Cited by 78Treatment of Major DepressionTryptophan and brain disordersNeurotransmitter Receptor Influence on Behavior

Escitalopram Targets Oxidative Stress, Caspase-3, BDNF and MeCP2 in the Hippocampus and Frontal Cortex of a Rat Model of Depression Induced by Chronic Unpredictable Mild Stress.

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Dionisie, Vlad, Ciobanu, Adela Magdalena, Toma, Vlad Alexandru, Manea, Mihnea Costin, Baldea, Ioana, Olteanu, Diana, Sevastre-Berghian, Alexandra, Clichici, Simona +3 more·2021·International Journal of Molecular Sciences

Abstract

In recent years, escitalopram (ESC) has been suggested to have different mechanisms of action beyond its well known selective serotonin reuptake inhibition. The aim of this study is to investigate the effects of escitalopram on oxidative stress, apoptosis, brain-derived neurotrophic factor (BDNF), Methyl-CpG-binding protein 2 (MeCP2), and oligodendrocytes number in the brain of chronic unpredictable mild stress-induced depressed rats. The animals were randomised in four groups (8 in each group): control, stress, stress + ESC 5 and stress + ESC 5/10. ESC was administered for 42 days in a fixed dose (5 mg/kg b.w.) or in an up-titration regimen (21 days ESC 5 mg/kg b.w. then 21 days ESC 10 mg/kg b.w.). Sucrose preference test (SPT) and elevated plus maze (EPM) were also performed. ESC improved the percentage of sucrose preference, locomotion and anxiety. ESC5/10 reduced the oxidative damage in the hippocampus and improved the antioxidant defence in the hippocampus and frontal lobe. ESC5/10 lowered caspase 3 activity in the hippocampus. Escitalopram had a modulatory effect on BDNF and the number of oligodendrocytes in the hippocampus and frontal lobe and also improved the MeCP2 expressions. The results confirm the multiple pathways implicated in the pathogenesis of depression and suggest that escitalopram exerts an antidepressant effect via different intricate mechanisms.

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Authors
Dionisie, V., Ciobanu, A. M., Toma, V. A., Manea, M. C., Baldea, I., Olteanu, D., Sevastre-Berghian, A., Clichici, S., Manea, M., Riga, S., & Filip, G. A.
Affiliations
  • Carol Davila University of Medicine and Pharmacy (RO)
  • Babeș-Bolyai University (RO)
  • Department of Physiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania
  • Iuliu Hațieganu University of Medicine and Pharmacy (RO)
  • Spitalul Clinic de Psihiatrie Alexandru Obregia (RO)
Corresponding author
  • Toma, Vlad Alexandru
  • Manea, Mihnea Costin
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2021-07-13
Volume
22
Issue
14
Pages
7483
ISSN
1422-0067 (ISSN-L)
OpenAlex
W3180558542
Cited by
78
References
139
Citations by year
2026: 21 · 2025: 16 · 2024: 12 · 2023: 9 · 2022: 19 · 2021: 1
FWCI
5.99
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
escitalopram, depression, chronic unpredictable mild stress, oxidative stress, caspase-3, apoptosis, brain-derived neurotrophic factor, MeCP2, oligodendrocytes, hippocampus, frontal cortex, antidepressant mechanism, selective serotonin reuptake inhibitors, anxiety, sucrose preference
MeSH terms
Animals, Behavior, Animal, Depression, Disease Models, Animal, Frontal Lobe, Hippocampus, Male, Stress, Psychological, Citalopram, Rats, Wistar, Oxidative Stress, Antidepressive Agents, Second-Generation, Brain-Derived Neurotrophic Factor, Rats, Methyl-CpG-Binding Protein 2, Caspase 3

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