Correlates of osteoprotegerin and association with aortic pulse wave velocity in patients with chronic kidney disease.
Clin J Am Soc Nephrol
; 6(11): 2612-9, 2011 Nov.
Article
em En
| MEDLINE
| ID: mdl-21940840
ABSTRACT
BACKGROUND AND OBJECTIVES:
Osteoprotegerin (OPG), a cytokine that regulates bone resorption, has been implicated in the process of vascular calcification and stiffness. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Serum OPG was measured in 351 participants with chronic kidney disease (CKD) from one site of the Chronic Renal Insufficiency Cohort Study. Cortical bone mineral content (BMC) was measured by quantitative computed tomography in the tibia. Multivariable linear regression was used to test the association between serum OPG and traditional cardiovascular risk factors, measures of abnormal bone and mineral metabolism, and pulse wave velocity.RESULTS:
Higher serum OPG levels were associated with older age, female gender, greater systolic BP, lower estimated GFR, and lower serum albumin. OPG was not associated with measures of abnormal bone or mineral metabolism including serum phosphorus, albumin-corrected serum calcium, intact parathyroid hormone, bone-specific alkaline phosphatase, or cortical BMC. Among 226 participants with concurrent aortic pulse wave velocity measurements, increasing tertiles of serum OPG were associated with higher aortic pulse wave velocity after adjustment for demographics, traditional vascular risk factors, and nontraditional risk factors such as estimated GFR, albuminuria, serum phosphate, corrected serum calcium, presence of secondary hyperparathyroidism, serum albumin, and C-reactive protein or after additional adjustment for cortical BMC in a subset (n = 161).CONCLUSIONS:
These data support a strong relationship between serum OPG and arterial stiffness independent of many potential confounders including traditional cardiovascular risk factors, abnormal bone and mineral metabolism, and inflammation.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Aorta
/
Fluxo Pulsátil
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Doenças Cardiovasculares
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Osteoprotegerina
/
Nefropatias
Tipo de estudo:
Clinical_trials
/
Etiology_studies
/
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
/
Middle aged
País como assunto:
America do norte
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article