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Structural and biochemical characteristics of arterial stiffness in patients with atherosclerosis and in healthy subjects.
MedLine Citation:
PMID:  22739422     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Arterial stiffness is an independent predictor of vascular morbidity and mortality in patients with atherosclerosis. Angiographic score (ASc) reflects severity of atherosclerosis in patients with peripheral arterial disease (PAD). Osteopontin (OPN) and oxidized low-density lipoprotein (oxLDL) are involved in the pathogenesis of atherosclerosis. The aim of the present study was to evaluate the association between arterial stiffness, ASc, serum OPN and oxLDL in patients with symptomatic PAD, and in clinically healthy subjects. We studied 79 men with symptomatic PAD (mean age 64±7 years) and 84 healthy men (mean age 63±8 years). Calculation of the ASc was based on severity and location of atherosclerotic lesions in the arteries of the lower extremities. Aortic pulse wave velocity (aPWV) was evaluated by applanation tonometry using the Sphygmocor device. Serum OPN and oxLDL levels were determined by enzyme-linked immunosorbent assay. The aPWV (10±2.4 VS. 8.4±1.7 (m s(-1)); P<0.001), OPN (75 (62.3-85.8) VS. 54.8 (47.7-67.9) (ng ml(-1)); P<0.001) and oxLDL (67 (52.5-93.5) VS. 47.5 (37-65.5); P<0.001) were different for the patients and for the controls. In multiple regression models, aPWV was independently determined by ASc, log-OPN, log-oxLDL and estimated glomerular filtration rate in the patients (R(2)=0.44; P<0.001) and by log-OPN, log-oxLDL, age and heart rate in the controls (R(2)=0.38; P<0.001). The independent relationship of a PWV with serum levels of OPN and oxLDL in the patients with PAD and in the controls indicates that OPN and oxLDL might influence arterial stiffening in patients with atherosclerosis and in clinically healthy subjects.Hypertension Research advance online publication, 28 June 2012; doi:10.1038/hr.2012.88.
Authors:
Maksim Zagura; Jaak Kals; Martin Serg; Priit Kampus; Mihkel Zilmer; Meelis Jakobson; Eve Unt; Jüri Lieberg; Jaan Eha
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-28
Journal Detail:
Title:  Hypertension research : official journal of the Japanese Society of Hypertension     Volume:  -     ISSN:  1348-4214     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9307690     Medline TA:  Hypertens Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1] Department of Biochemistry, Centre of Excellence for Translational Medicine, University of Tartu, Tartu, Estonia [2] Endothelial Centre, University of Tartu, Tartu, Estonia.
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