Bibliographic record
Abstract
Research on oocytes and their associated follicles has advanced significantly over the past two decades, shedding light on the fragility of the processes governing their active life. The ovarian follicles and the germ cells within them are crucial to understand conception, growth, and survival mechanisms. Folliculogenesis, the process by which ovarian follicles develop, starts with the primordial follicle, which contains oocytes arrested in meiotic division. These follicles are crucial for the ovarian reserve and serve as the sole source of oocytes throughout a woman’s life. Follicle maturation is regulated by a series of biochemical signals involving granulosa and theca cells, as well as hormones like FSH and AMH. This process begins during fetal development and continues until menopause, with primordial follicles being activated and transitioning into primary follicles. Each stage of follicular maturation is linked to meiotic events that drive the oocyte’s progressive development. Despite the continuous loss of primordial follicles, these cells retain autocrine and paracrine factors that regulate their activation, promoting oocyte growth and supporting both spontaneous and assisted reproduction. The early stages of folliculogenesis involve critical signaling pathways and growth factors such as mTOR, PI3K, and Hippo, which regulate follicle development even before gonadotropin involvement. Initially, follicular growth is influenced by local growth factors like activins and AMH, with gonadotropins playing a larger role as the follicle progresses. Follicles develop through four stages—primary, secondary, tertiary, and Graafian—each regulated by intra-ovarian mechanisms. Oocytes also actively contribute to folliculogenesis by secreting growth factors that interact with granulosa and theca cells. As follicles grow, the oocyte is suspended in follicular fluid and surrounded by granulosa cells forming a structure called the corona radiata. Meiosis begins in fetal life but is arrested until puberty when it resumes just before ovulation. However, not all oocytes will be ovulated; many undergo atresia through apoptosis. Abnormalities in signaling pathways or follicle development can lead to reproductive disorders, highlighting the importance of understanding the molecular mechanisms involved in ovarian function.
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.018 | 0.003 |
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".