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During deep-space exploration missions, astronauts will be exposed to abnormal space environments including microgravity and hypomagnetic field (HyMF) that is 10,000 times weaker than geomagnetic field (GMF). It is well known that microgravity in space can induce bone loss; however, it is ill-defined whether HyMF involved in this process. Herein, we aimed to investigate the combined effects of HyMF...
Parathyroid hormone (PTH) and tumor necrosis factorα (TNFα) are bone resorptive agents that upregulate interleukin-6 (IL-6) and RANKL production by osteoblasts. IL-6 mRNA expression induced by PTH is rapid and transient in osteoblasts both in vitro and in vivo. This study found that IL-6 secretion induced by PTH is also rapid and transient. The induction of RANKL mRNA by PTH is also rapid and transient...
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