Hydrogen-saturated saline protects intensive narrow band noise-induced hearing loss in guinea pigs through an antioxidant effect.
Liwei Chen, Ning Yu, Yan Lu, Longjun Wu, Daishi Chen, Weiwei Guo, Lidong Zhao, Mingbo Liu, Shiming Yang, Xuejun Sun, Suoqiang Zhai · PloS one · 2014
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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 guinea pigs, by Scanning electron microscopy and succinate dehydrogenase staining, the researchers found that pre-treatment with hydrogen-saturated saline significantly reduced noise-induced hair cell damage and hearing loss. 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 guinea pigs. By Scanning electron microscopy and succinate dehydrogenase staining, the researchers found that pre-treatment with hydrogen-saturated saline significantly reduced noise-induced hair cell damage and hearing loss.
What the Researchers Studied
The researchers studied guinea pigs. The study used a preclinical animal experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
Albino guinea pigs were randomly assigned to 1 of 3 experimental groups: (1) hydrogen-saturated saline (1 ml/100 g) was administered intraperitoneally 3 days (once a day) and 1 h before noise exposure (hydrogen-saturated saline group, n = 20). (2) normal saline (0.9%) was administered to the same number of guinea pigs by the same method as the control (normal saline group, n = 20); and (3) guinea pigs that did not receive any noise exposure or treatment were used as the normal control (control group, n = 15). By Scanning electron microscopy and succinate dehydrogenase staining, the researchers found that pre-treatment with hydrogen-saturated saline significantly reduced noise-induced hair cell damage and hearing loss. The authors concluded that hydrogen-saturated saline is effective in preventing intensive narrow band noise-induced hearing loss through the antioxidant effect. The results of SDH staining were also superior in the hydrogen-saturated saline group to the normal saline group, suggesting that hydrogen protected the function of mitochondria and maintained a normal tricarboxylic acid cycle, thus protecting noised-induced hair cell damage in the cochlea. the experiments show that hydrogen has a significant protective effect against intensive narrow band noise-induced hair cell damage. The protective effect of hydrogen is via an antioxidant mechanism. Future studies are needed to optimize the time points and the amount of administration, even the signal pathway to deepen the authors' understandings of the antioxidant effect of hydrogen in the cochlea.
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 guinea pigs. 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.