Hydrogen gas with hypothermic machine perfusion induces lipidomic alterations in donation-after-cardiac-death rat livers.
Yusuke Minami, Siddabasave Gowda B B Gowda, Kengo Shibata, Sodai Sakamoto, Divyavani Gowda, Tsuyoshi Shimamura, Akinobu Taketomi, Hitoshi Chiba, Moto Fukai, Shu-Ping Hui · Journal of lipid research · 2026
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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 rats, compared with MP, MP-H₂ treatment reduced lysophosphatidylinositol (LPI) levels and the LPI/phosphatidylinositol ratio while increasing phosphatidic acid (PA) species such as PA (18:0/18:1) and PA (18:0/20:4). 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 rats. Compared with MP, MP-H₂ treatment reduced lysophosphatidylinositol (LPI) levels and the LPI/phosphatidylinositol ratio while increasing phosphatidic acid (PA) species such as PA (18:0/18:1) and PA (18:0/20:4).
What the Researchers Studied
The researchers studied rats. The study used a preclinical animal experiment.
What Effects Did Molecular Hydrogen Have?
Hypothermic machine perfusion (HMP) combined with hydrogen gas has previously been shown to mitigate ischemia-reperfusion injury (IRI) in rat liver, but without full recovery of function. This study examined how hydrogen gas modulates hepatic lipid metabolism during HMP using donation after cardiac death (DCD) rat livers. The analysis results revealed distinct lipid metabolic alterations across cold storage, machine perfusion (MP), and hydrogen-supplemented perfusion (MP-H₂) groups compared to healthy controls. Compared with MP, MP-H₂ treatment reduced lysophosphatidylinositol (LPI) levels and the LPI/phosphatidylinositol ratio while increasing phosphatidic acid (PA) species such as PA (18:0/18:1) and PA (18:0/20:4). The authors concluded that the restoration of key lipid species associated with mitochondrial integrity and membrane remodeling suggests that hydrogen gas supports bioenergetic recovery and limits oxidative membrane damage during reperfusion.
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.
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.