Marker of bone resorption / Osteoclast marker is:: (A) Alkaline phosphatase, (B) Procollagen 1 N propeptide, (C) C - telopeptide, (D) Osteocalcin
Answer is C. C i.e. C-telopeptideRef: Robbins Pathology, 9th edition, page 1180Explanation:Biochemical Markers of Bone ResorptionAmino and carboxy terminal crosslinking telopeptide of bone collagen.Pyridinoline.Free lysyl-pyridinoline.Tartarate-resistant acid phosphatase (TRAP).Hydroxyproline (not very specific).