Fig. 5

Expressions of sirtuin 1 (SIRT1) and phosphorylated (p)-SIRT1 in IMR-90 cells, ex vivo fetal lungs, and fibroblasts of ex vivo fetal lungs by lipopolysaccharide (LPS). A Expressions of SIRT1, p-SIRT1, and p-SIRT1/SIRT1 in IMR-90 cells by LPS at 0, 10, 30, and 50 μg/ml for 24 h (n = 6). B Expressions of SIRT1, p-SIRT1, and p-SIRT1/SIRT1 in whole fetal lungs by LPS at 0, 10, 30, and 50 μg/ml for 3 days (n = 6). C Expressions of fibronectin⁺ SIRT1, p-SIRT1, and p-SIRT1/SIRT1 of fetal lungs by LPS at 0 and 50 μg/ml for 3 days. DAPI (in blue). Fibronectin (in red). SIRT1, p-SIRT1 (in green) (n = 3). *p < 0.05