期刊
CLINICAL CARDIOLOGY
卷 42, 期 1, 页码 62-68出版社
WILEY
DOI: 10.1002/clc.23105
关键词
galectin-3; myocardial function; rheumatoid arthritis; vascular stiffness
Background Galectin-3 has emerged as a promising novel biomarker of cardiovascular fibrosis in patients with cardiovascular diseases. Hypothesis We investigated whether galectin-3 correlates with markers of vascular fibrosis, subclinical atherosclerosis, and cardiac function in patients with rheumatoid arthritis (RA), a disease accompanied by high cardiovascular risk. Methods RA and non-RA individuals underwent applanation tonometry, carotid ultrasound, and impedance cardiography, to obtain markers of arterial stiffness, subclinical atherosclerosis, and myocardial function, respectively. Cardiovascular risk was estimated from the Framingham Heart Study. Serum levels of galectin-3 were determined by enzyme-linked immunosorbent assay. Results Galectin-3 was elevated in RA patients (n = 85) compared to controls (n = 39), but this difference was no longer significant after adjustment for the presence of cardiovascular comorbidities. In the univariate analysis, galectin-3 significantly correlated with markers of vascular stiffness (including pulse wave velocity, central blood pressure, central and peripheral pulse pressure, and total arterial compliance); atherosclerosis (carotid intima-media thickness); myocardial blood flow (cardiac output, stroke volume) and contractibility (acceleration and velocity index); systemic vascular resistance, and estimated cardiovascular risk. Multivariate analysis models revealed an independent association between galectin-3 and both cardiac output (beta = -0.274, P = 0.039), as well as systemic vascular resistance (beta = 0.266, P = 0.039). Conclusions In a relatively well-controlled cohort of RA patients with low-grade systemic inflammation and long-standing disease, serum galectin-3 might be useful as a marker of cardiac function and cardiovascular fibrosis.
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