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Increased Levels of Coagulation Factor XI in Plasma Are Related to Alzheimer’s Disease Diagnosis

Begic, Edin; Hadzidedic, Suncica; Obradovic, Slobodan; Begic, Zijo; Causevic, Mirsada


Edin Begic

Slobodan Obradovic

Zijo Begic

Mirsada Causevic


Background:Alzheimer’s disease is a complex disorder of unclear etiology that develops in the elderly population. It is a debilitating, progressive neurodegeneration for which disease-modifying therapies do not exist. Previous studies have suggested that, for a subset of patients, dysregulation in hemostasis might be one of the molecular mechanisms that ultimately leads to the development of neurodegeneration resulting in cognitive decline that represents the most prominent symptomatic characteristic of Alzheimer’s disease. Objective:To examine a relationship between factors that are part of coagulation and anticoagulation pathways with cognitive decline that develops during Alzheimer’s disease. Methods:SOMAscan assay was used to measure levels of coagulation/anticoagulation factors V, VII, IX, X, Xa, XI, antithrombin III, protein S, protein C, and activated protein C in plasma samples obtained from three groups of subjects: 1) subjects with stable cognitively healthy function, 2) subjects with stable mild cognitive impairment, and 3) subjects diagnosed with probable Alzheimer’s disease. Results:Our results show that protein levels of coagulation factor XI are significantly increased in patients who are diagnosed with probable Alzheimer’s disease compared with cognitively healthy subjects or patients diagnosed with mild cognitive impairment. Furthermore, our results demonstrate that significant predictors of Alzheimer’s-type diagnosis are factors IX and XI—an increase in both factors is associated with a reduction in cognitive function. Conclusion:Our study justifies further investigations of biological pathways involving coagulation/anticoagulation factors in relation to dementia, including dementia resulting from Alzheimer’s-type neurodegeneration.

Journal Article Type Article
Acceptance Date Jun 8, 2020
Online Publication Date Sep 1, 2020
Publication Date 2020
Deposit Date Sep 7, 2021
Journal Journal of Alzheimer's Disease
Print ISSN 1387-2877
Electronic ISSN 1875-8908
Publisher IOS Press
Volume 77
Issue 1
Pages 375-386
Public URL