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Serum levels of TNF-α, IL-10, and TNF-α/IL-10 ratio in hip fracture versus normal rats. a, b Serum level of TNF-α (a) and IL-10 (b) in hip fracture versus normal rats. **P < 0.01, ***P < 0.001 compared with normal rats. c Serum TNF-α/IL-10 ratio in normal, immune disturbance (IMD), and non-IMD rats. *P < 0.05 for comparison between IMD and normal rats, and #P < 0.05 for comparison between IMD and non-IMD rats. N = 15 at each time point
