Fig. 1

VD3 attenuated lung edema. Thirty SD rats were randomly divided into the normoxia group, hypoxia group, and vitamin D3 (VD3, 1,25-(OH)2-D3) group with 10 rats in each group. A Pulmonary arterial pressure was measured using a PowerLab system. B-D PAP, PaO₂, SaO₂, Ca²⁺, K⁺, and Na⁺ was tested using a blood gas analyzer. E Rat lungs were removed, and percent water content measured. Means and standard deviations (SD) were used to represent the data. Statistical analyses (two group comparisons) were performed using Students t-test.^* P < 0.05 vs Normoxia, ^** P < 0.01 vs Normoxia, ^# P < 0.05 vs Hypoxia, ^## P < 0.01 vs Hypoxia