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veratridine/seizures

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ArtikujProvat klinikePatentat
Faqja 1 nga 43 rezultatet
OBJECTIVE Veratridine was characterized previously as an experimental model of epilepsy in vitro. The aim of this preliminary investigation is to identify the pattern of seizure induced by this model in vivo. METHODS Veratridine (200 μg/kg) was administered intraperitoneally to male Sprague-Dawley

Nefiracetam attenuates post-ischemic nonconvulsive seizures in rats and protects neuronal cell death induced by veratridine and glutamate.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
OBJECTIVE Stroke patients are at a high risk of developing post-ischemic seizures and cognitive impairment. Nefiracetam (NEF), a pyrrolidone derivative, has been shown to possess both anti-epileptic and cognitive-enhancing properties. In this study the anti-seizure effects of NEF were evaluated in a

Veratridine-induced wet dog shake behaviour and apoptosis in rat hippocampus.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
We have previously evaluated veratridine as an in vitro model of seizure using conventional electrophysiological recordings in rat hippocampal CA1 pyramidal neurones. The aim of this investigation is to further characterize this convulsant as an in vivo model of seizure. Veratridine was administered

Overproduction of voltage-dependent Na+ channels in the developing brain of genetically seizure-susceptible E1 mice.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
We used E1 mice, a ddY mouse-derived, autosomal mutant strain and a model of hereditary sensory-precipitated epilepsy, to test the hypothesis that epileptic susceptibility may be associated with the activity of voltage-dependent ion channels. We examined the saxitoxin binding capacity of the

Epileptiform activity of veratridine model in rat brain slices: effects of antiepileptic drugs.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
The effects of the antiepileptic drugs valproic acid (VPA), phenytoin (PHT), and ethosuximide (ESM) on evoked and spontaneous seizure-like (epileptiform) activity were studied in the veratridine epileptiform model in rat brain slices, using conventional electrophysiological intracellular recording
Lamotrigine, carbamazepine and oxcarbazepine inhibit veratrine-induced neurotransmitter release from rat brain slices in concentrations corresponding to those reached in plasma or brain in experimental animals or humans after anticonvulsant doses, presumably due to their sodium channel blocking
Nefopam (NEF) is a known analgesic that has recently been shown to be effective in controlling both neuropathic pain and convulsions in rodents. In this study we compared nefopam to carbamazepine (CBZ), a reference antiepileptic drug (AED), for their ability to protect cerebellar neuronal cultures

Depolarization block of neurons during maintenance of electrographic seizures.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Epileptic seizures are associated with neuronal hyperactivity. Here, however, we investigated whether continuous neuronal firing is necessary to maintain electrographic seizures. We studied a class of "low-Ca2+" ictal epileptiform bursts, induced in rat hippocampal slices, that are characterized by
1. To determine the involvement of the convulsant agent pentylenetetrazole (PTZ) in intracellular calcium release in neurons, its effect on stored calcium in the endoplasmic reticulum of rat cortical neurons was tested. 2. Intraperitoneal injection of PTZ caused marked release of calcium from the

Reduced signal complexity of intracellular recordings: a precursor for epileptiform activity?

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Recent studies have shown that time windowed extraction of nonlinear parameters like an effective correlation dimension from intracranially recorded EEG of epileptic patients often allows to detect and identify an unequivocal "pre-ictal phase" preceding an epileptic seizure. In another study,

Preclinical profile of the anticonvulsant remacemide and its enantiomers in the rat.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Studies conducted by Fisons Pharmaceuticals and the Antiepileptic Drug Development Program (ADD Program) of the Epilepsy Branch (NINDS, NIH) revealed that 'remacemide' (FPL 12924, formerly PR 934-423) was effective orally in the prevention of maximal electroshock seizures (MES) in rats. In this

The anticonvulsant effects of the enantiomers of losigamone.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
1 Losigamone is a novel anticonvulsant undergoing phase III clinical trials in patients with partial and secondary generalized seizures. This study investigated the effects of the S(+)- and R(-)- enantiomers of losigamone on endogenous amino acid release from BALB/c mouse cortical slices,

Inhibitory effects of anticonvulsant drugs on cyclic nucleotide accumulation in brain.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
Veratridine causes deplorization of excitable cells and produces marked elevation of adenosine 3',5'-monophosphate (cyclic AMP) and guanosine 3',5'-monophosphate (cyclic GMP) levels in incubated slices of mouse cerebral cortex. Phenytoin, carbamazepine, phenobarbital, primidone, phensuximide,

The effect of losigamone (AO-33) on electrical activity and excitatory amino acid release in mouse cortical slices.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
1. Losigamone is a novel anticonvulsant the mechanism of action of which is not known. This study investigated the effect of losigamone on spontaneous, NMDA- and AMPA-induced depolarizations in the cortical wedge preparation of the DBA/2 mouse (which are susceptible to sound-induced seizures) and on

Iodine labelling of sea anemone toxin II, and binding to normal and denervated diaphragm.

Vetëm përdoruesit e regjistruar mund të përkthejnë artikuj
Identifikohuni Regjistrohu
1. Sea anemone toxin II (ATX II) which keeps the activated sodium channels open, can be labelled at its histidine residues with 125I up to a specific radioactivity of 500 Ci/mmole. Upon intraventricular injection in mice, ATX II causes acute, short-lasting hyperexcitation and convulsions. Its LD50
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