The role of inflammatory pathways in microbiome dysbiosis and neurodegenerative disorders was also discussed by Haran et al. In their analysis, associations between the dysregulation of the anti-inflammatory P-glycoprotein pathway, the microbiome, and the pathogenesis of Alzheimer’s disease were observed [56,88]. The gene discussed is ABCB1; the disease is early-onset autosomal dominant Alzheimer disease.