Abstract：
OBJECTIVE:Acetaminophen is one of the most commonly used analgesic and antipyretic drugs. It has been reported that acetaminophen has anticonvulsant effects in several animal models of seizure. An active metabolite of acetaminophen, AM404, inhibits the uptake of the endocannabinoid anandamide. However, the mechanism of the anticonvulsant effect of acetaminophen is unknown. METHODS:This study was performed to examine whether or not acetaminophen can protect against pentylenetetrazol-induced kindling in mice and to investigate the precise mechanisms of the anticonvulsant effect of acetaminophen using the fully kindled mouse models. RESULTS:Repeated administration of acetaminophen significantly delayed the progression of seizure severity induced by pentylenetetrazol. Additionally, acetaminophen showed a dose-dependent anticonvulsant activity against fully pentylenetetrazol-kindled seizures. AM404 also exhibited a dose-dependent anticonvulsant activity in fully kindled animals. The anticonvulsant activity of acetaminophen was antagonized by capsazepine and AMG9810, two transient receptor potential vanilloid-1 (TRPV1) antagonists. However, the transient receptor potential ankyrin 1 (TRPA1) antagonist HC030031 and CB1 receptor antagonist AM251 had no effect. CONCLUSION:These findings suggest that acetaminophen has an anticonvulsant effect in pentylenetetrazol-kindled mouse models and TRPV1 mediates the anticonvulsant action.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Suemaru K,Yoshikawa M,Aso H,Watanabe Mdoi
10.1016/j.eplepsyres.2018.06.016subject
Has Abstractpub_date
2018-09-01 00:00:00pages
153-159eissn
0920-1211issn
1872-6844pii
S0920-1211(18)30057-3journal_volume
145pub_type
杂志文章abstract：:We analyzed preoperative ictal SPECT results from 18 frontal lobe epilepsy patients who underwent epilepsy surgery (mean age 22.9 years). Seizure onset at implanted subdural electrodes was defined as the epileptic focus in 16 of 18 patients. In two additional patients, the resected area on postoperative magnetic reson...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2005.09.032
更新日期：2006-02-01 00:00:00
abstract：:Developmental changes of transport of drugs into the brain play an important role in ontogenetic neuropharmacology. Two convulsant drugs with different mechanisms of action (glutamate and bicuculline methiodide) were chosen to demonstrate these changes in developing rats. High dose of glutamate (4 g/kg i.p.) induced b...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(00)00179-0
更新日期：2000-12-01 00:00:00
abstract：PURPOSE:Diffusion tensor imaging (DTI) provides information about magnitude (diffusivity) and directionality (anisotropy, FA) of water diffusion. We explored the characteristics of pathology-proven cortical dysplasia (CD) in the posterior quadrant in a case series of three patients using DTI measures, to assess associa...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.03.006
更新日期：2010-08-01 00:00:00
abstract：:The genetically epilepsy-prone rat (GEPR) has become an important model to study genetic predisposition to epilepsy involving not only the brainstem but also forebrain structures. Previous work in CA1 hippocampal cells showed a reduction in spike frequency adaptation and only subtle changes in slow afterhyperpolarizat...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(95)00040-2
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVES:Patients with epilepsy have excess morbidity and mortality due to ischemic cardiovascular disease. Many of these patients have elevated concentrations of plasma total homocysteine (Hcy), which is an acknowledged risk factor for cardiovascular disease, venous thromboembolic disease, foetal malformations and d...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.06.003
更新日期：2008-11-01 00:00:00
abstract：:There is a remarkable array of new chemical entities in the current antiepileptic drug (AED) development pipeline. In some cases, the compounds were synthesized in an attempt improve upon the activity of marketed AEDs. In other cases, the discovery of antiepileptic potential was largely serendipitous. Entry into the p...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2006.02.004
更新日期：2006-06-01 00:00:00
abstract：:The effects of systemic pretreatment with morphine sulfate (MS) on electroencephalographic (EEG) manifestations of seizures due to bicuculline (BIC) were studied in freely moving rats. Electrodes were placed on frontal and occipital cortices, into the hippocampus and into a region of the prepiriform cortex, area tempe...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(89)90012-0
更新日期：1989-09-01 00:00:00
abstract：:This paper evaluates the patient-specific seizure prediction performance of pre-ictal changes in bivariate-synchrony between pairs of intracranial electroencephalographic (iEEG) signals within 15min of a seizure in patients with pharmacoresistant focal epilepsy. Prediction horizons under 15min reduce the durations of ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.07.014
更新日期：2010-10-01 00:00:00
abstract：:Overexpression of multidrug efflux transporters such as P-glycoprotein (Pgp; ABCB1) or multidrug resistance proteins (MRPs; ABCC) in the blood-brain barrier has recently been suggested to explain, at least in part, pharmacoresistance in epilepsy, which affects about 30% of all patients with this common brain disorder....
