<i>HFE</i> -C282Y/C282Y Hemochromatosis Patients Have Lower Serum Transferrin and Strong Negative Correlations Between Iron, Ferritin, and Transferrin Saturation Versus Transferrin Compared With <i>HFE</i> -wt/wt Wild-Type Subjects
Bibliographic record
Abstract
Background: HFE-C282Y/C282Y hemochromatosis patients have lower serum transferrin levels than normal individuals, but the reason for this discrepancy has drawn little scientific attention and remains unclarified. The objective of this study was to examine transferrin levels and their correlations with other biochemical iron status markers in Danish patients with the C282Y/C282Y variant and compare with corresponding correlations in a population of healthy Danes with the HFE-wt/wt genotype. Methods: The study comprised 21 patients (11 men) who completed a questionnaire about age, number of years with hemochromatosis, and at least 10 consecutive blood sample results, including ferritin, iron, transferrin and transferrin saturation (TSAT). The control group consisted of 958 persons (441 men). Results: The findings were comparable in both genders: 1) All but one patient had significantly lower transferrin levels than controls; 2) Serum iron and ferritin showed negative correlations with transferrin; 3) TSAT displayed strong negative correlations with transferrin; 4) Positive correlations were present between iron and ferritin, iron and TSAT, and ferritin and TSAT. Conclusions: Hemochromatosis patients had lower transferrin levels than controls, contributing to a higher TSAT; the explanation for this remains unsolved. Patients displayed negative correlations between iron and ferritin vs. transferrin, as well as negative correlations between TSAT and transferrin, suggesting that high TSAT levels may accelerate the degradation of transferrin. In HFE-patients, transferrin metabolism is not clarified, and the potential influence of the C282Y/C282Y variant is unknown. Contrary to “normal” metabolism, which is primarily regulated by iron levels, many patients maintain low transferrin and high TSAT even after iron depletion. It would be valuable to explore whether this decrease in transferrin reflects reduced hepatic synthesis or increased degradation. There is a need for further investigation of this important dilemma in HFE-hemochromatosis.
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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 | 0.001 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".