The impact of demographic, clinical, genetic, and imaging variables on tau PET status
Journal Article
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· European Journal of Nuclear Medicine and Molecular Imaging
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- Lund Univ. (Sweden). Clinical Memory Research Unit; Vrije Univ., Amsterdam (Netherlands). VU Univ. Medical Center. Amsterdam UMC. Amsterdam Neuroscience. Dept. of Neurology. Alzheimer Center Amsterdam; OSTI
- Lund Univ. (Sweden). Clinical Memory Research Unit
- Yonsei Univ., Seoul (Korea, Republic of). Gangnam Severance Hospital. Dept. of Neurology
- King's College, London (United Kingdom). School of Biomedical Engineering and Imaging Sciences; Univ. College London (United Kingdom). Inst. of Neurology. Dept. of Neurodegenerative Disease. Dementia Research Centre; Univ. College London (United Kingdom). Dept. of Medical Physics. Centre for Medical Image Computing
- Lund Univ. (Sweden). Clinical Memory Research Unit; Skåne Univ. Hospital, Lund (Sweden). Dept. of Neurology; Lund Univ. (Sweden). Wallenberg Centre for Molecular Medicine
- Skåne Univ. Hospital, Lund (Sweden). Dept. of Radiation Physics
- Skåne Univ. Hospital, Lund (Sweden). Dept. of Clinical Physiology and Nuclear Medicine
- Lund Univ. (Sweden). Clinical Memory Research Unit; Skåne Univ. Hospital, Malmö (Sweden). Memory Clinic
- Yonsei Univ., Seoul (Korea, Republic of). College of Medicine. Gangnam Severance Hospital. Dept. of Nuclear Medicine
- Yonsei Univ., Seoul (Korea, Republic of). College of Medicine. Gangnam Severance Hospital. Dept. of Nuclear Medicine; Korea Inst. Radiological and Medical Sciences, Seoul (Korea, Republic of). Division of applied RI
- Univ. of California, San Francisco, CA (United States). Dept. of Neurology, Memory and Aging Center
- F. Hoffmann-La Roche Ltd, Basel (Switzerland)
- Avid Radiopharmaceuticals, Philadelphia, PA (United States)
- McGill Univ., Montreal, QC (Canada). Douglas Mental Health University Inst. Depts. of Psychiatry and Neurology & Neurosurgery
- F. Hoffmann-La Roche Ltd, Basel (Switzerland); Univ. of California, San Francisco, CA (United States). Dept. of Radiology and Biomedical Imaging; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Biophysics and Integrated Bioimaging Division
Purpose: A substantial proportion of amyloid-β (Aβ)+ patients with clinically diagnosed Alzheimer’s disease (AD) dementia and mild cognitive impairment (MCI) are tau PET–negative, while some clinically diagnosed non-AD neurodegenerative disorder (non-AD) patients or cognitively unimpaired (CU) subjects are tau PET–positive. We investigated which demographic, clinical, genetic, and imaging variables contributed to tau PET status. Methods: We included 2338 participants (430 Aβ+ AD dementia, 381 Aβ+ MCI, 370 non-AD, and 1157 CU) who underwent [18F]flortaucipir (n = 1944) or [18F]RO948 (n = 719) PET. Tau PET positivity was determined in the entorhinal cortex, temporal meta-ROI, and Braak V-VI regions using previously established cutoffs. We performed bivariate binary logistic regression models with tau PET status (positive/negative) as dependent variable and age, sex,APOEε4, Aβ status (only in CU and non-AD analyses), MMSE, global white matter hyperintensities (WMH), and AD-signature cortical thickness as predictors. Additionally, we performed multivariable binary logistic regression models to account for all other predictors in the same model. Results: Tau PET positivity in the temporal meta-ROI was 88.6% for AD dementia, 46.5% for MCI, 9.5% for non-AD, and 6.1% for CU. Among Aβ+ participants with AD dementia and MCI, lower age, MMSE score, and AD-signature cortical thickness showed the strongest associations with tau PET positivity. In non-AD and CU participants, presence of Aβ was the strongest predictor of a positive tau PET scan. Conclusion: We identified several demographic, clinical, and neurobiological factors that are important to explain the variance in tau PET retention observed across the AD pathological continuum, non-AD neurodegenerative disorders, and cognitively unimpaired persons.
- Sponsoring Organization:
- Alzheimer's Association; Alzheimer's Society; National Institutes of Health (NIH); Rainwater Charitable; USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1816071
- Alternate ID(s):
- OSTI ID: 23046007
- Journal Information:
- European Journal of Nuclear Medicine and Molecular Imaging, Journal Name: European Journal of Nuclear Medicine and Molecular Imaging Journal Issue: 7 Vol. 48; ISSN 1619-7070
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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