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Association between circulating Galectin-3 and arterial stiffness in older adults.

Jia X, Sun C, Tanaka H, Al Rifai M, Aguilar D, Ndumele C, Selvin E, Virani SS, Hoogeveen RC, Heiss G, Ballantyne CM, Nambi V. Association between circulating Galectin-3 and arterial stiffness in older adults. VASA. Zeitschrift fur Gefasskrankheiten. 2021 Nov 1; 50(6):439-445.

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Galectin-3 (gal-3) is a ß-galactoside-binding lectin associated tissue fibrosis and inflammation. There is limited understanding of the relationship between gal-3 and vascular health. Our aim was to assess the association between gal-3 and arterial stiffness in older adults. We conducted a cross-sectional study of 4275 participants (mean age of 75 years) from the Atherosclerosis Risk in Communities (ARIC) Study. Central arterial stiffness was measured by carotid-femoral pulse wave velocity (cfPWV). We evaluated the association of gal-3 with cfPWV using multivariable linear regression. The median (interquartile range) gal-3 concentration was 16.5 (13.8, 19.8) ng/mL and mean cfPWV was 1163±303 cm/s. Higher gal-3 concentration was associated with greater central arterial stiffness after adjustment for age, sex, race-center, heart rate, systolic blood pressure, anti-hypertensive medication use, and current smoking status (ß = 36.4 cm/s change in cfPWV per log unit change in gal-3; 95% CI: 7.2, 65.5, p = 0.015). The association was attenuated after adjusting for additional cardiovascular risk factors (ß = 17.3, 95% CI: -14.4, 49.0). In community-dwelling older adults, gal-3 concentration was associated with central arterial stiffness, likely sharing common pathways with traditional cardiovascular risk factors.

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