ArticleAddiction & health2024
The Effect of Valproic Acid Administration on Learning, Social Interaction, and Depression Induced by Withdrawal Syndrome in Morphine-dependent Mice.
Article in Addiction & health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Effects of zinc oxide nano particles on morphine withdrawal syndrome in mice (insights to the postpartum depression, reflexive motor behaviors and antioxidant activity).Scientific reports · 2026Article
- Antioxidant Effects of Vitamin E and L-Carnitine on Hippocampal Histology, Epigenetics, and Cognition in Morphine-Exposed Mice.Molecular neurobiology · 2026Article
- Behavior and Musculoskeletal Effects of Chronic D-Galactose Treatment in Mice: Role of Heme Oxygenase-1.Biomolecules · 2026Article
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Authors and funding
4 authors.
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Abstract
Background: Opioids can lead to mood disorders, anxiety, depression, and cognitive impairment. Valproic acid (VPA) has neuroprotective effects that can prevent neural degeneration. This study aims to examine the impact of VPA on learning, social interaction, and depression in mice dependent on morphine. Methods: Subjects were divided into four groups and received injections of saline, VPA, morphine, or a combination of VPA and morphine for eight days. Behavioral tests were conducted on day 8, and then administration of VPA and morphine was stopped, leading to spontaneous withdrawal syndrome. Behavioral tests were repeated on day 11, and histological analysis was performed on the hippocampus. Findings: The preference index (PI%) decreased in the novel object recognition test in the VPA and morphine sulfate (MOR) groups compared to the control (CTL) group in the chronic phase. The concomitant administration of VPA and morphine caused an increase in social interaction criteria in both the chronic and withdrawal phases. The decrease in immobility time in the VPA and MOR+VPA groups compared to the CTL group in the withdrawal phase was not statistically significant in the tail suspension test (TST). In Nissl staining, the combination of MOR+VPA led to a significant decrease in the DC/All cell ratio compared to the individual MOR and VPA groups ( Conclusion: VPA may improve social relationships and depression indices during morphine withdrawal. VPA may potentially mitigate the cellular changes in the CA1 of the hippocampus induced by morphine.
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