Light Therapy Plus Hydrogen Gas Boosts Brain Protection After Oxygen Loss
Enhanced neuroprotective effects of combined photobiomodulation and hydrogen inhalation in a mouse model of hypoxic-ischemic brain injury
Research hubs: Brain & Nervous System
- Authors
- Gyeong-Gyu Yu, Seong-Min Kim, Sang-Chul Kim, Gwan-Jin Park, Young-Min Kim, Hyun-Seok Chai, Hyeon-Jeong Park, Hoon Kim
- Journal
- Experimental Brain Research
- Year
- 2026
- DOI
- 10.1007/s00221-026-07352-4
- Study Type
- Mouse
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- South Korea
- Health Condition
- Hypoxic-ischemic brain injury (HIBI)
- Body System
- Nervous system
TL;DR
Combining hydrogen inhalation with photobiomodulation provided greater neuroprotection than either treatment alone in mice with hypoxic-ischemic brain injury.
Key Finding
Combining photobiomodulation and hydrogen gas inhalation provided greater protection against hypoxic-ischemic brain injury in mice than either treatment alone, reducing neuron loss, brain inflammation, and cell death signals more effectively.
Summary
This study tested whether combining two treatments — photobiomodulation (PBM, which uses light therapy to stimulate cells) and hydrogen gas inhalation — could better protect brain cells in mice after a hypoxic-ischemic brain injury (a type of injury caused by reduced oxygen and blood flow to the brain). Researchers compared PBM alone, hydrogen inhalation alone, and the two treatments together, measuring brain cell survival, inflammation, and movement ability 24 hours after injury. The combination treatment outperformed either therapy on its own across multiple measures of brain damage and recovery.
Practical Takeaway
This mouse study suggests that hydrogen gas inhalation may work better for neuroprotection when paired with light therapy than when used alone, but these findings are early-stage animal research and cannot be directly applied to humans. Much more research, including human clinical trials, would be needed before drawing any conclusions about treatment for brain injury in people.
Abstract (excerpt)
Hypoxic-ischemic brain injury (HIBI) is characterized by complex pathological processes that contribute to acute neuronal damage. Photobiomodulation (PBM) and hydrogen inhalation have each demonstrated neuroprotective effects in ischemic and hypoxic models; however, the effects of their combined…