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Protective Effects of Spirulina platensis, Voluntary Exercise and Environmental Interventions Against Adolescent Stress-Induced Anxiety and Depressive-Like Symptoms, Oxidative Stress and Alterations of BDNF and 5HT-3 Receptors of the Prefrontal Cortex in Female Rats

Authors Moradi-Kor N, Dadkhah M, Ghanbari A, Rashidipour H, Bandegi AR, Barati M, Kokhaei P, Rashidy-Pour A

Received 30 January 2020

Accepted for publication 13 July 2020

Published 24 July 2020 Volume 2020:16 Pages 1777—1794

DOI https://doi.org/10.2147/NDT.S247599

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Roger Pinder


Nasroallah Moradi-Kor,1,2 Masoomeh Dadkhah,3 Ali Ghanbari,2 Hadi Rashidipour,4 Ahmad Reza Bandegi,5 Mehdi Barati,6 Parviz Kokhaei,7 Ali Rashidy-Pour2,8

1Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran; 2Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran; 3Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran; 4School of Veterinary Medicine, Islamic Azad University, Garmsar, Iran; 5Laboratory of Endocrine Research, Research Center of Physiology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran; 6Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; 7Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran; 8Department of Physiology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran

Correspondence: Ali Rashidy-Pour Laboratory of Learning and Memory
Research Center of Physiology, Semnan, University of Medical Sciences, Semnan 15131-38111, Iran
Tel +98-9121140221
Email Rashidy-Pour@semums.ac.ir

Background and Purpose: Ample evidence indicates that chronic adolescence stress is associated with an increased risk of developing neuropsychiatric disorders in adulthood. Given the importance of the effective therapeutic ways to overcome adolescent stress-related deficits, the present study investigated the effects of Spirulina platensis (SP), environmental enrichment (EE), and voluntary exercise (EX) and their combination on anxiety or depression-like behaviors, oxidative stress, and alterations of BDNF and 5HT-3 receptors in the prefrontal cortex (PFC) induced by adolescent stress in adult female rats.
Methods: During the adolescent period (PNDs30-40), rats were subjected to restraint stress. Then, the animals were subjected to SP treatment (200 mg/kg/day), EX, EE, and the combined treatments (SP+EX, and SP+EE) for 15 days between PNDs41-55. Subsequently, anxiety or depression-like behaviors, BDNF levels, oxidative stress markers and mRNA expression of BDNF and 5HT3 in the PFC were assessed.
Results: Stressed rats demonstrated enhanced anxiety levels and depression-like behaviors in adulthood. Regarding the oxidative stress markers, stressed rats exhibited significantly higher levels of malondialdehyde, a lipid peroxidation product, higher activities of antioxidant enzymes (glutathione peroxidase and superoxide dismutase) and significantly lower total antioxidant reactivity capacity in the PFC. Additionally, adolescent stress significantly increased 5HT3 receptor mRNA expression and decreased BDNF content and its mRNA expression in the PFC. Treatments with SP, EX, EE, and the combined interventions alleviated these deficits.
Conclusion: Our findings indicate that appropriate interventions during the adolescent period can protect against adolescent stress-induced behavioral, and biochemical defects and oxidative stress damage in adulthood.

Keywords: adolescent stress, anxiety, depression, environmental enrichment, physical activity spirulina, oxidative stress

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