Osteoporosis
AUTHORS : Zheleznova N.E.
RELEVANT UNIVERSITIES : “Eliseeva Methodological Center”, Moscow, Russia
YEAR : 2005
Definition Osteoporosis refers to generalized, progressive bone loss. This reduces both the elasticity and stability of the bone, and even with a
slight mechanical load or fall, bone fractures can occur. Synonyms: bone atrophy. The activity of osteoblasts and osteoclasts is controlled by parathyroid
hormones (PTH), calcitonin, vitamin D, estrogen, testosterone, interleukins. The inhibitory effect on osteoclasts is exerted by ovarian estrogens and
thyroid calcitonin. PTH of the parathyroid glands enhances the activity of
osteoclasts.
