August 21, 2025The International Journal of NeuropsychopharmacologyOpen Access

Increased Sensitivity of Central Serotonergic Neurons to Corticosteroids Following Maternal Immune Activation: Significance for Mood Disorders

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Dexamethasone significantly inhibited the activity of 5-HT neurons in the offspring of maternal immune activation rats.
Male offspring showed a maximum inhibition of 2% of baseline activity, while females showed 25% after 5 mg/kg dexamethasone.
Electrophysiological experiments assessed neuronal firing in the dorsal raphe nucleus, comparing offspring from control and MIA dams.
Findings indicate that maternal immune activation enhances the sensitivity of 5-HT neurons to glucocorticoids, potentially impacting mood disorders.

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Implication

This analysis reveals how maternal immune activation amplifies the impact of glucocorticoids on 5-HT neuronal excitability, suggesting implications for anxiety and depression.

Cite This Study

Dremencov et al. (2025) studied this question.

synapsesocial.com/papers/68c23704b210217d6477659d https://doi.org/10.1093/ijnp/pyaf052.126

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Implication

This analysis reveals how maternal immune activation amplifies the impact of glucocorticoids on 5-HT neuronal excitability, suggesting implications for anxiety and depression.

Increased Sensitivity of Central Serotonergic Neurons to Corticosteroids Following Maternal Immune Activation: Significance for Mood Disorders

Key Points

Discussion

Implication

Cite This Study

Increased Sensitivity of Central Serotonergic Neurons to Corticosteroids Following Maternal Immune Activation: Significance for Mood Disorders

Key Points

Discussion

Implication

Cite This Study

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