Figure 6. GHK-Cu increased antioxidant enzymes and decreased pro-inflammatory cytokines in LPS-induced ALI in mice.

At 24 h after LPS administration, the mice were sacrificed, and lung homogenates and BALF were prepared. A. Total intracellular SOD activity levels were detected using a colorimetric method. B. The level of glutathione (GSH) was measured in the lung homogenate. C. IL-6 and D. TNF-α were detected by ELISA. The data represent the mean ± SD (n = 3). *p < 0.05, statistically significant difference.