Fig 7.

Effects of Phellodendri Chinensis Cortex - based carbon dots (PCC-CDs) on the a serum levels of TNF-α, IL-6, IL-17A, IL-23 and IL-10 and b skin tissues levels of M1/M2-related cytokines. Control: control group; imiquimod (IMQ): IMQ-treated model group; MTX: methotrexate-treated positive group; H, M, L: high-, medium- and low doses of PCC-CDs group. Data were expressed as means ± standard deviation (SD). *P < 0.05 and **P < 0.01 vs. control group, ^#P < 0.05 and ^##P < 0.01 vs. IMQ group