Senescence
Human observational
Senescence-linked blood markers tracked weaker recovery after heart failure hospitalization
Source: J Gerontol A Biol Sci Med Sci
REHAB-HF randomized older adults hospitalized for acute decompensated heart failure to a physical rehabilitation program or attention control. In this secondary analysis, researchers at Wake Forest, Duke and Thomas Jefferson measured 18 SASP proteins at baseline in hospital and at 3 months in 226 participants (mean age 72.3, 53% women).
What they found
The main SASP signal, a combined score reflecting inflammation and immune signaling, was associated with poorer function at baseline: 0.46 points lower on the Short Physical Performance Battery and 19.7 meters less on the 6-minute walk. Rising SASP levels over time were associated with smaller improvements, by 1.80 SPPB points and 49.7 meters on the 6-minute walk.
The nuance
This is an association within a trial, not evidence that lowering SASP improves recovery. Samples were available for 65% of participants, and the panel measures circulating proteins that are not specific to senescent cells. External validation is needed.
Youthful take
No senolytic is approved for aging or heart failure. The practical message today is that structured rehabilitation after a heart failure hospitalization matters, and that inflammation biology may help explain why some patients recover more slowly.
Primary source
Semelka CT, Ehrig MR, Pajewski NM, et al. Senescence Biomarkers Predict Physical Function and Clinical Outcomes After Heart Failure Hospitalization: Insights From REHAB-HF. J Gerontol A Biol Sci Med Sci, 2026. doi:10.1093/gerona/glag256 (PMID 42968386)
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