A substantial proteomics cohort analysis of 15,012 postmenopausal women from the UK Biobank has identified a direct association between earlier menopause timing and accelerated brain aging at the protein level. The research team, led by Alexander et al. (2026), measured aging biomarkers in blood plasma and correlated these with four downstream brain outcomes including dementia incidence, brain volume loss, cerebral small vessel disease, and white matter degradation.
Among hundreds of proteins analyzed, GDF15—a well-established aging marker—demonstrated the strongest individual correlation with menopause timing. The pro-inflammatory and extracellular matrix degradation pathways were notably upregulated in women with earlier menopause.
Crucially, these findings were independently validated in a secondary cohort of 1,210 women from the Women’s Health Initiative Long Life Study, enhancing the robustness of the evidence. The dual-cohort replication across UK and US populations underscores the consistency and generalizability of the observed proteomic aging signatures associated with earlier reproductive senescence.
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