Enhanced Bioavailability and Immune Benefits of Liposome-Encapsulated Vitamin C: A Combination of the Effects of Ascorbic Acid and Phospholipid Membranes
Bibliographic record
Abstract
The bioavailability of vitamin C, or ascorbic acid, depends on limiting transport mechanisms that may be bypassed by liposome-encapsulation. The goal for this study was to evaluate the uptake, antioxidant, and immune-modulating effects of liposome-encapsulated vitamin C (LEC) using Lypo-Spheric® technology, compared to three controls: ascorbic acid (AA), the phospholipid fraction composing the liposome, and placebo. A double-blinded placebo-controlled cross-over study design involved twelve healthy participants attending four clinic visits. At each visit, a baseline blood draw was performed, followed by consumption of 1 g LEC, 1 g AA, the phospholipid component of LEC, or placebo. Additional blood draws were performed at 2, 4, and 6 h. Consuming LEC and AA increased blood levels of vitamin C; the levels were significantly higher after consuming LEC at all timepoints when compared to AA (p < 0.01). LEC consumption increased serum antioxidant capacity (p < 0.01 at 2 h) and protection. Consuming LEC increased IFN-γ levels at 6 h, while consuming the phospholipid fraction rapidly decreased inflammatory cytokines IL-6, MCP-1, and MIP-1α at 2 h. Consuming LEC provided enhanced vitamin C bioavailability and antioxidant protection compared to AA. Consuming the phospholipids had anti-inflammatory effects. The results suggest that LEC provides antioxidant and immune benefits above AA, useful in preventive medicine.
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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 | 0.001 | 0.001 |
| 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 | 0.001 |
| 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".