Curcumin blocks interleukin-1 (IL-1) signaling by inhibiting the recruitment of the IL-1 receptor-associated kinase IRAK in murine thymoma EL-4 cells.
J Nutr. 2005 Aug;135(8):1859-64. PMID: 16046709
Full Citation: "Anti-influenza effect of alkaloids from roots of Mahonia bealei (Fort.) Carr. was studied in vitro. The experiment in embryo indicated that the alkaloids at concentration of 0.25 mg/ml obviously inhibited the proliferation of influenza virus Al, and at concentration of 20 mg/ml showed no side-effect on embryo."