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Published in: Journal of Neurology 3/2017

01-03-2017 | Original Communication

High-sensitivity cardiac troponin I and NT-proBNP as predictors of incident dementia and Alzheimer’s disease: the FINRISK Study

Authors: Juho Tynkkynen, Jussi A. Hernesniemi, Tiina Laatikainen, Aki S. Havulinna, Perttu Salo, Stefan Blankenberg, Tanja Zeller, Veikko Salomaa

Published in: Journal of Neurology | Issue 3/2017

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Abstract

Cardiac troponin and N-terminal pro-brain natriuretic peptide (NT-proBNP) are known to associate with incident dementia. The purpose of our study was to examine whether high-sensitivity cardiac troponin I (hs-TnI) and NT-proBNP are associated with incident dementia and Alzheimer’s disease (AD) independently of each other. Our study was a part of the national population-based health examination survey, FINRISK 1997, with a total sample of 7114 subjects, including 407 incident dementia cases and 319 AD cases during the follow-up time of 18 years. Using multivariate Cox regression analyses, we calculated the hazard ratios (HR) for hs-TnI and NT-proBNP. Analyses were adjusted for the previously known dementia/AD risk factors, including the apoE genotype. NT-proBNP was independently associated with incident dementia (HR 1.32, 95% CI 1.17–1.49) and AD (HR 1.30, 95% CI 1.13–1.5). Hs-TnI was also associated with incident dementia (HR 1.12, 95% CI 1.02–1.23), but not independent of NT-proBNP (HR 1.10, 95% CI 0.99–1.21). Hs-TnI was not associated with incident AD. The results remained similar in cause-specific Cox regression models and among subjects over 40 years of age. NT-proBNP and hs-TnI improved the reclassification of dementia risk in 10 years follow-up, and hs-TNI also in 18 years of follow-up. Neither hs-TnI nor NT-proBNP was able to outperform each other in risk reclassification of dementia. Both cardiovascular biomarkers, NT-proBNP and hs-TnI, were associated with incident dementia independently of traditional dementia risk factors including the apoE genotype. NT-proBNP was also associated with AD. Both markers offered a better dementia risk reclassification compared with traditional risk factors.
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Metadata
Title
High-sensitivity cardiac troponin I and NT-proBNP as predictors of incident dementia and Alzheimer’s disease: the FINRISK Study
Authors
Juho Tynkkynen
Jussi A. Hernesniemi
Tiina Laatikainen
Aki S. Havulinna
Perttu Salo
Stefan Blankenberg
Tanja Zeller
Veikko Salomaa
Publication date
01-03-2017
Publisher
Springer Berlin Heidelberg
Published in
Journal of Neurology / Issue 3/2017
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI
https://doi.org/10.1007/s00415-016-8378-7

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