Chronic Administration of Muscimol and Pentobarbital Decreases Gonadotropin-Releasing Hormone mRNA Levels in the Male Rat Hypothalamus Determined by Quantitative in situ Hybridization
Bibliographic record
Abstract
The role of GABA in the control of gonadotropin-releasing hormone (GnRH) secretion is still controversial. In order to investigate the role of the GABAergic system in the regulation of GnRH gene expression in the rat brain, we studied the effects of chronic administration (2 days) of the GABAA receptor agonist muscimol and the central-type barbiturate receptor agonist pentobarbital on GnRH mRNA levels measured by in situ hybridization. Treatment with pentobarbital produced a 24% decrease in the hybridization signal. Similarly, muscimol treatment decreased the signal by 28%. The concomitant administration of the two GABAA receptor agonists resulted in a decrease (37%) of mRNA levels which was significantly more marked than that induced by pentobarbital or muscimol alone. The present results, together with previous data, indicate that the administration of pentobarbital or muscimol can inhibit not only the release of GnRH but also the gene expression of the neuropeptide as evaluated by mRNA level measurements.
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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 | 0.001 |
| 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".