Microbiota-gut-liver-brain axis and hepatic encephalopathy

Area of Science:

• Neuroscience
• Gastroenterology
• Microbiology

Background:

• Hepatic encephalopathy (HE) presents as neurological and psychiatric abnormalities due to liver dysfunction.
• Key complications include hyperammonemia, hyperuricemia, and portal hypertension.
• The gut microbiome's role in liver and brain function via the gut-liver-brain axis is increasingly recognized.

Purpose of the Study:

• To review the pathophysiology of hepatic encephalopathy.
• To explore therapeutic strategies targeting the microbiota-gut-liver-brain axis.
• To highlight potential biomarkers and microbiota-targeted therapies for HE.

Main Methods:

• Literature review of preclinical and clinical studies.
• Analysis of the gut-liver and gut-brain crosstalk mechanisms.
• Synthesis of current understanding of HE pathophysiology.

Main Results:

• Gut microbiota significantly influences liver and brain physiological functions.
• The microbiota-gut-liver-brain axis is crucial in HE development and progression.
• Key molecules in this axis may serve as diagnostic biomarkers and therapeutic targets.

Conclusions:

• Microbiota-targeted therapy offers a promising approach for HE prevention and treatment.
• Understanding the microbiota-gut-liver-brain axis is essential for developing novel HE interventions.
• Further research into biomarkers and therapeutic modulation is warranted.