Can hydrogen therapy help treat sepsis?

Yes, this study shows hydrogen therapy can help prevent lung damage in sepsis. The researchers found that hydrogen gas combined with microalgae significantly reduced inflammation and protected organs in sepsis models.

How does hydrogen prevent lung injury in sepsis?

Hydrogen works by reducing oxidative stress and inflammation in lung cells. It targets specific proteins and regulates ferroptosis, a type of cell death that contributes to lung damage during sepsis.

What makes this hydrogen therapy different from regular hydrogen gas?

This treatment uses engineered microalgae to deliver hydrogen more effectively. The microalgae carry special nanoparticles that release hydrogen directly where it's needed, making it more practical for hospital use.

Is hydrogen therapy safe for sepsis patients?

The study showed the microalgae-based hydrogen system was safe in laboratory tests. However, more clinical trials in humans are needed before this treatment becomes available for patients.

How was this hydrogen sepsis study conducted?

Researchers used laboratory models of sepsis and analyzed the effects using advanced techniques like proteomics and metabolomics. They tested both cell cultures and animal models to evaluate safety and effectiveness.

Hydrogen Gas and Microalgae Prevent Lung Damage in Sepsis Study

Authors: Yuanlin Wang, Qingqing Han, Lingling Liu, Shuai Wang, Yongfa Li, Yonghao Yu
Journal: Materials Today Bio
Year: 2024
DOI: 10.1016/j.mtbio.2024.101247
Study Type: Cell Culture
Outcome: Positive
Peer Reviewed: Yes
Country: China
Health Condition: Sepsis
Body System: Respiratory

TL;DR

Researchers developed a new nano-system using algae to deliver hydrogen gas and a plant compound to treat sepsis-related lung injury, showing promising results in reducing inflammation and protecting organs.

Key Finding

An engineered nano-system combining dihydroquercetin, ammonia borane, and Chlorella vulgaris reduced lung inflammation and organ damage in sepsis-infected mice by targeting ferroptosis and oxidative stress pathways.

Summary

Researchers created a tiny engineered particle system combining hydrogen-releasing compounds with a type of algae called Chlorella vulgaris to treat acute lung injury caused by sepsis (a life-threatening infection response). In laboratory and mouse studies, this nano-system reduced inflammation, oxidative stress (cellular damage from unstable molecules), and a type of cell death called ferroptosis, while protecting lung and organ function.

Practical Takeaway

This is early-stage research conducted in mice and cell cultures, not humans. While the results suggest this hydrogen-releasing nano-system may have therapeutic potential for sepsis-related lung injury, it remains experimental and far from clinical use. Much more research, including human trials, would be needed before any health claims could be made.

Abstract

Background: Hydrogen gas and microalgae both exist in the natural environment. We aimed to integrate hydrogen gas and biology nano microalgae together to expand the treatment options in sepsis. Methods: Phosphoproteomics, metabolomics and proteomics data were obtained from mice undergoing cecum ligation and puncture (CLP) and inhalation of hydrogen gas. All omics analysis procedure were accordance with standards. Multi R packages were used in single cell and spatial transcriptomics analysis to identify primary cells expressing targeted genes, and the genes' co-expression relationships in sepsis related lung landscape. Then, network pharmacology method was used to identify candidate drugs. We used hydrophobic-force-driving self-assembly method to construct dihydroquercetin (DQ) nanoparticle. To cooperate with molecular hydrogen, ammonia borane (B) was added to DQ surface. Then, Chlorella vulgaris (C) was used as biological carrier to improve self-assembly nanoparticle. Vivo and vitro experiments were both conducted to evaluate anti-inflammation, anti-ferroptosis, anti-infection and organ protection capability. Results: As a result, we identified Esam and Zo-1 were target phosphorylation proteins for molecular hydrogen treatment in lung. Ferroptosis and glutathione metabolism were two target pathways. Chlorella vulgaris improved the dispersion of DQB and reconstructed morphological features of DQB, formed DQB@C nano-system (size = 307.3 nm, zeta potential = -22mv), with well infection-responsive hydrogen release capability and biosafety. In addition, DQB@C was able to decrease oxidative stress and inflammation factors accumulation in lung cells. Through increasing expression level of Slc7a11/xCT and decreasing Cox2 level to participate with the regulation of ferroptosis. Also, DQB@C played lung and multi organ protection and anti-inflammation roles on CLP mice. Conclusion: Our research proposed DQB@C as a novel biology nano-system with enormous potential on treatment for sepsis related acute lung injury to solve the limitation of hydrogen gas utilization in clinics.