Associations of Circulating Platelet Endothelial Cell Adhesion Molecule‐1 Levels With Progression of Cerebral Small‐Vessel Disease, Cognitive Decline, and Incident Dementia
Bibliographic record
Abstract
Background The association between platelet endothelial cell adhesion molecule‐1 (PECAM‐1) with cerebral small‐vessel disease and cognition in dementia‐free subjects remains uninvestigated. Methods and Results A prospective cohort of dementia‐free subjects was recruited from memory clinics and followed up for 5 years. Annual neurocognitive assessments and twice‐yearly brain magnetic resonance imaging scans were performed. Associations of baseline plasma PECAM‐1 levels with cerebral small‐vessel disease, cognitive decline (Montreal Cognitive Assessment scores and executive function Z scores), and incident dementia were evaluated. Of 213 subjects (aged 70.2±7.7 years, 51.2% men), median PECAM‐1 levels were 0.790 (interquartile range, 0.645–0.955 ng/mL). Compared with the highest tertile, subjects within the lowest PECAM‐1 tertile had greater cross‐sectional white matter hyperintensity volume (β=4.84 [95% CI, 0.67–9.01]; P =0.023), age‐related white matter change scores (β=1.39 [95% CI, 0.12–2.67]; P =0.033), and cerebral microbleeds (Adjusted risk ratio, 2.59 [95% CI, 1.19–5.62]; P =0.016). Of the 204 participants with follow‐up data (median, 60.0 [interquartile range, 60.0–60.0] months), 24 (11.8%) developed incident dementia. Compared with the highest tertile, subjects within the lower tertiles of PECAM‐1 had a higher risk of incident dementia (first tertile: adjusted hazard ratio [AHR], 4.52 [95% CI, 1.35–15.13]; P =0.024; second tertile: AHR, 3.28 [95% CI, 1.02–10.60]; P =0.047). The lowest PECAM‐1 tertile was associated with greater progression of white matter hyperintensity volume (β=4.15 [95% CI, 0.06–8.24]; P =0.047), cerebral microbleeds (incident relative risk [IRR], 2.21 [95% CI, 1.05–4.65]; P =0.036), and decline in executive function (β=−0.45 [95% CI, −0.76 to −0.14]; P =0.004), and Montreal Cognitive Assessment (β=−1.32 [95% CI, −2.30 to −0.35]; P =0.008) scores. Conclusions In dementia‐free subjects, lower circulating PECAM‐1 levels are associated with greater cerebral small‐vessel disease progression and cognitive decline, thus warranting future study as a potential therapeutic target.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".