The liver-brain axis, from its function to preventive therapeutic strategies in diseases - Report - MDSpire

The liver-brain axis, from its function to preventive therapeutic strategies in diseases

  • By

  • Yaoyao Chen

  • Shangcheng Xu

  • Tao Sun

  • June 26, 2026

  • 0 min

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Clinical Report: Understanding the Liver-Brain Connection

Overview

The liver-brain axis (LBA) is a bidirectional communication network that plays a crucial role in metabolic and neuroimmune responses. Dysfunction of this axis is implicated in obesity, diabetes, and associated psychiatric disorders.

Background

The liver and brain have historically been studied as separate entities, but recent evidence reveals their interconnectedness through the LBA. This relationship is significant as both obesity and diabetes are linked to increased risks of neurocognitive impairment and mood disorders.

Data Highlights

No numerical data was provided in the source material.

Key Findings

  • The LBA integrates neural, humoral, and immune pathways, facilitating communication between the liver and CNS.
  • Dysfunction of the LBA is a core driver of obesity, diabetes, and related multisystemic sequelae.
  • Hepatic encephalopathy exemplifies the consequences of LBA dysfunction, leading to neurocognitive and psychiatric impairments.
  • Recent therapeutic advances targeting the LBA have been reported in the management of metabolic dysfunction-associated liver diseases and psychiatric conditions.
  • Species-specific differences exist in LBA signaling mediators and blood-brain barrier architecture between humans and mice.

Clinical Implications

LBA dysfunction in patients with obesity and diabetes may contribute to neuropsychiatric outcomes.

Conclusion

The LBA represents a critical area of research that may inform future therapeutic strategies for managing metabolic and neuropsychiatric disorders.

Related Resources & Content

  1. BMC Psychiatry, 2025 -- Hepatic function is associated with cognitive function in patients with stable schizophrenia
  2. Journal of Gastroenterology, 2026 -- Covert hepatic encephalopathy as a multi-organ syndrome: the gut–liver–muscle–brain axis, diagnosis, treatment, and multidisciplinary care
  3. EASL Clinical Practice Guidelines on the management of hepatic encephalopathy - ScienceDirect, 2022
  4. AASLD Announces Update to Metabolic Dysfunction‐Associated Steatotic Liver Disease (MASLD) Practice Guidance | AASLD, 2025
  5. Frontiers in Immunology — Calibrating microglia states in Alzheimer’s disease: decoding immune-metabolic networks and nano-targeted multicomponent therapies
  6. Brain — The Influence of Vascular Wellness on Cognitive Function and Brain Health
  7. ACG Clinical Guideline on Hepatic Encephalopathy
  8. Efficacy and safety of rifaximin in preventing hepatic encephalopathy: A systematic review and meta-analysis
  9. EASL Clinical Practice Guidelines on the management of hepatic encephalopathy - ScienceDirect
  10. AASLD Announces Update to Metabolic Dysfunction‐Associated Steatotic Liver Disease (MASLD) Practice Guidance | AASLD
  11. Microbiota transplant for hepatic encephalopathy in cirrhosis: The THEMATIC trial - Journal of Hepatology
  12. Probiotics Prevent Hepatic Encephalopathy After Transjugular Intrahepatic Portosystemic Shunt: A Randomised Controlled Trial - PubMed
  13. Frontiers | Efficacy and safety of L-ornithine L-aspartate combined with lactulose in treatment of hepatic encephalopathy: a systematic review and meta-analysis of randomized controlled trial
  14. Blood-brain barrier dysfunction in hepatic encephalopathy: pathophysiology, diagnostic assessment and therapeutic perspectives - PubMed
  15. Ammonia and beyond – biomarkers of hepatic encephalopathy | Metabolic Brain Disease | Springer Nature Link
  16. Gut microbiota dysbiosis and the gut–liver–brain axis: Mechanistic insights into hepatic encephalopathy - ScienceDirect

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