Preliminary study on the relationship between osteoporosis and trace elements with rat models

Thirty rats were divided randomly into five groups and fed with different f eeds. They were killed after 2 mo. Right thighs of these rats were taken as samples. Bone mineral densities of these samples were measured by the doub le-energy x-ray bone mineral densitometer, and trace elements contents of t he samples were analyzed by neutron activation analysis. Results of the exp eriments showed that some elements were well correlated with others, and th ere were obvious variances between some elements of the normal group and th ose of other four groups.