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Metabolism
Article
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Metabolism
Article . 2010 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Enhanced neutrophil expression of annexin-1 in coronary artery disease

Authors: Särndahl, Eva; Bergström, Ida; Nijm, Johnny; Forslund, Tony; Perretti, Mauro; Jonasson, Lena;

Enhanced neutrophil expression of annexin-1 in coronary artery disease

Abstract

The systemic inflammatory activity in patients with stable coronary artery disease (CAD) is associated with a dysregulated cortisol response. Moreover, an aberrant activation status of neutrophils in CAD has been discussed; and the question of glucocorticoid resistance has been raised. The anti-inflammatory actions of glucocorticoids are mediated by annexin-1 (ANXA1). We investigated the expression of glucocorticoid receptors (GR) and ANXA1, as well as the exogenous effects of ANXA1 on neutrophils in CAD patients and related the data to diurnal salivary cortisol. Salivary cortisol levels were measured in the morning and evening during 3 consecutive days in 30 CAD patients and 30 healthy individuals. The neutrophil expression of GR and ANXA1 was determined by flow cytometry. The effect of exogenous ANXA1 was determined in a neutrophil stimulation assay. The patients showed a flattened diurnal cortisol pattern compared with healthy subjects, involving higher levels in the evening. The neutrophil expression of GR-total and GR-alpha was decreased, whereas the GR-beta expression did not differ compared with controls. The neutrophil expression of ANXA1 was significantly increased in patients. Ex vivo, ANXA1 impaired the leukotriene B(4)-induced neutrophil production of reactive oxygen species in patients but not in controls. Our findings indicate a persistent overactivation of the hypothalamic-pituitary-adrenal axis in CAD patients but do not give any evidence for glucocorticoid resistance, as assessed by the neutrophil expression of GR and ANXA1. The altered neutrophil phenotype in CAD may thus represent a long-term response to disease-related activation.

Country
Sweden
Keywords

Male, Medicin och hälsovetenskap, annexin-1, Hydrocortisone, Neutrophils, Coronary Artery Disease, cortisol, Coronary artery disease, Medical and Health Sciences, Leukotriene B4, Receptors, Glucocorticoid, glucocorticoid receptor, Humans, Receptors, Lipoxin, Glucocorticoids, Aged, Annexin A1, Angiography, neutrophil, Middle Aged, Flow Cytometry, Receptors, Formyl Peptide, Circadian Rhythm, Phenotype, CD18 Antigens, Female, Reactive Oxygen Species

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    13
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Average
Top 10%
Green
bronze