White Hair Follicles in Alopecia Areata.
Bibliographic record
Abstract
Background: Alopecia areata (AA) is a common, non-scarring type of patchy or diffuse hair loss with possible remaining or regrowing white hair follicles (WHF) . Aim: to examine white hair follicles within AA patches, evaluating their melanocytic components using several melanocytic markers and to compare that to expression in AA patches without white hairs. Methods: The study was conducted on AA patients attending the dermatology outpatient clinic, Minia University Hospitals. Biopsies were taken from the lesion in each patient, in group 1 the biopsies taken from AA with white hair and group 2 the biopsies taken from the AA without white hair. Processed routinely for transverse sections and stained for Sox 10, CD117, Melan A and HMB-45 melanocytic markers. The Sum of the positive stained cells recorded and average follicular expression was calculated. Result: There is apparent expression of almost all melanocytic markers within AA patches in both groups except for HMB45 which showed minimal values, There is a statistically significant decline of the expression of Sox10 marker in white hair group 1 .
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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 | 0.000 |
| 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".