Bone Specimen Preparation
Bone Specimen Preparation - Related Videos
07:29
Undecalcified Bone Preparation for Histology, Histomorphometry and Fluorochrome Analysis
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Cited by 32 •
2010
Undecalcified bone histology provides important information for a variety of clinical and research applications. It is technically challenging, particularly with large size specimens. This video illustrates the process of producing good quality sections and demonstrates the technical difficulties and methods with which to overcome them.
07:18
Bone Conditioned Medium: Preparation and Bioassay
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Cited by 13 •
2015
We describe here how to prepare bone-conditioned medium (BCM) and test its activity in vitro.
10:54
Cryo-electron Microscopy Specimen Preparation By Means Of a Focused Ion Beam
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Cited by 5 •
2014
Cryo Electron Microscopes, either Scanning (SEM) or Transmission (TEM), are widely used for characterization of biological samples or other materials with a high water content1. A SEM/Focused Ion Beam (FIB) is used to identify features of interest in samples and extract a thin, electron-transparent lamella for transfer to a cryo-TEM.
04:05
Safe Viral Specimen Preparation for Transmission Electron Microscopy
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2026
Source: Blancett, C. D., et al. Utilization of Capsules for Negative Staining of Viral Samples within Biocontainment. J. Vis. Exp. (2017).This video demonstrates the safe viral specimen preparation for transmission electron microscopy. The viral particles are fixed with glutaraldehyde, stained with an electron-dense agent, and subjected to vapor fixation with osmium tetroxide to stabilize structures and ensure complete inactivation, ensuring safe handling of viral samples while improving...
08:20
Cell Block Preparation from Cytology Specimen with Predominance of Individually Scattered Cells
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Cited by 67 •
2009
Shidham's method for preparation of cell blocks with AV-marker from cytology specimens containing individually scattered cells and small cell groups.
FAQs
Both are used to remove the mineral component of bone so that the tissue can be processed for microscopic examination. The choice of an acid or a chelating solution is therefore part of controlling access to cellular features, marrow, and extracellular matrix. Their use must be balanced against the need to preserve structural detail.
Fixation stabilizes the bone tissue before mineral removal and later processing. This early stabilization helps preserve the cellular and structural features that researchers want to examine after decalcification, sectioning, and staining. Without maintaining tissue integrity at the beginning, subsequent preparation steps may provide less reliable microscopic information about bone architecture and its components.
Decalcification must remove enough mineral to make the specimen accessible for processing, but excessive treatment can damage tissue detail. The resulting loss may reduce the clarity of bone architecture, cells, marrow, or extracellular matrix during microscopy. Successful preparation therefore requires a balance between mineral removal and preservation of the features being investigated.
After mineral removal, the specimen still requires several preparation stages before microscopic examination. Dehydration prepares the tissue for paraffin embedding, embedding supports the specimen during sectioning, and staining makes relevant features more visible. Keeping these stages in sequence converts stabilized, decalcified tissue into sections that can be examined for cellular and structural characteristics.
Prepared sections can provide access to bone cells, marrow, extracellular matrix, and overall tissue architecture. Examining these features together allows investigators to relate cellular observations to the organization of the surrounding tissue. The quality of that interpretation depends on preserving detail throughout fixation, mineral removal, embedding, sectioning, and staining.
In biology, prepared bone specimens support investigations of skeletal development, bone remodeling, disease, and injury. They can also be used to examine how bone responds to experimental treatments. Microscopic observations from these specimens connect tissue structure and cellular features with biological changes occurring during normal development or altered conditions.