Hydrogen Gas Protects Lungs After Blood Loss and Resuscitation
- Authors
- Keisuke Kohama, Hayato Yamashita, Michiko Aoyama-Ishikawa, Toru Takahashi, Timothy R. Billiar, Takeshi Nishimura, Joji Kotani, Atsunori Nakao
- Journal
- Surgery
- Year
- 2015
- DOI
- 10.1016/j.surg.2015.03.038
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Japan
- Health Condition
- Acute Lung Injury
- Body System
- Respiratory
TL;DR
Breathing in hydrogen gas can reduce lung damage and inflammation caused by shock and fluid resuscitation in rats.
Key Finding
Inhaled hydrogen gas (1.3%) significantly reduced acute lung injury in rats after hemorrhagic shock and resuscitation by improving oxygen exchange and reducing inflammation and bleeding in the lungs.
Summary
This study tested whether inhaled hydrogen gas could protect rat lungs from injury caused by severe bleeding followed by fluid resuscitation. Researchers induced hemorrhagic shock in rats, then gave them hydrogen gas to breathe while monitoring lung function. Hydrogen inhalation improved oxygen exchange in the lungs, reduced fluid buildup and bleeding, and lowered inflammatory markers (chemical signals that trigger swelling and damage).
Practical Takeaway
This is early-stage animal research showing hydrogen gas may help protect lungs during severe trauma and blood loss. However, this was a rat study with no human trials yet, so it's unclear whether these results would apply to people or what dose and delivery method would be safe and effective in humans.
Abstract (excerpt)
Hemorrhagic shock followed by fluid resuscitation (HS/R) triggers an inflammatory response and causes pulmonary inflammation that can lead to acute lung injury (ALI). Hydrogen, a therapeutic gas, has potent cytoprotective, antiinflammatory, and antioxidant effects. This study examined the effects…