Dr. Saeed Sadigh-Eteghad Profile

Dr. Saeed Sadigh-Eteghad

at Tabriz Univ of Medical Sciences

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Proceedings Article | 8 February 2017 Paper

A comparison between antidepressant effects of transcranial near-infrared laser and citalopram in a rat model of depression

Farzad Salehpour, Seyed Hossein Rasta, Gisou Mohaddes, Saeed Sadigh-Eteghad, Sima Salarirad

Proceedings Volume 10050, 100500G (2017) https://doi.org/10.1117/12.2251598

KEYWORDS: Laser therapeutics, Pulsed laser operation, Animal model studies, Curium, Near infrared, Laser irradiation, Brain, Psychiatry, Scanning electron microscopy, Infrared lasers

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Depression is a common psychiatric disorder that its prevalence has been reported to be 16% among adults. In recent years, transcranial near-infrared laser therapy (NILT) has gained considerable attention as a novel non-pharmaceutical method for depression. The present study was designed to compare the efficacy of two different treatment strategies in a rat model of depression. Forty male Wistar rats (180-200 g) divided into 4 groups: control, depressive, depressive-NILT, and depressive-Citalopram. All animals excepted control group was exposed to chronic mild stress (CMS) for 4 weeks. Rats in laser group received 10-Hz pulsed NILT (810 nm, energy density 1.2 J/cm² per session) transcranially for a total of 12 sessions over a three-week period. Citalopram (10 mg/kg, Intraperitoneal) was administered for 21 consecutive days. Depressive-like behavior was tested in the forced swimming test (FST) model. Serum cortisol levels were also determined. The results of FST showed an increase in swimming and decrease in immobility period, for both NILT and Citalopram groups compared to the stress group. There was also no significant difference between the experimental groups in climbing behavior. The induction of CMS significantly increased serum cortisol levels and treatments with NILT and Citalopram decreased it. Our findings showed that NILT will be more beneficial to improve the depressive-like behaviors in the rat. Our data also showed that transcranial NILT was as effective as Citalopram in the treatment of depression. Therefore, these pieces of evidence may help improve NILT as an alternative non-pharmaceutical method for depression therapy.

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