Ptz Exposure

PTZ exposure refers to the controlled administration of pentylenetetrazole, a chemical convulsant used to study neuronal excitability and seizure-like activity in biological systems. PTZ reduces inhibitory signaling mediated by gamma-aminobutyric acid type A receptors, shifting neural circuits toward excitation and, at suitable doses, producing measurable behavioral and electrophysiological changes. In experimental biology, this approach provides a reproducible model for investigating seizure mechanisms, assessing neural responses, and screening potential anticonvulsant treatments. Findings from PTZ-based studies can help clarify how altered excitation and inhibition contribute to epilepsy, while careful control of dose, exposure route, and animal welfare supports reliable interpretation.

Ptz Exposure - Related Videos

Research

JoVE Journal - Immunology and Infection

Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens

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Cited by 11 •

2016

In the current climate of scarce resources, new technologies are emerging that allow researchers to conduct studies cheaper, faster and with more precision. Here we describe the development of a bead-based salivary antibody multiplex immunoassay to measure human exposure to multiple environmental pathogens simultaneously.

Whole-Body Nanoparticle Aerosol Inhalation Exposures

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Cited by 51 •

2013

A whole-body nanoparticle aerosol inhalation exposure facility was constructed for nano-sized titanium dioxide (TiO2) inhalation toxicology studies. This system provides nano-TiO2 aerosol test atmospheres that have: 1) a steady mass concentration; 2) a homogenous composition free of contaminants; and 3) a stable particle size distribution during aerosol generation.

Synaptic Modulation in Drosophila After Exposure to Prolonged Light

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2025

This video demonstrates the rearing of Drosophila melanogaster under specific light conditions to study the role of Bruchpilot proteins in neurotransmitter release and the resulting modulation of synaptic activity.

Research

JoVE Journal - Medicine
Free Sample

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

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Cited by 2 •

2011

We are developing a dynamic adaptive exposure technique using our scanning beam digital X-ray system. Rather than exposing an object uniformly, the exposure is adapted depending on the opacity of the object. Here we show an experiment on an anthropomorphic phantom that resulted in a dose saving of 30%.

Research

JoVE Journal - Medicine
Free Sample

Assessing Teratogenic Changes in a Zebrafish Model of Fetal Alcohol Exposure

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Cited by 34 •

2012

In order to understand the molecular mechanisms of the ethanol-induced developmental damage, we have developed a zebrafish model of ethanol exposure and are exploring the physical, cellular, and genetic alterations that occur after ethanol exposure1. We then seek to find potential interventions and rapidly test them in this animal model.

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