Hydrogen Gas Helps Protect Brain After Stroke in Rat Study
Hydrogen inhalation and intrathecal magnesium sulfate ameliorate ischemia by suppressing cortical spreading depolarization in a rat subarachnoid hemorrhage model
Research hubs: Brain & Nervous System · Cardiovascular System
- Evidence type
- Animal study (rat)
- Authors
- Toru Yoshiura, Satoko Kawauchi, Sho Nishida, Sho Sato, Daichi Hagita, Arumu Endo, Masaya Nakagawa, Takashi Fujii, Yohei Otsuka, Yumiko Mishima, Kazuya Fujii, Satoru Takeuchi, Arata Tomiyama, Terushige Toyooka, Shunichi Sato, Kojiro Wada
- Journal
- Neurotherapeutics
- Year
- 2025
- DOI
- 10.1016/j.neurot.2025.e00617
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Japan
- Health Condition
- Subarachnoid Hemorrhage
- Body System
- Nervous System
This research was done in animals. Results in animals often don't carry over to people.
TL;DR
Inhaling hydrogen gas and receiving magnesium injections in the spine may help reduce brain damage after a type of stroke in rats.
Key Finding
In rats with simulated subarachnoid hemorrhage, inhaled hydrogen gas and magnesium sulfate both significantly reduced the duration of cortical spreading depolarization (abnormal electrical waves in the brain) and the time the brain spent without adequate blood flow.
Summary
This study tested whether inhaled hydrogen gas and magnesium could protect the brain in rats that had experienced a type of stroke called subarachnoid hemorrhage. Researchers measured brain electrical activity and blood flow after inducing the stroke condition. Both hydrogen and magnesium reduced the duration of abnormal electrical waves in the brain and improved blood flow to brain tissue, with hydrogen working particularly quickly.
Practical Takeaway
While this rat study suggests hydrogen inhalation may help protect brain tissue during certain types of stroke, it is a preliminary animal study and does not yet demonstrate safety or effectiveness in humans. The treatments did not improve measurable neurological outcomes in these rats, which limits the strength of the findings. Human clinical trials would be needed before any conclusions could be drawn about potential benefits for stroke patients.
Abstract (excerpt)
This study investigated whether inhaled hydrogen and intrathecal magnesium could mitigate cortical spreading depolarization and delayed cerebral ischemia in a rat model of subarachnoid hemorrhage. Adult male rats underwent subarachnoid hemorrhage induction with nitric oxide synthase inhibition…