Hydrogen gas ameliorates oxidative stress in early brain injury after subarachnoid hemorrhage in rats.
Yan Zhan, Chunhua Chen, Hidenori Suzuki, Qin Hu, Xinggang Zhi, John H Zhang · Critical care medicine · 2012
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 male Sprague-Dawley rats, hydrogen gas significantly alleviated brain edema and blood-brain barrier disruption, reduced apoptosis, and improved neurologic function at 24 hrs but not 72 hrs after subarachnoid hemorrhage. 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 male Sprague-Dawley rats. Hydrogen gas significantly alleviated brain edema and blood-brain barrier disruption, reduced apoptosis, and improved neurologic function at 24 hrs but not 72 hrs after subarachnoid hemorrhage.
What the Researchers Studied
The researchers studied male Sprague-Dawley rats. The study used a preclinical animal experiment.
What Effects Did Molecular Hydrogen Have?
2.9% inhaled H₂ concentration; reported treatment duration: 2 hrs. Hydrogen gas significantly alleviated brain edema and blood-brain barrier disruption, reduced apoptosis, and improved neurologic function at 24 hrs but not 72 hrs after subarachnoid hemorrhage. The authors concluded that hydrogen gas could exert its neuroprotective effect against early brain injury after subarachnoid hemorrhage by its antioxidative activity. Hydrogen gas has been demonstrated to neutralize free radicals and reduce oxidative stress recently.
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 Sprague-Dawley rats. The reported sample size was 7. The study used a preclinical animal experiment. The hydrogen delivery method was inhaled hydrogen gas. The reported hydrogen concentration was 2.9% inhaled H₂ concentration. The reported treatment duration was 2 hrs.
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.