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Effects of selective serotonin reuptake inhibitors on DNA damage in patients with depression

Lookup NU author(s): Dr Paul Jowsey


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BACKGROUND: The relationship between depression and increased oxidative stress is well known. DNA damage by oxidation factors is an important cause of the aging process in psychiatric disorders.AIMS: Owing to the scarcity of human studies and high inconsistencies in studies of the effects of antidepressants on DNA damage, the current study was undertaken to investigate the effects of depression and its treatment on DNA damage.METHODS: In a 15-week open-label study of citalopram (n = 25) and sertraline (n = 20), levels of DNA damage were measured by comet assay, proinflammatory (Interlukin-6 (IL-6)) and oxidative DNA damage (8-hydroxy-2'-deoxyguanosine (8-OHdG)) markers by ELISA, and gene expression of base excision repair enzymes (8-oxoguanine glycosylase (OGG1) and poly (ADP)-ribose polymerase-1 (PARP1)) by quantitative real-time polymerase chain reaction in healthy control patients (n = 14), with depression at the baseline and the same patients after week 15.RESULTS: DNA damage, 8-OHdG, IL-6 and expression of PARP1 were elevated in patients with depression compared with the healthy controls (p < 0.001). Selective serotonin reuptake inhibitor (SSRI) therapy could significantly reduce the depression score (p < 0.01), DNA damage (p < 0.001), as well as 8-OHdG and IL-6 (p < 0.0001). Nevertheless, the expression of PARP1 and OGG1 showed no significant changes after treatment.CONCLUSIONS: This is the first study on the effect of SSRIs on the DNA damage and some of the repair enzymes in depression. Based on the results, depression can cause increased DNA damage. This damage is followed by activation of compensatory mechanisms whereby the expression of DNA damage repair enzymes is elevated. Finally, the treatment of psychiatric disorder by antidepressants can lower the level of oxidative DNA damage.

Publication metadata

Author(s): Ahmadimanesh M, Abbaszadegan MR, Morshedi Rad D, Moallem SA, Mohammadpour AH, Ghahremani MH, Farid Hosseini F, Behdani F, Akhondpour Manteghi A, Jowsey P, Shabani Behbahani F, Moallem SMH, Etemad L

Publication type: Article

Publication status: Published

Journal: Journal of Psychopharmacology

Year: 2019

Volume: 33

Issue: 11

Pages: 1364-1376

Print publication date: 01/11/2019

Online publication date: 26/09/2019

Acceptance date: 26/09/2019

ISSN (print): 0269-8811

ISSN (electronic): 1461-7285

Publisher: Sage Publications Inc.


DOI: 10.1177/0269881119874461

PubMed id: 31556787


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