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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-23652

Redwine, L S; Wirtz, P H; Hong, S; Pandzic, I; Cammarata, S; Tafur, J; Carter, S M; Greenberg, B; Mills, P J (2009). A potential shift from adaptive immune activity to nonspecific inflammatory activation associated with higher depression symptoms in chronic heart failure patients. Journal of Cardiac Failure, 15(7):607-615.

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Abstract

BACKGROUND: Chronic heart failure (CHF) patients with elevated depression symptoms are at greater risk of morbidity and mortality. The mechanisms linking symptoms of depression with disease progression in CHF are unclear. However, research studies have found evidence of alterations in immune activity associated with depression symptoms that may influence heart function. The present study sought to determine the relationship between depression symptoms and chemotaxis of peripheral blood mononuclear cells (PBMCs) in CHF patients, both at rest and in response to moderate exercise. METHODS AND RESULTS: Sixty-five patients diagnosed with CHF (mean age, 59.8 +/- 14.5 years) and 45 non-CHF control subjects (mean age, 52.1 +/- 11.6) completed the Beck Depression Inventory (BDI) before undergoing a moderate 20-minute bicycle exercise task. Chemotaxis of PBMCs was examined in vitro to a bacterial peptide f-met leu phe (fMLP) and a physiologic chemokine, stromal cell derived factor-1 (SDF-1) immediately before and after exercise. CHF patients had reduced chemotaxis to SDF-1 (P = .025) compared with non-CHF subjects. Higher BDI scores were associated with reduced baseline chemotaxis to SDF-1 in both CHF and non-CHF subjects (P = .027). In contrast, higher BDI scores were associated with increased chemotaxis to fMLP (P = .049) and SDF-1 (P = .018) in response to exercise in the CHF patients. CONCLUSION: The present study suggests a shift in immune cell mobility in CHF patients with greater depression symptom severity, with reduced chemotaxis to a physiologically specific chemokine at rest but increased chemotaxis to both nonspecific and specific chemical attractants in response to physical activity. This could have implications for cardiac repair and remodeling in CHF patients and therefore may affect disease progression.

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
DDC:150 Psychology
Uncontrolled Keywords:Immune dysregulation, heart failure, depression
Language:English
Date:September 2009
Deposited On:13 Nov 2009 06:13
Last Modified:27 Nov 2013 21:42
Publisher:Elsevier
ISSN:1071-9164
Funders:Swiss National Foundation IZKOBO-122843/1 (to PHW)
Publisher DOI:10.1016/j.cardfail.2009.01.011
PubMed ID:19700138
Citations:Web of Science®. Times Cited: 3
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Scopus®. Citation Count: 4

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