showed a trendp = 0.051
We further observed that plasma levels of acetic acids correlated with IFN-γ (ρ = 0.301, p = 0.003) and showed a trend with TNF-α (ρ = 0.197, p = 0.051); plasma levels of butyric acids tended to correlate with IFN-γ (ρ = 0.194, p = 0.06) (eFigure 2).