Bioactive isoquinoline alkaloids from <i>Mahonia aquifolium</i> (pursh.) Nutt acclimatized to natural conditions in Georgia
Bibliographic record
Abstract
Species of the genus Mahonia have long been used in traditional medicine for the treatment of different types of diseases. In the present study, the alkaloid composition and biological activity of Mahonia aquifolium acclimatised to the natural conditions of Georgia were investigated. Total alkaloids were extracted from the aerial parts of the plant and fractionated using Al2O3 and SiO2 columns with C6H6–MeOH and CHCl3–MeOH solvent systems. Compound identification was carried out using TLC, LC-MS/MS, GC/MS, and NMR techniques. The alkaloids norisocorydine, liriodenine, liriodendrine, sinomenine, and glaucine were described for this species for the first time. A pronounced seasonal dynamic in their accumulation was observed. The alkaloid-enriched fractions exhibited cytotoxic and antiproliferative activity (against HaCaT, A-549, and DLD-1 cell lines), as well as antibacterial activity against E. coli and S. aureus. The obtained results highlight the pharmacological potential of M. aquifolium and the need for further phytochemical and pharmacological investigations.
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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) | 0.000 | 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 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".