Effects of transcranial photobiomodulation and methylene blue on biochemical and behavioral profiles in mice stress model

Reza Meynaghizadeh-Zargar, Saeed Sadigh-Eteghad, Gisou Mohaddes, Farzad Salehpour, Seyed Hossein Rasta (Corresponding Author)

Research output: Contribution to journalArticle

Abstract

The effectiveness of transcranial photobiomodulation (tPBM) and methylene Blue (MB) in treating learning and memory impairments is previously reported. In this study, we investigated the effect of tPBM and MB in combination or alone on unpredictable chronic mild stress (UCMS)–induced learning and memory impairments in mice. Fifty-five male BALB/c mice were randomly allocated to five groups: control, laser sham + normal saline (NS), tPBM + NS, laser sham + MB, and tPBM + MB. All groups except the control underwent UCMS and were treated simultaneously for 4 weeks. Elevated plus maze (EPM) was used to evaluate anxiety-like behaviors. Novel object recognition (NOR) test and Barnes maze tests were used to evaluate learning and memory function. The serum cortisol and brain nitric oxide (NO), reactive oxygen species (ROS), total antioxidant capacity (TAC), glutathione peroxidase (GPx), and superoxide dismutase (SOD) levels were measured by spectrophotometric methods. Behavioral tests revealed that UCMS impaired learning and memory, and treatment with PBM, MB, and their combination reversed these impairments. Levels of NO, ROS, SOD activity in brain, and serum cortisol levels significantly increased while brain GPx activity and total antioxidant capacity significantly decreased in the sham + NS animals when compared with the controls. A significant improvement was observed in treatment groups due to reversion of the aforementioned molecular analysis caused by UCMS when it was compared with control levels. Both tPBM and MB in combination or alone have significant therapeutic effects on learning and memory impairments in UCMS-received animals.

Original languageEnglish
JournalLasers in Medical Science
Early online date1 Aug 2019
DOIs
Publication statusE-pub ahead of print - 1 Aug 2019

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Methylene Blue
Learning
Glutathione Peroxidase
Superoxide Dismutase
Hydrocortisone
Reactive Oxygen Species
Nitric Oxide
Brain
Lasers
Antioxidants
Control Groups
Therapeutic Uses
Serum
Anxiety

Keywords

  • Chronic mild stress
  • Photobiomodulation
  • Methylene blue
  • Learning and memory
  • Anxiety
  • Near-infrared laser

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Effects of transcranial photobiomodulation and methylene blue on biochemical and behavioral profiles in mice stress model. / Meynaghizadeh-Zargar, Reza ; Sadigh-Eteghad, Saeed; Mohaddes, Gisou ; Salehpour, Farzad ; Rasta, Seyed Hossein (Corresponding Author).

In: Lasers in Medical Science, 01.08.2019.

Research output: Contribution to journalArticle

Meynaghizadeh-Zargar, Reza ; Sadigh-Eteghad, Saeed ; Mohaddes, Gisou ; Salehpour, Farzad ; Rasta, Seyed Hossein. / Effects of transcranial photobiomodulation and methylene blue on biochemical and behavioral profiles in mice stress model. In: Lasers in Medical Science. 2019.
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