Tail Blood Sampling
Tail Blood Sampling - Related Videos
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.
05:12
Repeated Blood Collection from Tail Vein of Non-Anesthetized Rats with a Vacuum Blood Collection System
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Cited by 25 •
2017
Here, we describe a simple tail vein blood sampling method in non-anesthetized rats using a vacuum extraction tube system. This method reduces the risk of direct exposure to blood and simplifies taking multiple samples from a single venipuncture.
06:00
Modified Tail Vein and Penile Vein Puncture for Blood Sampling in the Rat Model
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Cited by 6 •
2023
Here, we present a protocol to offer rapid, easy, and reliable blood collection alternatives for the rat model. We describe three different blood sampling methods according to the context: tail vein puncture under anesthesia or on a conscious animal, and dorsal penile vein puncture under anesthesia.
05:58
Frequent Tail-tip Blood Sampling in Mice for the Assessment of Pulsatile Luteinizing Hormone Secretion
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Cited by 27 •
2018
Here we present a tail-tip blood sampling protocol for frequent sample collection in unrestrained mice. This method is useful for assessing patterns of pulsatile luteinizing hormone secretion and could be adapted for analysis of other circulating factors.
02:51
A Mouse Tail Snip Procedure for Peripheral Blood Collection and Plasma Isolation
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2025
In this video, we demonstrate a tail-snipping procedure in a mouse model to collect peripheral blood. The collected blood is subsequently subjected to centrifugation to separate plasma, which can be used for further experiments.
FAQs
The procedure can access either the tail vein or distal tail tissue, depending on the sampling approach described. After access, researchers collect a small volume for laboratory analysis. This distinction identifies where the sample originates, while the downstream purpose remains measurement of circulating biological signals that can be related to systemic physiology, neural function, or behavior.
Repeated collection allows a study to track changes over time rather than relying on a single measurement. Careful handling supports this longitudinal use by helping maintain a consistent procedure across sampling sessions. The resulting time-course data can be used to examine stress, disease progression, treatment response, or pharmacokinetics as these conditions change.
Blood measurements provide a peripheral view of processes relevant to the nervous system. Circulating hormones, metabolites, inflammatory markers, and drug concentrations can be examined alongside neural function or behavior. This pairing helps researchers connect systemic physiological changes with neuroscience outcomes, while recognizing that a blood measurement reflects peripheral physiology rather than directly measuring neural activity.
A basic workflow begins with appropriate restraint of the animal. The researcher then accesses the tail vein or distal tail tissue, collects a small sample, and applies pressure afterward to control bleeding. Consistent attention to these stages is important because the method’s value for repeated measurements depends on careful handling during every sampling session.
A sample can be analyzed for circulating hormones, metabolites, inflammatory markers, or drug concentrations. These measurements provide different views of systemic physiology and can be selected according to the research question. In neuroscience studies, the results may be interpreted alongside behavioral or neural findings to evaluate stress-related changes, disease processes, or responses to treatment.
Measuring drug concentrations in serial blood samples supports pharmacokinetic investigations, which examine how drug levels change over time. Repeated sampling can also help evaluate treatment response during disease or stress-related studies. When paired with neural function or behavior, these data help researchers relate circulating drug exposure to physiological and experimental outcomes.