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N-Terminal pro-Brain Natriuretic Peptide and Associations With Brain Magnetic Resonance Imaging (MRI) Features in Middle Age: The CARDIA Brain MRI Study.


ABSTRACT:

Objective

As part of research on the heart-brain axis, we investigated the association of N-terminal pro-brain natriuretic peptide (NT-proBNP) with brain structure and function in a community-based cohort of middle-aged adults from the Brain Magnetic Resonance Imaging sub-study of the Coronary Artery Risk Development in Young Adults (CARDIA) Study.

Approach and results

In a cohort of 634 community-dwelling adults with a mean (range) age of 50.4 (46-52) years, we examined the cross-sectional association of NT-proBNP to total, gray (GM) and white matter (WM) volumes, abnormal WM load and WM integrity, and to cognitive function tests [the Digit Symbol Substitution Test (DSST), the Stroop test, and the Rey Auditory-Verbal Learning Test]. These associations were examined using linear regression models adjusted for demographic and cardiovascular risk factors and cardiac output. Higher NT-proBNP concentration was significantly associated with smaller GM volume (??=?-3.44; 95% CI?=?-5.32, -0.53; p?=?0.003), even after additionally adjusting for cardiac output (??=?-2.93; 95% CI?=?-5.32, -0.53; p?=?0.017). Higher NT-proBNP levels were also associated with lower DSST scores. NT-proBNP was not related to WM volume, WM integrity, or abnormal WM load.

Conclusion

In this middle-aged cohort, subclinical levels of NT-proBNP were related to brain function and specifically to GM and not WM measures, extending similar findings in older cohorts. Further research is warranted into biomarkers of cardiac dysfunction as a target for early markers of a brain at risk.

SUBMITTER: Ferguson IT 

PROVIDER: S-EPMC5949318 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Publications

N-Terminal pro-Brain Natriuretic Peptide and Associations With Brain Magnetic Resonance Imaging (MRI) Features in Middle Age: The CARDIA Brain MRI Study.

Ferguson Ian T IT   Elbejjani Martine M   Sabayan Behnam B   Jacobs David R DR   Meirelles Osorio O   Sanchez Otto A OA   Tracy Russell R   Bryan Nick N   Launer Lenore J LJ  

Frontiers in neurology 20180507


<h4>Objective</h4>As part of research on the heart-brain axis, we investigated the association of N-terminal pro-brain natriuretic peptide (NT-proBNP) with brain structure and function in a community-based cohort of middle-aged adults from the Brain Magnetic Resonance Imaging sub-study of the Coronary Artery Risk Development in Young Adults (CARDIA) Study.<h4>Approach and results</h4>In a cohort of 634 community-dwelling adults with a mean (range) age of 50.4 (46-52) years, we examined the cross  ...[more]

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