Resolvin D2 attenuates chronic pain-induced depression-like behavior in mice.

ABSTRACT:

Aim

We previously demonstrated that intracerebroventricular injection of resolvin D2 (RvD2), a bioactive lipid mediator derived from docosahexaenoic acid, ameliorated depression-like behavior in lipopolysaccharide-induced and chronic mild stress-induced mouse models of depression. In the present study, we examined the antidepressant effect of RvD2 on chronic pain-induced depression-like behavior.

Methods

To prepare the neuropathic pain model, mice were subjected to surgery for unilateral spared nerve injury. Two weeks after surgery, the antidepressant effect of RvD2 was examined using the tail suspension test.

Results

Chronic pain significantly increased immobility time, and this depression-like behavior was attenuated by intracerebroventricular injection of RvD2 (10 

SUBMITTER: Suzuki H 

PROVIDER: S-EPMC8411310 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature