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- W3036497561 abstract "BackgroundEvidences of infectious pathogens in Alzheimer's disease (AD) brains may suggest a deteriorated innate immune system in AD pathophysiology. We previously demonstrated reduced salivary lactoferrin (Lf) levels, one of the major antimicrobial proteins, in AD patients.MethodsTo assess the clinical utility of salivary Lf for AD diagnosis, we examine the relationship between salivary Lf and cerebral amyloid-β (Aβ) load using amyloid-Positron-Emission Tomography (PET) neuroimaging, in two different cross-sectional cohorts including patients with different neurodegenerative disorders.FindingsThe diagnostic performance of salivary Lf in the cohort 1 had an area under the curve [AUC] of 0•95 (0•911–0•992) for the differentiation of the prodromal AD/AD group positive for amyloid-PET (PET+) versus healthy group, and 0•97 (0•924–1) versus the frontotemporal dementia (FTD) group. In the cohort 2, salivary Lf had also an excellent diagnostic performance in the health control group versus prodromal AD comparison: AUC 0•93 (0•876–0•989). Salivary Lf detected prodromal AD and AD dementia distinguishing them from FTD with over 87% sensitivity and 91% specificity.InterpretationSalivary Lf seems to have a very good diagnostic performance to detect AD. Our findings support the possible utility of salivary Lf as a new non-invasive and cost-effective AD biomarker.FundingInstituto de Salud Carlos III (FIS15/00780, FIS18/00118), FEDER, Comunidad de Madrid (S2017/BMD-3700; NEUROMETAB-CM), and CIBERNED (PI2016/01) to E.C.; Spanish Ministry of Economy and Competitiveness (SAF2017-85310-R) to J.L.C., and (PSI2017-85311-P) to M.A.; International Centre on ageing CENIE-POCTEP (0348_CIE_6_E) to M.A.; Instituto de Salud Carlos III (PIE16/00021, PI17/01799), to H.B." @default.
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- W3036497561 date "2020-07-01" @default.
- W3036497561 modified "2023-10-18" @default.
- W3036497561 title "Decreased salivary lactoferrin levels are specific to Alzheimer's disease" @default.
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- W3036497561 doi "https://doi.org/10.1016/j.ebiom.2020.102834" @default.
- W3036497561 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7378957" @default.
- W3036497561 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32586758" @default.
- W3036497561 hasPublicationYear "2020" @default.