Bone mass in axial spondyloarthritis: A literature review

Table 4 Variation of the bone formation and resorption markers

Ref.	Bone formation markers		Bone resorption markers
	bALP	OC	CTX	DPD
Borman et al[53]		Increased
Grisar et al[55]	Increased	Increased	Increased	Increased
Speden et al[7]	Decreased	Decreased		Increased
Sarikaya et al[57]		Decreased		Increased
Lee et al[17]		Normal		Normal
Altindag et al[58]	Increased	Decreased	Increased
Mermerci Başkan et al[25]	Normal
Acebes et al[51]			Normal	Increased

bALP: Bone alkaline phosphatase; OC: Osteocalcin; CTX: C-terminal cross-linking telopeptide of type I collagen; DPD: Deoxypyridinoline.