Brain Region Dissection
Brain Region Dissection - Related Videos
05:31
Micro-dissection of Rat Brain for RNA or Protein Extraction from Specific Brain Region
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Cited by 171 •
2007
Micro-dissection of rat brain into various regions is extremely important for the study of different neurodegenerative diseases. This video demonstrates micro-dissection of four major brain regions include olfactory bulb, frontal cortex, striatum and hippocampus in fresh rat brain tissue. Useful tips for quick removal of respective regions to avoid RNA and protein degradation of the tissue are given.
03:54
Zebrafish Brain Dissection: A Technique of Fish Neurobiology
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2023
This video describes the technique of microdissection of the brain from an adult zebrafish. This method helps in obtaining whole brain derived neuorospheres that can be studied further.
08:51
Cerebellar Regional Dissection for Molecular Analysis
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Cited by 4 •
2020
Different cerebellar regions have been implicated to play a role in distinct behavioral outputs, yet the underlying molecular mechanisms remain unknown. This work describes a method to reproducibly and quickly dissect cerebellar cortex of the hemispheres, anterior and posterior regions of the vermis, and the deep cerebellar nuclei in order to probe for molecular differences by isolating RNA and testing for differences in gene...
07:37
The Gateway to the Brain: Dissecting the Primate Eye
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Cited by 7 •
2009
The non-human primate is an important translational species for our understanding of development and aging. The anatomical organization of the primate retina may provide important insights into normal and pathological conditions in humans.
08:00
Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions
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Cited by 4 •
2020
Here we present a protocol for in vitro isolation of multiple glial cell populations from a mouse CNS. This method allows for the segregation of regional microglia, oligodendrocyte precursor cells, and astrocytes to study the phenotypes of each in a variety of culture systems.
FAQs
Anatomical landmarks provide reference points for orienting the brain and identifying the boundaries of a target area. Accurate orientation helps the investigator distinguish the intended region from neighboring structures before cutting. This reduces unwanted tissue carryover, or contamination, and makes samples from different specimens more comparable for microscopy, staining, biochemical analysis, or molecular assays.
Neighboring tissue can contribute its own cells, molecules, or structural features to a sample, obscuring signals that belong to the selected region. Controlled removal therefore protects the specificity of downstream measurements. The issue is especially important when comparing regional gene expression, molecular composition, or cellular properties, because contamination can produce misleading differences or weaken true regional patterns.
Brain region dissection can begin with fresh, fixed, or sectioned tissue, and each condition provides a different context for isolating a target. Fresh tissue may support analyses requiring preserved biological material, whereas fixed or sectioned tissue is suited to approaches that depend on maintained structure or accessible anatomical landmarks. The chosen condition should match the planned examination.
Reproducibility depends on consistent orientation, comparable sampling boundaries, controlled cutting, and preservation of tissue quality. If investigators collect different amounts of adjacent tissue or alter the target location between specimens, regional comparisons become difficult to interpret. Applying the same anatomical criteria and handling approach across samples strengthens links between measured molecular or cellular properties and the brain region itself.
A typical workflow begins by orienting the specimen and locating the target with anatomical landmarks. The investigator then performs controlled cuts to isolate the selected area while limiting neighboring tissue. After collection, the sample can be directed to microscopy, staining, biochemical analysis, or molecular assays. Consistent sampling and careful preservation support meaningful interpretation of the resulting data.
The technique is useful when researchers need to connect a defined anatomical area with measurable structure, molecular composition, or cellular properties. It supports investigations of neural circuits, gene expression, neurodegenerative disease, and injury. Examining regions separately can reveal relationships that would be obscured if tissue from multiple anatomical areas were analyzed together.