Related Experiment Video
Updated: Jul 15, 2026

Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
Published on: July 18, 2025
Inherited metabolic disease of the liver
Scott Fink1, Michael L Schilsky
1Division of Digestive and Liver Disease, Center for Liver Disease and Transplantation, Columbia University Medical Center, New York, USA.
Purpose Of Review:
The past decade has seen extraordinary growth in our understanding of the pathophysiology of Wilson disease, genetic hemochromatosis and alpha-1 antitrypsin deficiency as we continue to elucidate the molecular and cellular machinery involved in their pathogenesis. The continued progress in the elaboration of the molecular biology, genetics, epidemiology, and management of these prototypical inherited metabolic diseases will be the focus of this review.
Recent Findings:
Wilson disease and genetic hemochromatosis involve defects in metal transport with copper and iron accumulation in hepatocytes, respectively. In alpha-1 antitrypsin deficiency, hepatocytes accumulate defective alpha-1 antitrypsin that misfolds. As a more complete picture of the molecular biology of the proteins and genes involved in transport has evolved, so has our understanding of the etiopathogenesis of these disorders and the variety of phenotypes observed. Finally, new ideas regarding the clinical management of these disorders will emerge with elucidation of the cellular basis for these diseases.
Summary:
The recent developments detailed in this article have important implications for the future diagnosis and treatment of these diseases. Recent discoveries link molecular defects with alterations in the functional machinery of the cell, and provide new avenues for advancing the diagnosis and treatment of these disorders.
Related Concept Videos
Inborn Errors of Metabolism
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
Lysosomal Hydrolases
Protein Import into the Peroxisomes
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
Diseases of the Liver and Gallbladder
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...

