Hydrogen Therapy Shows Promise for Brain Complications from Sepsis
- Authors
- John Sieh Dumbuya, Cizheng Zeng, Bashir Ahmad, Chuan Tian, Jun Lu
- Journal
- European Journal of Pharmacology
- Year
- 2026
- DOI
- 10.1016/j.ejphar.2026.178693
- Study Type
- clinical
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Sepsis-Associated Encephalopathy
- Body System
- Nervous System
TL;DR
Scientists found that a simple gas called molecular hydrogen might help protect people's brains when they get really serious infections, because it reduces harmful chemicals and swelling in the brain—and it seems super safe to use, but doctors need to figure out the best way to give it to patients.
Key Finding
Molecular hydrogen shows promise in reducing oxidative stress and inflammation associated with sepsis-related brain injury, though current research uses inconsistent treatment protocols that limit definitive conclusions.
Summary
This review examined how molecular hydrogen (a gas with potential medical uses) might help treat sepsis-associated encephalopathy, a serious brain condition that occurs in patients with severe infections. The review found that molecular hydrogen may protect the brain by reducing harmful molecules called reactive oxygen species, decreasing inflammation, and protecting brain cells from damage. However, the researchers noted that different studies used different doses and delivery methods, making it difficult to draw firm conclusions about how well it works in patients.
Practical Takeaway
While early evidence suggests molecular hydrogen may have protective effects on the brain during severe infections, this is a review of laboratory and animal studies rather than human trials. Much more research in actual patients is needed before hydrogen therapy could be considered a proven treatment for this condition. Anyone with sepsis should follow their doctor's established treatment protocols.
Abstract
Sepsis-associated encephalopathy (SAE) is a severe neurological complication that arises in patients with sepsis, characterised by cognitive impairment and neurological dysfunction. Mechanisms contributing to SAE include oxidative stress, inflammation, mitochondrial dysfunction, and blood-brain barrier disruption. Recent studies indicate that molecular hydrogen (H2) offers therapeutic benefits for SAE due to its antioxidant and anti-inflammatory properties. H2 therapy has shown promise in alleviating oxidative stress, neuroinflammation, and neuronal damage linked to SAE, primarily through scavenging reactive oxygen species, suppressing astrocyte and microglia activation, and mitigating mitochondrial dysfunction. However, variations in treatment protocols (such as dosage, delivery methods, and administration routes) limit the generalizability of findings. Despite these challenges, H2 therapy is well-tolerated with minimal adverse effects. This review synthesises the current evidence on H2 therapy in SAE and highlights key directions for future research, focusing on standardising protocols, optimising treatment regimens, and investigating long-term impacts.