Brain Tissue Water Influx
Brain Tissue Water Influx - 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.
02:08
A Hydrophobic Tissue Clearing Method for a Rat Brain Tissue Sample
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2025
Source: Kirchner, K.N., et al., A Hydrophobic Tissue Clearing Method for Rat Brain Tissue. J. Vis. Exp. (2020).This video demonstrates the method of hydrophobic tissue clearing of a rat brain tissue sample. The sample is sequentially dehydrated in methanol, treated with a dichloromethane and methanol mixture to dissolve lipids and pigments, and transferred to dibenzyl ether for complete tissue clearing, enabling detailed imaging without thin sectioning.
08:14
Assessing T-cell Receptor-Induced Calcium Influx Using a Calcium Indicator Dye
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2025
This video analyzes T-cell receptor-induced calcium influx in T-cells. Anti-CD3 antibodies activate the T-cell signaling pathways, leading to an increase in intracellular calcium ions that bind with Indo-1 dye. In flow cytometry, a spectrum shift from the calcium-free state to the calcium-bound state correlates with T-cell receptor-induced calcium influx.
08:47
Preparation of Mouse Brain Tissue for Immunoelectron Microscopy
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Cited by 52 •
2010
We describe a protocol for transcardiac perfusion of mice, removal and sectioning of the brain, as well as immunoperoxidase staining, resin embedding, and ultrathin sectioning of the brain sections. Upon completion of these procedures, the immunostained material is ready for examination with transmission electron microscopy.
11:31
A Chromatin Assay for Human Brain Tissue
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Cited by 16 •
2008
Until recently, expression studies on human brain were limited to quantification of RNA or protein. With the chromatin immunoprecipitation techniques described in this paper, it will be possible to map histone methylation and other epigenetic regulators of gene expression in postmortem brain.
FAQs
Osmotic gradients arise when ion or solute concentrations differ across a cell membrane, while hydrostatic gradients reflect differences in physical fluid pressure. Either gradient can favor water entry into neural tissue. The resulting shift may change cellular volume and tissue pressure, linking local chemical or mechanical disturbances to altered brain function.
Aquaporin channels provide membrane pathways that facilitate water movement when osmotic or hydrostatic conditions favor influx. Their involvement connects changes in extracellular or intracellular solute concentrations with altered water distribution in neurons and glial cells. Studying this relationship helps explain how molecular transport processes contribute to tissue swelling and possible functional disruption.
Brain Tissue Water Influx provides a framework for examining two distinct edema contexts named in neuroscience research. Cytotoxic edema concerns water-related cellular swelling, whereas vasogenic edema involves changes associated with the blood-brain barrier and surrounding tissue. Separating these contexts helps investigators relate water movement to different injury mechanisms and tissue compartments.
The main influencing conditions are shifts in ion and solute concentrations, the presence of osmotic or hydrostatic gradients, and the behavior of aquaporin channels. The response also depends on which neural structures are affected, including neurons, glial cells, and the blood-brain barrier. Together, these variables shape cellular volume, tissue pressure, and functional consequences.
Studies can examine both water movement itself and its consequences for neural tissue. Relevant observations include changes in cellular volume, tissue pressure, neuron and glial-cell responses, and blood-brain barrier effects. Relating these measurements to altered brain function allows investigators to connect physical water shifts with the progression of edema-related damage.
This process is particularly relevant after injury, stroke, infection, or metabolic disruption, because each condition can disturb ion or solute balance and promote edema-related changes. Research in these settings can clarify disease mechanisms, identify imaging biomarkers, and evaluate strategies intended to limit secondary brain damage rather than only the initial insult.