En Bloc Tissue Retrieval
En Bloc Tissue Retrieval - Related Videos
10:01
En Face Preparation of Mouse Blood Vessels
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Cited by 20 •
2017
A procedure for making en face preparations of the mouse carotid artery and aorta is described. Such preparations, when immunofluorescently stained with specific antibodies, enable us to study localization of proteins and identification of cell types within the entire vascular wall by confocal microscopy.
08:42
Retrieval of Mouse Oocytes
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Cited by 13 •
2007
This protocol illustrates the technique for extracting oocytes or early-stage fertilized embryos from the oviduct of mice. The ability to identify the infindibulum and insert a blunt end needle into it is essential to correctly performing the procedure.
10:48
SDS-PAGE/Immunoblot Detection of Aβ Multimers in Human Cortical Tissue Homogenates using Antigen-Epitope Retrieval
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Cited by 26 •
2010
We describe a technique for the preparation of clarified human cortical homogenates, protein separation by SDS-PAGE, antigen retrieval and immunoblotting with an antibody to the Aβ peptide. Using this protocol, we consistently detect monomeric and multimeric Aβ in cortical tissue from humans with Alzheimer's pathology.
01:12
Retrieval
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2025
Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning. Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
06:30
Ocular Therapeutic Delivery and Advanced Tissue Retrieval in Adult Rats
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2025
This study presents a methodology for the delivery of therapeutics into the retina and optic nerves of the adult rat. Additionally, a unique tissue retrieval method is introduced for a top-down en bloc collection of the optic nerve and retina in an adult rat.
FAQs
Maintaining continuous anatomy allows researchers to relate neural circuits, lesions, and interfaces between brain regions within the same structural context. This spatial continuity helps distinguish genuine anatomical relationships from patterns that might be misinterpreted after piecemeal collection. It is especially valuable when mapping how pathological or developmental changes affect neighboring structures.
Careful handling and fixation stabilize the retrieved specimen before further processing. This step helps maintain the structural organization needed for sectioning, staining, imaging, and molecular analysis. If spatial relationships are disrupted during removal or stabilization, later observations may no longer represent the original arrangement of brain regions, lesions, or tissue interfaces.
Piecemeal collection can separate structures whose relationships are important for interpretation, whereas an intact retrieval preserves those structures together for subsequent analysis. The distinction matters when researchers need to examine boundaries, connected anatomical features, or pathological changes across a continuous region. Thus, the retrieval strategy influences how confidently structural findings can be mapped.
After careful dissection from surrounding structures, the specimen is stabilized through handling and fixation. It can then undergo sectioning, staining, imaging, or molecular analysis, depending on the research question. Using the same preserved specimen across these stages supports correlation between anatomy and observed cellular, structural, pathological, or molecular features.
The approach is useful for developmental studies, experimental investigations, and neuropathological research in which location and tissue relationships affect interpretation. It supports examination of neural circuits, lesions, interfaces between brain regions, and pathological changes in their original context. These applications benefit from retaining a continuous anatomical reference during analysis.
An intact specimen can support accurate histological mapping and visualization of structural relationships through sectioning, staining, and imaging. It may also provide material for molecular analysis while retaining anatomical context. Together, these outcomes help researchers connect regional structure with lesions, neural circuitry, interfaces, or pathological changes rather than evaluating each feature in isolation.