Increased alcohol consumption in Urocortin 3 knockout mice is unaffected by chronic inflammatory pain

Monique L. Smith, Ju Li, Andrey E. Ryabinin

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Aims: Stress neurocircuitry may modulate the relationship between alcohol drinking and chronic pain. The corticotropin-releasing factor (CRF) system is crucial for regulation of stress responses. The current study aimed to elucidate the role of the endogenous CRF ligand Urocortin 3 (Ucn3) in the relationship between alcohol drinking behavior and chronic pain using a genetic approach. Methods: Ucn3 (KO) and wildtype (WT) littermates were subjected to a 24-h access drinking procedure prior to and following induction of chronic inflammatory pain. Results: Ucn3 KO mice displayed significantly increased ethanol intake and preference compared with WT across the time course. There were no long-term effects of chronic pain on alcohol drinking behavior, regardless of genotype, nor any evidence for alcohol-induced analgesia. Conclusion: The increased drinking in Ucn3 KO supports a role for this peptide in alcohol-related behavior. These data suggest the necessity for more research exploring the relationship between alcohol drinking, chronic pain and the CRF system in rodent models.

Original languageEnglish (US)
Pages (from-to)132-139
Number of pages8
JournalAlcohol and Alcoholism
Volume50
Issue number2
DOIs
StatePublished - Jan 1 2015

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Toxicology
  • Psychiatry and Mental health

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