Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Serum was collected from baseline control (non-loaded) mice of four different ages, and indices of bone turnover were measured by ELISA. (a) Osteocalcin, a marker of bone formation, and (b) carboxyl-terminal collagen cross-links (CTX), a marker of bone resorption, declined significantly with age. (n = 8; mean ± SD; a,b: groups with no common letters are significantly different, p<0.05).
