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    Reduced alcohol-seeking in male offspring of sires exposed to alcohol self-administration followed by punishment-imposed abstinence

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    Author
    Campbell, EJ; Flanagan, JPM; Marchant, NJ; Lawrence, AJ
    Date
    2018-04-01
    Source Title
    Pharmacology Research and Perspectives
    Publisher
    JOHN WILEY & SONS LTD
    University of Melbourne Author/s
    Lawrence, Andrew; Marchant, Nathan; Campbell, Erin Jane
    Affiliation
    Florey Department of Neuroscience and Mental Health
    Metadata
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    Document Type
    Journal Article
    Citations
    Campbell, E. J., Flanagan, J. P. M., Marchant, N. J. & Lawrence, A. J. (2018). Reduced alcohol-seeking in male offspring of sires exposed to alcohol self-administration followed by punishment-imposed abstinence. PHARMACOLOGY RESEARCH & PERSPECTIVES, 6 (2), https://doi.org/10.1002/prp2.384.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/253210
    DOI
    10.1002/prp2.384
    Abstract
    Emerging evidence has demonstrated that paternal alcohol use can modify the behavior of offspring, particularly male offspring. However, preclinical studies to date have not used voluntary self-administration of alcohol to examine alcohol-related behaviors in offspring. Here, we tested the hypothesis that paternal alcohol self-administration followed by punishment-imposed abstinence alters alcohol consumption and seeking in male offspring. Male inbred alcohol preferring iP rats were trained to self-administer alcohol in one context followed by punishment-imposed suppression of alcohol-seeking in a different context using contingent footshock. Following this, all rats were bred with alcohol naïve female iP rats. F1 offspring were then trained to self-administer alcohol in an identical operant paradigm as sires. Alcohol intake and self-administration behaviors of alcohol-sired offspring were compared to control-sired offspring whose fathers had not been exposed to the alcohol operant conditioning experience. We found that paternal alcohol self-administration reduced context-induced relapse to alcohol-seeking in male offspring. These findings indicate that voluntary paternal alcohol experience, operant conditioning, and punishment can result in intergenerational changes in offspring behavior, and that this effect may protect against the vulnerability to relapse after alcohol use. We also noted reduced alcohol responding in the punishment-associated context in alcohol-sired offspring, suggesting altered perception of punishment sensitivity or the anxiogenic response to footshock. Collectively, these findings provide evidence that paternal alcohol abuse can impact alcohol-related behaviors in male offspring.

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