Table 1.

Changes in the intestinal microbiota populations of patients of Parkinsons’s disease.

Phylum	Family	Genus	Change	Reference
Actinobacteria	Bifidobacetriaceae	Bifidobaterium	↑	(Unger et al., 2016; Hill-Burns et al., 2017; Petrov et al., 2017; Vidal-Martinez et al., 2020)
Bacteroidetes	Prevotellaceae	Prevotella	↓	(Hill-Burns et al., 2017; Lin et al., 2019; Vidal-Martinez et al., 2020)
	Bacteroidaceae	Bacteroides	↓	(Hasegawa et al., 2015)
Firmicutes	Lachnospiraceae		↓	(Lin et al., 2018; Jin et al., 2019)
		Blautia	↓	(Hill-Burns et al., 2017)
		Roseburia	↓	(Aho et al., 2019)
	Ruminococcaceae	Ruminococcus	↓	(Li et al., 2017)
	Eubacteriaceae	Eubacterium	↓	(Keshavarzian et al., 2015)
	Enterococcaceae		↑	(Hopfner et al., 2017)
		Enterococcus	↑	(Li et al., 2017)
	Lactobacillaceae		↑	(Hopfner et al., 2017; Lin et al., 2018)
		Lactobacillus	↑	(Bedarf et al., 2017; Lin et al., 2019; Baldini et al., 2020)
	Christensenellaceae	Christensenella	↑	(Petrov et al., 2017; Baldini et al., 2020)
	Clostridiaceae	Clostridium XVIII	↑	(Qian et al., 2018)
		Clostridium IV	↑	(Qian et al., 2018)
Proteobacteria	Enterobacteriaceae		↑	(Unger et al., 2016)
Verrucomicrobia	Verrucomicrobiaceae	Verrucomicrobia	↑	(Lin et al., 2019)
		Akkermansia	↑	(Keshavarzian et al., 2015; Bedarf et al., 2017; Hill-Burns et al., 2017; Lin et al., 2019; Vidal-Martinez et al., 2020)