نتایج جستجو برای: ptz inducedseizure threshold

تعداد نتایج: 123299  

Background and Objective: Epilepsy is a common disease in communities. Since there is no cure for it and current treatments are not effective for every patient, new method for medical treatment of epileptic patients is necessary. As NMDA receptors antagonists are the most prominent anti-epileptic drugs, in this study we synthesized and investigated anti-epileptic effect of a new piperidine deri...

2017
Mojtaba Pourzaki Mansour Homayoun Saeed Sadeghi Masoumeh Seghatoleslam Mahmoud Hosseini Alireza Ebrahimzadeh Bideskan

OBJECTIVE Coriandrum sativum (C. sativum) as a medicinal plant has been pointed to have analgesic, hypnotic and anti-oxidant effects. In the current study, a possible preventive effect of the hydro-alcoholic extract of the plant on neuronal damages was examined in pentylenetetrazole (PTZ) rat model of seizure. MATERIALS AND METHODS Forty male rats were divided into five main groups and treate...

Journal: :Archives of Neuroscience 2022

Background: Epilepsy is a chronic central nervous system disorder with high prevalence in modern society. Despite using common anticonvulsant drugs, its control not adequately achieved. Animal models for seizures play the leading role advancing our understanding of cellular mechanisms epilepsy. The present study was an attempt to elucidate electrophysiological mechanism effect sodium valproate ...

2003
Anita Verma

Chronic administration of ethanol (2-5 g/kg p.o.) on days 1 to 6 and its withdrawal produced anxiogenic reaction in mice and rats as assessed on the elevated plus-maze. Daily administration of Mentat (100-mg/kg) prior to ethanol intoxication for 6 days prevented withdrawal-induced anxiety in both rats and mice. However, the acute administration of a single dose of Mentat to animals withdrawn fr...

Journal: :Journal of pineal research 2004
Leila Bikjdaouene Germaine Escames Encarnación Camacho Josefa León José M R Ferrer Antonio Espinosa Miguel A Gallo Juan De Dios Luna Darío Acuña-Castroviejo

We have previously proven that some synthetic kynurenines behave as antagonists of the N-methyl-d-aspartate receptor inhibiting neuronal subtype of nitric oxide synthase activity. We now investigate the anticonvulsant activity of four of these kynurenines in pentylenetetrazole (PTZ)-treated rats. The rats were treated with each kynurenine (10-160 mg/kg, s.c.) 30 min before PTZ administration (1...

2015
Sameer C Dhamne Dana Ekstein Zhihong Zhuo Roman Gersner David Zurakowski Tobias Loddenkemper Alvaro Pascual-Leone Frances E Jensen Alexander Rotenberg

OBJECTIVE Cathodal transcranial direct current stimulation (tDCS) is a focal neuromodulation technique that suppresses cortical excitability by low-amplitude constant electrical current, and may have an antiepileptic effect. Yet, tDCS has not been tested in status epilepticus (SE). Furthermore, a combined tDCS and pharmacotherapy antiseizure approach is unexplored. We therefore examined in the ...

Journal: :Journal of pharmaceutical and biomedical analysis 2011
Sevgi Turker Stephen Wassall William Stillwell Feride Severcan

Pentylenetetrazol (PTZ) is an epileptogenic agent, which is widely used in the determination of epilepsy-induced alterations and in the assessment of anticonvulsant agents in epileptic studies. Even though PTZ is suggested to induce repetitive firing of nerve fibers and shorten the refractory, its mechanism of action is only partially understood. In the literature there are discrepancies for it...

2014
Basma S Haggag Amany H Hasanin Mona H Raafat Hala S Abdel Kawy

Various antiepileptic drugs (AEDs) especially enzyme-inducing AEDs might be associated with increased vascular risk, through impairment of the endogenous antioxidative ability which may trigger oxygen-dependent tissue injury. Lamotrigine (LTG) a non-enzyme-inducing AED has scarce information regarding its effects on oxidative stress. The present study aimed to study the possible modulation of v...

Journal: :American journal of physiology. Heart and circulatory physiology 2000
E M Cornford E V Nguyen E M Landaw

Brain extraction of (18)F-labeled 2-fluoro-2-deoxy-D-glucose (FDG) was significantly higher in pentylene tetrazole (PTZ)-treated rats (32 +/- 4%) than controls (25 +/- 4%). The FDG permeability-surface area product (PS) was also significantly higher with PTZ treatment (0.36 +/- 0.05 ml. min(-1). g(-1)) than in controls (0.20 +/- 0.06 ml. min(-1). g(-1)). Cerebral blood flow rates were also elev...

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