An Assessment of the Antidepressant-like Properties of Erythropoietin in an Animal Model of Depression
Bibliographic record
Abstract
Impaired neuroplasticity and altered connectivity between different brain regions may be key features of depression.As the cytokine erythropoietin (EPO) increases brain derived neurotrophic factor (BDNF) levels, EPO may enhance neuron survival and growth, leading to antidepressant effects.Here, EPO was tested for its ability to reverse depressive-like symptoms in rats following three weeks of chronic mild stressors.Neither stressor exposure nor EPO affected sucrose preference, which has been used to model the anhedonia characteristic of depression.Additionally, EPO did not reverse stressor-induced social avoidance.BDNF mRNA expression was reduced by stressor and EPO treatments in the prefrontal cortex, and elevated in the amygdala with EPO treatment.Additionally, FGF-2 expression was reduced in the amygdala with stressor exposure, but normalized following EPO treatment.Many of the results are inconsistent with a priori hypotheses, possibly owing to factors such as the timing of tissue collection and a lack of environmental enrichment.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".