Using gene expression data, the authors identified 13 glutamine metabolism-related genes, such as MYC, Nuclear factor erythroid 2-related factor 2 (NRF2), and Phosphoinositide 3-Kinase (PI3K), and stratified GBs into two groups showing different overall survival and progression-free survival. The gene discussed is NFE2L2; the disease is Guillain-Barre syndrome.