Hydrogen gas can ameliorate seizure burden during therapeutic hypothermia in asphyxiated newborn piglets.
Toui Tsuchiya, Shinji Nakamura, Yuichiro Sugiyama, Yasuhiro Nakao, Tsutomu Mitsuie, Kota Inoue, Eri Inoue, Yinmon Htun, Makoto Arioka, Kenichi Ohta, Hirosuke Morita, Noriko Fuke, Sonoko Kondo, Kosuke Koyano, Takanori Miki, Masaki Ueno, Takashi Kusaka · Pediatric research · 2024
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 an animal model, the percentage of piglets with an abnormal aEEG background (aEEG-BG), abnormal aEEG-BG+Sz and SE was lower with TH + H₂ than with TH at 24 h after HI insult. 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 was evaluated in this publication and summarizes the source-grounded findings below. The percentage of piglets with an abnormal aEEG background (aEEG-BG), abnormal aEEG-BG+Sz and SE was lower with TH + H₂ than with TH at 24 h after HI insult.
What the Researchers Studied
The study used a preclinical animal experiment.
What Effects Did Molecular Hydrogen Have?
After a 40-min insult and resuscitation, 36 piglets ≤24 h old were divided into three groups. Normothermia (NT, n = 14), TH alone (33.5 ± 0.5 °C, 24 h, n = 13), and TH + H₂ (2.1-2.7% H₂ gas, 24 h, n = 9). aEEG was recorded for 24 h post-insult and its background pattern, status epilepticus (SE; recurrent seizures lasting >5 min), and seizure occurrence (Sz; occurring at least once but not fitting the definition of SE) were evaluated. The percentage of piglets with an abnormal aEEG background (aEEG-BG), abnormal aEEG-BG+Sz and SE was lower with TH + H₂ than with TH at 24 h after HI insult. The authors concluded that iMPACT: In this asphyxiated piglet model, there was a high percentage of animals with an abnormal amplitude-integrated electroencephalography background (aEEG-BG) after hypoxic-ischemic (HI) insult, which may correspond to moderate and severe hypoxic-ischemic encephalopathy (HIE).
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 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.