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Plasma cytokine concentrations for interferon-γ (IFN-γ; A), interleukin-1β (IL-1β; B), and granulocyte macrophage colony-stimulating factor (GM-CSF; C) in male PKU and WT mice fed CAS, AA, and GMP diets. Values are means + SE; nos. in parentheses indicate sample size. a,b,c,dMeans with different superscripted letters are significantly different (P < 0.05).
