Autoradiography Analysis
Autoradiography Analysis - Related Videos
12:03
Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
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Cited by 14 •
2016
Here we present a protocol to describe the localization of angiotensin II Type 1 receptors in the rat brain by quantitative, densitometric, in vitro receptor autoradiography using an iodine-125 labeled analog of angiotensin II.
10:16
Autoradiography as a Simple and Powerful Method for Visualization and Characterization of Pharmacological Targets
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Cited by 31 •
2019
The method of autoradiography is routinely used to study binding of radioligands to tissue sections for determination of qualitative or quantitative pharmacology.
09:32
Optimized Analysis of Proteins from Xenopus Oocytes and Embryos by Immunoblotting
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2025
This article describes a protocol for analyzing proteins from Xenopus oocytes and embryos by immunoblotting. Collection steps are described, followed by steps corresponding to sample processing, SDS-PAGE, transfer, antibody staining, and imaging. The protocol emphasizes studying translational regulatory protein complexes with endogenous antibodies and antibodies against protein affinity tags.
15:04
A Neuronal and Astrocyte Co-Culture Assay for High Content Analysis of Neurotoxicity
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Cited by 46 •
2009
This article describes a novel protocol and reagent set designed for sensitive measurement of neurotoxic effects of compounds and treatments on co-cultures of neurons and astrocytes using high content analysis. Results demonstrate that high content analysis represents an exciting novel technology for neurotoxicity assessment.
10:39
Automated Analysis of Intracellular Phenotypes of Salmonella Using ImageJ
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Cited by 3 •
2022
Salmonella invades and replicates inside intestinal epithelial cells both in Salmonella-specific vacuoles and free in the cytosol (hyper-replication). A high-throughput fluorescence microscopy-based protocol is described here to quantify the intracellular phenotypes of Salmonella by two complementary image analyses through ImageJ, reaching single-cell resolution and scoring.
FAQs
The key readouts are signal position and intensity. Radioactive emissions from the labeled compound expose photographic film or a phosphor imaging screen, creating a pattern that can be compared across regions of a sample. Position indicates where the tracer occurs, while signal intensity reflects its relative amount, allowing molecular distributions to be assessed spatially and quantitatively.
Autoradiography analysis can use either photographic film or a phosphor imaging screen as the recording surface for radioactive emissions. The source material does not assign them different biological interpretations: the resulting image is evaluated by where signals appear and how strong they are. This supports analysis of tissues, cells, and separated laboratory materials.
The pattern reflects how the radiolabeled substance is distributed within the analyzed material. Regions containing relatively more tracer produce stronger signals, whereas signal position maps where the compound is located. Interpretation therefore connects image intensity and spatial pattern with molecular movement, synthesis, binding, or presence within particular regions of a tissue, cell, or separated sample.
A researcher examines a biological sample or separated laboratory material containing a radiolabeled compound, allows its emissions to expose photographic film or a phosphor imaging screen, and then evaluates the resulting signal pattern. This workflow yields localization information and relative signal measurements, linking the tracer to specific regions or molecular activities within the analyzed material.
A radiolabeled compound associated with the process produces signals in the material being examined. Researchers analyze where those signals occur and how intense they are, using the pattern to assess synthesis-related distributions across defined sample regions. In biological techniques, these measurements support investigation of gene expression, cell function, and the organization of molecular activity.
The method provides spatial information while revealing the distribution of a radiolabeled participant in a binding study. Signal location can show which regions contain the tracer, and relative intensity can indicate where more or less labeled material is present. This helps connect molecular binding patterns with the organization of tissues or other biological samples.
This approach is useful when the question concerns where a labeled metabolite or drug is located within cells or tissues and how its relative distribution differs across the sample. The resulting map supports assessment of compound movement and treatment effects, while connecting tracer location with tissue organization and broader measures of cell function.