Serum Bone Resorption Markers after Parathyroidectomy for Renal Hyperparathyroidism: Correlation Analyses for the Cross-Linked N-telopeptide of Collagen I and Tartrate-Resistant Acid Phosphatase
Figure 2
Correlations between serum values for the cross-linked N-telopeptide of type I collagen (NTX) and those for other bone biomarkers before and at 2 or 4 weeks following parathyroidectomy for secondary hyperparathyroidism. (a), Correlation with intact parathyroid hormone (iPTH); (b), correlation with tartrate-resistant acid phosphatase 5b (TRAP); (c), correlation with bone-specific alkaline phosphatase (BAP). D0, before surgery; W2, 2 weeks post-surgery; W4, 4 weeks post-surgery. Spearman’s correlation coefficients were calculated assuming a nonnormal distribution.
