Hydrogen Gas Protects Baby Mice Brains from Anesthesia Damage
Coadministration of hydrogen gas as part of the carrier gas mixture suppresses neuronal apoptosis and subsequent behavioral deficits caused by neonatal exposure to sevoflurane in mice
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 (mouse)
- Authors
- Ryuji Yonamine, Yasushi Satoh, Mitsuyoshi Kodama, Yoshiyuki Araki, Tomiei Kazama
- Journal
- Anesthesiology
- Year
- 2013
- PMID
- 23221861
- Study Type
- Mouse
- Participants
- 20
- Delivery
- Gas
- Dose
- 1.3% hydrogen gas coadministered with 3% sevoflurane for 6 hours
- H₂ concentration
- 1.3% H2 gas
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 77 (OpenAlex, as of November 2026)
- Country
- Japan
TL;DR
Breathing in hydrogen gas can significantly protect baby mice's brains from damage and memory problems caused by a common anesthetic.
Key Finding
Adding hydrogen gas (1.3%) to sevoflurane anesthesia reduced neuronal cell death by approximately 60% and prevented long-term cognitive and behavioral deficits in neonatal mice.
Summary
This mouse study tested whether hydrogen gas could protect developing brains from damage caused by sevoflurane, a common anesthetic. Six-day-old mice were exposed to sevoflurane with or without hydrogen gas mixed in. Researchers found that hydrogen gas significantly reduced brain cell death and prevented memory and social behavior problems that normally occur from sevoflurane exposure alone.
Practical Takeaway
This early-stage animal research suggests hydrogen gas inhalation may protect developing brains from anesthetic damage, but these findings are from mice only and would need human studies before any clinical application. The study does not tell us whether this approach would work in human infants or what dose would be appropriate.
Abstract (excerpt)
Background: In animal models, several anesthetics induce widespread increases in neuronal apoptosis in the developing brain with subsequent neurologic deficits. Although the mechanisms are largely unknown, the neurotoxicity may, at least in part, be due to elevated oxidative stress caused…