Lignans are Accessible to Human Breast Cancer Xenografts in Athymic Mice
Bibliographic record
Abstract
Lignan-rich diet has been linked with reduced breast cancer risk, and experimental studies have supported the hypothesis of lignans as cancer growth inhibiting compounds. However, it has not been clear if these compounds are accessible in the mammary tumor tissue in vivo. In this study, the accessibility and accumulation of lignans to breast cancer tissue was determined after oral administration of tritium labeled dietary lignan secoisolariciresinol diglucoside (3H-SDG) to athymic mice bearing MCF-7 tumors. The 3H-SDG administration increased tumor tissue radioactivity to the level similar to that in brain, skin, spleen, kidney, uterus, and lungs. The tumor tissue radioactivity was up to 92% of that found in serum, with the highest concentrations found in small (< 0.5 g) tumors. Accessibility of lignans to tumor tissue suggests that part of the anticancer activity of lignans may be due to their direct local effects on the breast cancer tissues.
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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 | 0.001 | 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) | 0.003 | 0.001 |
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".