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. 2022 Jul 26;14:927625. doi: 10.3389/fnagi.2022.927625

FIGURE 2.

FIGURE 2

Validation of intersection metabolites in the selected metabolite set and the targeted metabolite set through Venn diagram software. A total of three intersection metabolites, including butyrate, tyrosine, and phenylalanine, were obtained. Then, the three metabolites (butyrate, tyrosine, and phenylalanine) were validated that they were highly associated with Parkinson’s disease.