Brain-type creatine kinase has a crucial role in osteoclast-mediated bone resorption

Brain-type creatine kinase (Ckb) has an unexpected role in bone biology. Decreasing its activity suppresses the bone-resorbing activity of osteoclasts, and mice lacking Ckb are protected from osteoporosis-inducing treatments. These findings identify Ckb as a new molecular against bone loss.