Resorption markers

Formation markers

Serum C-terminal telopeptide type-I collagen (s-CTX)

Osteocalcin (OC)

Urinary N-telopeptide (NTX)

bone-specific alkaline phosphatise (BSAP)

Deoxypyridinoline (free and total)

N-terminal and C-terminal pro-peptides of type I procollagen (P1NP, P1CP)