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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-9946

Payeli, S K; Latini, R; Gebhard, K; Patrignani, A; Wagner, U; Lüscher, T F; Tanner, F C (2008). Prothrombotic gene expression profile in vascular smooth muscle cells of human saphenous vein, but not internal mammary artery. Arteriosclerosis, Thrombosis and Vascular Biology, 28(4):705-710.

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BACKGROUND: In patients with coronary artery disease and reduced ejection fraction, amiodarone reduces mortality by decreasing sudden death. Because the latter may be triggered by coronary artery thrombosis as much as ventricular arrhythmias, amiodarone might interfere with tissue factor (TF) expression and thrombus formation. METHODS AND RESULTS: Clinically relevant plasma concentrations of amiodarone reduced TF activity and impaired carotid artery thrombus formation in a mouse photochemical injury model in vivo. PTT, aPTT, and tail bleeding time were not affected; platelet number was slightly decreased. In human endothelial and vascular smooth muscle cells, amiodarone inhibited tumor necrosis factor (TNF)-alpha and thrombin-induced TF expression as well as surface activity. Amiodarone lacking iodine and the main metabolite of amiodarone, N-monodesethylamiodarone, inhibited TF expression. Amiodarone did not affect mitogen-activated protein kinase activation, TF mRNA expression, and TF protein degradation. Metabolic labeling confirmed that amiodarone inhibited TF protein translation. CONCLUSIONS: Amiodarone impairs thrombus formation in vivo; in line with this, it inhibits TF protein expression and surface activity in human vascular cells. These pleiotropic actions occur within the range of amiodarone concentrations measured in patients, and thus may account at least in part for its beneficial effects in patients with coronary artery disease.


16 citations in Web of Science®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Functional Genomics Center Zurich
04 Faculty of Medicine > Center for Integrative Human Physiology
04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiology
04 Faculty of Medicine > Institute of Physiology
07 Faculty of Science > Institute of Physiology

08 University Research Priority Programs > Systems Biology / Functional Genomics
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Date:February 2008
Deposited On:09 Jan 2009 12:32
Last Modified:05 Apr 2016 12:48
Publisher:Lippincott Wiliams & Wilkins
Publisher DOI:10.1161/ATVBAHA.107.155333
PubMed ID:18258816

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