Furthermore, hepatic deletion of monocarboxylate transporter 1 (MCT1, encoded by Slc16a1), one of the main transporters of ketone bodies [38], exacerbates hepatic steatosis in female mice [39], although it is unclear whether this aggravation of the fatty liver is mediated by impaired ketone body transport. The gene discussed is SLC16A1; the disease is fatty liver disease.