Bones are constantly undergoing a process called bone remodeling, which is the process where osteoclasts (a type of bone cell) chew away at old bone and osteoblasts (another type of bone cell). Biological sciences Professor Julia Oxford, Ph.D, is heading a research team to investigate the details of this process at the molecular level, hopefully leading to drug therapies that can help reverse or prevent bone density loss, like when astronauts come back to Earth. After all, this bone remodeling is effected by outside forces — namely, gravity.
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