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Journal article : Review

Statins in depression: an evidence-based overview of mechanisms and clinical studies

Abstract:

Background: Depression is a leading cause of disability, burdened by high levels of non-response to conventional antidepressants. Novel therapeutic strategies targeting non-monoaminergic pathways are sorely needed. The widely available and safe statins have several putative mechanisms of action, especially anti-inflammatory, which make them ideal candidates for repurposing in the treatment of depression. A large number of articles has been published on this topic. The aim of this study is to assess this literature according to evidence-based medicine principles to inform clinical practise and research.

Methods: We performed a systematic review of the electronic databases MEDLINE, CENTRAL, Web of Science, CINAHL, and ClinicalTrials.gov, and an unstructured Google Scholar and manual search, until the 9th of April 2021, for all types of clinical studies assessing the effects of statins in depression.

Results: Seventy-two studies were retrieved that investigated the effects of statins on the risk of developing depression or on depressive symptoms in both depressed and non-depressed populations. Fifteen studies specifically addressed the effects of statins on inflammatory-related symptoms of anhedonia, psychomotor retardation, anxiety, and sleep disturbances in depression. Most studies suggested a positive effect of statins on the occurrence and severity of depression, with fewer studies showing no effect, while a minority indicated some negative effects.

Limitations: We provide a narrative report on all the included studies but did not perform any quantitative analysis, which limits the strength of our conclusions.

Conclusions: Robust evidence indicates that statins are unlikely to lead to depressive symptoms in the general population. Promising data suggest a potential role for statins in the treatment of depression. Further clinical studies are needed, especially in specific subgroups of patients identified by pre-treatment assessments of inflammatory and lipid profiles.

Publication status:
Published
Peer review status:
Peer reviewed

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Files:
Publisher copy:
10.3389/fpsyt.2021.702617

Authors


More by this author
Institution:
University of Oxford
Division:
MSD
Sub department:
Psychiatry
Oxford college:
Brasenose College
Role:
Author
ORCID:
0000-0001-5984-8696


Publisher:
Frontiers Media
Journal:
Frontiers in Psychiatry More from this journal
Volume:
12
Article number:
702617
Publication date:
2021-07-27
Acceptance date:
2021-06-29
DOI:
EISSN:
1664-0640


Language:
English
Keywords:
Subtype:
Review
Pubs id:
1184060
Local pid:
pubs:1184060
Deposit date:
2021-06-29

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