Article ; Online: Clinical validation of the PrecivityAD2 blood test: A mass spectrometry-based test with algorithm combining %p-tau217 and Aβ42/40 ratio to identify presence of brain amyloid.
Alzheimer's & dementia : the journal of the Alzheimer's Association
2024
Abstract: ... based assays were used to measure %p-tau217 and amyloid beta (Aβ)42/40 ratio in blood samples from 583 ... by PET.: Results: The area under the receiver operating characteristic curve (AUC-ROC) for %p-tau217 ... 0.94) was statistically significantly higher than that for p-tau217 concentration (0.91). The AUC ...
Abstract | Background: With the availability of disease-modifying therapies for Alzheimer's disease (AD), it is important for clinicians to have tests to aid in AD diagnosis, especially when the presence of amyloid pathology is a criterion for receiving treatment. Methods: High-throughput, mass spectrometry-based assays were used to measure %p-tau217 and amyloid beta (Aβ)42/40 ratio in blood samples from 583 individuals with suspected AD (53% positron emission tomography [PET] positive by Centiloid > 25). An algorithm (PrecivityAD2 test) was developed using these plasma biomarkers to identify brain amyloidosis by PET. Results: The area under the receiver operating characteristic curve (AUC-ROC) for %p-tau217 (0.94) was statistically significantly higher than that for p-tau217 concentration (0.91). The AUC-ROC for the PrecivityAD2 test output, the Amyloid Probability Score 2, was 0.94, yielding 88% agreement with amyloid PET. Diagnostic performance of the APS2 was similar by ethnicity, sex, age, and apoE4 status. Discussion: The PrecivityAD2 blood test showed strong clinical validity, with excellent agreement with brain amyloidosis by PET. |
---|---|
Language | English |
Publishing date | 2024-03-16 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 2211627-8 |
ISSN | 1552-5279 ; 1552-5260 |
ISSN (online) | 1552-5279 |
ISSN | 1552-5260 |
DOI | 10.1002/alz.13764 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
Zs.A 6316: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG) |
|||
Zs.MO 540: Show issues |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.