GPT and Cognitive impairment: Hepatic function is commonly measured by assessing levels of liver enzymes like alanine aminotransferase (ALT), aspartate aminotransferase (AST), AST/ALT ratio, and gamma-glutamyl transferase (GGT) in the peripheral blood.11 High levels of these enzymes have been implicated in several metabolic and cardiovascular disorders12-14 which are themselves linked with increased risk of cognitive impairment and dementia.3 However, it is unclear if these markers could be predictors of cognitive impairment and dementia.