Hydrogen gas inhalation inhibits progression to the “irreversible” stage of shock after severe hemorrhage in rats.
Tadashi Matsuoka, Masaru Suzuki, Motoaki Sano, Kei Hayashida, Tomoyoshi Tamura, Koichiro Homma, Keiichi Fukuda, Junichi Sasaki · The journal of trauma and acute care surgery · 2017
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 rats, at 2 hours after fluid resuscitation, blood pressure remained in the normal range and metabolic acidosis was well compensated in the H₂ gas-treated rats, whereas the researchers observed decreased blood pressure and uncompensated metabolic acidosis and hyperkalemia in the surviving control gas-treated rats. 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 rats. At 2 hours after fluid resuscitation, blood pressure remained in the normal range and metabolic acidosis was well compensated in the H₂ gas-treated rats, whereas the researchers observed decreased blood pressure and uncompensated metabolic acidosis and hyperkalemia in the surviving control gas-treated rats.
What the Researchers Studied
The researchers studied rats. The study used a preclinical animal experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
Source-reported hydrogen concentration: 1.3% source-reported H₂ gas concentration; Source-reported hydrogen exposure: 1.3% source-reported H₂ gas concentration; reported treatment duration: 2 hours. At 2 hours after fluid resuscitation, blood pressure remained in the normal range and metabolic acidosis was well compensated in the H₂ gas-treated rats, whereas the researchers observed decreased blood pressure and uncompensated metabolic acidosis and hyperkalemia in the surviving control gas-treated rats. The authors concluded that clinically, H₂ gas inhalation is expected to stabilize the subject until curative treatment can be performed, thereby increasing the probability of survival after hemorrhagic shock.
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 rats. The study used a preclinical animal experiment. The hydrogen delivery method was inhaled hydrogen gas. The source-reported hydrogen concentration was 1.3% source-reported H₂ gas concentration. The reported treatment duration was 2 hours.
Limitations and Safety
No separate limitations or safety findings were identified in the current-study 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. The original scholarly source is available at https://www.ovid.com/jnls/jtrauma/abstract/10.1097/ta.0000000000001620~hydrogen-gas-inhalation-inhibits-progression-to-the?redirectionsource=fulltextview.