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Cited by 561

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

A new model of reproductive aging: the decline in ovarian non-growing follicle number from birth to menopause

Open access
Hansen, K. R., Knowlton, N. S., Thyer, A. C., Charleston, J. S., Soules, M. R., Klein, N. A.·2008·Human Reproduction

Abstract

BACKGROUND: The primary determinant of reproductive age in women is the number of ovarian non-growing (primordial, intermediate and primary) follicles (NGFs). To better characterize the decline in NGF number associated with aging, we have employed modern stereology techniques to determine NGF number in women from birth to menopause. METHODS: Normal human ovaries were collected from 122 women (aged 0-51 years) undergoing elective oophorectomy, organ donation or autopsy. After gross pathologic examination, systematic random sampling was utilized to obtain tissue for analysis by the fractionator/optical disector method. Models to describe the resulting decay curve were constructed and evaluated. RESULTS: NGF decay was best described by a simple power function: log (y) = ax(b) + c, where a, b and c are constants and y = NGF count at age x (R(2) = 0.84, Sums of Squares Error = 28.18 on 119 degrees of freedom). This model implies that follicles decay faster with increasing age. CONCLUSIONS: Unlike previous models of ovarian follicle depletion, our model predicts no sudden change in decay rate, but rather a constantly increasing rate. The model not only agrees well with observed ages of menopause in women, but also is more biologically plausible than previous models. Although the model represents a significant improvement compared with earlier attempts, a considerable percentage of the variation in NGF number between women cannot be explained by age alone.

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Crossref · 10.1093/humrep/dem408

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Metadata

Authors
Hansen, K. R., Knowlton, N. S., Thyer, A. C., Charleston, J. S., Soules, M. R., & Klein, N. A.
Venue
Human Reproduction
Published
2008-03-01
Volume
23
Issue
3
Pages
699-708
ISSN
  • 0268-1161 (ISSN-L)
  • 1460-2350
OpenAlex
W2153143103
Cited by
561
References
40
FWCI
25.11
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: A new model of reproductive aging: the decline in ovarian non-growing follicle number from birth to menopause. https://app.cochat.ai/papers/10.1093/humrep/dem408
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Hansen, K. R., Knowlton, N. S., Thyer, A. C., Charleston, J. S., Soules, M. R., & Klein, N. A. (2008). A new model of reproductive aging: the decline in ovarian non-growing follicle number from birth to menopause. Human Reproduction. https://doi.org/10.1093/humrep/dem408

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.