Can hydrogen therapy help with depression and memory problems?

This study suggests it might. Mice receiving hydrogen therapy showed significantly improved mood and better memory performance compared to untreated mice. The treatment reduced brain inflammation that contributes to these problems.

How does molecular hydrogen improve brain function?

Hydrogen appears to work by reducing brain inflammation and oxidative stress. It suppresses activated immune cells in the brain called microglia and lowers inflammatory proteins that damage brain tissue.

What form of hydrogen was used in this study?

Researchers used hydrogen-rich jelly that the mice ate daily for about 6 months. This delivery method allowed for consistent, long-term hydrogen exposure.

Is hydrogen therapy safe for brain conditions?

The study found no adverse effects from hydrogen treatment in mice. However, human safety and effectiveness would need to be confirmed through clinical trials before recommending hydrogen therapy.

How long did it take to see benefits from hydrogen therapy?

The mice received hydrogen therapy for 26-28 weeks (about 6 months) before testing. This suggests that sustained treatment may be needed to see meaningful improvements in mood and memory.

Hydrogen Therapy Improves Depression and Memory in Aging Mice

Authors: Keiichi Nakagawa, Kayoko Kodama, Wataru Nagata, Sayaka Takahashi, Yasushi Satoh, Toshiaki Ishizuka
Journal: Behavioural Brain Research
Year: 2024
DOI: 10.1016/j.bbr.2024.115330
Study Type: Mouse
Outcome: Positive
Peer Reviewed: Yes
Country: Japan
Health Condition: Depression
Body System: Nervous System

TL;DR

Molecular hydrogen treatment in jelly form improved mood and memory while reducing brain inflammation in aging mice.

Key Finding

Hydrogen-rich jelly reduced depression-like behaviors and improved memory in aged mice while lowering brain inflammation markers and markers of cellular damage in key memory regions.

Summary

Researchers gave aging mice that develop dementia-like symptoms either hydrogen-rich jelly or regular jelly for about 26 weeks, then tested their mood and memory. Mice receiving hydrogen-rich jelly showed less depression-like behavior, better memory performance, and lower levels of brain inflammation markers compared to control mice. The study suggests hydrogen may reduce harmful inflammation in the brain that occurs with aging.

Practical Takeaway

This is an early-stage animal study in mice engineered to age rapidly, so results cannot yet be applied to humans. While the findings suggest hydrogen may help reduce brain inflammation linked to aging-related mood and memory problems, much more research—including human trials—would be needed before any health claims could be made. The study supports further investigation but does not establish that hydrogen water would have similar effects in people.

Abstract

Background and aims: Neuroinflammation, a low-grade chronic inflammation of the central nervous system, is linked to age-related neuropsychiatric disorders such as senile depression and Alzheimer's disease. Recent studies have explored controlling neuroinflammation as a novel treatment strategy. Molecular hydrogen shows anti-inflammatory effects. However, its impacts on neuroinflammation and age-related neuropsychiatric disorders remain unelucidated. We investigated molecular hydrogen's effects on microglial activation, neuroinflammation, depressive-like behavior, and short-term cognitive decline in senescence-accelerated mouse-prone 8 (SAMP8) mice. Methods: Six-week-old SAMP8 or senescence-accelerated mouse-resistant 1 (SAMR1) mice received hydrogen-rich jelly (HRJ) or placebo jelly (PJ) from six weeks of age for 26-28 weeks. Depressive-like behavior was assessed using tail suspension and forced swimming tests, while cognitive function was evaluated using the Y-maze and object recognition tests. Brain tissues were used for immunohistochemical studies or to measure pro-inflammatory cytokine levels via enzyme-linked immunosorbent assay (ELISA). Results: HRJ intake reduced immobility time in both tail suspension and forced swimming tests and enhanced visual cognitive and spatial working memory in SAMP8 mice. Additionally, HRJ intake suppressed the 8-hydroxy-2'-deoxyguanosine (8-OHdG), Iba1, and cleaved caspase 3 expression levels in the medial prefrontal cortex and hippocampal dentate gyrus. Furthermore, HRJ intake significantly lowered IL-6 levels in brain tissues of SAMP8 mice. Conclusions: These findings suggest that molecular hydrogen treatment may regulate neuroinflammation induced by activated microglia and improve depressive-like behavior and short-term cognitive impairment in SAMP8 mice.