Daily intake of probiotics with high IFN-γ/IL-10 ratio increases the cytotoxicity of human natural killer cells: a personalized probiotic approach.

A personalized probiotic microfluidic chip system has been established and used to screen the probiotics which had the highest value of IFN-γ/IL-10 or IL-10/IFN-γ among six probiotics, including L. paracasei BRAP01, L. acidophilus AD300, B.