CSF proteomic clock links brain-age acceleration to neurological disease
In an abstract, a 249-protein cerebrospinal fluid clock predicted age across cohorts; brain-age acceleration was higher in neurological diseases and predicted later cognitive and imaging decline. [1]
Automatic summary · not editorially reviewed
The key findings
A 249-protein cerebrospinal fluid clock predicted age and generalized across independent datasets. [1]
CSF brain-age acceleration was increased across neurological diseases and predicted later cognitive decline and dementia conversion. [1]
Clock proteins resolved a pro-aging pathway activation and an anti-aging collapse of neuronal and structural programs. [1]
The source at a glance
- Study type / format
- Abstract of a proteomic clock development and association study
- Population / context
- More than 10,000 cerebrospinal fluid proteomes from multiple cohorts, plus people with diverse neurological diseases
- Summary based on
- Study abstract
- Publication status
- Preprint · peer-review status not confirmed
- Original publication
- July 1, 2026
Over 10,000 CSF proteomes built the aging clock
The authors analyzed more than 10,000 cerebrospinal fluid proteomes from multiple cohorts and proteomic platforms. From these they developed a 249-protein clock that predicted age and generalized across independent datasets. A simplified 30-protein panel retained similar prognostic performance. This is reported only in the abstract.
Supporting source [1]
Accelerated brain age tracked disease and later decline
Brain-age acceleration in cerebrospinal fluid was increased across diverse neurological diseases and was associated with blood-brain barrier dysfunction. It predicted longitudinal cognitive decline, neuroimaging progression and conversion to dementia. These are associations and predictions, not proof that the clock causes disease.
Supporting source [1]
Two opposing protein programs in the abstract
The clock proteins resolved two opposing programs: a pro-aging activation of immune, vascular and blood-brain barrier, extracellular matrix and coagulation pathways, marked by CHI3L1, CD14, VWF, LRG1 and LTBP2; and an anti-aging collapse of neuronal, synaptic, axonal and structural-maintenance programs, marked by NPTX2, COL1A2, NID1, CDH8 and PENK. Brain-wide single-cell and regional mapping linked these programs to disease-vulnerable compartments.
Supporting source [1]
How to interpret this
Only the abstract was reviewed; the full text was not reviewed. Cohort sizes, follow-up durations, effect sizes and validation details are not reported in the abstract. The disease links are associations and predictions, not causal evidence.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Xu S, Guo Y, Fang K, Li S, Wang T, li Y, Zhang M, Li H, Xu T, Miao Z, Yang Y, Li Z. · europepmc.org · July 1, 2026