Effects of HMF and HMF+HLU on the concentrations of serum bALP, DPD and GCs.

BL: The baseline group. Rats were executed to get basal data on day 0 of the experiment. C: Rats were raised in a wooden box with a normal GMF for 28 days; HLU: Rats were suspended, unloaded with −30° downward head tilting, and raised in a wooden box; HMF: Rats were raised normally in a GMF-shielded room; HMF+HLU: HLU rats were raised in a GMF-shielded room. Serum concentrations of (A) bALP (µg⋅L⁻¹), (B)DPD (nmol⋅L⁻¹), and (C) GCs (ng⋅L⁻¹). **P<0.01.