2. Academic Validation
  3. Nanoparticulate MgH2 ameliorates anxiety/depression-like behaviors in a mouse model of multiple sclerosis by regulating microglial polarization and oxidative stress

Nanoparticulate MgH2 ameliorates anxiety/depression-like behaviors in a mouse model of multiple sclerosis by regulating microglial polarization and oxidative stress

  • J Neuroinflammation. 2023 Jan 30;20(1):16. doi: 10.1186/s12974-023-02696-y.
Zhenghao Li # 1,  Kefu Chen # 1,  Qi Shao # 1,  Hongtao Lu # 2,  Xin Zhang 1,  Yingyan Pu 1,  Xuejun Sun 2 3,  Hua He 4,  Li Cao 5
Affiliations

Affiliations

  • 1 Institute of Neuroscience and Key Laboratory of Molecular Neurobiology of Military of Education, Naval Medical University, Shanghai, 200433, China.
  • 2 Department of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
  • 3 Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, 200030, China.
  • 4 Department of Neurosurgery, Third Affiliated Hospital, Naval Medical University, Shanghai, 200438, China. hehua1624@smmu.edu.cn.
  • 5 Institute of Neuroscience and Key Laboratory of Molecular Neurobiology of Military of Education, Naval Medical University, Shanghai, 200433, China. caoli@smmu.edu.cn.
  • # Contributed equally.
PMID: 36710351 DOI: 10.1186/s12974-023-02696-y
Abstract

Multiple sclerosis (MS) is an autoimmune demyelinating disease of the central nervous system (CNS). Anxiety and depression are the most common psychiatric comorbidities of MS, which seriously affect patients' quality of life, treatment compliance, and prognosis. However, current treatments for anxiety and depression in MS show low therapeutic efficacy and significant side effects. In the present study, we explored the therapeutic effects of a novel low-toxic anti-inflammatory drug, nanoparticulate magnesium hydride (MgH2), on mood disorders of MS. We observed that anxiety/depression-like behaviors in experimental autoimmune encephalomyelitis (EAE) mice were alleviated by MgH2 treatment. In addition, disease severity and inflammatory demyelination were also diminished. Furthermore, we confirmed the suppressive effect of MgH2 on depression in the acute restraint stress model. Mechanistically, MgH2 may play a therapeutic role by promoting microglial M2 polarization, inhibiting microglial M1 polarization, and reducing oxidative stress and mitochondrial damage. Therefore, nanoparticulate MgH2 may be a promising therapeutic drug for psychiatric comorbidities of MS.

Keywords

Anxiety; Depression; EAE; MgH2; Microglial polarization; Multiple sclerosis; Neuroinflammation.

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