Hydrogen Water Protects Male Fertility from Radiation Damage in Mice
- Authors
- Yunhai Chuai, Fu Gao, Bailong Li, Luqian Zhao, Liren Qian, Fei Cao, Lei Wang, Xuejun Sun, Jianguo Cui, Jianming Cai
- Journal
- Biochemical Journal
- Year
- 2011
- DOI
- 10.1042/BJ20111786
- Study Type
- Mouse
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Male Infertility
- Body System
- Reproductive System
TL;DR
Hydrogen gas (H2) has been found to protect against radiation damage in germ cells by neutralizing harmful radicals, without causing side effects.
Key Finding
Hydrogen-rich saline given before radiation exposure significantly reduced hydroxyl radical damage and protected male germ cells in mice, preserving sperm production and testicular function.
Summary
Researchers gave mice hydrogen-rich saline (a salt solution containing dissolved hydrogen) before exposing them to ionizing radiation (a type of high-energy radiation used in medical treatments). They found that hydrogen reduced harmful molecules called hydroxyl radicals that are created by radiation, and this protected the mice's sperm-producing cells from damage. The hydrogen-treated mice showed less cell death in their testicles and better sperm production compared to untreated mice.
Practical Takeaway
This is an early-stage animal study showing hydrogen may protect reproductive cells from radiation damage, but it was only tested in mice and only when given before radiation exposure. Human studies would be needed to determine if these results apply to people undergoing radiation therapy. The findings are preliminary and do not yet support any health recommendations.
Abstract
Our recent studies suggest that H2 (hydrogen) has a potential as a novel radioprotector without known toxic side effects. The present study was designed to examine the underlying radioprotective mechanism of H2 and its protective role on irradiated germ cells. Produced by the Fenton reaction and radiolysis of H2O, hydroxyl radicals (•OH) were identified as the free radical species that were reduced by H2. We used a H2 microelectrode to dynamically detect H2 concentration in vivo, and found H2 significantly reduced in situ fluorescence intensity of hydroxyphenyl fluorescein; however, as we treated the mice with H2 after irradiation, the decrease is not significant. We found that pre-treatment of H2 to IR (ionizing radiation) significantly suppressed the reaction of •OH and the cellular macromolecules which caused lipid peroxidation, protein carbonyl and oxidatively damaged DNA. The radioprotective effect of H2 on male germ cells was supported by ameliorated apoptotic findings examined by morphological changes and TUNEL (terminal deoxynucleotidyltransferase-mediated dUTP nick-end labelling) in testicular tissue, and by preserved viability of stem spermatogonia examined for testicular histological parameters, daily sperm production and sperm quality; we used WR-2721 [S-2-(3-aminopropylamino)ethyl phosphorothioic acid] as a reference compound. Our results represent the first in vivo evidence in support of a radioprotective role of H2 by neutralizing •OH in irradiated tissue with no side effects.