Developmental Effects of 7 Hz, Square Wave Magnetic Fields and Nitric Oxide Modulation on Organ Systems
Bibliographic record
Abstract
Prenatal or perinatal exposure to physiologically-patterned magnetic fields (MFs) affects behaviour in weanling (22d) and young adult (90d) rats. However, the long-term (120d-730d) biological effects of these MFs have not been examined. In the current study, the long-term effects of developmental exposure to a physiologically-patterned MF, and their dependence on nitric oxide (NO) activity, were investigated. Pregnant dams were exposed from 2d before to 14d after parturition to square wave, 7 Hz MF and to either water or nitric oxide (NO) modulation in tap water with NO precursor 1.0 g/L L-arginine or 0.5 g/L NO inhibitor n-methylarginine. To assess the possibility of intensity-windowing of any effects, MF intensities of <1, 1, 5, 10, 50 and 500 nT were employed. Male offspring were euthanized for post-mortem examination and wet organ weights were then taken. Analysis showed increased brain weight in 10 and 50 nT-treated groups, increased bodyweight in 50 nT-treated groups and suggested increased testicular weight in 5, 10 and 50 nT-treated groups. Few effects of NO modulation were evident in these rats, reinforcing the idea that these are short-term and reversible. These findings suggest that subtle long-term changes in organ structure can arise from developmental exposure to physiologically-patterned MFs.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".