Background/aims: Atherosclerosis and its related complications are the leading causes of death in the hemodialysis (HD) population. Aortic calcification index (ACI), intima-media thickness (IMT) in common carotid arteries, and electrocardiogram (ECG) are atherosclerotic parameters that are available in usual clinical outpatient settings. Macrophage colony-stimulating factor (MCSF) and monocyte chemoattractant protein-1 (MCP-1) play important roles in atherosclerosis.
Methods: We performed a cross-sectional study of 133 outpatients on maintenance HD in a single HD outpatient center. We measured serum levels of MCSF and MCP-1, determined the ACI using computed tomography scan and the IMT using high-sensitivity ultrasound B-mode imaging, and performed ECGs.
Results: Stepwise multivariate regression analysis revealed that the MCSF level correlated with age-adjusted mean and maximum IMT (F = 10.811, p = 0.001, and F = 6.784, p = 0.010, respectively) as well as with the diastolic blood pressure. Age and MCSF level (F = 4.866, p = 0.029) were independently related to an increased ACI. High-sensitivity C-reactive protein (hsCRP) was not related to IMT and ACI. The hsCRP level (chi2 = 5.002, p = 0.025) correlated with ECG changes followed by MCSF (chi2 = 3.940, p = 0.047). MCP-1 was not related to the above atherosclerotic parameters.
Conclusion: A head-to-head comparison between MCSF and hsCRP revealed that MCSF was more closely associated with IMT and ACI in HD patients.
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