Effects of Active Immunization against Gonadotrophin-Releasing Hormone on the Concentrations of Noradrenaline, Dopamine, 5-Hydroxytryptamine and Some of Their Metabolites in the Brain and Sexual Organs of Male Rats
Bibliographic record
Abstract
This is an investigation of the effects of active immunization against gonadotrophin-releasing hormone (GnRH) conjugated to keyhole limpet hemocyanin on brain and male sexual organ concentration of catecholamines and 5-hydroxytryptamine. The treatment induces antibodies against GnRH with consequent interference with reproductive function as indicated by the attendant decrease in serum follicle-stimulating hormone (FSH), luteinizing hormone (LH) and testosterone. Rat striatal and mesolimbic dopamine levels were moderately increased by this treatment but no changes were observed in the hypothalamus. GnRH immunization also increased brain 5-hydroxytryptamine concentrations as observed in the hypothalamus, olfactory tubercles and striatum. In the male accessory sexual organs, immunity against GnRH alters the density of noradrenergic concentration. The changes occurred in opposite directions in the different regions investigated; increases in noradrenaline were observed in the prostate, with a reduction being detected in the epididymus and no changes were observed in the vas deferens or the seminal vesicles. 5-Hydroxytryptamine levels increased in the vas deferens but no effects were observed in the epididymus, prostate or seminal vesicle. It is concluded that GnRH immunization with the consequent reductions in circulating FSH, LH and testosterone are associated with changes in neurotransmitter concentration both in the brain and in some of the accessory sexual organs in the male rat.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| 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".