High-flow hydrogen inhalation might suppresses the immune function of middle-aged participants: a self-controlled study.
Ji-Bing Chen, Xiao-Feng Kong, Feng Mu · Medical gas research · 2021
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 Peripheral blood mononuclear cells were isolated using Ficoll solution and labeled with fluorescent antibodies (BD Biosciences, San Jose, CA, USA), after 2 weeks of hydrogen inhalation, statistically significant changes were observed in follicular helper T cells, helper and cytotoxic T cells, natural killer and natural killer T cells, and gamma delta T cells, generally suggesting a decrease in their proportions. These findings from a laboratory model add evidence supporting molecular hydrogen's biological and therapeutic potential in the model studied.
What the Findings Mean
H2HUBB reviewed how molecular hydrogen affected the outcomes measured in Peripheral blood mononuclear cells were isolated using Ficoll solution and labeled with fluorescent antibodies (BD Biosciences, San Jose, CA, USA). After 2 weeks of hydrogen inhalation, statistically significant changes were observed in follicular helper T cells, helper and cytotoxic T cells, natural killer and natural killer T cells, and gamma delta T cells, generally suggesting a decrease in their proportions.
What the Researchers Studied
The researchers studied Peripheral blood mononuclear cells were isolated using Ficoll solution and labeled with fluorescent antibodies (BD Biosciences, San Jose, CA, USA). The study used a laboratory experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
Source-reported hydrogen concentration: 66.7% source-reported H₂ gas concentration; Source-reported hydrogen exposure: 66.7% source-reported H₂ gas concentration; 3 L/min total gas flow (approximately 2001 mL/min H₂ component); reported treatment duration: 2 weeks. After 2 weeks of hydrogen inhalation, statistically significant changes were observed in follicular helper T cells, helper and cytotoxic T cells, natural killer and natural killer T cells, and gamma delta T cells, generally suggesting a decrease in their proportions.
Why These Findings Matter
These findings from a laboratory model add evidence supporting molecular hydrogen's biological and therapeutic potential in the model studied.
How Strong Is This Evidence?
This is laboratory evidence from a laboratory experiment. It is most informative for the biological mechanisms, cellular responses, or biochemical outcomes directly measured.
Technical Study Details
H2HUBB classifies this publication as laboratory study with laboratory or cellular evidence. The research population or model was Peripheral blood mononuclear cells were isolated using Ficoll solution and labeled with fluorescent antibodies (BD Biosciences, San Jose, CA, USA). The reported sample size was 20. The study used a laboratory experiment. The source-reported hydrogen concentration was 66.7% source-reported H₂ gas concentration. The reported treatment duration was 2 weeks.
Limitations and Safety
Safety information: Hydrogen inhalation therapy has been proven to be safe and effective in disease treatment in multiple clinical reports, but the gas flow rates used in different studies vary greatly. Since there is no upper limit for the safe concentration of hydrogen, this study tested the effects of high-flow (not high concentration) hydrogen inhalation on immune function.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.