Hydrogen Water May Reduce Brain Inflammation in Fetal Mice
Maternal molecular hydrogen administration on lipopolysaccharide-induced mouse fetal brain injury
Research hubs: Brain & Nervous System · Reproductive System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (mouse)
- Authors
- Tomoko Nakano, Tomomi Kotani, Yukio Mano, Hiroyuki Tsuda, Kenji Imai, Takafumi Ushida, Hua Li, Rika Miki, Seiji Sumigama, Yoshiaki Sato, Akira Iwase, Akihiro Hirakawa, Masato Asai, Shinya Toyokuni, Fumitaka Kikkawa
- Journal
- Journal of Clinical Biochemistry and Nutrition
- Year
- 2015
- PMID
- 26566302
- Study Type
- Mouse
- Delivery
- Water, Commercial (Blue Mercury)
- Dose
- H2 water for 24 h prior to LPS injection
- Duration
- 1 day or less
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 15 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Giving pregnant mice hydrogen-rich water before inducing inflammation reduced brain damage in their unborn babies.
Key Finding
In pregnant mice, hydrogen water administration reduced fetal brain damage from inflammation-triggering bacterial toxin by decreasing cell death, oxidative damage, and inflammatory markers.
Summary
Researchers studied whether hydrogen water could protect fetal mouse brains from injury caused by a bacterial toxin (lipopolysaccharide) that triggers inflammation. Pregnant mice received hydrogen water for 24 hours before being exposed to the toxin. The study found that hydrogen water reduced three markers of brain damage in the fetuses: cell death, oxidative stress (cellular damage from unstable molecules), and inflammatory signaling molecules.
Practical Takeaway
This is an early-stage animal study in mice, not humans, so its relevance to human pregnancy is unknown. While the results suggest hydrogen water may have protective effects against inflammation-related fetal brain injury, much more research—including human studies—would be needed before any clinical recommendations could be made. Pregnant individuals should consult their healthcare provider before using any new interventions.
Abstract (excerpt)
Fetal brain injury is often related to prenatal inflammation; however, there is a lack of effective therapy. Recently, molecular hydrogen (H2), a specific antioxidant to hydroxyl radical and peroxynitrite, has been reported to have anti-inflammatory properties. The aim of this study was…