Frozen Sections
Frozen Sections - Related Videos
02:37
Frozen Mouse Brain Tissue Sectioning: A Procedure to Obtain Thin Frozen Tissue Sections from Frozen Murine Brain Tissue
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2023
In this video, we demonstrate the sectioning of a frozen mouse brain tumor tissue using a cryostat. The frozen brain tissue sections so obtained are stored at low temperatures until further analysis.
07:28
Paraffin-Embedded and Frozen Sections of Drosophila Adult Muscles
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Cited by 42 •
2010
Identification of mechanisms underlying muscle damage is crucial. Here we present the histological technique for preparing paraffin-embedded and frozen sections of Drosophila thoracic muscles. This allows analysis of muscle morphology and localization of protein and other muscle cell components.
11:13
Indirect Immunofluorescence on Frozen Sections of Mouse Mammary Gland
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Cited by 19 •
2015
The indirect immunofluorescence protocol described in this article allows the detection and the localization of proteins in the mouse mammary gland. A complete method is given to prepare mammary gland samples, to perform immunohistochemistry, to image the tissue sections by fluorescence microscopy, and to reconstruct images.
03:30
Snap Freezing of Muscle Tissue for Sectioning: A Protocol to Obtain Ultrathin Sections of Rapidly Frozen Murine Muscle Tissue
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2023
This video describes the procedure for snap freezing muscle tissue and obtaining its thin sections. The technique can help study cancer-related cachexia in colon cancer mouse models.
03:32
Cresyl Violet Staining of Tissue Sections: A Staining Procedure to Visualize Cartilage and Bones in Frozen Mouse Embryo Sections
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2025
This video describes cresyl violet staining procedure to visualize bones and cartilage in coronal sections of frozen mouse embryos. This staining technique helps to differentiate bones and cartilage with distinct colors from the surrounding tissues.
FAQs
The cryostat maintains tissue at a low temperature so a specialized blade can produce thin slices. This temperature-controlled cutting step makes microscopy possible soon after collection while avoiding lengthy fixation and processing. The resulting sections can be mounted on slides and stained, allowing researchers to examine cellular structure while the specimen remains suitable for additional analyses.
Rapid freezing is important when chemical fixation could alter molecules needed for analysis. By limiting that processing, frozen sections can preserve enzyme activity, lipid distribution, and antigen localization for microscopic evaluation. The method therefore supports more than rapid morphology assessment, because it can reveal biochemical or molecular patterns alongside tissue structure in fresh or fragile samples.
Frozen sections prioritize rapid access to tissue and preservation of molecules that may be changed by chemical fixation. They can be prepared and examined soon after collection, whereas fixed preparations require longer processing before microscopy. This distinction helps investigators choose frozen material when timely evaluation or preservation of enzyme activity, lipids, or antigen localization is more important.
A specimen is rapidly frozen, placed in a cryostat, and cut into thin slices with its specialized blade. Each section is transferred onto a slide, then stained for microscopic examination. This workflow connects temperature-controlled cutting with slide preparation and visualization, enabling researchers or clinicians to evaluate tissue morphology and selected molecular or biochemical features without lengthy processing.
They are especially useful when results are needed soon after tissue collection, when samples are fresh or fragile, or when chemical processing might affect important molecules. Pathology can use the rapid assessment of tissue morphology, while developmental research can examine changing biological structures. The approach also supports studies of enzyme activity, lipid distribution, and antigen localization.
Microscopy can reveal cellular structure together with the distribution or presence of selected tissue components. Depending on the study, researchers may assess morphology, enzyme activity, lipid distribution, or antigen localization. This combination is valuable in biology because it links visible tissue organization with preserved biochemical or molecular features, supporting pathology, developmental research, and analyses of fragile specimens.