Effects of hyperbaric oxygen therapy on autistic behaviors and GRIN2B gene expression in valproic acid-exposed rats

Autism is a complex neurodevelopmental condition characterized by deficits in social interaction, communication, and restricted repetitive behaviors. Hyperbaric oxygen therapy (HBOT) has emerged as a potential treatment for autism, although its effects on behavior and gene expression are not well un...

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Published in:Frontiers in neuroscience Vol. 18; p. 1385189
Main Authors: Mohtaj Khorassani, Yalda, Moghimi, Ali, Khakzad, Mohammad Reza, Fereidoni, Masoud, Hassani, Delaram, Torbati Gah, Javad
Format: Journal Article
Language:English
Published: Switzerland Frontiers Media S.A 18-03-2024
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Summary:Autism is a complex neurodevelopmental condition characterized by deficits in social interaction, communication, and restricted repetitive behaviors. Hyperbaric oxygen therapy (HBOT) has emerged as a potential treatment for autism, although its effects on behavior and gene expression are not well understood. The gene, known for its involvement in encoding a glutamate receptor subunit crucial for neuron communication and associated with autism, was a focus of this study. Using a rat model induced by prenatal exposure to valproic acid, we examined the impact of HBOT on autism-like behaviors and gene expression. Male Wistar rats were categorized into four groups: control, VPA (valproic acid-exposed), VPA+HBOT [2 atmosphere absolute (ATA)], and VPA+HBOT (2.5 ATA). The rats underwent several behavioral tests to assess social behavior, anxiety, stereotype and exploratory behaviors, and learning. Following the behavioral tests, the HBOT groups received 15 sessions of HBOT at pressures of 2 and 2.5 (ATA), and their behaviors were re-evaluated. Subsequently, real-time PCR was employed to measure gene expression in the frontal lobe. Our results indicated that HBOT significantly increased social interaction and exploratory behaviors in VPA-exposed rats, alongside elevated gene expression in their frontal lobe. Our findings imply that HBOT might have a potential role in ameliorating autism-related behaviors in the VPA rat model of autism through potential modulation of gene expression. However, additional research is essential to fully comprehend the underlying mechanisms and refine the HBOT protocol for optimizing its effectiveness in improving autism-related symptoms.
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Omur Gulsum Deniz, Abant Izzet Baysal University, Türkiye
Edited by: Suleyman Kaplan, Ondokuz Mayıs University, Türkiye
Reviewed by: Selma Cirrik, Ordu University, Türkiye
ISSN:1662-4548
1662-453X
1662-453X
DOI:10.3389/fnins.2024.1385189