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Updated: May 28, 2026
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Using Chronic Social Stress to Model Postpartum Depression in Lactating Rodents
Published on: June 10, 2013
Perinatal antidepressant exposure alters cortical network function in rodents
Kimberly L Simpson1, Kristin J Weaver, Etienne de Villers-Sidani
1Department of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center, Jackson, MS 39216, USA.
Summary
Serotonin (5-HT) manipulation during early development, including from SSRIs like citalopram, disrupts brain wiring and behavior. This highlights the need to study SSRI effects on fetal development, especially in conditions like autism.
Area of Science:
- Neuroscience
- Developmental Biology
- Pharmacology
Background:
- Serotonin (5-HT) is crucial for early brain development.
- Perinatal exposure to selective serotonin reuptuptake inhibitors (SSRIs) may impact neural network function.
- Mechanisms underlying SSRI-induced disruptions in neuronal connections are not fully understood.
Purpose of the Study:
- To investigate the effects of prenatal and postnatal SSRI exposure on cortical wiring.
- To identify the neurobiological mechanisms involved in SSRI-induced developmental disruptions.
Main Methods:
- Utilized in vitro and in vivo models to study citalopram exposure during early development.
- Assessed chemoarchitectural and electrophysiological brain features.
- Observed behavioral changes in drug-exposed rat pups.
Main Results:
- SSRI exposure altered chemoarchitecture and electrophysiology.
- Observed changes in raphe and callosal connections, sensory processing, and myelin sheath formation.
- Drug-exposed pups displayed neophobia and disrupted play behavior.
Conclusions:
- 5-HT homeostasis is essential for normal brain maturation.
- Fetal/infant SSRI exposure warrants further investigation in humans, particularly concerning developmental disorders like autism.
