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Effects of L. lactis NZ9000 and L. lactis NZ9000-SeNPs on serum and ileum cytokine levels in mice challenged with ETEC K88. (A) Serum levels of IFN-γ. (B) Serum levels of TNF-α. (C) Serum levels of IL-1β. (D) Ileum levels of IL-1β. All data are presented as the means ± SEM (n = 6). *, P < 0.05; **, P < 0.01.
