ray Lee, Charles-C N Wang, Jih-Jung Chen, Yun-Ping Lim
BACKGROUND: This study explored whether antiepileptic drugs (AEDs) use increases the risk of hepatocellular carcinoma (HCC). METHODS: We conducted a case-control study using data from the National Health Insurance system of Taiwan. The case group comprised 1,454 epilepsy patients with newly diagnosed HCC, and the control group comprised 1,448 epilepsy patients without HCC. Both groups had similar distributions of sex and age, and follow-up duration. Possible associations with the AEDs in Taiwan were examined...
November 2016: Brain and Behavior
https://www.readbyqxmd.com/read/27831551/changing-antiepileptic-drug-use-for-seizures-in-us-neonatal-intensive-care-units-from-2005-to-2014
#19
K A Ahmad, S J Desai, M M Bennett, S F Ahmad, Y-T Ng, R H Clark, V N Tolia
OBJECTIVE: Neonatal seizures are a common problem in the neonatal intensive care unit and are frequently treated with antiepileptic drugs. Limited data exist on current or changing antiepileptic drug use for seizures in the neonatal intensive care unit.We sought to describe trends of antiepileptic drug exposure in a large volume of US neonatal intensive care unit from 2005 to 2014 and we hypothesized increasing levetiracetam exposure over the 10-year study period. STUDY DESIGN: Retrospective cohort study of infants from the Pediatrix Medical Group Clinical Data Warehouse, a large, multicenter, deidentified data set...
November 10, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27821519/hyperhomocysteinaemia-in-children-receiving-phenytoin-and-carbamazepine-monotherapy-a-cross-sectional-observational-study
#20
Saravanan Chandrasekaran, Sooraj Patil, Renu Suthar, Savita Verma Attri, Jitendra Kumar Sahu, Naveen Sankhyan, Mini Tageja, Pratibha Singhi
OBJECTIVE: Long-term therapy with phenytoin and carbamazepine is known to cause hyperhomocysteinaemia. We evaluated the prevalence of hyperhomocysteinaemia in North Indian children receiving phenytoin or carbamazepine monotherapy for >6 months duration and the effect of folic acid supplementation on plasma homocysteine. METHODS: In this cross-sectional observational study we enrolled consecutive children aged 2-12 years with epilepsy who had received phenytoin or carbamazepine monotherapy for >6 months...
November 7, 2016: Archives of Disease in Childhood
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