The Anti-brain Ageing Effects of Krill Phosphatidylserine in SAMP10 Mice
Bibliographic record
Abstract
We examined the biological effect of krill phosphatidylserine (K-PS) on brain ageing and investigated the mechanisms that how K-PS works on the brain using senescence-accelerated mouse (SAM) model with age-associated neurodegeneration. SAMP10 mice with 5 months of age were treated orally once a day for 75 days with 10 or 100 mg kg?1 d?1 K-PS (low and high dose). The effect of K-PS treatment on the cross-sectional area and Nissl body number of the neocortex at point C, an area prone to atrophy in SAMP10 mice, behavior and oxidative stress were evaluated by Image-Pro Plus software, step-down testing, and malondialdehyde (MDA) and glutathione peroxidase (GSH-Px) assays. Ionized calcium binding adaptor molecule 1 (Iba-1) and insulin-like growth factor 1 (IGF-1) expression was evaluated using immunohistochemistry. Low or high doses of K-PS significantly increased the cross-sectional area and Nissl body number at point C, partly reversed memory impairment, increased the activity of GSH-Px and reduced MDA levels. Moreover, immunohistochemistry indicated that K-PS suppressed Iba-1 expression and upregulate the expression of IGF-1. These findings suggest that K-PS could prevent or slow the progression of brain atrophy and neuronal damage associated with aging by the inhibition of Iba-1 and the upregulation of IGF-1 expression.
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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 | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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".