Microdissection Brain Regions
Microdissection Brain Regions - Related Videos
09:29
Stereotactic Atlas-Guided Laser Capture Microdissection of Brain Regions Affected by Traumatic Injury
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Cited by 3 •
2017
We describe the use of laser capture microdissection to obtain samples of distinct cell populations from different brain regions for gene and microRNA analysis. This technique allows the study of differential effects of traumatic brain injury in specific regions of the rat brain.
08:06
Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
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Cited by 28 •
2021
We present a hands-on, step-by-step, rapid protocol for mouse brain removal and dissection of discrete regions from fresh brain tissue. Obtaining brain regions for molecular analysis has become routine in many neuroscience labs. These brain regions are immediately frozen to obtain high quality transcriptomic data for system level analysis.
10:06
Non-Laser Capture Microscopy Approach for the Microdissection of Discrete Mouse Brain Regions for Total RNA Isolation and Downstream Next-Generation Sequencing and Gene Expression Profiling
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Cited by 11 •
2011
RNA expression profiling of discrete mouse brain regions requires a precise and repeatable tissue collection strategy. A protocol that uses both coronal brain sectioning and tissue corer-assisted microdissection is described here. The yield and quality of total RNA obtained from the resulting samples confirms the utility of the outlined method.
02:05
Generating a Coronal Brain Slice Exposing the Amygdala Regions from a Mouse Brain
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2025
This video demonstrates the preparation of thin coronal brain slices from a murine brain, exposing the amygdala regions rich in synaptic connections from the medial prefrontal cortex. The slices are then recovered in oxygenated artificial cerebrospinal fluid to maintain neuronal viability.
02:41
Cryopreserved Tissue Section Fixation and Staining: A Procedure to Process Frozen Brain Tissue Sections for Laser Microdissection
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2023
This video presents the fixation and staining method to process frozen mouse brain tumor tissue. The processed tissue helps differentiate and obtain a specific population of cells during subsequent laser capture microdissection.
FAQs
Anatomical landmarks provide the spatial reference for distinguishing one brain area from neighboring tissue. By following these boundaries with specialized cutting tools, researchers can remove a sample while retaining its association with a defined neural region. This precision allows later molecular, cellular, or pathological findings to be interpreted in relation to the specific area rather than to brain tissue as a whole.
Whole-brain measurements combine signals from many anatomically distinct areas, which can make regional differences difficult to identify. Separating defined samples allows researchers to compare molecular or cellular features between locations and determine whether a change is concentrated in a particular area. The resulting regional resolution supports more precise links between tissue changes, neural circuits, and functions.
The tissue may be freshly collected, fixed, or already sectioned, and each condition provides a different starting point for isolating a region. Researchers select specialized cutting procedures appropriate to the available specimen while using anatomical landmarks to maintain regional identity. This flexibility permits comparable regional investigations across different experimental materials and study designs.
A general workflow begins by identifying the target area through anatomical landmarks, selecting the appropriate tissue preparation, and using specialized cutting tools to remove the region of interest. The isolated material is then retained for analysis of gene expression, proteins, cellular composition, or pathology. Careful separation at each stage helps preserve the connection between the result and its anatomical source.
This approach supports questions about how molecular or cellular features differ among brain areas, developmental stages, disease models, or treatment conditions. Researchers can examine gene expression, proteins, cellular composition, and pathological changes in anatomically defined samples. These comparisons help identify where a change occurs and provide more focused evidence about regional contributions to neuroscience findings.
Analyzing separately isolated areas helps connect local molecular, cellular, or pathological changes with the neural circuits and functions associated with those regions. In disease models or treatment studies, researchers can compare affected and unaffected areas or evaluate differences across conditions. This regional perspective may clarify whether an observed brain change is widespread or linked to particular anatomical systems.