Plasma proteins partly link biological aging to MASLD risk in a UK Biobank cohort
In 52,131 UK Biobank participants followed a median 13.60 years, all four biological aging indicators were linked to incident MASLD, and plasma proteins partly mediated this association. [1]
Automatic summary · not editorially reviewed
The key findings
The study analyzed 2,911 plasma proteins in 52,131 UK Biobank participants and linked all four biological aging indicators to MASLD incidence. [1]
Over a median 13.60 years, 762 participants developed MASLD; proteins mediated 0.5 to 50.7% of the risk, with five proteins shared across all indicators. [1]
Enrichment analyses indicated a multi-organ protein origin, mainly lung, adipose tissue and arteries, with immune-inflammatory pathways dominating. [1]
The source at a glance
- Study type / format
- Prospective cohort study (abstract).
- Population / context
- 52,131 UK Biobank participants, of whom 762 developed MASLD during follow-up.
- Summary based on
- Study abstract
- Original publication
- October 7, 2026
Aging indicators and MASLD in 52,131 UK Biobank adults
The study asked how biological aging relates to new metabolic dysfunction-associated steatotic liver disease (MASLD) and which plasma proteins might be involved. It used four biological aging indicators: telomere length, frailty index, Klemera-Doubal method biological age and phenotypic age. It analyzed 2,911 plasma proteins in 52,131 UK Biobank participants. All four indicators were significantly linked to MASLD incidence. This is an association in a cohort, not proof that aging causes MASLD.
Supporting source [1]
Proteins mediating the aging–MASLD link over 13.60 years
During a median follow-up of 13.60 years, 762 participants developed MASLD. The researchers identified distinct protein patterns for the four aging indicators. Multiple proteins significantly mediated the corresponding association, explaining 0.5 to 50.7% of the risk. In total, 769 unique mediators were found, with a core set of five proteins (AXL, CCL19, CPM, REN and TNFRSF11B) shared across all four indicators. Mediation here is statistical, so it does not establish a causal chain.
Supporting source [1]
Multi-organ protein origin and immune-inflammatory pathways
Enrichment analyses pointed to a multi-organ origin of the proteins, mainly lung, adipose tissue and arteries, with immune-inflammatory pathways dominating. The authors conclude that plasma proteins partly mediate the higher MASLD risk associated with biological aging and suggest these proteins as biomarkers for early risk stratification and possible therapeutic targets. These are proposed implications from an abstract, not validated clinical tools. The abstract reports no full-text review, and the observational design cannot show causation.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. This is an observational cohort, so the links and mediation are associations, not causes. The biomarker and therapeutic-target suggestions are proposals, not validated tools.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Cao TR, Wu LJ, Yang XH, Fan NF, Ding J, Gong M, Feng XM, Li YH, Yan YX. · europepmc.org · October 7, 2026