FMT from resveratrol-treated (30 mg/kg/day) PD mice to MPTP-induced PD mouse models showed that FMT could increase the abundance of Prevotellaceae, Rikenellaceae, and Erysipelotrichaceae genera, decreased the ratios of Fimicutes/Bacteroidetes and the abundance of Lachnospiraceae and Akkermansia genera, which may contribute to the neuroprotective effects in PD through increasing the number of TH-positive neurons in the SNpc and enriched TH-positive fiber density in the striatum [174]. Here, TH is linked to Parkinson disease.