Prognostic polypeptide blood plasma biomarkers of Alzheimer's disease progression
Open accessAbstract
BACKGROUND: Patients with mild cognitive impairment (MCI) have varying risks of progression to Alzheimer's disease (AD). OBJECTIVE: To test the utility of the relative abundances of blood plasma polypeptides for predicting the risk of AD progression. METHODS: 119 blood plasma samples of patients with MCI with different outcomes (stable MCI and progressive MCI) were analyzed by untargeted, label-free shotgun proteomics. Predictive biomarkers of progressive MCI were selected by multivariate analysis, followed by cross-validation of the predictive model. RESULTS: The best model demonstrated the accuracy of ca. 79% in predicting progressive MCI. Sex differences of the predictive biomarkers were also assessed. We have identified some sex-specific protein biomarkers, e.g., alpha-2-macrogloblin (A2M), which strongly correlates with female AD progression but not with males. CONCLUSION: Significant sex bias in AD-specific biomarkers underscores the necessity of selecting sex-balanced cohort in AD biomarker studies, or using sex-specific models. Blood protein biomarkers are found to be promising for predicting AD progression in clinical settings.
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Fibrinogen elevation in plasma and cerebrospinal fluid is an early biomarker of dementia risk and is associated with progression of cognitive decline in AD.
“Biomarker studies further support the notion that fibrinogen elevation in plasma and cerebrospinal fluid is an early biomarker of dementia risk and is associated with progression of cognitive decline in AD.39,45-48”
From Machine learning reveals prominent spontaneous behavioral changes and treatment efficacy in humanized and transgenic Alzheimer's disease models (2024) · cites this paper as [48]
The “Top proteome” blood analysis section reports elevated plasma fibrinogen-chain proteins in patients with progressive, rather than stable, mild cognitive impairment, supporting a link to AD progression. The Participants and prognostic-model sections describe prediction of AD onset after follow-up. The paper does not report elevated fibrinogen in cerebrospinal fluid or establish fibrinogen as a biomarker of dementia risk or measured cognitive decline; its introduction identifies different CSF biomarkers. (LLM, conf=0.88)
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Cites
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- Authors
- Yang, H., Lyutvinskiy, Y., Herukka, S.-K., Soininen, H., Rutishauser, D., & Zubarev, R. A.
- Affiliations
- Karolinska Institutet (SE)
- University of Eastern Finland (FI)
- Science for Life Laboratory (SE)
- ORCID
- Venue
- Journal of Alzheimer's Disease
- Publisher
- SAGE Publications
- Published
- 2014-04-23
- Volume
- 40
- Issue
- 3
- Pages
- 659-666
- ISSN
- 1387-2877 (ISSN-L)
- 1875-8908
- OpenAlex
- W1588945080
- Cited by
- 52
- References
- 6
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 8 · 2020: 4 · 2019: 6 · 2018: 6 · 2017: 6 · 2016: 3 · 2015: 7 · 2014: 3 · 2013: 1
- FWCI
- 4.84
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Alzheimer s Disease (publishedVersion, other-oa)
- PubMed (publishedVersion)
- Funders
- VINNOVA
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet
- Alzheimerfonden
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
- Keywords
- Alzheimer's disease progression, mild cognitive impairment
- MeSH terms
- Aged, Aged, 80 and over, Alzheimer Disease, Blood Proteins, Female, Humans, Male, Peptides, Proteins, Sex Factors, Mass Spectrometry, Cohort Studies, Biomarkers, Disease Progression, Cognitive Dysfunction
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