Lymphatic Tracer Injection
Lymphatic Tracer Injection - Related Videos
03:31
Intramuscular Injections Along the Motor End Plates to Shuttle Tracers Directly into Rat Motor Neurons
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2025
Source: Mohan, R., et al. Intramuscular Injections Along the Motor End Plates: A Minimally Invasive Approach to Shuttle Tracers Directly into Motor Neurons. J. Vis. Exp. (2015)This video demonstrates the targeted delivery of a fluorescent neuronal tracer into motor neurons via intramuscular injection at the motor end plates (MEPs). It outlines the steps involved in preparing the rat, injecting the tracer, and assessing labeled motor neurons for neurotherapeutic potential.
10:57
Intramuscular Injections Along the Motor End Plates: A Minimally Invasive Approach to Shuttle Tracers Directly into Motor Neurons
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Cited by 20 •
2015
The efficacy of intramuscular uptake and retrograde transport of molecules to corresponding motor neurons depends on the location of the injection sites with respect to the motor end plates (MEPs). Here, we describe how to locate MEPs on skeletal muscles to optimise retrograde transport of tracers into motor neurons.
07:59
Integrated Protocol for Assessing Meningeal Lymphatics: Cisterna Magna Injection, Lymph Node Imaging, Meningeal Dissection, and Whole-Mount Staining
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2026
Here, a protocol is presented to assess mouse meningeal lymphatic vessels (MLVs), which play an important role in multiple neurologic diseases. The goal of this protocol is to provide an integrated method that enables both functional evaluation of tracer drainage and detailed morphological characterization of the dorsal MLVs network.
03:37
Tracer Molecule Delivery in the Cisterna Magna: A Method to Deliver Fluorescent Tracer Molecules via Direct Cannulation of the Cisterna Magna in Pig
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2025
This video describes the protocol for tracer molecule delivery via direct cannulation of the cisterna magna in a pig brain. This method helps visualize the distribution of cerebrospinal fluid in the glymphatic system.
14:06
Preparation of an Awake Mouse for Recording Neural Responses and Injecting Tracers
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Cited by 26 •
2012
Electrophysiological characterization of neuronal responses is important for understanding brain function and for guiding the placement of dyes for pathway tracing. However, many studies are performed in anesthetized animals. To understand brain function without anesthetics, we developed a method to record neuronal response properties and inject dyes in awake mouse.
FAQs
A sentinel node represents a key drainage destination associated with the injected region. Detecting tracer there helps researchers and clinicians focus examination on a specific node rather than assessing lymphatic tissue without guidance. In cancer research, this supports investigation of regional spread patterns and informs the design of sentinel lymph node biopsy procedures.
The tracer follows lymphatic vessels away from the injection site and concentrates in draining nodes. Imaging or surgical detection then shows which pathways and regional nodes receive lymphatic flow from that area. Comparing these distributions helps characterize lymphatic anatomy and examine how drainage patterns relate to cancer progression and potential metastatic spread.
Mapping lymphatic transport gives researchers a way to study the routes connecting a tumor region with regional lymph nodes. When those routes are evaluated alongside tumor-spread patterns, the resulting information can support research into metastasis and cancer progression. This connection also helps refine experimental approaches for disease staging and treatment planning.
The procedure begins by introducing a detectable tracer near the tumor. Researchers then allow or observe its movement through local lymphatic vessels toward draining or sentinel nodes. They visualize the distribution with imaging or detect the tracer during surgery. The recorded pattern can then be used to evaluate regional lymphatic anatomy and node involvement.
Researchers can use the technique to evaluate lymphatic anatomy and drainage patterns in experimental models. The mapped distribution helps characterize how a tumor-associated region connects with regional nodes and supports studies linking lymphatic transport to metastasis. These observations can also guide the development or assessment of procedures used for cancer staging.
Tracer distribution identifies the nodes receiving drainage from the region near a tumor, providing a basis for selecting nodes for focused examination. In cancer research, this information helps evaluate and refine sentinel lymph node biopsy procedures. It also supports comparisons of lymphatic drainage patterns when investigators study regional disease spread or staging strategies.