Maternal behavior regulates long‐term hippocampal expression of BAX and apoptosis in the offspring
Why this work is in the frame
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Bibliographic record
Abstract
Naturally occurring variations in maternal care influence hippocampal development in the rat. In the present study we found that variations in maternal licking/grooming (LG) during the first week of life are associated with altered hippocampal expression of BAX (group-1 tumor necrosis factor family mediated cell death effector) in 90-day-old male offspring. BAX-like immunoreactivity on western blots is significantly increased in the adult offspring of low-level LG mothers. There is no effect of maternal care on levels of either B-cell lymphoma-2 (BCL-2) (group-II mitochondria mediated cell death suppressor) or BAD (group-III endoplasmic reticulum mediated cell death effector). The most striking biochemical event in apoptosis is DNA fragmentation. Terminal deoxynucleotidyl transerferase (Tdt)-mediated dUTP-biotin nick-end labeling (TUNEL) and 4',6'-diamidino-2-phenylindole hydrochloride (DAPI) staining showed that the number of TUNEL-positive cells in both the dentate gyrus and CA1 region of the hippocampus is significantly increased in the adult offspring of low-level LG mothers. In conclusion, we propose that hippocampal neurons in the offspring of low-level LG mothers may be more vulnerable to loss through apoptosis.
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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