Molecular Hydrogen (H₂) for Alzheimer's Disease

Also known as: H2 therapy, Hydrogen water, Hydrogen gas inhalation

H₂'s selective antioxidant properties address hydroxyl radical damage in AD neurons without disrupting beneficial redox signaling.

Mechanism of Action

H₂ neutralizes •OH radicals generated by iron-mediated Fenton reactions in AD brain (iron accumulates around amyloid plaques). It reduces oxidative DNA damage, protects mitochondrial function, and modulates microglial activation without eliminating beneficial H₂O₂ signaling.

General mechanism: Selective antioxidant gas. Scavenges •OH and ONOO⁻ while preserving signaling ROS. Nrf2 activator, NF-κB inhibitor.

Current Evidence

Preclinical AD models show improved cognition and reduced oxidative damage. Small human studies with hydrogen water show improved cognitive scores. Larger trials needed.

Clinical Status: Preclinical and small clinical studies positive. Available as hydrogen water.

Safety Profile

Extremely safe. No toxicity at therapeutic concentrations. Non-flammable at <4% concentration. No side effects reported.

Key Research Questions

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