Race, Ancestry, and Vitamin D Metabolism: The Multi-Ethnic Study of Atherosclerosis

• Published in: The journal of clinical endocrinology and metabolism Vol. 105; no. 12; pp. 1 - e4350
• Main Authors: Hsu, Simon, Hoofnagle, Andrew N, Gupta, Deepak K, Gutierrez, Orlando M, Peralta, Carmen A, Shea, Steven, Allen, Norrina B, Burke, Gregory, Michos, Erin D, Ix, Joachim H, Siscovick, David, Psaty, Bruce M, Watson, Karol E, Kestenbaum, Bryan, de Boer, Ian H, Robinson-Cohen, Cassianne
• Format: Journal Article
• Language: English
• Published: US Oxford University Press 01.12.2020; Copyright Oxford University Press
• Subjects: 25-Hydroxyvitamin D; Aged; Alfacalcidol; Arteriosclerosis; Atherosclerosis; Atherosclerosis - ethnology; Atherosclerosis - metabolism; Biomarkers - blood; Calcifediol; Calcium (urinary); Clinical s; Cohort Studies; Cross-Sectional Studies; Ethnicity; Ethnicity - statistics & numerical data; Female; Fibroblast growth factors; Genetic aspects; Globulins; Haplotypes; Health aspects; Hispanic people; Homeostasis; Humans; Male; Metabolism; Metabolites; Middle Aged; Mineral metabolism; Minority & ethnic groups; Parathyroid; Parathyroid hormone; Parathyroid Hormone - blood; Phosphorus; Race; Racial Groups - statistics & numerical data; Risk Factors; United States - epidemiology; Vitamin D; Vitamin D - analogs & derivatives; Vitamin D - blood; Vitamin D - metabolism; Vitamin D Deficiency - ethnology; Vitamin D Deficiency - metabolism; Vitamin D-Binding Protein - blood; United States; parathyroid hormone; mineral metabolism; ancestry; race; vitamin d
• ISSN: 0021-972X; 1945-7197; 1945-7197
• DOI: 10.1210/clinem/dgaa612

Abstract Context A comprehensive characterization of racial/ethnic variations in vitamin D metabolism markers may improve our understanding of differences in bone and mineral homeostasis and the risk of vitamin D–related diseases. Objective Describe racial/ethnic differences in vitamin D metabolism markers and their associations with genetic ancestry. Design, Setting, Participants In a cross-sectional study within the Multi-Ethnic Study of Atherosclerosis (MESA), we compared a comprehensive panel of vitamin D metabolism markers across self-reported racial/ethnic groups of Black (N = 1759), White (N = 2507), Chinese (N = 788), and Hispanic (N = 1411). We evaluated associations of proportion African and European ancestry with this panel of markers in Black and Hispanic participants using ancestry informative markers. Latent class analysis evaluated associations between patterns of vitamin D measurements with race/ethnicity. Results Compared with Black participants, White participants had significantly higher serum concentrations of 25-hydroxyvitamin D and fibroblast growth factor-23; lower concentrations of parathyroid hormone and 1,25-dihydroxyvitamin D; circulating vitamin D metabolite ratios suggesting lower CYP27B1 and higher CYP24A1 activity; higher urinary concentrations of calcium and phosphorus with higher urinary fractional excretion of phosphorus; and differences in vitamin D binding globulin haplotypes. Higher percent European ancestry was associated with higher 25-hydroxyvitamin D and lower parathyroid hormone concentrations among Black and Hispanic participants. Latent classes defined by vitamin D measurements reflected these patterns and differed significantly by race/ethnicity and ancestry. Conclusions Markers of vitamin D metabolism vary significantly by race/ethnicity, may serve to maintain bone and mineral homeostasis across ranges of 25-hydroxyvitamin D production, and be attributable, at least partly, to genetic ancestry.