Fda Pi Double Staining
Fda Pi Double Staining - Related Videos
04:38
Assessing Neuronal Viability in a Cerebellar Neuron Culture via Double Staining
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2025
This video demonstrates the method of identifying neurons from a mixed culture of cerebellar granule neurons and glial cells using dual staining with fluorescein diacetate (FDA) and propidium iodide (PI), where live neurons appear green and dead neurons appear red.
08:53
Assessment of Neuronal Viability Using Fluorescein Diacetate-Propidium Iodide Double Staining in Cerebellar Granule Neuron Culture
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Cited by 29 •
2017
This protocol describes how to accurately measure neuronal viability using Fluorescein diacetate (FDA) and Propidium Iodide (PI) double staining in cultured cerebellar granule neurons, a primary neuronal culture used as an in vitro model in neuroscience and neuropharmacology research.
10:29
The NeuroStar TMS Device: Conducting the FDA Approved Protocol for Treatment of Depression
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Cited by 83 •
2010
In this article, we examine the methodology and considerations relevant to the FDA approved depression treatment protocol using the Neuronetics NeuroStar TMS device.
04:31
Differential Nuclear Staining Assay: An Assay to Determine Mitocan Cytotoxicity by Propidium Iodide and Hoechst Double Staining
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2025
This video demonstrates a nuclear staining method to detect the cytotoxic effect of mitocan on drug-sensitive cancer cells and healthy variants. The double staining with DNA-binding dyes such as propidium iodide and Hoechst dye provides a clear distinction between the dead and live cells, thus helping to assess the cytotoxicity of the drug.
01:09
The Buckingham Pi Theorem
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2025
The Buckingham Pi theorem provides a structured method to simplify fluid dynamics problems by reducing complex systems of variables to dimensionless terms. In analyzing flow through a pipe, variables that define the system include the pipe's diameter, the fluid's velocity, its density, and viscosity. These can be combined into a single dimensionless term, the Reynolds number (Re), which captures their essential relationship. The first step in applying the Buckingham Pi theorem is identifying...
FAQs
The two dyes report different intracellular conditions. FDA enters cells and is converted by intracellular esterases into a green fluorescent product, linking green signal to retained cellular activity. PI behaves differently: it enters when the plasma membrane is damaged and binds nucleic acids, producing red fluorescence. Their contrasting signals allow researchers to evaluate cellular status within the same sample.
PI uptake depends on loss of normal plasma-membrane integrity. Cells with damaged membranes permit PI entry, after which the dye binds nucleic acids and produces red fluorescence. This makes PI particularly useful for identifying membrane-compromised cells rather than simply measuring cellular presence. In neuronal cultures or tissue-derived models, the red signal can therefore indicate injury-associated loss of membrane integrity.
Researchers examine the green and red fluorescence channels by microscopy or image-based quantification and compare the resulting signal patterns across cells or experimental groups. Green fluorescence provides a measure associated with viable cells, while red fluorescence identifies membrane-compromised cells. Counting or comparing these signals can reveal changes in survival after injury, treatment, or exposure to a potentially neurotoxic condition.
Changes in the relative green and red signals can show whether an experimental treatment is associated with reduced neuronal viability or increased membrane damage. This makes the assay useful for studying neurotoxicity, injury, and apoptosis-associated membrane damage in cultured neurons and tissue-derived neural models. The result is a rapid visual assessment that supports comparisons among control and treated conditions.
A typical workflow applies FDA and PI to the neural cell culture or tissue-derived model, allows their distinct fluorescence responses to develop within the sample, and then examines the preparation with fluorescence microscopy. Researchers can record green and red channels separately or use image-based quantification. The resulting measurements are compared across experimental conditions to assess changes in cell survival or membrane damage.
The method is useful when investigators need a rapid visual readout of cell health after a drug treatment, experimental injury, or neurotoxicity exposure. It can be applied to cultures and tissue-derived neural models, allowing researchers to compare viable-cell and membrane-damage signals between conditions. Its fluorescence-based format also supports microscopy-based inspection and quantitative image analysis of neuronal responses.