4.1 Article

Social interaction reward in rats has anti-stress effects

期刊

ADDICTION BIOLOGY
卷 26, 期 1, 页码 -

出版社

WILEY
DOI: 10.1111/adb.12878

关键词

cocaine; corticotropin-releasing factor; p38 MAPK; reward; social interaction; stress

资金

  1. Austrian Science Fund (FWF) [M2486-B30, P27852-B21, T758-BBL]
  2. Austrian Science Fund (FWF) [P28146] Funding Source: Austrian Science Fund (FWF)

向作者/读者索取更多资源

Social interaction can be beneficial in preventing drug abuse by reducing stress levels. The study found that social interaction decreased stress levels and reversed the preference for cocaine induced by stress. This suggests that social interaction could be an important component in the treatment of substance use disorders.
Social interaction in an alternative context can be beneficial against drugs of abuse. Stress is known to be a risk factor that can exacerbate the effects of addictive drugs. In this study, we investigated whether the positive effects of social interaction are mediated through a decrease in stress levels. For that purpose, rats were trained to express cocaine or social interaction conditioned place preference (CPP). Behavioural, hormonal, and molecular stress markers were evaluated. We found that social CPP decreased the percentage of incorrect transitions of grooming and corticosterone to the level of naive untreated rats. In addition, corticotropin-releasing factor (CRF) was increased in the bed nucleus of stria terminalis after cocaine CPP. In order to study the modulation of social CPP by the CRF system, rats received intracerebroventricular CRF or alpha-helical CRF, a nonselective antagonist of CRF receptors. The subsequent effects on CPP to cocaine or social interaction were observed. CRF injections increased cocaine CPP, whereas alpha-helical CRF injections decreased cocaine CPP. However, alpha-helical CRF injections potentiated social CPP. When social interaction was made available in an alternative context, CRF-induced increase of cocaine preference was reversed completely to the level of rats receiving cocaine paired with alpha-helical CRF. This reversal of cocaine preference was also paralleled by a reversal in CRF-induced increase of p38 MAPK expression in the nucleus accumbens shell. These findings suggest that social interaction could contribute as a valuable component in treatment of substance use disorders by reducing stress levels.

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