Hydrogen Water Reduces Gut Inflammation in Ulcerative Colitis Study

Authors
Journal
International Immunopharmacology
Year
DOI
10.1016/j.intimp.2026.116726
Study Type
Cell Culture
Outcome
Positive
Peer Reviewed
Yes
Country
China
Health Condition
Ulcerative Colitis
Body System
Digestive

TL;DR

Molecular hydrogen reduced ulcerative colitis–like inflammation and tissue injury in cell and mouse models by promoting PKM2 lactylation, which restrained NLRP3 inflammasome activation, pyroptosis, and inflammatory cytokine release.

Key Finding

Molecular hydrogen reduced inflammation and cell damage in ulcerative colitis models by promoting a chemical modification of the PKM2 protein, which then blocked activation of the NLRP3 inflammasome—a key driver of gut inflammation.

Summary

This study investigated how molecular hydrogen might help treat ulcerative colitis (a chronic inflammatory bowel disease) by examining its effects on cells and mice. Researchers found that hydrogen-rich water and hydrogen-rich medium reduced inflammation, cell damage, and a type of cell death called pyroptosis by activating a protein called PKM2, which then blocked an inflammation-triggering system called the NLRP3 inflammasome.

Practical Takeaway

While this research identifies a promising mechanism by which hydrogen might help ulcerative colitis, the study was conducted only in laboratory cells and mice, not in humans. These early findings suggest hydrogen may warrant further investigation, but much more research—including human clinical trials—would be needed before any health recommendations could be made.

Abstract (excerpt)

Background: Molecular hydrogen is considered to be able to alleviate the progression of ulcerative colitis (UC), whose underlying molecular mechanism remains largely unclear. Methods: Lipopolysaccharide (LPS)/adenosine triphosphate (ATP)-stimulated human colonic epithelial cells (HCoEpiC) were used…

Read the full abstract via DOI