Three Weeks of Binge Alcohol Drinking Generates Increased Alcohol Front-Loading and Robust Compulsive-Like Alcohol Drinking in Male and Female C57BL/6J Mice. 2021

Meredith R Bauer, and Megan M McVey, and Stephen L Boehm
Department of Psychology, Indiana Alcohol Research Center, Indiana University - Purdue University Indianapolis, Indianapolis, IN, USA.

Current models of compulsive-like quinine-adulterated alcohol (QuA) drinking in mice, if improved, could be more useful for uncovering the neural mechanisms of compulsive-like alcohol drinking. The purpose of these experiments was to further characterize and improve the validity of a model of compulsive-like QuA drinking in C57BL/6J mice. We sought to determine whether compulsive-like alcohol drinking could be achieved following 2 or 3 weeks of Drinking-in-the-Dark (DID), whether it provides evidence for a robust model of compulsive-like alcohol drinking by inclusion of a water control group and use of a highly concentrated QuA solution, whether repeated QuA exposures alter compulsive-like drinking, and whether there are sex differences in compulsive-like alcohol drinking. Male and Female C57BL/6J mice were allowed free access to either 20% alcohol or tap water for 2 hours each day for approximately 3 weeks. After 2 or 3 weeks, the mice were given QuA (500 μM) and the effect of repeated QuA drinking sessions on compulsive-like alcohol drinking was assessed. 3-minute front-loading, 2 hour binge-drinking, and blood alcohol concentrations were determined. Compulsive-like QuA drinking was achieved after 3 weeks, but not 2 weeks, of daily alcohol access as determined by alcohol history mice consuming significantly more QuA than water history mice and drinking statistically nondifferent amounts of QuA than nonadulterated alcohol at baseline. Thirty-minute front-loading of QuA revealed that alcohol history mice front-loaded significantly more QuA than water history mice, but still found the QuA solution aversive. Repeated QuA exposures did not alter these patterns, compulsive-like drinking did not differ by sex, and BACs for QuA drinking were at the level of a binge. These data suggest that compulsive-like QuA drinking can be robustly achieved following 3 weeks of DID and male and female C57BL/6J mice do not differ in compulsive-like alcohol drinking.

UI MeSH Term Description Entries
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D003192 Compulsive Behavior The behavior of performing an act persistently and repetitively without it leading to reward or pleasure. The act is usually a small, circumscribed behavior, almost ritualistic, yet not pathologically disturbing. Examples of compulsive behavior include twirling of hair, checking something constantly, not wanting pennies in change, straightening tilted pictures, etc. Behavior, Compulsive,Behaviors, Compulsive,Compulsive Behaviors
D005260 Female Females
D000431 Ethanol A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES. Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D063425 Binge Drinking Drinking an excessive amount of ALCOHOLIC BEVERAGES in a short period of time. Binge Alcohol Consumption,Alcohol Consumption, Binge,Drinking, Binge

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