Brain Injection Technique
Brain Injection Technique - Related Videos
08:28
Zebrafish Brain Ventricle Injection
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Cited by 72 •
2009
After neural tube formation, the neuroepithelium constricts and folds while the tube fills with embryonic cerebrospinal fluid (eCSF) to form the embryonic brain ventricles. We developed this ventricle injection technique to better visualize the fluid filled space in contrast to the neuroepithelial shape in a live embryo.
06:53
A Simple Alternative to Stereotactic Injection for Brain Specific Knockdown of miRNA
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Cited by 6 •
2015
MicroRNAs play crucial roles in the brain and are potential targets for modeling neuro-degeneration. However, perturbing miRNA levels is challenging due to the short length of miRNA and inaccessibility of the brain tissue. This video presents a method for antagomir design and brain specific delivery using a neuropeptide in mice.
07:43
Intracarotid Cancer Cell Injection to Produce Mouse Models of Brain Metastasis
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Cited by 32 •
2017
Brain metastasis has become an urgent unmet medical need as its incidence has increased while therapeutic options have remained palliative. Creating experimental animal models of brain metastasis via intracarotid arterial injection of cancer cells facilitates mechanistic studies of the disease biology and evaluation of novel intervention regimens.
03:15
A Hypertonic Saline Injection Technique for Inducing Glaucoma in Rats
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2025
This video demonstrates glaucoma induction in an anesthetized rat by injecting hypertonic saline into the episcleral vein. The saline enters the trabecular meshwork via Schlemm's canal, causing tissue scarring, which blocks aqueous humor outflow and raises intraocular pressure. The elevated pressure damages retinal ganglion cells, leading to glaucoma.
07:54
Applying Stereotactic Injection Technique to Study Genetic Effects on Animal Behaviors
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Cited by 15 •
2015
Stereotactic injection of lentiviruses expressing cDNAs or shRNAs can modulate gene expression in specific brain areas of mice. Here, we present a protocol to combine stereotactic injections with behavioral tasks, such as the Open Field Test (OFT) and the Forced Swim Test (FST).
FAQs
Stereotaxic coordinates translate a target brain region into a reproducible positioning plan. They specify where the needle or cannula should be aligned within the brain, supporting consistent access to a defined location. This precision is important when experiments examine neural circuits or regional signaling, because comparable placement improves consistency across experimental measurements.
Controlled pressure and limited injection volume help regulate how material is deposited in brain tissue. Pressure supports deliberate release, while volume control helps reduce unnecessary tissue disruption and variation between experiments. These controls are especially important when researchers need to relate an observed behavioral, circuit, or molecular effect to a targeted intervention.
The injected substance should match the biological question. Drugs can be used when researchers investigate neurochemical signaling, tracers can help examine neural structure, and viral vectors can support studies of gene expression or circuit manipulation. Choosing among these materials links the physical delivery step to the type of neuroscience evidence being sought.
A typical workflow combines stereotaxic positioning, a small cranial opening, placement of a needle or cannula, and controlled deposition. The operator uses coordinates to identify the intended region, positions the delivery device, and regulates release into the tissue. Maintaining this sequence helps align the material with the experimental target while limiting avoidable disruption.
Researchers use Brain Injection Technique when an experiment requires access to a defined brain region. The approach can support behavioral studies, neural circuit manipulation, investigations of neurochemical signaling, and gene-expression research. It is therefore useful for examining how a localized delivery relates to changes in brain function or behavior within a controlled experimental design.
In disease-focused neuroscience, targeted delivery can help investigate disease mechanisms and validate experimental models. By placing a selected substance in a defined region and controlling the amount delivered, researchers can examine regional neural structure or function in a consistent way. This supports comparisons across experiments and connects circuit-level or molecular questions with behavioral studies.