Hydrogen Water Protects Brain Cells from Oxidative Damage
- Authors
- Ruiting Lu, Yadi Liu, Difen Wang
- Journal
- Chinese Critical Care Medicine
- Year
- 2019
- DOI
- 10.3760/cma.j.issn.2095-4352.2019.06.020
- Study Type
- Cell Culture
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
- Health Condition
- Oxidative Stress
- Body System
- Nervous System
TL;DR
Drinking hydrogen-rich water may help protect brain cells from oxidative damage by activating a cell-survival signaling pathway.
Key Finding
Hydrogen-rich water protected lab-grown mouse brain cells from oxidative stress damage by activating the PI3K/Akt cellular pathway, and blocking this pathway eliminated the protective effect.
Summary
Researchers grew mouse brain cells in a lab and exposed them to hydrogen peroxide to simulate oxidative stress (cellular damage from harmful molecules). They then treated some cells with hydrogen-rich water and found it protected the cells from damage by activating a specific cellular pathway called PI3K/Akt, which helps cells defend themselves. When they blocked this pathway with a chemical inhibitor, the protective effect disappeared, suggesting this pathway is essential for hydrogen-rich water's protective action.
Practical Takeaway
This is an early-stage laboratory study using cultured cells, not living organisms or humans, so results cannot yet be applied to health claims. The findings suggest a potential mechanism by which hydrogen-rich water might protect brain cells from oxidative damage, but much more research—including animal and human studies—would be needed to determine if this translates to real-world benefits.
Abstract
Objective: To explore the protective effect of hydrogen-rich water on the oxidative stress injury of astrocytes in mice and its effect on phosphatidylinositol 3 kinase/protein kinase B (PI3K/Akt) signal pathway. Methods: In vitro, mice astrocytes were cultured and the logarithmic growth period cells were taken for experiment. (1) Experiment one: some cells were acted by 1.25, 2.50, 5.00, 10.00 μmol/L hydrogen peroxide (H2O2) for 20 minutes to determine the appropriate concentration required for astrocyte damage induced by H2O2; cultivating 3, 6, 9, and 12 hours with hydrogen-rich water of 25, 50, 100, and 200 μmol/L, respectively, to determine the concentration and time of hydrogen-rich water pretreatment; the 50 μmol/L hydrogen-rich water was cultured together with PI3K/Akt signal pathway inhibitors wortmannin (WM) 200 nmol/L or 400 nmol/L to determine the best inhibition concentration of wortmannin. Astrocyte activity was detected by methyl thiazolyl tetrazolium (MTT) colorimetry. (2) Experiment two: some cells were divided into blank control group, H2O2 injury group, hydrogen-rich water pretreatment group (HW+H2O2 group), and co-culture of hydrogen-rich water and wortmannin pretreatment group (HW+WM+H2O2 group). The mRNA expressions of PI3K and Akt were detected by reverse transcription-polymerase chain reaction (RT-PCR); the protein expressions of PI3K, Akt and phosphorylated Akt (p-Akt) were detected by Western Blot. Results: (1) Experiment one: the survival rate of the blank control group was 100%. Cell activity gradually decreased with the increase of H2O2 concentration, and the survival rate of the H2O2 action 20 minutes cells of 2.50 μmol/L was reduced to about 50%, so a cell injury model was established at this concentration. With the increase of hydrogen-rich water pretreatment concentration, and the duration of action, the cell survival rate increased first and then decreased. The cell survival rate was highest when 50 μmol/L hydrogen-rich water was pretreated with 9 hours, so a hydrogen-rich water pre-protection model was established. After 200 nmol/L or 400 nmol/L wortmannin was cultured together with hydrogen-rich water, cell activity was inhibited, and the cell survival rate of 200 nmol/L wortmannin group was no significantly different compared with that of H2O2 injury group, so the astrocyte suppression model was established. (2) Experiment two: compared with the blank control group, the mRNA expressions of PI3K and Akt and the protein expressions of PI3K, Akt and p-Akt were significantly decreased in the H2O2 injury group. Compared with the H2O2 injury group, the PI3K, Akt mRNA expressions and PI3K, Akt, p-Akt protein expressions were significantly increased in the HW+H2O2 group [PI3K mRNA (2-ΔΔCT): 0.843±0.019 vs. 0.631±0.038, Akt mRNA (2-ΔΔCT): 0.591±0.025 vs. 0.558±0.037, PI3K/β-actin: 1.277±0.008 vs. 0.757±0.004, Akt/β-actin: 1.308±0.015 vs. 0.682±0.006, p-Akt/β-actin: 1.210±0.005 vs. 0.614±0.005, all P 0.05). Conclusions: Hydrogen-rich water activates the PI3K/Akt pathway, thereby mediates mice astrocytes to exert the biological function of antioxidant.