Evidence map›Paper›PMID 39948000›Full record

ArticleThe journal of prevention of Alzheimer's disease2025

Diagnostic and discriminative accuracy of plasma phosphorylated tau 217 for symptomatic Alzheimer's disease in a Chinese cohort.

Li-Min Li, Ping Che, Dequan Liu, Yu Wang, Jia Li, Dian He, Tao Liu, Nan Zhang

Abstract read
In one paragraph

Article in The journal of prevention of Alzheimer's disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Article
  4. Biomarkers in preclinical and early Alzheimer's disease in China: a scoping review.The journal of prevention of Alzheimer's disease · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Li-Min LiDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154, Anshan Road, Tianjin, China.
Ping CheDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154, Anshan Road, Tianjin, China.
Dequan LiuTianjin Kingmed Diagnostics Laboratory Co.Ltd, Building B, Building 3, Sanwu Internet Technology Park, Binhai High-tech Zone, Tianjin, China; Tianjin Key Laboratory of Multi-omics Precision Diagnosis Technology for Neurological Diseases, Building B, Building 3, Sanwu Internet Technology Park, Binhai High-tech Zone, Tianjin, China.
Yu WangDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154, Anshan Road, Tianjin, China.
Jia LiTianjin Kingmed Diagnostics Laboratory Co.Ltd, Building B, Building 3, Sanwu Internet Technology Park, Binhai High-tech Zone, Tianjin, China.
Dian HeDepartment of Neurology, The Affiliated Hospital of Guizhou Medical University, No. 28, Guiyi Street, Guiyang, Guizhou Province, China. Electronic address: hedian@gmc.edu.cn.
Tao LiuDepartment of Neurology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), No. 19, Xiuhua Road, Haikou, China. Electronic address: ltao829@163.com.
Nan ZhangDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154, Anshan Road, Tianjin, China. Electronic address: nkzhangnan@yeah.net.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlasma phosphorylated tau at threonine 217 (p-tau217) measured with an ultrasensitive immunoassay method has been demonstrated to be an optimal biomarker for Alzheimer's disease (AD).

objectivesThe aim of this study was to establish the reference interval for plasma p-tau217 in Chinese individuals and evaluate its diagnostic value in symptomatic AD. DESIGN, SETTING,

participantsWe recruited 150 cognitively unimpaired (CU) individuals, 60 patients with AD dementia, 30 patients with mild cognitive impairment (MCI) due to AD, 40 patients with frontotemporal lobar degeneration (FTLD), and 70 patients with subcortical ischaemic vascular dementia (SIVD). MEASUREMENTS: The concentrations of plasma p-tau217, total tau, amyloid-beta (Aβ)42 and Aβ40 were measured with a single-molecule array.

resultsPlasma p-tau217 outperformed other biomarkers in discriminating AD patients from CU controls, FTLD patients, and SIVD patients (AUC = 0.983, 0.936, 0.892) and discriminating MCI patients from CU controls (AUC = 0.943). The plasma p-tau217 level was negatively correlated with memory in patients with symptomatic AD.

conclusionThe diagnostic accuracy of plasma p-tau217 was exceptional for AD, even at early stages, in the Chinese population.

Indexed as

Alzheimer Diseasetau ProteinsAgedAged, 80 and overAmyloid beta-PeptidesBiomarkersChinaCognitive DysfunctionCohort StudiesDementia, VascularEast Asian PeopleFemaleFrontotemporal Lobar DegenerationHumansMaleMiddle AgedAmyloid beta-PeptidesBiomarkersMAPT protein, humantau ProteinsAlzheimer's diseaseAmyloid-βPhosphorylated tauPlasma biomarkersReference interval

Identifiers

PMID39948000
PMCPMC12183951

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.