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Serum osteoprotegerin is associated with vascular stiffness and the onset of new cardiovascular events in hemodialysis patients

Title
Serum osteoprotegerin is associated with vascular stiffness and the onset of new cardiovascular events in hemodialysis patients
Authors
Jung Eun Lee;Hyung Jong Kim;Hyeong Cheon Park;Sung Kyu Ha;Gi Young Yun;Seung Kyu Kim;Jwa-Kyung Kim;Ji Sun Nam;Sung Jin Moon
Issue Date
2013
Journal Title
Korean Journal of Internal Medicine
ISSN
1226-3303
Citation
Korean Journal of Internal Medicine, Vol.28(6) : 668~677, 2013
Abstract
BACKGROUND/AIMS: Osteoprotegerin (OPG) and fetuin-A are vascular calcification regulators that may be related to high cardiovascular (CV) mortality in hemodialysis (HD) patients. We evaluated the relationship between OPG, fetuin-A, and pulse wave velocity (PWV), a marker of vascular stiffness, and determined whether OPG and fetuin-A were independent predictors of CV events in HD patients. METHODS: We conducted a prospective observational study in 97 HD patients. OPG and fetuin-A were measured at baseline and arterial stiffness was evaluated by PWV. All patients were stratified into tertiles according to serum OPG levels. RESULTS: A significant trend was observed across increasing serum OPG concentration tertiles for age, HD duration, systolic blood pressure, cholesterol, triglycerides, and PWV. Multiple linear regression analysis revealed that diabetes (β = 0.430, p = 0.000) and OPG levels (β = 0.308, p = 0.003) were independently associated with PWV. The frequency of new CV events was significantly higher in the upper OPG tertiles compared with those in the lower OPG tertiles. In Cox proportional hazards analysis, upper tertiles of OPG levels were significantly associated with CV events (hazard ratio = 4.536, p = 0.011). CONCLUSIONS: Serum OPG, but not fetuin-A, levels were closely associated with increased vascular stiffness, and higher OPG levels may be independent predictors of new CV events in HD patients.
URI

http://ir.ymlib.yonsei.ac.kr/handle/22282913/88715
DOI
10.3904/kjim.2013.28.6.668
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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