FKBP5 and osteoporosis: To explore the relationship between FKBP5 and senile osteoporosis, we specifically deleted FKBP5 in BMSCs by interbreeding FKBP5flox/flox mice with Prx1‐cre transgenic mice, resulting in FKBP5 conditional knockout (FKBP5 CKO) mice.