Conscious Rat Model
Conscious Rat Model - Related Videos
11:12
Hyperinsulinemic-Euglycemic Clamp in the Conscious Rat
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Cited by 34 •
2011
The hyperinsulinemic-euglycemic clamp is the "gold standard" for the assessment of insulin action. Insulin is infused at a constant rate stimulating glucose uptake. The amount of exogenous glucose infused to counter this drop is indicative of insulin sensitivity. Here the procedure is performed on a conscious, unrestrained rat.
11:22
Implantation and Recording of Wireless Electroretinogram and Visual Evoked Potential in Conscious Rats
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Cited by 1 •
2016
We show surgical implantation and Recording procedures to measure visual electrophysiological signals from the eye (electroretinogram) and brain (visual evoked potential) in conscious rats, which is more analogous to the human condition where recordings are conducted without anesthesia confounds.
08:31
Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
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Cited by 5 •
2016
An EEG experimental protocol is designed to clarify the interplay between conscious and non-conscious representations of emotional faces in patients with Asperger's syndrome. The technique suggests that patients with Asperger's syndrome have deficits in non-conscious representation of emotional faces, but have comparable performance in conscious representation with healthy controls.
03:52
Subclavian Vein Blood Sampling in Conscious Rats
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2023
Here we present a combination of effective rat restriction and subclavian vein puncture methods that enable rapid, safe, and repeated blood collection in rats without anesthesia.
04:52
Repetitive Blood Sampling from the Subclavian Vein of Conscious Rat
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Cited by 2 •
2022
The present protocol describes a simple and efficient method for collecting blood from the subclavian vein in rats. It enables rapid, timely, and easily identifiable sampling without anesthesia and obtains high-quality blood through repetitive sample collection.
FAQs
The main experimental advantage is that anesthesia-related interference is reduced. Anesthetic agents can mask physiological or functional responses, so measurements taken while rats are awake may better reflect changes in blood pressure, heart rate, metabolism, behavior, or drug response. This distinction matters when investigators need to determine whether an intervention acts in an intact, functioning organism rather than under altered physiological conditions.
Several response domains can be examined within the same general framework: physiological variables such as blood pressure and heart rate, metabolic changes, behavior, disease-related responses, and reactions to drugs. The choice depends on the research question and monitoring setup. Considering these domains together can help connect a treatment’s measurable physiological effect with broader functional or behavioral change.
Keeping the rat awake changes the interpretation of recorded responses because anesthetic agents are not present to alter or conceal them. An anesthetized preparation may be useful for measurements made under anesthesia, whereas the conscious approach focuses on responses during wakefulness. The comparison is therefore not simply procedural: it determines whether findings reflect an intact functioning state or an anesthetically modified one.
Procedures typically combine controlled handling, restraint, and monitoring while the rat remains awake. Investigators select the physiological, behavioral, disease-related, or drug-response variable to record, apply the relevant intervention or observation, and then measure the response under conscious conditions. Careful control of these steps is important because the model’s value depends on relating the recorded outcome to the intended experimental question.
Reported applications include pharmacology, cardiovascular research, neuroscience, and toxicology. In pharmacology, measurements can show drug responses; cardiovascular studies can examine blood pressure and heart rate; neuroscience may benefit from observing behavior-related changes; and toxicology can assess physiological or functional effects. The common rationale is to evaluate effects without anesthesia obscuring the response.
Findings can improve preclinical interpretation by showing whether an intervention produces measurable changes in a functioning, awake organism. Investigators can compare outcomes across physiological, behavioral, disease-related, or drug-response measures and ask whether anesthesia might otherwise have hidden or altered the effect. This supports more informed assessment of treatment activity before conclusions are extended beyond the animal study.