A blood mRNA panel that differentiates Alzheimer's disease from other dementia types
- PMID: 36611114
- DOI: 10.1007/s00415-023-11558-9
A blood mRNA panel that differentiates Alzheimer's disease from other dementia types
Abstract
Background: Messenger RNAs (mRNAs) have been reported to be associated with Alzheimer's disease (AD). In this study, we investigated whether plasma-based mRNAs could distinguish AD from cognitively normal controls and other types of dementia, including vascular dementia (VaD), Parkinson's disease dementia (PDD), behavioral variant frontotemporal dementia (bvFTD), and dementia with Lewy body (DLB).
Methods: Plasma mRNA expression was measured in three independent datasets. Dataset 1 (n = 40; controls, 20; AD, 20) was used to identify the differentially expressed mRNAs. Dataset 2 (n = 122; controls: 60; AD: 62) was used to develop a diagnostic AD model using an mRNA panel. Furthermore, we applied the model to Dataset 3 (n = 334; control, 57; AD, 58; VaD, 55; PDD, 54; bvFTD, 55; DLB, 55) to verify its ability to identify AD and other types of dementia.
Results: Dataset 1 showed 22 upregulated and 21 downregulated mRNAs. A panel of six mRNAs distinguished AD from the control group in Dataset 2. The panel was used to successfully differentiate AD from other types of dementia in Dataset 3.
Conclusions: An AD-specific panel of six mRNAs was created that can be used for AD diagnosis.
Keywords: Alzheimer’s disease; Biomarker; Dementia; Diagnosis; mRNA.
© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.
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Grant support
- 81870825/National Natural Science Foundation of China
- 82071194/National Natural Science Foundation of China
- Z201100005520016/Beijing Brain Initiative from Beijing Municipal Science & Technology Commission
- 7202061/Beijing Municipal Natural Science Foundation
- 2022-2-2017/Capital's Funds for Health Improvement and Research