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Heritable and nutritional influences on bone mineral mass
S Ferrari1, R Rizzoli, J P Bonjour
1WHO Collaborating Center for Osteoporosis and Bone Diseases, Department of Internal Medicine, University Hospital, Geneva, Switzerland.
Aging (Milan, Italy)
|November 5, 1998
Summary
Peak bone mass is influenced by genetics and environment. Interactions between vitamin D receptor gene variations and dietary calcium offer new insights into osteoporosis development.
Area of Science:
- Bone Biology
- Molecular Epidemiology
- Nutritional Science
Background:
- Osteoporosis results from peak bone mass minus bone loss.
- Peak bone mass is determined by heritable and environmental factors from childhood.
Purpose of the Study:
- To explore the role of specific molecular markers in osteoporosis.
- To investigate the influence of gene-environment interactions on bone mineral density.
Main Methods:
- Analysis of vitamin D receptor gene polymorphisms (Bsm 1, Fok 1).
- Examination of interactions between VDR gene polymorphisms and dietary calcium intake.
Main Results:
- Specific VDR gene polymorphisms (Bsm 1, Fok 1) have limitations in explaining bone density differences.
- Interactions between VDR gene polymorphisms and dietary calcium provide significant insights into bone mass determination.
Conclusions:
- Genetic factors, like VDR gene variations, interact with environmental factors, such as calcium intake, to influence bone mineral mass.
- Understanding these interactions is crucial for comprehending osteoporosis etiology.