TNFSF13 and inflammation: Moreover, supplementation with Ligilactobacillus salivarius MP101 in elderly patients who tested positive for SARS-CoV-2 significantly decreased the concentrations of fecal BAFF/TNFSF13B, APRIL/TNFSF13, chitinase 3-like 1, IL32, IL34, gp130/sIL-6Rb, sTNF-R1 and sTNF-R2, which is consistent with amelioration of intestinal inflammation [78].