BDNF and Yersinia infectious disease: Based on the number of pathway-related genes, those pathways were sorted as endocytosis, protein processing in the endoplasmic reticulum, yersinia infection, neurotrophin signaling pathways, epithelial cell signaling in H. pylori infection, lysine degradation, aminoacyl-tRNA biosynthesis, homologous recombination, biosynthesis of nucleotide sugars, and other glycan degradation (Figure 3(b)).