Abstract:Objective To explore the effect of changes in serum levels of albumin (ALB) and hemoglobin (Hb) on bone turnover markers in patients with postmenopausal osteoporosis.Methods A total of 92 patients with postmenopausal osteoporosis admitted to our hospital from June 2019 to June 2021 were selected as the study group, and 85 postmenopausal women without osteoporosis who came to the hospital for health checkup during the same period were selected as the control group. The serum levels of ALB, Hb, N-terminal/mid-fragment osteocalcin (N-MID), β-isomerized C-terminal telopeptide (β-CTX), and tartrate-resistant acid phosphatase 5b (TRAP-5b) were compared between the two groups and among postmenopausal osteoporosis patients with different serum levels of ALB and Hb. Pearson method was used to analyze the relationship between serum levels of ALB and Hb and those of N-MID, β-CTX and TRAP-5b, while multiple linear regression was used to analyze the effects of changes in serum levels of ALB and Hb on those of N-MID, β-CTX, and TRAP-5b in patients with postmenopausal osteoporosis.Results The serum levels of ALB and Hb in the study group were lower than those in the control group (P < 0.05), and serum levels of N-MID, β-CTX, and TRAP-5b in the study group were higher than those in the control group (P < 0.05). The levels of N-MID, β-CTX and TRAP-5b in postmenopausal osteoporosis patients with ALB < 38.37 g/L were higher than those in postmenopausal osteoporosis patients with ALB ≥ 38.37 g/L (P < 0.05), and the levels of β-CTX and TRAP-5b in postmenopausal osteoporosis patients with Hb < 125.72 g/L were higher than those in postmenopausal osteoporosis patients with Hb ≥ 125.72 g/L (P < 0.05). Pearson correlation analysis showed that serum levels of ALB and Hb were negatively correlated with β-CTX (r = -0.324 and -0.387, P = 0.011 and 0.003) and TRAP-5b (r =-0.306 and -0.415, P = 0.028 and 0.000) in postmenopausal osteoporosis patients. Multiple linear regression analysis revealed that the serum levels of β-CTX/TRAP-5b in patients with postmenopausal osteoporosis were affected by the serum levels of ALB and Hb (P < 0.05).Conclusions Changes in serum levels of ALB and Hb can affect the serum levels of β-CTX and TRAP-5b in patients with postmenopausal osteoporosis, and they could thus be established as specific indicators for monitoring the bone metabolism.