Hydrogen gas inhalation alleviated cerebral ischemia/reperfusion injury by regulating mitophagy in SH-SY5Y cells and mice via PTEN-induced kinase 1/Parkin pathway.
Zhenkui Wang, Wei Feng, Jie Zhou, Lei Huang, Chuanfeng Fang, Jiarong Yuan, Hongsheng Chen, Li Xue · Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2026
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.
Neutral Summary
In SH-SY5Y cells, H₂ treatment significantly improved cell viability, attenuated oxidative stress and mitochondrial dysfunction, and enhanced mitophagy via activation of the PINK1/Parkin pathway. The authors linked these findings to activation of the PINK1/Parkin pathway. These preclinical findings add evidence supporting molecular hydrogen's therapeutic potential within the outcomes and biological pathways measured in this model.
Hydrogen Intervention
Other or not reported
Additional Notes
H2HUBB TAKEAWAY
In SH-SY5Y cells, H₂ treatment significantly improved cell viability, attenuated oxidative stress and mitochondrial dysfunction, and enhanced mitophagy via activation of the PINK1/Parkin pathway. The authors linked these findings to activation of the PINK1/Parkin pathway. 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 molecular hydrogen affected the outcomes measured in male C57BL/6 mice. In SH-SY5Y cells, H₂ treatment significantly improved cell viability, attenuated oxidative stress and mitochondrial dysfunction, and enhanced mitophagy via activation of the PINK1/Parkin pathway.
What the Researchers Studied
The researchers studied male C57BL/6 mice. The study used a preclinical animal experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
In vitro, human neuroblastoma SH-SY5Y cells were exposed to oxygen-glucose deprivation/reoxygenation (OGD/R), with four experimental groups: Control group, OGD/R + H₂ group, and OGD/R + H₂+ML385 group (5 μM ML385, a specific Nrf2 inhibitor, pretreated for 1 h before OGD). In SH-SY5Y cells, H₂ treatment significantly improved cell viability, attenuated oxidative stress and mitochondrial dysfunction, and enhanced mitophagy via activation of the PINK1/Parkin pathway. The authors concluded that the findings revealed that H₂ exerts significant neuroprotective effects against CIRI by attenuating oxidative stress, inhibiting neuronal apoptosis, and improving mitochondrial function. Molecular hydrogen (H₂) has exhibited promising neuroprotective effects in multiple neurological disease models, yet it remains unclear whether H₂ alleviates CIRI by modulating mitophagy and its upstream regulatory signaling pathways. The authors linked these findings to activation of the PINK1/Parkin pathway.
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 male C57BL/6 mice. The study used a preclinical animal experiment.
Limitations and Safety
No separate limitations or safety findings were identified in the source text available to H2HUBB.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.