نتایج جستجو برای: ptz inducedseizure threshold

تعداد نتایج: 123299  

2014
M.R. Palizvan E. Ghaznavi-Rad

The role of opioid receptor and voltage dependent calcium channels on the kindling induced by the convulsant pentylenetetrazole (PTZ) were investigated in the rats. Experiment involved 24 rats which were divided into four groups. Kindling was established with PTZ in subconvulsive dose (37.5 mg/kg i.p.) every 48 h and effects were observed within 20 min using five-point scoring system. All anima...

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 2016
J Fleck F R Temp J R Marafiga A C Jesse L H Milanesi L M Rambo C F Mello

Cysteinyl leukotrienes (CysLTs) have been implicated in seizures and kindling; however, the effect of CysLT receptor antagonists on seizure frequency in kindled animals and changes in CysLT receptor expression after pentylenetetrazol (PTZ)-induced kindling have not been investigated. In this study, we evaluated whether the CysLT1 inverse agonist montelukast, and a classical anticonvulsant, phen...

Journal: :Indian journal of physiology and pharmacology 2006
R Shitak A K Sahai D Hota A Chakrabarti

The present study aimed at establishing two models of experimental seizures by combination treatment with subconvulsive doses of PTZ and kainic acid in adult male mice and evaluating the modulatory role of cerebroselective dihydropyridine calcium channel blocker, nimodipine. The CD50 +/- SEM value for PTZ was found to be 20.00 +/- 0.92 mg/kg, ip in kainic acid (administered at per se subconvuls...

Journal: :The European Research Journal 2021

Objectives: This study aimed to investigate the effects of prenatal stress (PS) on hippocampus early acute pentylenetetrazole (PTZ)-kindled offspring in adolescence. Recognition memory, morphological changes and synaptophysin levels were evaluated. Methods: Restraint was induced a group pregnant dams non-stressed (NA) remained undisturbed. Next, male female divided as 1. PS-PTZ, 2. PS -control,...

Journal: :The Journal of pharmacology and experimental therapeutics 1998
M Beekman J T Ungard M Gasior R B Carter D Dijkstra S R Goldberg J M Witkin

Neuroactive steroids are naturally occurring or synthetically derived compounds many of which have anticonvulsant, anesthetic, anxiolytic, analgesic or hypnotic properties. The major site of neuronal activity appears to be with a specific steroid-sensitive site on the gamma-aminobutyric acidA receptor/chloride ionophore complex. Ganaxolone (3 alpha-hydroxy-3 beta-methyl-5 alpha-pregnan-20-one) ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1390

هر موش صحرایی نر ویستار mg/kg 45 ptz را بصورت داخل صفاقی تا 13 تزریق دریافت کرد. از لیدوکائین به منظور غیرفعال سازی lh استفاده شد و رفتارهای تشنجی به عنوان شاخص کیندلینگ هیپوکمپ ارزیابی شدند. محتوای گلوتامات با کیت سنجش گلوتامات اندازه گیری شد. مغزهای فیکس شده برش داده شدند و با کرزیل ویوله رنگ آمیزی شدند تا تغییرات بافتی مشاهده شود. تزریقات ptz باعث کیندلینگ و کاهش محتوای گلوتامات می شود در حا...

Journal: :Arquivos de neuro-psiquiatria 2011
Luziene Dalmaschio Biasutti de Oliveira Roney Welinton Dias de Oliveira Henrique de Azevedo Futuro Neto Ester Miyuki Nakamura-Palacios

Magnesium sulfate (MgSO₄) has been used to prevent seizures in eclampsia. This study examined the central effects of MgSO₄ on different types of pentylenetetrazole (PTZ)-induced seizures. Male Wistar rats were submitted to intracerebroventricular (ICV) administration of MgSO₄ at different doses followed by intraperitoneal administration of PTZ. The latency to the onset of the first seizure indu...

2012
Sang Gu Lee Ji Hoon Jo

In this paper, we present a robust real-time surveillance system of image object tracking for Pan-Tilt-Zoom(PTZ) camera. For image object tracking, we use the CAM shift tracking algorithm based on the HSI color image distribution of detected moving objects. CAM shift algorithm is very efficient for real-time tracking because of its fast and robust performance. In this system, C++ and OpenCV env...

Journal: :Pharmacological reports : PR 2006
A Ali K P Pillai F J Ahmad Y Dua D Vohora

Inhibition of sodium hydrogen exchangers (NHE) has been shown to diminish seizure activity in various in vitro and in vivo models of epilepsy. In the present study, we examined the effect of amiloride, a sodium hydrogen exchanger inhibitor, against pentetrazole (PTZ)-induced status epilepticus (SE). The study was conducted in mice and status epilepticus was induced by administering ip 50 mg/kg ...

Journal: :Frontiers of Chemical Science and Engineering 2021

This work presents a simple effective strategy to synthesize N-doped and shell-controlled carbon nanocages through package baking approach. A green approach core-shell ZIF-8@PTZ nanoparticles involves zinc contained ZIF-8 core wrapped by N-enriched polytriazine (PTZ). Synthesized are calcinated further sublime PTZ shell washed HCl, leaving porous structure. At the meantime, hollow cavities were...

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