ArticleNeurotoxicity research2025
Sex-Specific Outcomes in a Rat Model of Early-Life Stress Due to Adverse Caregiving.
Article in Neurotoxicity research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- Early adversity alters neurodevelopmental milestones in male and female rat pups and motor cortex morphology and gait in juveniles.Neurobiology of stress · 2026Article
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Authors and funding
8 authors.
Funding
Abstract
Early parental care is critical for the development of cortico-limbic circuits regulating stress responses and emotional well-being. Conversely, infant maltreatment can increase susceptibility to mood disorders-such as anxiety and depression-and impair stress-coping abilities. Here, we employed the Scarcity-Adversity Model (SAM) in rats, limiting nesting resources from postnatal days 8-12, to examine its effects on maternal and adult offspring behavior. SAM-exposed mothers exhibited fragmented care and increased violence towards pups. By postpartum day (PPD) 13, maternal fecal corticosterone metabolites (FCM) were elevated, indicating heightened stress. At weaning, SAM dams also showed increased anxiety-like behavior in the Elevated Plus Maze (EPM), suggesting significant emotional alterations. In adulthood, SAM-exposed offspring underwent anxiogenic tests. Both male and female SAM offspring showed increased latency to enter open arms and reduced risk-assessment in the EPM, though females displayed anxiolytic-like behavior in the Light-Dark Box. Male SAM rats had reduced locomotion in the Open Field, earlier onset and increased immobility in the Forced Swim, and increased latency to groom in the Sucrose Splash. When exposed to acute stress, male SAM rats had lower FCM levels, consistent with their passive stress reactivity. These findings confirm SAM induces long-lasting, sex-specific changes in risk-taking, novelty responsiveness, and stress reactions, underscoring the importance of early nurturing in promoting well-being and reducing psychopathological risk.
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Registered trials
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