MKI67 and psoriasis: As for psoriasis, the influence of artemisinin is uncertain, but in the experiment with imiquimod-induced psoriasis treated with artesunate systemic inflammation was inhibited, T lymphocytes number in draining lymph nodes, cumulative score, epidermal thickening, and proliferation rate (Ki-67 expression) decreased (Efferth and Oesch, 2021).