Differential methylation of STOX1 in human placenta
Bibliographic record
Abstract
The 10q22 chromosomal region with genomic linkage to pre-eclampsia in Dutch females shows a parent-of-origin effect with maternal transmission of the Y153H susceptibility allele of the STOX1 gene. Although the CpG island within the STOX1 promoter region shows no differential methylation, this study describes the identification of a differentially methylated region (DMR) in intron 1 of the STOX1 gene. Methylation coincides with STOX1 expression, where high methylation leads to reduced expression. In the SGHPL-5 extravillous trophoblast cell line allele-specific expression was observed in a subset of cells. Although no allele-specific expression could be detected in early placenta samples, these samples did show an increase in methylation when they were homozygous for the Y153H susceptibility allele. Allele-specific methylation was observed in column extravillous trophoblast samples with the methylated allele being paternal in origin. We conclude that STOX1 is paternally imprinted, maternally expressed, with the DMR identified in this study showing parental-specific methylation in specific cell-types, hypothesized to occur in villous cytotrophoblasts, and proven in column extravillous trophoblasts originating from the anchoring villus. In other (placental) cells methylation is independent of parental origin, but regulates STOX1 expression with the Y153H genotype directing the level of methylation.
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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 | 0.000 | 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) | 0.001 | 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".