Tail Vein Injection
Tail Vein Injection - Related Videos
04:21
Quantifying Bacterial Load in the Mouse Heart Following Tail Vein Injection of Listeria monocytogenes
0 Views •
2026
Source: McMullen, P. D., Freitag, N. E. Assessing Bacterial Invasion of Cardiac Cells in Culture and Heart Colonization in Infected Mice Using Listeria monocytogenes. J. Vis. Exp. (2015)This video demonstrates the injection of Listeria monocytogenes into the tail vein of a mouse to establish systemic infection. It shows bacterial circulation, organ colonization, and the quantification of bacterial load in the heart by homogenizing tissue, performing serial dilutions, and plating.
04:01
Tail Vein Injection: A Method to Administer Cancer Cells for Metastatic Studies in a Mouse Model
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2023
This video describes a technique of injecting labeled cancer cells using tail vein injection into a mouse model. We further monitor breast cancer metastasis formation, and growth using real-time in vivo live animal imaging.
03:48
Hydrodynamic Gene Delivery: A Technique for In Vivo Transfection of Exogenous DNA in Murine Hepatocytes via Tail Vein Injection
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2025
This video describes the technique of genetic in vivo transfection of murine hepatocytes by hydrodynamic tail vein injection. This transfection system generates a long-term expression of the transgene in the hepatocytes.
07:11
Sampling Blood from the Lateral Tail Vein of the Rat
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Cited by 82 •
2015
Blood samples are useful for assessing biomarkers of physiological states or disease in vivo. Here we describe the methodology to sample blood from the lateral tail vein in the rat. This method provides rapid samples with minimal pain and invasiveness.
04:19
A New Best Practice for Validating Tail Vein Injections in Rat with Near-infrared-Labeled Agents
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Cited by 8 •
2019
Here we present a method to validate tail vein injections in rats by utilizing near-infrared fluorescence imaging data from dyes incorporated into agents or biological probes. The tail is imaged before and after the injection, the fluorescent signal is quantified, and an assessment of the injection quality is made.
FAQs
Placing the experimental material inside the vein gives it direct access to the bloodstream, supporting rapid circulation and delivery to tissues throughout the body. This timing is especially important when researchers evaluate pharmacokinetics, examine biological responses, or assess imaging, gene-based, or cell-based interventions that depend on consistent systemic exposure.
Reliable results depend on accurate venous access and controlled delivery. If the material does not remain within the vessel, leakage can cause unintended tissue exposure and make the administered dose less consistent. Careful placement and regulated delivery therefore help reduce tissue injury while improving comparability among experimental animals and treatment groups.
The needle or catheter provides the access route into the lateral tail vein, while the delivered material may be a fluid, drug, cell preparation, or other experimental substance. Matching the access device and delivery approach to the intended material supports controlled administration, which is necessary for dependable dosing and interpretable biological measurements.
This technique can deliver several classes of research materials, including fluids, drugs, cells, and other experimental substances. That flexibility allows the same intravenous approach to support pharmacokinetic studies, disease models, imaging investigations, and assessments of gene or cell-based therapies, although each study still depends on accurate access and controlled administration.
The core workflow requires locating a lateral vein in the animal’s tail, placing a needle or catheter within that vessel, and delivering the selected material in a controlled manner. Researchers must also maintain accurate venous access throughout administration, because placement outside the vessel can increase tissue injury or cause unintended leakage.
Tail Vein Injection is useful when a study requires intravenous administration for rapid systemic circulation. Its applications include measuring pharmacokinetics, creating or studying disease models, supporting imaging experiments, and evaluating gene or cell-based therapies. These uses make it relevant to investigations of how experimental materials distribute and act throughout the body.
Interpretation depends partly on whether the intended dose entered the bloodstream consistently. Accurate access and controlled delivery improve confidence that observed findings reflect the drug, cells, fluid, or other material rather than tissue leakage or variable administration. This consistency strengthens comparisons across animals and supports more reliable experimental outcomes in biology.