To answer whether the GDM-FMT model mice also activated the related inflammatory response, we tested the inflammatory indicators in the plasma of 21-day gestation (D21) mice and found that TNF-α, CXCL 15, and IL6 were expressed in the plasma of GDM-FMT higher than healthy-FMT group (Figure 4F–H, all p < 0.05, fold changes = 2.07, 5.96, and 3.90, respectively). The gene discussed is TNF; the disease is gestational diabetes.