Journal
PSYCHOPHARMACOLOGY
Volume 238, Issue 6, Pages 1531-1539Publisher
SPRINGER
DOI: 10.1007/s00213-021-05783-1
Keywords
Nanoliposome; Neuroprotection; Inflammatory cytokine; Brain ischemia; Post-stroke depression
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Funding
- Tehran University of Medical Sciences and Health Services grant [99-1-245-47989]
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Oral administration of phosphatidylserine liposomes (PSL) may improve post-stroke depression (PSD) by reducing inflammation and protecting the brain. The results demonstrated that PSL significantly reduced depressive symptoms and exerted a protective effect on the brain by reducing neuroinflammation in mice.
Objective To investigate the protective effect of phosphatidylserine liposomes (PSL) on post-stroke (ST) injuries such as neuroinflammation and depression in mice. Methods Brain ischemia was induced via the right unilateral common carotid artery occlusion model. Then, behavioral assessments including the forced swimming test (FST) and tail suspension test (TST) were used to evaluate the antidepressant-like effect of PSL. Moreover, inflammatory cytokines changes in the hippocampus including TNF-alpha and IL-10 levels as well as the number of survived neurons were evaluated in ST mice using immunohistochemistry (IHC). Results A significant reduction of the immobility time in both behavioral tests indicated the antidepressant activity of PSL. Moreover, the number of viable neurons increased significantly with PSL treatment, which was similar to control group, compared to the untreated ST group. IHC analysis of ST mice receiving PSL showed a significant reduction in TNF-alpha and IL-10 levels in the inflamed hippocampus of mice. Conclusion Oral PSL may improve post-stroke depression (PSD) through its anti-inflammatory properties.
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