Ontogeny of Intestinal Lipid and Lipoprotein Synthesis
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Despite increasing evidence that the fetal intestine produces apoproteins, there is limited knowledge about its ability to absorb fat. The present study focused on the intracellular processing of lipid formation and transport by lipoproteins in the developing fetus. Explants of fetal jejunum (14-20 weeks) were maintained in serum-free organ culture for 42 h with [14C]-oleate. Esterified lipids extracted from the tissue showed an abundance of phospholipids (PL; 54-77%), while those harvested from the medium displayed a predominance for triglycerides (TG; 68-73%). Only a minor percentage of radioactivity was recovered in cholesterol ester (CE) from the tissue (1.8-2.5%) or medium (1.3-2.5%). Separation of PL by thin-layer chromatography revealed a prevalence of phosphatidylcholine followed by phosphatidylethanolamine. Over the fetal period studied a trend towards increase was noted in TG, CE and most of the PL classes but not phosphatidylcholine. In parallel, we observed a progressive increase in these lipoprotein fractions produced by the fetal intestine during development, i.e., chylomicrons, very low-density lipoproteins and high-density lipoproteins. Our data stress not only the ability of the fetal intestine to absorb fat, but also the ontogenetic changes of lipid and lipoprotein synthesis.
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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 | 0.000 | 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 it