Heritability and Genetic Correlations for Bone Microarchitecture: The Framingham Study Families

Autor: Kerry E Broe, Yanhua Zhou, Mary L. Bouxsein, Douglas P. Kiel, Serkalem Demissie, Darlene Lu, David Karasik, L. Adrienne Cupples
Rok vydání: 2016
Předmět:
Zdroj: Journal of Bone and Mineral Research. 32:106-114
ISSN: 0884-0431
Popis: High-resolution peripheral quantitative computed tomography (HR-pQCT) measures bone microarchitecture and volumetric bone mineral density (vBMD), important risk factors for osteoporotic fractures. We estimated the heritability (h2 ) of bone microstructure indices and vBMD, measured by HR-pQCT, and genetic correlations (ρG ) among them and between them and regional aBMD measured by dual-energy X-ray absorptiometry (DXA), in adult relatives from the Framingham Heart Study. Cortical (Ct) and trabecular (Tb) traits were measured at the distal radius and tibia in up to 1047 participants, and ultradistal radius (UD) aBMD was obtained by DXA. Heritability estimates, adjusted for age, sex, and estrogenic status (in women), ranged from 19.3% (trabecular number) to 82.8% (p
Databáze: OpenAIRE