TY - JOUR CY - Oxford ID - publications48401 UR - http://tse-fr.eu/pub/128726 IS - n° 1 A1 - Trumble, Benjamin C. A1 - Negrey, Jacob A1 - Koebele, Stephanie A1 - Thompson, Randall C. A1 - Wann, L. Samuel A1 - Allam, Adel H. A1 - Beheim, Bret A. A1 - Sutherland, Linda A1 - Sutherland, James A1 - Eid Rodriguez, Daniel A1 - Michalik, David E. A1 - Rowan, Christophe J. A1 - Lombardi, Guido A1 - Garcia, Angela A1 - Cummings, Daniel A1 - Seabright, Edmond A1 - Alami, Sarah A1 - Kraft, Thomas S. A1 - Hooper, Paul L. A1 - Buetow, Kenneth A1 - Irimia, Andrei A1 - Gatz, Margaret A1 - Stieglitz, Jonathan A1 - Gurven, Michael A1 - Kaplan, Hillard A1 - Thomas, Gregory N2 - In industrialized populations low male testosterone is associated with higher rates of cardiovascular mortality. However, coronary risk factors like obesity impact both testosterone and cardiovascular outcomes. Here we assess the role of endogenous testosterone on coronary artery calcium in an active subsistence population with relatively low testosterone levels, low cardiovascular risk, and low coronary artery calcium scores. In this cross-sectional community-based study, 719 Tsimane forager-horticulturalists in the Bolivian Amazon aged 40+ years underwent computed tomography (49.8% male, mean age 57.6 years). Coronary artery calcium levels were low; 84.5% had no coronary artery calcium. Zero inflated negative binomial models found testosterone was positively associated with coronary artery calcium for the full sample (IRR= 1.477, 95% CI 1.001-2.170, p=0.031), and in a male-only subset (IRR=1.532, 95% CI 0.993-2.360, p=0.053). Testosterone was also positively associated with clinically relevant coronary atherosclerosis (calcium >100 Agatston units) in the full sample (OR = 1.984, 95% CI 1.202-3.275, p=0.007) and when limited to male only sample (OR= 2.032, 95% CI 1.118-4.816, p=0.024). Individuals with coronary artery calcium >100 had 20% higher levels of testosterone than those with calcium <100 (t=-3.201, p=0.007). Among Tsimane, testosterone is positively associated with coronary artery calcium despite generally low normal testosterone levels, minimal atherosclerosis and rare cardiovascular disease events. Associations between low testosterone and CVD events in industrialized populations are likely confounded by obesity and other lifestyle factors. VL - vol. 11 TI - Testosterone is positively associated with coronary artery calcium in a low cardiovascular disease risk population AV - none EP - 484 Y1 - 2023/11// PB - Oxford University Press JF - Evolution, Medicine, and Public Health KW - Testosterone KW - Cardiovascular disease KW - Evolutionary mismatch KW - Coronary artery calcium SN - 2050-6201 SP - 472 ER -