Hydrogen in drinking water reduces dopaminergic neuronal loss in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine mouse model of Parkinson’s disease.
Kyota Fujita, Toshihiro Seike, Noriko Yutsudo, Mizuki Ohno, Hidetaka Yamada, Hiroo Yamaguchi, Kunihiko Sakumi, Yukiko Yamakawa, Mizuho A Kido, Atsushi Takaki, Toshihiko Katafuchi, Yoshinori Tanaka, Yusaku Nakabeppu, Mami Noda · PloS one · 2009
Research-use notice
Independent study record
Each H2HUBB study page organizes source-linked research details for educational use. Interpretation should remain proportional to the study design, population, controls, and limitations.
H2HUBB TAKEAWAY
In mice treated with H₂ water, the loss of dopaminergic neurons in SNpc was about a half of that in mice drinking non-H₂ water (54% of saline & non-H₂ water) and showed a significant reduction in the loss of neurons in SNpc ( Figure 2B ). MPTP-induced accumulation of cellular 8-oxoguanine (8-oxoG), a marker of DNA damage, and 4-hydroxynonenal (4-HNE), a marker of lipid peroxidation were significantly decreased in the nigro-striatal dopaminergic pathway in mice drinking H(2)-containing water, whereas production of superoxide (O(2)*(-)) detected by intravascular injection of dihydroethidium (DHE) was not reduced significantly. These preclinical findings add evidence supporting molecular hydrogen's therapeutic potential within the outcomes and biological pathways measured in this model.
What the Findings Mean
H2HUBB reviewed how inhaled hydrogen gas affected the outcomes measured in mice. treated with H₂ water, the loss of dopaminergic neurons in SNpc was about a half of that in mice drinking non-H₂ water (54% of saline & non-H₂ water) and showed a significant reduction in the loss of neurons in SNpc ( Figure 2B ).
What the Researchers Studied
The researchers studied mice. The study used a preclinical animal experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
Reported treatment duration: 7 days. In mice treated with H₂ water, the loss of dopaminergic neurons in SNpc was about a half of that in mice drinking non-H₂ water (54% of saline & non-H₂ water) and showed a significant reduction in the loss of neurons in SNpc ( Figure 2B ). The authors concluded that low concentration of H(2) in drinking water can reduce oxidative stress in the brain. It has been shown that molecular hydrogen (H(2)) acts as a therapeutic antioxidant and suppresses brain injury by buffering the effects of oxidative stress. Fe 2+ can react with hydrogen peroxide (H₂O₂ ) (produced during oxidative deamination of dopamine) to generate •OH that can damage proteins, nucleic acids, and membrane phospholipids, leading to cellular degeneration [34] – [36].
Why These Findings Matter
These preclinical findings add evidence supporting molecular hydrogen's therapeutic potential within the outcomes and biological pathways measured in this model.
How Strong Is This Evidence?
This is preclinical animal evidence from a preclinical animal experiment. It is most informative for the disease model, mechanisms, biomarkers, and outcomes directly measured in the study.
Technical Study Details
H2HUBB classifies this publication as animal study with preclinical animal evidence. The research population or model was mice. The study used a preclinical animal experiment. The hydrogen delivery method was inhaled hydrogen gas. The reported treatment duration was 7 days.
Limitations and Safety
Safety information: In the present experiments, H₂ water made by two relatively easy and safe ways was tested.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.