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RESEARCH ARTICLE
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Hydrogen exerts neuroprotective effects by inhibiting oxidative stress in experimental diabetic peripheral neuropathy rats


1 Department of Neurology, the Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
2 Department of Special Operations Medicine, the Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
3 Department of Hyperbaric Oxygen, the Sixth Medical Center, Chinese PLA General Hospital, Beijing, China

Correspondence Address:
Dan-Feng Fan,
Department of Hyperbaric Oxygen, the Sixth Medical Center, Chinese PLA General Hospital, Beijing
China
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2045-9912.345171

Diabetic peripheral neuropathy (DPN) is a complex disorder caused by long-standing diabetes. Oxidative stress was considered the critical creed in this DPN pathophysiology. Hydrogen has antioxidative effects on diabetes mellitus and related complications. However, there is still no concern on the beneficial effects of hydrogen in DPN. This paper aimed to evaluate the effects of exogenous hydrogen to reduce the severity of DPN in streptozotocin-induced diabetic rats. Compared with hydrogen-rich saline treatment, hydrogen inhalation significantly reduced blood glucose levels in diabetic rats in the 4th and 8th weeks. With regard to nerve function, hydrogen administration significantly attenuated the decrease in the velocity of motor nerve conduction in diabetic animals. In addition, hydrogen significantly attenuated oxidative stress by reducing the level of malondialdehyde, reactive oxygen species, and 8-hydroxy-2-deoxyguanosine and meaningfully enhanced the antioxidant capability by partially restoring the activities of superoxide dismutase. Further studies showed that hydrogen significantly upregulated the expression of nuclear factor erythroid-2-related factor 2 and downstream proteins such as catalase and hemeoxygenase-1 in the nerves of diabetic animals. Our paper showed that hydrogen exerts significant protective effects in DPN by downregulating oxidative stress via the pathway of nuclear factor erythroid-2-related factor 2, which suggests its potential value in clinical applications.


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    -  Han XC
    -  Ye ZH
    -  Hu HJ
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