Calcitonin injections have no effect on vertebral bone density...it is anticipated when doing the experiment that there would be...but there is not. (Marieb)
Calcitonin is a hormone that has been used as an injection for many years. A new version is on the market as a nasal spray. It too slows down bone-eating osteoclasts.
If the rat ovariectomized, the rate probably has osteoporosis (T score of -2.5 or less). Assuming this is a bone density test, the injection of estrogen will increase bone density, bringing its T...