Prenatal Stress Produces Sexually Dimorphic and Regionally Specific Changes in Gene Expression in Hippocampus and Frontal Cortex of Developing Rat Offspring
Why this work is in the frame
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Bibliographic record
Abstract
Prenatal stress has been known to induce structural changes in the brain and lead to negative psychological well-being. To further understanding of the mechanisms that underlie these effects, whole genome microarray analysis was used to analyze gene expression changes in the developing brain. Epigenetic changes in the hippocampus and frontal cortex of offspring exposed to stress during gestation were investigated. Biological process ontology and pathway analysis was used to increase understanding of the changes produced in response to prenatal stress. The study identified over 700 genes in the frontal cortex and hippocampus that are differentially expressed following prenatal stress. The epigenetic changes demonstrate sex-dependent and region-specific profiles, exhibiting very little overlap between sexes and brain area. Frontal cortex changes were largely related to neurotransmitter function, whereas hippocampal changes were more prominent in females and concentrated around growth factors. These findings have important implications for generalized intervention strategies using a single methodology for all individuals.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it