Hydrogen Gas in Piglets Protects Newborn Brains Like Cooling
Molecular Hydrogen Affords Similar Neuroprotection to Therapeutic Hypothermia in a Porcine Model of Neonatal Hypoxic-Ischemic Encephalopathy
Research hubs: Brain & Nervous System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (pig)
- Authors
- Emma Balog, Gábor Remzső, Valéria Tóth-Szűki, Éva Rózsa, Viktória Kovács, Ferenc Domoki
- Journal
- Antioxidants
- Year
- 2025
- PMID
- 41462605
- Study Type
- Pig
- Delivery
- Gas
- Dose
- continuous H2 ventilation at 2.1% for 48 hours post-asphyxia
- H₂ concentration
- 2.1%
- Duration
- 2 days
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Hungary
TL;DR
Inhaled hydrogen protected brain tissue and improved brain function in newborns after oxygen deprivation, with neuroprotective effects comparable to therapeutic hypothermia.
Key Finding
Inhaled hydrogen gas provided similar brain protection to therapeutic cooling in newborn pigs with oxygen deprivation injury, particularly in preventing damage to the thalamus.
Summary
Researchers tested whether inhaled hydrogen gas could protect newborn pig brains from damage caused by lack of oxygen and blood flow (a condition called hypoxic-ischemic encephalopathy). They compared hydrogen gas treatment to therapeutic cooling, the current standard treatment. Both treatments reduced brain injury in a specific brain region called the thalamus, though hydrogen gas delayed seizures while cooling eliminated them. Hydrogen gas also produced different electrical activity patterns in the brain compared to cooling.
Practical Takeaway
This animal study suggests hydrogen gas may have potential as a neonatal brain injury treatment, but it is very early research conducted only in pigs. Therapeutic cooling remains the established clinical standard. Any human application would require extensive additional testing before clinical use could be considered.
Abstract (excerpt)
Neonatal hypoxic-ischemic encephalopathy (HIE) remains a major cause of neonatal mortality and long-term disability, despite therapeutic hypothermia (TH) treatment, underscoring the need for further preclinical research. In the present study, we compared the neuroprotection afforded by TH…