TY - BOOK AU - Howard, Barbara V TI - Impact of biological aging on arterial aging in American Indians: findings from the Strong Heart Family Study SN - 1945-4589 PY - 2016/// KW - *Aging/ph [Physiology] KW - *Models, Cardiovascular KW - *Telomere Homeostasis/ph [Physiology] KW - *Vascular Stiffness/ph [Physiology] KW - Adolescent KW - Adult KW - Age Factors KW - Aged KW - Aged, 80 and over KW - Alcohol Drinking KW - Biomarkers KW - Blood Glucose/an [Analysis] KW - Blood Pressure/ph [Physiology] KW - Body Mass Index KW - Cross-Sectional Studies KW - Exercise KW - Female KW - Humans KW - Indians, North American KW - Leukocytes/me [Metabolism] KW - Life Style KW - Lipids/bl [Blood] KW - Male KW - Middle Aged KW - Risk Factors KW - Sex Factors KW - Smoking KW - Young Adult KW - MedStar Health Research Institute KW - Journal Article N2 - Telomere length, a marker of biological aging, has been associated with cardiovascular disease (CVD). Increased arterial stiffness, an indicator of arterial aging, predicts adverse CVD outcomes. However, the relationship between telomere length and arterial stiffness is less well studied. Here we examined the cross-sectional association between leukocyte telomere length (LTL) and arterial stiffness in 2,165 American Indians in the Strong Heart Family Study (SHFS). LTL was measured by qPCR. Arterial stiffness was assessed by stiffness index beta. The association between LTL and arterial stiffness was assessed by generalized estimating equation model, adjusting for sociodemographics (age, sex, education level), study site, metabolic factors (fasting glucose, lipids, systolic blood pressure, and kidney function), lifestyle (BMI, smoking, drinking, and physical activity), and prevalent CVD. Results showed that longer LTL was significantly associated with a decreased arterial stiffness (beta=-0.070, P=0.007). This association did not attenuate after further adjustment for hsCRP (beta=-0.071, P=0.005) or excluding participants with overt CVD (beta=-0.068, P=0.012), diabetes (beta=-0.070, P=0.005), or chronic kidney disease (beta=-0.090, P=0.001). In summary, shorter LTL was significantly associated with an increased arterial stiffness, independent of known risk factors. This finding may shed light on the potential role of biological aging in arterial aging in American Indians UR - https://dx.doi.org/10.18632/aging.101013 ER -