A cocktail of SCFA-producing probiotics, B. longum, C. symbiosum, F. prausnitzii, and L. fermentum and inulin (a kind of prebiotic) transplanted into aged mice 3 days after stroke, could ameliorate stroke-induced intestinal damage by stimulating epithelial cells to produce mucin, which supports gut barrier function (Van der Post et al., 2019). Here, MUC5AC is linked to Stroke.