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Updated: Jul 16, 2026
09:37
Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
Published on: August 1, 2018
Vascular endothelial dysfunction in cirrhosis
Yasuko Iwakiri1, Roberto J Groszmann
1Hepatic Hemodynamic Laboratory, VA Connecticut Healthcare System, West Haven, CT, USA.
Journal of Hepatology
|March 30, 2007
Summary
Endothelial dysfunction, a key event in liver cirrhosis, impacts both liver microcirculation and systemic arteries. This review examines nitric oxide (NO) roles in sinusoidal endothelial cells and splanchnic circulation.
Area of Science:
- Cardiovascular Biology
- Hepatology
- Vascular Medicine
Background:
- Endothelial dysfunction is a critical early indicator in numerous diseases.
- Vascular nitric oxide (NO) levels serve as a marker for endothelial dysfunction.
- In liver cirrhosis, endothelial dysfunction manifests uniquely in the liver and systemic circulation.
Purpose of the Study:
- To review the distinct features of sinusoidal endothelial cells (SECs) and their dysfunction in cirrhosis.
- To discuss endothelial dysfunction in the splanchnic and systemic arterial circulation associated with cirrhosis and portal hypertension.
Main Methods:
- Literature review focusing on endothelial function in liver cirrhosis.
- Analysis of studies examining nitric oxide (NO) pathways.
- Synthesis of data on sinusoidal endothelial cells (SECs) and arterial circulation.
Main Results:
- Cirrhosis involves impaired liver microcirculation due to endothelial dysfunction, exacerbating portal hypertension.
- Conversely, increased NO production in cirrhosis enhances arterial relaxation in systemic and splanchnic circulations.
- SECs exhibit unique dysfunction characteristics within the cirrhotic liver microenvironment.
Conclusions:
- Endothelial dysfunction in cirrhosis is complex, with contrasting effects in the liver versus systemic arteries.
- Understanding these distinct patterns is crucial for managing liver cirrhosis and its complications like portal hypertension.
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