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Plasma p‐tau 181 shows stronger network association to Alzheimer's disease dementia than neurofilament light and total tau
- Source :
- Alzheimer's & Dementia. 18:1523-1536
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Introduction We examined the ability of plasma hyperphosphorylated tau (p-tau)181 to detect cognitive impairment due to Alzheimer's disease (AD) independently and in combination with plasma total tau (t-tau) and neurofilament light (NfL). Methods Plasma samples were analyzed using the Simoa platform for 235 participants with normal cognition (NC), 181 with mild cognitive impairment due to AD (MCI), and 153 with AD dementia. Statistical approaches included multinomial regression and Gaussian graphical models (GGMs) to assess a network of plasma biomarkers, neuropsychological tests, and demographic variables. Results Plasma p-tau181 discriminated AD dementia from NC, but not MCI, and correlated with dementia severity and worse neuropsychological test performance. Plasma NfL similarly discriminated diagnostic groups. Unlike plasma NfL or t-tau, p-tau181 had a direct association with cognitive diagnosis in a bootstrapped GGM. Discussion These results support plasma p-tau181 for the detection of AD dementia and the use of blood-based biomarkers for optimal disease detection.
- Subjects :
- Oncology
medicine.medical_specialty
medicine.diagnostic_test
Epidemiology
business.industry
Health Policy
Neurofilament light
Neuropsychology
Total tau
Disease
Neuropsychological test
Plasma biomarkers
medicine.disease
Psychiatry and Mental health
Cellular and Molecular Neuroscience
Developmental Neuroscience
Internal medicine
mental disorders
medicine
Dementia
Neurology (clinical)
Geriatrics and Gerontology
Association (psychology)
business
Subjects
Details
- ISSN :
- 15525279 and 15525260
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Alzheimer's & Dementia
- Accession number :
- edsair.doi...........adfc1d57b17fe5639dde525f1c3983fc