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Abstract Title:

Perillaldehyde Alleviates Spinal Cord Ischemia-Reperfusion Injury Via Activating the Nrf2 Pathway.

Abstract Source:

J Surg Res. 2021 Aug 13 ;268:308-317. Epub 2021 Aug 13. PMID: 34399353

Abstract Author(s):

Wenjun Zheng, Bing Liu, Enyi Shi

Article Affiliation:

Wenjun Zheng

Abstract:

BACKGROUND: Spinal Cord ischemia-reperfusion injury (SCII) is one of the most destructive complications in thoracic-abdominal aortic surgery, which can cause physical abnormalities, paralysis and even brain death. Evidence has shown that perillaldehyde (PAH) can ameliorate rat's cerebra ischemia-reperfusion injury. However, the effect of PAH on SCII remains unknown.

METHODS: The current study established SCII rat models and oxygen and glucose deprivation/reoxygenation-induced BV2 microglia models to explore whether PAH could alleviate SCII symptoms and to investigate underlying mechanism.

RESULTS: SCII rats underwent severe neurologic motor dysfunction and histopathologic injury compared with the normal rats, which are exhibited by loss of motor neurons and decrease of nissl bodies. Treatment with PAH significantly ameliorated motor dysfunction and neuron damage. PAH downregulated the expression of NLR family pyrin domain containing 3, cleaved/pro caspase-1, interleukin-1β and interleukin-18 in spinal cord tissues of SCII rats. Besides, the contents of oxidative stress-related factors superoxide dismutase, manganese-dependent superoxide dismutase, catalase and glutathione peroxidase were significantly increased and malondialdehyde content was decreased after PAH treatment. PAH treatment upregulated the expression of nuclear factor-E2-related factor 2 and heme oxygenase-1 in spinal cord tissues of SCII rats. Our in vitro study confirmed that PAH inhibited microglial activation by activating the nuclear factor-E2-related factor 2/heme oxygenase-1 pathway, exhibited by alleviated inflammation and oxidative stress.

CONCLUSIONS: This study elucidates that PAH has the potential value for treating SCII, which provides an experimental basis for clinical trials in the future.

Study Type : Animal Study

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Sayer Ji
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