Objective To discuss the mechanism of age-related the osteoblast and osteoclast differentiation from marrow cells and discuss the mechanism of agedbone loosing disease.
目的从骨髓细胞分化角度研究年龄相关的成骨和破骨细胞分化的机理，探讨老年性骨质疏松症的发生机理。
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The most surprising finding for Clemens's team: as the modified mice aged they became overweight even though they were losing bone and not eating more than the controls.
One study in the New England Journal of Medicine shows that after three years, those patients aged over 65 taking supplements had better bone health than other over-65s.