Hydrogen Gas Protects Eye Cells from Damage in Lab Study
Protective effect of molecular hydrogen against oxidative stress caused by peroxynitrite derived from nitric oxide in rat retina
Research hubs: Eyes & Vision System · Brain & Nervous System
This research was done on cells or tissue in a lab, not in people or animals.
- Evidence type
- Laboratory study (cells or tissue)
- Authors
- Takashi Yokota, Naomi Kamimura, Tsutomu Igarashi, Hiroshi Takahashi, Shigeo Ohta, Hideaki Oharazawa
- Journal
- Clinical & Experimental Ophthalmology
- Year
- 2015
- PMID
- 25801048
- Study Type
- Cell Culture
- Delivery
- Medium (Dissolved)
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 32 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Molecular hydrogen (H2) gas can protect eye cells from damage caused by harmful oxidative stress, which is linked to glaucoma.
Key Finding
Molecular hydrogen protected rat retinal cells from oxidative damage by reducing harmful peroxynitrite molecules, preventing cell death, and preserving mitochondrial function.
Summary
Researchers grew rat retina tissue in a lab and exposed it to a chemical that causes oxidative stress (cellular damage from harmful molecules called reactive oxygen species). When they added molecular hydrogen to the culture, it protected the retinal cells by reducing damage, preventing cell death, and maintaining the health of mitochondria (the cell's energy-producing structures). This suggests hydrogen might help prevent or treat glaucoma, a disease involving retinal damage.
Practical Takeaway
This is an early-stage laboratory study using rat tissue, not human trials, so it cannot yet demonstrate that hydrogen water would have these protective effects in people. The findings suggest hydrogen may warrant further investigation for potential eye health applications, but much more research—including human studies—would be needed before any clinical recommendations could be made.
Abstract (excerpt)
AbstractBackgroundOxidative and nitrative processes have an important role in the pathogenesis of glaucomatous neurodegeneration. Oxidative stress occurs when cellular production of reactive oxygen species outweighs the protective capacity of antioxidant defences. Reactive oxygen species…