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- Title
Salivary Biomarkers for Alzheimer's Disease: A Systematic Review with Meta-Analysis.
- Authors
Nijakowski, Kacper; Owecki, Wojciech; Jankowski, Jakub; Surdacka, Anna
- Abstract
Alzheimer's Disease (AD) is the most common neurodegenerative disease which manifests with progressive cognitive impairment, leading to dementia. Considering the noninvasive collection of saliva, we designed the systematic review to answer the question "Are salivary biomarkers reliable for the diagnosis of Alzheimer's Disease?" Following the inclusion and exclusion criteria, 30 studies were included in this systematic review (according to the PRISMA statement guidelines). Potential biomarkers include mainly proteins, metabolites and even miRNAs. Based on meta-analysis, in AD patients, salivary levels of beta-amyloid42 and p-tau levels were significantly increased, and t-tau and lactoferrin were decreased at borderline statistical significance. However, according to pooled AUC, lactoferrin and beta-amyloid42 showed a significant predictive value for salivary-based AD diagnosis. In conclusion, potential markers such as beta-amyloid42, tau and lactoferrin can be detected in the saliva of AD patients, which could reliably support the early diagnosis of this neurodegenerative disease.
- Subjects
ALZHEIMER'S disease; LACTOFERRIN; NEURODEGENERATION; TAU proteins; BIOMARKERS; DIAGNOSIS
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 2, p1168
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25021168