Human study · Aging · 5 Nov 2026
Resistant hypertension lined up with stiffer arteries and a senescence-linked PTEN-AKT pattern in blood cells
Source: GeroScience
What the research found
GeroScience published a human and cell study on 5 November 2026. Yu, Hillmeister, and colleagues looked at resistant hypertension, blood pressure that stays high despite treatment, and asked whether it tracks with faster vascular aging. In the WalkByLab cohort, body mass index and age rose from normal blood pressure to resistant hypertension. People with resistant hypertension had lower flow-mediated dilation and a higher pulse wave index, with an unchanged ankle-brachial index, a pattern the authors tie to endothelial dysfunction and arterial stiffness. Gene-expression sets from obesity studies were enriched for inflammation, PI3K-AKT, and senescence-linked pathways. In blood cells from people with resistant hypertension, PTEN was lower, AKT phosphorylation was higher, and p16 and p21 were higher. In human endothelial cells, serum from people with obesity, or a drug that blocks PTEN, turned on AKT and pushed cells toward senescence. Blocking AKT reduced those effects. The abstract used here does not give the WalkByLab sample size or a sex split. This is not a blood-pressure treatment trial. DOI 10.1007/s11357-026-02627-8. Not medical advice.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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