Figure 2. The regulation of IL-1β, TNF-α, IL-18, and IL-6 in the serum and tears of mice with dry eye and CUMS mice. (A, B), (C, D) are the levels of IL-1β, TNF-α, IL-18, and IL-6 in serum. (E–H) are the contents of IL-1β, TNF-α, IL-18, and IL-6 in tear fluid. Data analysis was performed with Mean ± SEM. ##p < 0.01 compared with blank group; *p < 0.05, **p < 0.01 compared with model group, n = 9.