Fig 1: Core proteins were screened from the DEPs and validated in serum. (A-D) Correlation analysis of hip T score, serum ferritin and protein levels of core proteins, GSTP1 (A), LAMP2 (B), COPB1 (C), and RAB5B (D). (Pearson correlation analysis). (E-H) Serum protein levels of physical exam volunteers were tested by ELSIA kits. *P<0.05, **P<0.01.