Related Experiment Video
Updated: Mar 1, 2026

Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
Published on: July 18, 2025
Fatty liver and FGF21 physiology.
1Harvard Medical School, Department of Medicine, Division of Endocrinology, Beth Israel Deaconess Medical Center, CLS 7 3 Blackfan Circle, Boston, MA 02215, United States.
Non alcoholic fatty liver disease (NAFLD) is a growing concern linked to obesity. Fibroblast growth factor 21 (FGF21) shows promise in reducing liver fat, inflammation, and fibrosis, offering potential therapeutic targets.
Area of Science:
- Hepatology
- Metabolic Regulation
- Endocrinology
Background:
- Non-alcoholic fatty liver disease (NAFLD) is a major cause of chronic liver dysfunction, strongly associated with rising obesity and metabolic syndrome rates.
- The precise molecular mechanisms underlying NAFLD pathogenesis are not fully understood, and effective therapeutic options beyond diet remain limited.
- Fibroblast growth factor 21 (FGF21) is a key metabolic regulator produced in the liver, influencing systemic metabolism and potentially liver health.
Purpose of the Study:
- To explore the physiological role of FGF21 in the context of liver disease.
- To investigate the potential of FGF21 as a therapeutic target for NAFLD.
- To understand how FGF21 impacts fat accumulation, inflammation, and fibrosis in the liver.
Main Methods:
- Review of existing scientific literature on FGF21 and NAFLD.
- Analysis of preclinical and clinical data regarding FGF21's effects on liver fat.
- Examination of studies investigating FGF21's impact on hepatic inflammation and fibrosis.
Main Results:
- Evidence suggests FGF21 administration can decrease hepatic fat accumulation.
- FGF21 treatment has been associated with reduced liver inflammation and fibrosis in various models.
- FGF21's complex systemic effects highlight its role as a metabolic regulator.
Conclusions:
- Understanding FGF21 physiology is crucial for advancing the comprehension of liver disease.
- FGF21 presents a promising therapeutic avenue for managing NAFLD and its associated complications.
- Targeting FGF21 pathways may offer novel strategies for treating fatty liver disease.
Related Concept Videos
Liver Physiology
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
Liver Regeneration
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Overview of Fatty Acid Metabolism
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Cell Specific Gene Expression

