Detection of aneuploidy in human interphase spermatozoa by fluorescence in situ hybridization (FISH)
Why this work is in the frame
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Bibliographic record
Abstract
Fluorescence in situ hybridization (FISH) with repetitive-sequence DNA probes was performed on human interphase sperm to determine the utility of this technique for aneuploidy detection. DNA sequences specific for chromosomes 15 and 16 and the Y were biotinylated and hybridized with human sperm that had been treated with cetyltrimethylammonium bromide and dithiothreitol to render them accessible to the probes. Fluoresceinated avidin and antiavidin were utilized to visualize bound probe. More than 10,000 sperm were analyzed for each chromosome probe. The hybridization efficiency was 98-99% for all three probes. The frequencies for disomy (i.e., for nuclei containing two fluorescent signals) for chromosomes 15 and 16 and the Y were 0.14%, 0.17%, and 0.11%, respectively. These frequencies are all somewhat higher than those obtained by the human sperm karyotyping technique. Nevertheless, these preliminary results suggest that FISH is a simple and rapid technique that may provide an accurate screen for aneuploidy detection in human sperm.
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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