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Influence of heredity and environment on peak bone density: a parent-offspring study (CROSBI ID 159789)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Cvijetić, Selma ; Colić Barić, Irena ; Šatalić, Zvonimir Influence of heredity and environment on peak bone density: a parent-offspring study // Journal of clinical densitometry, 13 (2010), 3; 301-306. doi: 10.1016/j.jocd.2010.03.003

Podaci o odgovornosti

Cvijetić, Selma ; Colić Barić, Irena ; Šatalić, Zvonimir

engleski

Influence of heredity and environment on peak bone density: a parent-offspring study

The aim of the study was to determine the relative influence of heredity and environment on peak bone density and also to estimate the risk of having low peak bone density if the bone density of parents is low. The study comprised 83 families (48 daughters and 35 sons and their parents). The children were at an age when bone density is at its peak at most skeletal sites (22.2±1.8 girls ; 23.1±1.2 boys). Bone mineral density (BMD ; g/cm2) was determined by dual energy absorptiometry (DXA). Anthropometric measurements, assessment of calcium intake and physical activity were also determined. Heredity accounted for 22-42% of the variation in BMD of the children, depending on the skeletal site. Heritability for cortical BMD of mid-radius was considerably lower than for spinal trabecular BMD. Children whose parents had low BMD (T score < -1) were 1.1 times more likely to inherit low BMD. Child BMD depended significantly on parent BMD and also on physical activity. In our study, heredity accounted for more than environmental factors for the total BMD variation. This influence was lower in the cortical than in the trabecular parts of the skeleton. Optimal environmental factors such as physical activity may influence the risk of inheriting low BMD.

Bone mineral density ; family study ; heredity ; environment ; physical activity

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Podaci o izdanju

13 (3)

2010.

301-306

objavljeno

1094-6950

10.1016/j.jocd.2010.03.003

Povezanost rada

Prehrambena tehnologija

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