Ovarian proteins reveal continued molecular remodeling decades after menopause
Published in Biology, Journals.
Published October 14, 2026.
A study first published in Aging Cell on October 13 finds that ovarian tissue continues to change molecularly long after menopause. Researchers at the Buck Institute and Northwestern University analyzed healthy ovarian tissue from 28 women aged 50–75 using mass spectrometry.
The team measured 5,812 protein groups. Comparing participants aged 70 or older with those aged 50–59 identified 117 significantly altered proteins. Older tissue showed greater representation of pathways involved in metabolism, innate immunity and extracellular-matrix remodeling.
The researchers developed BuckPOMS, a 26-protein signature summarizing age-associated changes, and validated selected proteins through tissue staining. These findings challenge the view of the postmenopausal ovary as biologically inactive.
This is a small, cross-sectional tissue study: it compares different people rather than following the same individuals over decades. It does not establish that these changes cause cancer or systemic aging, validate a clinical diagnostic test, or demonstrate a treatment that reverses ovarian aging. Its value is as a molecular foundation for further research.
Source: Watson and colleagues, The Human Ovary Exhibits Dynamic Molecular Remodeling in the Decades Post-Menopause, Aging Cell (2026).