Molecular Hydrogen Reverses Nociplastic Pain and Depressive-like Behaviors via Region- and Sex-Dependent Central Mechanisms.
Sylmara Esther Negrini-Ferrari, Ignacio Martínez-Martel, Olga Pol · International journal of molecular sciences · 2026
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Independent study record
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H2HUBB TAKEAWAY
In female C57BL/6 mice, at the molecular level, HRW reduced spinal oxidative stress and ERK-dependent plasticity without altering spinal NLRP3 expression, whereas it fully reversed NLRP3 upregulation and HO-1 downregulation in the amygdala. These results are preclinical and suggest molecular hydrogen's therapeutic potential in the condition studied. Further human research is needed to establish clinical effectiveness.
What the Researchers Studied
Female C57BL/6 mice
How Molecular Hydrogen Was Used
This study investigated the therapeutic effects of molecular hydrogen (H₂) in a reserpine-induced murine model of fibromyalgia, with emphasis on sex-dependent and region-specific mechanisms. Hydrogen-rich water (HRW) progressively reversed mechanical and thermal hypersensitivity and rapidly abolished cold allodynia, showing greater efficacy in females. These findings indicate that H₂ alleviates sensory and affective alterations through region- and sex-dependent central mechanisms, supporting HRW as a promising therapeutic strategy for nociplastic pain and its affective comorbidities.
What the Researchers Found
At the molecular level, HRW reduced spinal oxidative stress and ERK-dependent plasticity without altering spinal NLRP3 expression, whereas it fully reversed NLRP3 upregulation and HO-1 downregulation in the amygdala.
Biological or Mechanistic Findings
This study investigated the therapeutic effects of molecular hydrogen (H₂) in a reserpine-induced murine model of fibromyalgia, with emphasis on sex-dependent and region-specific mechanisms.
Authors’ Conclusion
The authors concluded that these findings indicate that H₂ alleviates sensory and affective alterations through region- and sex-dependent central mechanisms, supporting HRW as a promising therapeutic strategy for nociplastic pain and its affective comorbidities. These results are preclinical and suggest molecular hydrogen's therapeutic potential in the condition studied. Further human research is needed to establish clinical effectiveness.