Investigation of a Neuroprotective Peptide from Round Scad ( <i>Decapterus maruadsi</i> ): Bioactivity Validation, Gastrointestinal Digestion Stability, and Structure–Activity Relationship Analysis
Bibliographic record
Abstract
) peptide Pro-Pro-Trp(PPW) through molecular simulations, in cellular cell model and in vivo experiments. Our results showed that PPW conferred neuroprotection in glutamate-damaged SH-SY5Y cells. PPW was resistant to gastrointestinal digestion and could transport across the Caco-2 cell monolayer via the PepT1 transporter and transcytosis pathway. The physicochemical properties of PPW, including low molecular weight and a high content of hydrophobic amino acids, were beneficial for its stability. Furthermore, PPW attenuated the cognitive decline in sleep-deprived mice, and PPW alleviated oxidative stress and neuroinflammation by activating the Akt/Nrf2 pathway and suppressing the NFκB pathway. Quantum chemistry analysis of structure-activity relationships identified the indole group of Trp as a crucial active site for the biological activity of PPW. These findings provide a basis for the application of the round scad peptide as a functional food.
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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 | 0.000 |
| 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".