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Associations Between Psychological Constructs and Cardiac Biomarkers After Acute Coronary Syndrome

Associations Between Psychological Constructs and Cardiac Biomarkers After Acute Coronary Syndrome ABSTRACT Objective Psychological constructs are associated with cardiovascular health, but the biological mechanisms mediating these relationships are unknown. We examined relationships between psychological constructs and markers of inflammation, endothelial function, and myocardial strain in a cohort of post–acute coronary syndrome (ACS) patients. Methods Participants (N = 164) attended study visits 2 weeks and 6 months after ACS. During these visits, they completed self-report measures of depressive symptoms, anxiety, optimism, and gratitude; and blood samples were collected for measurement of biomarkers reflecting inflammation, endothelial function, and myocardial strain. Generalized estimating equations and linear regression analyses were performed to examine concurrent and prospective relationships between psychological constructs and biomarkers. Results In concurrent analyses, depressive symptoms were associated with elevated markers of inflammation (interleukin-17: β = .047; 95% confidence interval [CI] = .010–.083]), endothelial dysfunction (endothelin-1: β = .020; 95% [CI] = .004–.037]), and myocardial strain (N-terminal pro-B-type natriuretic peptide: β = .045; 95% [CI] = .008–.083]), independent of age, sex, medical variables, and anxiety, whereas anxiety was not associated with these markers in multivariable adjusted models. Optimism and gratitude were associated with lower levels of markers of endothelial dysfunction (endothelin-1: gratitude: β = −.009; 95% [CI] = −.017 to − .001]; optimism: β = −.009; 95% [CI] = −.016 to − .001]; soluble intercellular adhesion molecule-1: gratitude: β = −.007; 95% [CI] = −.014 to − .000]), independent of depressive and anxiety symptoms. Psychological constructs at 2 weeks were not prospectively associated with biomarkers at 6 months. Conclusions Depressive symptoms were associated with more inflammation, myocardial strain, and endothelial dysfunction in the 6 months after ACS, whereas positive psychological constructs were linked to better endothelial function. Larger prospective studies may clarify the directionality of these relationships. Clinical Trial Registration Clinicaltrials.gov identifier NCT01709669 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Psychosomatic Medicine Wolters Kluwer Health

Associations Between Psychological Constructs and Cardiac Biomarkers After Acute Coronary Syndrome

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References (56)

Publisher
Wolters Kluwer Health
Copyright
Copyright © 2016 by the American Psychosomatic Society
ISSN
0033-3174
eISSN
1534-7796
DOI
10.1097/PSY.0000000000000404
pmid
27749683
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT Objective Psychological constructs are associated with cardiovascular health, but the biological mechanisms mediating these relationships are unknown. We examined relationships between psychological constructs and markers of inflammation, endothelial function, and myocardial strain in a cohort of post–acute coronary syndrome (ACS) patients. Methods Participants (N = 164) attended study visits 2 weeks and 6 months after ACS. During these visits, they completed self-report measures of depressive symptoms, anxiety, optimism, and gratitude; and blood samples were collected for measurement of biomarkers reflecting inflammation, endothelial function, and myocardial strain. Generalized estimating equations and linear regression analyses were performed to examine concurrent and prospective relationships between psychological constructs and biomarkers. Results In concurrent analyses, depressive symptoms were associated with elevated markers of inflammation (interleukin-17: β = .047; 95% confidence interval [CI] = .010–.083]), endothelial dysfunction (endothelin-1: β = .020; 95% [CI] = .004–.037]), and myocardial strain (N-terminal pro-B-type natriuretic peptide: β = .045; 95% [CI] = .008–.083]), independent of age, sex, medical variables, and anxiety, whereas anxiety was not associated with these markers in multivariable adjusted models. Optimism and gratitude were associated with lower levels of markers of endothelial dysfunction (endothelin-1: gratitude: β = −.009; 95% [CI] = −.017 to − .001]; optimism: β = −.009; 95% [CI] = −.016 to − .001]; soluble intercellular adhesion molecule-1: gratitude: β = −.007; 95% [CI] = −.014 to − .000]), independent of depressive and anxiety symptoms. Psychological constructs at 2 weeks were not prospectively associated with biomarkers at 6 months. Conclusions Depressive symptoms were associated with more inflammation, myocardial strain, and endothelial dysfunction in the 6 months after ACS, whereas positive psychological constructs were linked to better endothelial function. Larger prospective studies may clarify the directionality of these relationships. Clinical Trial Registration Clinicaltrials.gov identifier NCT01709669

Journal

Psychosomatic Medicine – Wolters Kluwer Health

Published: Jan 1, 2017

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