What does this research mean for the field?

Plasma brain-derived p-Tau217 (BD-p-Tau217) demonstrates superior diagnostic accuracy for detecting brain beta-amyloid positivity and better prognostic utility for cognitive decline compared to other p-Tau species. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To compare plasma BD-p-Tau217 with other p-Tau species for detecting beta-amyloid positivity and evaluate its prognostic utility.

June 8, 2026The Journal of Prevention of Alzheimer s DiseaseOpen Access

Plasma brain-derived p-Tau217 outperforms other p-Tau species in detecting abnormal brain amyloid in an Asian cohort of older people with cerebrovascular disease burden

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Authors

JCJoyce R. ChongNational University of Singapore SHSaima HilalNational University Health System NVNarayanaswamy VenketasubramanianRaffles Institution

Discussion

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Implication

Observational study finds BD-p-Tau217 excels in detecting abnormal brain amyloid in older individuals, suggesting practical benefits.

Key Points

To compare plasma BD-p-Tau217 with other p-Tau species for detecting beta-amyloid positivity and evaluate its prognostic utility.
Observed a cohort of 213 participants from memory clinics in Singapore.
Measured amyloid status using PET imaging.
Assessed the diagnostic performance by analyzing AUC and predictive values for different p-Tau species.
Plasma BD-p-Tau217 achieved an AUC of 0.965, outperforming other p-Tau forms (AUC 0.823-0.937, all p ≤ 0.008).
BD-p-Tau217 provided a positive predictive value of 90% and a negative predictive value of 97% using a three-range reference.
The high-risk group based on BD-p-Tau217 exhibited faster cognitive decline compared to low-risk individuals.

Cite This Study

Chong et al. (2026) studied this question.

synapsesocial.com/papers/6a265bb6ad53cfb9357c528e https://doi.org/10.1016/j.tjpad.2026.100615

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Plasma brain-derived p-Tau217 outperforms other p-Tau species in detecting abnormal brain amyloid in an Asian cohort of older people with cerebrovascular disease burden

Discussion

Member takes

Implication

Key Points

Cite This Study

Plasma brain-derived p-Tau217 outperforms other p-Tau species in detecting abnormal brain amyloid in an Asian cohort of older people with cerebrovascular disease burden

Discussion

Member takes

Implication

Key Points

Cite This Study

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