Hydrogen Inhalation Reduces Lung Inflammation and Blood Pressure in the Experimental Model of Pulmonary Hypertension in Rats.
Tatyana Kuropatkina, Dmitrii Atiakshin, Fedor Sychev, Marina Artemieva, Tatyana Samoilenko, Olga Gerasimova, Viktoriya Shishkina, Khaydar Gufranov, Natalia Medvedeva, Tyler W LeBaron, Oleg Medvedev · Biomedicines · 2023
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, it has also been reported that, whereas either drinking hydrogen water or intermittent inhalation of 2% H₂ gas had favorable effects in a rat model of Parkinson’s disease, continuous exposure to 2% H₂ gas had no significant favorable effects [ 25 ]. Although the researchers did not observe an effect of H₂ on symptoms of MCT PH development such as increased RVSP and RV hypertrophy, the effect of H₂ exposure on the magnitude of systemic blood pressure was demonstrated. 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. it has also been reported that, whereas either drinking hydrogen water or intermittent inhalation of 2% H₂ gas had favorable effects in a rat model of Parkinson’s disease, continuous exposure to 2% H₂ gas had no significant favorable effects [ 25 ].
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: 4% source-reported H₂ gas concentration. The authors concluded that it has also been reported that, whereas either drinking hydrogen water or intermittent inhalation of 2% H₂ gas had favorable effects in a rat model of Parkinson’s disease, continuous exposure to 2% H₂ gas had no significant favorable effects [ 25 ]. Hydrogen has been shown to exhibit selective antioxidant properties against hydroxyl radicals, and exerts antioxidant and anti-inflammatory effects. Future research should measure these other mediates in order to elucidate the molecular mechanism of molecular hydrogen.
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 4% source-reported H₂ gas concentration. The reported treatment duration was 21 days.
Limitations and Safety
Reported limitations: Perhaps the discrepancy between the attenuation of pathological morphological changes and the null effects on RVSP may be explained by the small sample size, relatively short duration of the study, and other unknown mechanisms that contribute to RVSP. The study was limited by a small sample size ( n = 5) of rats, all of which were male.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.