Search terms included controlled vocabulary (MeSH terms) and free-text keywords such as “gut microbiota,” “Traditional Chinese Medicine,” “metabolic dysfunction-associated steatotic liver disease (MASLD),” “non-alcoholic fatty liver disease (MASLD),” “metabolic dysfunction-associated steatohepatitis (Ueno et al.),” “intestinal barrier,” “bile acid metabolism,” “TLR4 signaling,” “FXR-FGF15 axis,” and “botanical metabolites.” Boolean operators (AND/OR) were applied to combine terms, and database-specific filters (e.g., publication type, language, species) were used to refine results. Here, NR1H4 is linked to metabolic dysfunction-associated steatotic liver disease.