Journal
ATHEROSCLEROSIS
Volume 193, Issue 2, Pages 389-394Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.atherosclerosis.2006.07.003
Keywords
leukotriene B-4; cysteinyl-leukotrienes; lipoxygenase; inflammation; carotid artery
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Recent studies indicate that periodontal disease is associated with the development of early atherosclerotic lesions in the carotid artery. Since inflammation is a key feature in both atherosclerosis and periodontal disease, a common mediator of the two diseases Could be anticipated. Leukotrienes are lipid-derived inflammatory mediators recently implicated in the pathogenesis of atherosclerosis and previously shown to be produced in periodontitis. The aim of the present study was to detect leukotrienes in gingival crevicular fluid (GCF) from subjects with atherosclerosis. Carotid ultrasonography and oral clinical examination were performed in 19 periodontitis patients and 16 healthy subjects. Atherosclerotic plaques were detected on ultrasound examination in 13 subjects with periodontits, and in 5 of the healthy subjects. Elevated concentrations of leukotriene B-4 and cysteinyl-leukotrienes were detected in GCF from subjects with a high dental plaque index (PLI > 0.3), supporting an increased leukotriene formation in periodontitis. In addition, subjects with atherosclerotic plaques had significantly elevated concentrations of cysteinyl-leukotrienes in their GCF as compared with subjects without a visible plaque. Finally, the increased cysteinyl-leukotriene concentrations in GCF from atherosclerotic subjects were observed also when sub groups of periodontis patients and healthy subjects were compared separately. In summary, increased GCF concentrations of cysteinyl-leukotrienes were correlated to measures of both periodontitis and atherosclerosis. These results suggest that increased leukotriene formation may represent a possible link between periodontitis and atherosclerosis and a risk factor marker for both diseases. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
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