Male reproductive system defects and subfertility in a mutant mouse model of oculodentodigital dysplasia1
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Oculodentodigital dysplasia (ODDD) is a dysmorphogenesis syndrome resulting from mutations in the GJA1 gene encoding the gap junction protein, connexin43 (CX43). In the testis this connexin localizes between Leydig cells, Sertoli cells and between Sertoli cells and germ cells. It is essential for Sertoli cell differentiation and spermatogenesis. This study explored male fertility in Gja1(Jrt) /+ mice which carry a dominant mutation that causes an amino acid substitution (G60S) in CX43. Gja1(Jrt) /+ mice mimic the phenotype of ODDD. Immunodetection methods revealed a reduction of both total CX43 and CX43 in membrane plaques in mutant testes. Correspondingly, intercellular coupling along the tubules was diminished as revealed by fluorescent dye transfer. Light and electron microscopy revealed loss of germ cells and sloughing of germ cells into the tubular lumen. There were also irregularities in size and shape of Sertoli cell nuclei. Analyses of cauda epididymal sperm indicated significant decreases in sperm count and sperm velocity parameters associated with sperm vigour, and significantly lower sperm head movement parameters associated with progressiveness. A significant decrease was also observed in total per cent motility. These results further confirm a critical role for CX43 in spermatogenesis and sperm maturation and support the possibility of subfertility in ODDD human males.
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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