نتایج جستجو برای: ptz inducedseizure threshold

تعداد نتایج: 123299  

2010
Faisal Z. Qureshi Demetri Terzopoulos

We present a visual sensor network—comprising wide field-of-view (FOV) passive cameras and pan/tilt/zoom (PTZ) active cameras—capable of automatically capturing closeup video of selected pedestrians in a designated area. The passive cameras can track multiple pedestrians simultaneously and any PTZ camera can observe a single pedestrian at a time. We propose a strategy for proactive PTZ camera c...

2017
Ahmed A. Abdelsameea

Methods: Forty Mice were randomly allocated into 4 equal groups; control, PTZ, diazepam (4mg/kg) and ivabradine (10 mg/kg) groups. Kindling model was produced by repeated i.p. administration of PTZ (40mg/kg), every other day for 9 days. Repeated PTZ treatment progressively increased the seizure score with the maximum score reached on day 9. Diazepam and ivabradine were administered intraperiton...

Journal: :Journal of psychopharmacology 2007
Rosa L Fradley Martin R Guscott Sharlene Bull David J Hallett Simon C Goodacre Keith A Wafford Elizabeth M Garrett Richard J Newman Gillian F O'Meara Paul J Whiting Thomas W Rosahl Gerard R Dawson David S Reynolds John R Atack

Non-selective benzodiazepines, such as diazepam, interact with equivalent affinity and agonist efficacy at GABA(A) receptors containing either an alpha1, alpha2, alpha3 or alpha5 subunit. However, which of these particular subtypes are responsible for the anticonvulsant effects of diazepam remains uncertain. In the present study, we examined the ability of diazepam to reduce pentylenetetrazoLe ...

2010
Christian Micheloni Bernhard Rinner Gian Luca Foresti

Pan-Tilt-Zoom (PTZ) cameras are able to dynamically modify their field of view. This functionality introduces new capabilities to camera networks such as increasing the resolution of moving targets and adapting the sensor coverage. On the other hand, PTZ functionality requires solutions to new challenges such as controlling the PTZ parameters, estimating the ego-motion of the cameras and calibr...

Journal: :Brain research. Molecular brain research 2004
Xiujun Pi Junho Lee Fei Li Howard C Rosenberg

The present study investigated whether the expression of the cAMP response element-binding protein (CREB) in the rat brain is altered following an acute self-limited seizure induced by pentylenetetrazol (PTZ). Male rats were injected intraperitoneally with a single convulsive dose (45 mg/kg) of PTZ, and the matched controls were given saline. For immunohistochemistry, animals were perfused with...

Journal: :The Journal of pharmacology and experimental therapeutics 1999
L A Walsh M Li T J Zhao T H Chiu H C Rosenberg

The effects of a single convulsive dose of pentylenetetrazol (PTZ, 45 mg/kg i.p.) on rat brain gamma-aminobutyric acid type A (GABAA) receptors were studied. Selected GABAA receptor subunit mRNAs were measured by Northern blot analysis (with beta-actin mRNA as a standard). Four hours after PTZ, the GABAA receptor gamma2-mRNA was decreased in hippocampus, cerebral cortex, and cerebellum; alpha1-...

Journal: :Brain Research Bulletin 2011
Anna Maria Siebel Angelo Luis Piato Katiucia Marques Capiotti Kelly Juliana Seibt Maurício Reis Bogo Carla Denise Bonan

Adenosine exerts neuromodulatory functions with mostly inhibitory effects, being considered an endogenous anticonvulsant. The hydrolysis of ATP by ectonucleotidases is an important source of adenosine, and adenosine deaminase (ADA) contributes to the regulation of this nucleoside concentration through its deamination. In this study, we tested the effect of pentylenetetrazole (PTZ)-induced seizu...

2012
Horst Possegger Matthias Rüther Sabine Sternig Thomas Mauthner Manfred Klopschitz Peter M. Roth Horst Bischof

Pan-Tilt-Zoom (PTZ) cameras are widely used in video surveillance tasks. In particular, they can be used in combination with static cameras to provide high resolution imagery of interesting events in a scene on demand. Nevertheless, PTZ cameras only provide a single trajectory at a time. Hence, engineering algorithms for common computer vision tasks, such as automatic calibration or tracking, f...

2007
Jongwon Choi Yeong-Min Yoo

− Treatment of mice with Korean Red Ginseng (KRG) changed glutamic acid and GABA content in the mouse brain tissue with pentylenetetrazole (PTZ)-induced convulsion. KRG were orally administered at a dose of 50, 100 mg/kg for two weeks. The electroconvulsions (MES) and PTZ-induced convulsion were reduced but those induced by strychnine, bicuculine and picrotoxin were not. PTZ-induced convulsion ...

2017
Fehmida Bibi Ikram Ullah Myeong Ok Kim Muhammad Imran Naseer

OBJECTIVE Seizures are one of the neurodegenerative disorders of human being. Metformin has antioxidant properties and commonly used as an oral antidiabetic drug. The current study was aimed to observe the neuroprotective effect of metformin against PTZ-induced apoptotic neurodegeneration in human cortical neuronal cell culture. METHODS To observe that exposure of pentylenetetrazol (PTZ) at t...

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