Abstract Title:

Geraniol produces antidepressant-like effects in a chronic unpredictable mild stress mice model.

Abstract Source:

Physiol Behav. 2015 Oct 8 ;152(Pt A):264-271. Epub 2015 Oct 8. PMID: 26454213

Abstract Author(s):

Xue-Yang Deng, Jin-Song Xue, Hong-Yan Li, Zhan-Qiang Ma, Qiang Fu, Rong Qu, Shi-Ping Ma

Article Affiliation:

Xue-Yang Deng


Geraniol (GE), which has neuroprotection and anti-inflammation activities, is mostly abundant in the essential oils of rose, ginger, lemon, orange, lavender etc. However, its antidepressant-like effect has not been reported before. The present study was designed to investigate whether GE confers an antidepressant effect in mice exposed to a chronic unpredictable mild stress (CUMS) model of depression and to explore its possible mechanisms. The results showed that GE treatments for 3weeks significantly alleviated the depression-related behaviors of CUMS-exposed mice, as indicated by restored decreased sucrose preference and shortened immobile time in both the forced swimming tests (FST) and tail suspension tests (TST). And these ameliorative effects of GE treatment were involved with regulating CUMS-induced pro-inflammatory cytokine interleukin-1 beta (IL-1β) related neuro-inflammation. We further found that GE treatment reversed CUMS-induced IL-1β elevation, possibly by inhibiting nuclear factor kappa B (NF-κB) pathway activation and regulating nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome expression. Taken together, our findings suggested that GE exerted a potential antidepressant-like effect in CUMS mice model of depression, which may provide an insight into the potential of GE in therapeutic implications for depression.

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