Hydrogen Protects Joint Cartilage from Damage in Lab Study
Molecular hydrogen protects chondrocytes from oxidative stress and indirectly alters gene expressions through reducing peroxynitrite derived from nitric oxide
Research hubs: Musculoskeletal 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
- Teruyasu Hanaoka, Naomi Kamimura, Takashi Yokota, Shinro Takai, Shigeo Ohta
- Journal
- Medical Gas Research
- Year
- 2011
- PMID
- 22146365
- Study Type
- Cell Culture
- Delivery
- Medium (Dissolved)
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 54 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Molecular hydrogen (H2) can protect cells in joints from damage and death by reducing harmful substances that form during inflammation.
Key Finding
Molecular hydrogen reduced peroxynitrite-induced damage in cartilage cells and restored the normal expression of genes responsible for maintaining cartilage structure while suppressing genes that break down cartilage.
Summary
Researchers studied whether molecular hydrogen (H2) could protect cartilage cells from damage caused by reactive molecules called peroxynitrites. Using cultured cartilage cells, they exposed them to chemicals that produce peroxynitrites and found that hydrogen gas reduced this damage, prevented cell death, and restored normal activity of genes that maintain cartilage structure. This suggests hydrogen may work by neutralizing harmful peroxynitrites rather than other damaging molecules.
Practical Takeaway
This laboratory study in cultured cells suggests hydrogen may protect cartilage from oxidative damage, but it is not yet evidence that hydrogen water would help joint health in humans. Animal and human studies would be needed to determine if these cellular effects translate to real-world benefits for conditions like osteoarthritis.
Abstract (excerpt)
Background: Molecular hydrogen (H2) functions as an extensive protector against oxidative stress, inflammation and allergic reaction in various biological models and clinical tests; however, its essential mechanisms remain unknown. H2 directly reacts with the strong reactive nitrogen species…