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2003.12.007
更新日期：2004-02-01 00:00:00
abstract：:Benign myoclonic epilepsy in infancy is a rare syndrome with just over 100 cases reported since the first syndromic description by Dravet and Bureau [Dravet, C., Bureau, M., 1981. The benign myoclonic epilepsy of infancy. Rev. Elecroencephalogr. Neurophysiol. Clin. 11, 438-444]. This includes 23 infants with reflex my...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2006.01.014
更新日期：2006-08-01 00:00:00
abstract：PURPOSE:We performed this study to evaluate the frequency, types, and ictal electroencephalography (EEG) findings of coexisting seizures in patients with infantile spasms at the onset of spasms. We also evaluated the effect of coexisting seizures on short-term seizure control. METHODS:We retrospectively reviewed the l...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2012.03.003
更新日期：2012-08-01 00:00:00
abstract：:Early Onset Absence Epilepsy constitutes an Idiopathic Generalized Epilepsy with absences starting before the age of four years. Mutations in SLC2A1, encoding the glucose transporter, account for approximately 10% of EOAE cases. The role of SLC2A1 mutations in absence epilepsies with a later onset has not been assesse...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2012.11.004
更新日期：2013-07-01 00:00:00
abstract：AIM:Vitamin D (Vit D) has been considered as a neurosteroid and has a pivotal role in neuroprotection including epilepsy. Vit D regulator acts via a Vit D receptor (VDR). WAG/Rij rats have a genetically epileptic model of absence epilepsy with comorbidity of depression. The aim of the present study was to investigate t...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.106208
更新日期：2019-11-01 00:00:00
abstract：:Mutations of genes coding for ion channels cause several genetically determined human epileptic syndromes. The identification of a gene variant linked to a particular disease gives important information, but it is usually necessary to perform functional studies in order to completely disclose the pathogenic mechanisms...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2010.08.003
更新日期：2010-11-01 00:00:00
abstract：:The deletion of a sodium channel gene cluster located on chromosome 2q24.3 is associated with variable epilepsy phenotypes, including Dravet syndrome and migrating partial seizures of infancy. Although SCN1A is considered as the major contributor to the epilepsy phenotype, the role of other sodium channel genes that m...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.10.008
更新日期：2015-01-01 00:00:00
abstract：RATIONALE:Epilepsy is the most common serious neurological condition in the world, and an important cause of mortality and disability in developing countries. Because epidemiological and clinical characteristics of epilepsy vary by region, it is important to know the peculiarities of epilepsy in this area of the Americ...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2005.07.002
更新日期：2005-08-01 00:00:00
abstract：:Sodium valproate is a drug widely used for the treatment of epilepsy and mood disorders. We studied the effect of valproate on cerebral energy metabolism by incubating rat brain slices with 5 mM [3-(13)C]glutamate in the absence and the presence of 1 mM valproate. Substrate removal and product formation were measured ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.10.028
更新日期：2012-03-01 00:00:00
abstract：PURPOSE:The aim of this study is to classify infantile cases with benign seizures into known epileptic syndromes, thereby facilitating discussion of clinical factors that could play an important role in diagnosis. SUBJECTS:Fifty-seven patients with afebrile seizures fulfilling all of the following criteria were enroll...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.02.007
更新日期：2006-08-01 00:00:00
abstract：:The purpose of this study is to propose and investigate a new approach for discriminating between focal and non-focal hemispheres in intractable temporal lobe epilepsy, based on applying multivariate time series analysis to the discharge-free background brain activity observed in nocturnal electrocorticogram (ECoG) ti...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2004.06.003
更新日期：2004-09-01 00:00:00
