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Research Validates Blood Test for Detecting Tau and Amyloid-B Pathologies

Homepage News Research Validates Blood Test for Detecting Tau and Amyloid-B Pathologies
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Research Validates Blood Test for Detecting Tau and Amyloid-B Pathologies

June 24, 2020
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An analysis of consolidated data seeking new ways of accelerating Alzheimer’s diagnoses through differentiation from other disorders such as Progressive Supranuclear Palsy (PSP), Corticobasal Degeneration (CBD) and Multiple System Atrophy (MSA) has shown promising results.

The data suggest that a blood test for cerebrospinal fluid (CSF) tau phosphorylated at threonine 181 (p-tau181) can be used as a predictor for tau and amyloid-B proteins. Due to the simple nature of the test, it is being touted for its scalability as well as accuracy. Previous means of identifying effective biomarkers for the two pathologies were less available due to cost and invasiveness. They typically involved neuroimaging technologies and spinal fluid tests.

“The strong correlation between plasma p-tau181 and amyloid β PET, together with the increased plasma p-tau181 in amyloid β PET-positive and tau PET-negative (Braak 0) individuals suggests that this new test detects Alzheimer disease type pathology in the very early disease stages” wrote the study authors

The study examined data from 1131 individual patients and was a collaboration between researchers at McGill University’s Translational Neuroimaging Lab in Canada and the Institute of Neuroscience and Physiology at the University of Gothenburg in Sweden.

Plasma p-tau181 as a marker for differentiating Alzheimer’s from PSP or CBD diagnoses was 88.47% effective and 81.90% accurate in distinguishing Alzheimer’s from MSA.

 

Details:

News Provided by:      Neurology Live
Link to release:          Plasma P-Tau181 Biomarker May Be Accessible, Scalable Test for Alzheimer Disease

© 2019 NeurologyLive. Intellisphere, LLC. All Rights Reserved.

 

The PSP Society of Canada serves patients and families dealing with Progressive Supranuclear Palsy (PSP) and related diseases such as Multiple System Atrophy (MSA) and Corticobasal Degeneration (CBD). For more information please visit. www.pspsocietycanada.ca 

Sharing of medical news by the PSP Society of Canada is not intended as advice, support or endorsement for specific studies or outcomes shared.


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