Why is there an "oversupply" of human ovarian follicles?†.
Level 5 - mechanism / opinion, no new human data
Theoretical mathematical modeling applying extreme value theory without primary clinical data.
PubMed 36795042 · doi:10.1093/biolre/ioad022
What was done
The authors applied extreme value theory to histological primordial follicle (PF) count data to evaluate the hypothesis that primordial follicle growth activation (PFGA) is inherently stochastic. They modeled whether an initial oversupply of hundreds of thousands of follicles at birth enables a stochastic activation mechanism to maintain long-term ovarian function.
What was found
The abstract reports no numerical values. The mathematical modeling indicated that stochastic PFGA coupled with high initial follicle numbers provides a steady supply of growing follicles lasting decades, maintains robustness against physiological perturbations, and results in tightly controlled timing for the cessation of ovarian function (natural menopause).
Why it matters
This framework offers a mathematical rationale for why the ovarian reserve is heavily oversupplied at birth, suggesting that stochastic follicle activation is not biological waste but a mechanism that ensures reproductive lifespan reliability.
Limits
The abstract provides no empirical sample size, patient population characteristics, or numerical data. The conclusions rely on theoretical modeling assumptions rather than direct experimental or clinical prospective validation.
Cited by
- supports Women are born with millions of eggs, do not generate new eggs after birth, and deplete their reserve to approximately 1,000 eggs at menopause.