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Open AccessArticle

Treadmill Exercise Buffers Behavioral Alterations Related to Ethanol Binge-Drinking in Adolescent Mice

1
Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29071 Málaga, Spain
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Instituto de Investigación Biomédica de Málaga (IBIMA), 29010 Málaga, Spain
3
Departamento de Fisiología Humana, Facultad de Medicina, Universidad de Málaga, 29071 Málaga, Spain
*
Authors to whom correspondence should be addressed.
Brain Sci. 2020, 10(9), 576; https://doi.org/10.3390/brainsci10090576
Received: 21 July 2020 / Revised: 11 August 2020 / Accepted: 19 August 2020 / Published: 20 August 2020
(This article belongs to the Special Issue Longitudinal Assessment of Alcohol Exposure on Brain and Behavior)
The binge-drinking pattern of EtOH consumption, which is frequently observed in adolescents, is known to induce several neurobehavioral alterations, but protection strategies against these impairments remain scarcely explored. We aimed to study the protective role of treadmill physical exercise on the deficits caused after repeated cycles of binge-like EtOH exposure in the cognition, motivation, exploration, and emotion of C57BL/6J mice from adolescence to adulthood. Animals were divided into four groups: control group, exercised group, EtOH group, and exercised + EtOH group (20% in tap water). The exercise was performed for 20 min, 5 days/week at 20 cm/s. Then, animals were submitted to several behavioral tasks. Compared to binge-drinking mice, the exercised + EtOH group exhibited diminished anxiolytic-related behaviors in the elevated plus-maze, enhanced exploratory activity in the open field, reduced preference for alcohol odor when another rewarding stimulus was present (social stimulus) and lower latency to start self-cleaning behaviors in the sucrose splash test. In contrast, other measurements such as habituation learning and working memory were not improved by exercise. Besides, exercise was not able to reduce alcohol consumption across the weeks. In conclusion, physical activity during adolescence and early adulthood could buffer certain neurobehavioral alterations associated with binge-drinking, despite not reducing the quantity of consumed alcohol. View Full-Text
Keywords: adolescence; aerobic exercise; alcohol; behavior; drinking in the dark; mice adolescence; aerobic exercise; alcohol; behavior; drinking in the dark; mice
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Sampedro-Piquero, P.; Millón, C.; Moreno-Fernández, R.D.; García-Fernández, M.; Diaz-Cabiale, Z.; Santin, L.J. Treadmill Exercise Buffers Behavioral Alterations Related to Ethanol Binge-Drinking in Adolescent Mice. Brain Sci. 2020, 10, 576.

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