abstract：PURPOSE:The present study was undertaken to clarify the participation of the GABA-ergic system in epileptogenic activity induced by teicoplanin. METHODS:Under pentobarbital anesthesia, mice were fixed to a stereotaxic apparatus, and stainless steel electrodes were implanted into the frontal cortex (FCOR), hippocampus ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.01.006
更新日期：2009-04-01 00:00:00
abstract：:With the availability of more stable radiopharmaceuticals, the ictal single photon emission computed tomography (SPECT) perfusion study has emerged as a useful noninvasive functional neuroimaging tool in the presurgical evaluation of patients with medically intractable partial epilepsy. The purpose of this study was t...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00097-7
更新日期：1999-02-01 00:00:00
abstract：:In a selected group of temporal lobe epilepsy patients with seizures refractory to pharmacological treatment, pharmacological seizure control can be attained by surgical resection of the epileptic zone. We investigated to what extent pharmaco-resistance is reflected in a reduced response at the cellular level, in neur...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00061-8
更新日期：1998-09-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to investigate whether there may be a correlation between the anatomical variants of Circle of Willis (CoW) and presence/laterality of mesial temporal sclerosis (MTS). METHODS:We retrospectively identified the CoW variants on Wada angiograms in 71 patients with pathologically proven...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2017.02.017
更新日期：2017-05-01 00:00:00
abstract：:In the brain, injury-induced gliosis and axonal sprouting have been regarded as age-dependent repairing processes with, unfortunately, epileptogenic effects. The present study examines whether brains injured at different developmental stages become more or less susceptible to experimentally-induced status epilepticus....
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(03)00029-9
更新日期：2003-03-01 00:00:00
abstract：:We describe the clinical and radiological features of a family with a homozygous mutation in TBC1D24. The phenotype comprised onset of focal seizures at 2 months with prominent eye-blinking, facial and limb jerking with an oral sensory aura. These were controllable with medication but persisted into adult life. Associ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.02.005
更新日期：2013-07-01 00:00:00
abstract：:Multiple forms of the ketogenic diet (KD) have been successfully used to treat drug-resistant epilepsy, however its mainstream use as a first-line therapy is still limited. Further investigation into its clinical efficacy as well as the molecular basis of activity is likely to assist in the reversal of any resistance ...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2011.04.017
更新日期：2012-07-01 00:00:00
abstract：:Nonconvulsive status epilepticus (NCSE) is difficult to diagnose but is an important cause of cognitive impairment. Electroencephalogram (EEG) monitoring is required for diagnosis and treatment. Little is known regarding the stability of subclinical epileptiform discharges (SEDs) preceding NCSE nor what strategies may...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(02)00107-9
更新日期：2002-09-01 00:00:00
abstract：PURPOSE:Our objective was to propose a new on demand non-human primate model of mesial temporal lobe seizures suitable for pre-clinical innovative therapeutic research. METHODS:Five macaques were stereotaxically implanted unilaterally with a deep recording electrode in the hippocampus. For each experiment, penicillin ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2018.03.008
更新日期：2018-05-01 00:00:00
abstract：:Lithium is still the mainstay in the treatment of affective disorders as a mood stabilizer. Lithium also shows some anticonvulsant properties. While the underlying mechanisms of action of lithium are not yet exactly understood, we used a model of clonic seizure induced by pentylenetetrazole (PTZ) in male NMRI mice to ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.02.001
更新日期：2010-05-01 00:00:00
abstract：:Generalized epilepsy with febrile seizures plus (GEFS+) comprises a group of clinically and genetically heterogeneous epilepsy syndrome. Here, we provide the first report of clinical presentation and mutational analysis of SCN1A gene in 36 Malaysian GEFS+ patients. Mutational analysis of SCN1A gene revealed twenty sev...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2012.08.004
更新日期：2012-12-01 00:00:00
