Ovarian stiffness and fibrosis mark reproductive aging in women
Shear wave elastography and transcriptomic profiling show that ovarian fibrosis correlates with reduced oocyte yield and follicular efficiency.
Research square · Duncan F et al. · Paper published 9 Sep 2026
In a preprint study of human women, researchers analyzed how ovarian fibrosis changes with age by combining shear wave elastography, extracellular matrix neoepitope fingerprinting, and single-cell RNA sequencing. In an initial cohort of 32 women aged 33 and younger or 37 and older, age predicted higher ovarian stiffness measured non-invasively. Mean ovarian stiffness was independently tied to reduced oocyte yield and lower follicular efficiency. Extracellular matrix analysis revealed a fibrotic index favoring matrix formation over degradation. Single-cell sequencing of follicular fluid aspirates showed an age-linked fibroinflammatory stromal program enriched in pro-fibrotic signaling and stromal-immune crosstalk. The researchers confirmed the link between advancing age and greater ovarian stiffness in a second validation cohort of 100 women aged 25 to 45.
Why it matters
Ovarian aging drives infertility and broader systemic morbidity in women. Establishing ovarian fibrosis as a quantifiable feature offers a measurable biomarker and a potential target for reproductive longevity interventions.
Caveats
This observational study is a preprint that has not yet completed peer review. Larger prospective trials are required to test whether reducing fibrosis can improve reproductive function.
Written from the paper’s abstract, and every claim checked against it before publishing. Read the paper for the full methods and data.
The paper
Multimodal profiling establishes ovarian fibrosis as a measurable and targetable hallmark of human reproductive aging
Duncan F, Hughes L, Zaniker-Gomez E et al.
Research square · 9 Sep 2026 · Preprint, not yet peer-reviewed
- Relevance
- Core geroscience
- News value
- Important
- Evidence
- Humans
- Status
- Preprint
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