Alcohol Vapor Exposure
Alcohol Vapor Exposure - Related Videos
05:12
Chronic Intermittent Ethanol Vapor Exposure Paired with Two-Bottle Choice to Model Alcohol Use Disorder
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Cited by 6 •
2023
Presented here is a protocol for the 2BC/CIE model of alcohol dependence in mice to study alcohol use disorder.
10:44
Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
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Cited by 4 •
2017
This protocol describes a method for exposing rodents to electronic cigarette vapor (E-vapor) and cigarette smoke. Exposure chambers are constructed by modifying anesthesia chambers with an automated pumping system that delivers E-vapor or cigarette smoke to rodents. This system can easily be modified to accommodate many experimental endpoints.
10:07
Assessing Teratogenic Changes in a Zebrafish Model of Fetal Alcohol Exposure
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Cited by 34 •
2012
In order to understand the molecular mechanisms of the ethanol-induced developmental damage, we have developed a zebrafish model of ethanol exposure and are exploring the physical, cellular, and genetic alterations that occur after ethanol exposure1. We then seek to find potential interventions and rapidly test them in this animal model.
11:01
Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats
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Cited by 20 •
2014
The goal of the protocol presented here is to describe procedures to expose rats to moderate levels of alcohol during prenatal brain development and to quantify resulting alterations in social behavior during adulthood.
01:18
Vaporization
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2019
The physical form of a substance changes by changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. For vaporization to occur, kinetic energy must be greater than the intermolecular forces that keep molecules bonded. The amount of energy needed to vaporize a quantity of liquid at a given pressure and a constant temperature is called the heat of vaporization. When...
FAQs
Maintaining sustained blood alcohol levels gives investigators a consistent physiological context for examining alcohol-related adaptations. Instead of focusing only on a brief response, the model supports observation of changes associated with tolerance, dependence, and withdrawal. This consistency is useful when comparing behavioral outcomes or changes in neural circuits across experimental conditions.
The central signaling effect is an imbalance between inhibition and excitation. Ethanol enhances inhibitory GABAergic activity, which can change how strongly neurons are suppressed, while disrupting excitatory glutamatergic transmission alters signaling in the opposite functional direction. Examining both systems helps connect alcohol exposure with changes in neuronal communication and related behavior.
These outcomes represent different questions about adaptation to alcohol. Tolerance concerns changes in responsiveness, dependence concerns adaptations associated with sustained exposure, and withdrawal concerns effects that emerge when alcohol is no longer present. Controlled vapor paradigms provide a sustained-exposure framework for examining these related phenomena and separating immediate signaling effects from longer-lasting adaptations.
Its value comes from linking controlled ethanol exposure with changes in both behavior and neural circuits. Because inhaled ethanol reaches the bloodstream and brain, investigators can examine how altered GABAergic and glutamatergic signaling relates to circuit-level adaptations. This connection helps neuroscience studies move from molecular signaling changes toward mechanisms relevant to alcohol use disorders.
The defining procedural requirement is controlled delivery of ethanol vapor so that exposure produces sustained blood alcohol levels in the animal model. Researchers then examine outcomes such as tolerance, dependence, withdrawal, behavior, or neural-circuit changes. The exposure conditions and outcome measures must remain sufficiently controlled to connect observed effects with alcohol treatment.
Researchers can evaluate several outcome categories within the same experimental framework, including tolerance, dependence, withdrawal, behavior, and alcohol-related changes in neural circuits. These measurements provide complementary information: behavioral findings show functional consequences, while circuit-level findings help explain the nervous-system adaptations that may produce those consequences.
Alcohol vapor exposure provides animal models for examining mechanisms that underlie alcohol use disorders. By producing sustained alcohol exposure and enabling analysis of behavioral and neural adaptations, the approach helps investigators study how dependence-related changes develop. Those models also support evaluation of potential treatments by testing whether an intervention affects alcohol-related outcomes or underlying circuit changes.