RT Journal Article T1 Population Distributions of Thymic Function in Adults: Variation by Sociodemographic Characteristics and Health Status. A1 Feinstein, Lydia A1 Ferrando-Martínez, Sara A1 Leal, Manuel A1 Zhou, Xuan A1 Sempowski, Gregory D A1 Wildman, Derek E A1 Uddin, Monica A1 Aiello, Allison E AB The thymus is critical for mounting an effective immune response and maintaining health. However, epidemiologic studies characterizing thymic function in the population setting are lacking. Using data from 263 adults in the Detroit Neighborhood Health Study, we examined thymic function as measured by the number of signal joint T-cell receptor excision circles (sjTREC) and assessed associations with established indicators of physiological health. Overall, increasing age and male gender were significantly associated with reduced thymic function. Adjusting for covariates, individuals with elevated levels of the pro-inflammatory biomarkers C-reactive protein (β: -0.50 [95% CI: -0.82, -0.18] for moderate elevation, β: -0.29 [95% CI: -0.59, 0.00] for high elevation) and interleukin-6 (β: -0.60 [95% CI: -0.92, -0.28] for moderate elevation, β: -0.43 [95% CI: -0.77, -0.08] for severe elevation) also had lower thymic function. Compared to individuals with a BMI YR 2016 FD 2016 LK http://hdl.handle.net/10668/10209 UL http://hdl.handle.net/10668/10209 LA en DS RISalud RD Apr 8, 2025