Significance of serum glucagon-like peptide-1 and matrix Gla protein levels in patients with diabetes and osteoporosis

Table 5 Correlation between serum glucagon-like peptide-1, matrix Gla protein levels, and bone metabolism marker levels

Index	Relativity	BALP (μg/mL)	P1NP (ng/mL)	BGP (μgmL)	β-CTX (ng/mL)
GLP-1 (pmol/L)	r	0.192	-0.401	-0.386	-0.377
	P value	0.163	0.000	0.003	0.005
MGP (nmol/L)	r	0.155	-0.421	-0.419	-0.351
	P value	0.227	0.000	0.000	0.010

GLP-1: Glucagon-like peptide-1; MGP: Matrix Gla protein; BALP: Bone alkaline phosphatase; P1NP: Type 1 procollagen amino-terminal propeptide; BGP: Osteocalcin; β-CTX: Special sequence of carboxy-terminal peptide β of type 1 collagen.