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Am J Hypertens. 2013 Feb;26(2):159-62. doi: 10.1093/ajh/hps032. Epub 2012 Dec 28.

Interleukin-12 is associated with arterial stiffness in healthy individuals.

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  • 1Department of Renal Medicine, Sir Charles Gairdner Hospital, Perth, Australia.



Atherosclerotic cardiovascular disease (CVD) is a chronic inflammatory disease mediated by the proinflammatory cytokines interleukin-12 (IL-12) and interleukin-18 (IL-18). Evidence suggests that IL-12 is dominant in early atherosclerosis, while IL-18 is critical in advanced atherosclerosis. In this study, we explore the association between IL-12 and IL-18 and arterial stiffness in healthy individuals.


We performed a cross-sectional study examining pulse wave velocity (PWV), augmentation index (AIx), IL-12, and IL-18 in healthy individuals (N = 53) without CVD risk factors.


In multivariate regression, age (P < 0.01), systolic blood pressure (P = 0.05), and IL-12 (P < 0.01) were positively associated with PWV, and high-density lipoprotein (P = 0.04) was negatively associated with PWV (model R (2) = 0.476, P < 0.01).


IL-12, but not IL-18, is associated with PWV in healthy individuals without clinical CVD, supporting a role for IL-12 in early atherosclerosis as suggested by animal studies.

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