Anti-inflammation Effects of Cordyceps sinensis Mycelium in Focal Cerebral Ischemic Injury Rats

Abstract

Brain ischemia–reperfusion (IR) triggers a complex series of biochemical events including inflammation. To test the neuroprotective efficacy of Cordyceps sinensis mycelium (CSM) in a rat model of focal cerebral IR, ischemic animals were treated with CSM. They were evaluated at 24 h after reperfusion for neurological deficit score. Furthermore, the mechanism of the anti-inflammatory potential of CSM in the regulation of nuclear factor kappaB, polymorphonuclear cells (PMN), interleukin-1β (IL-1β), inducible nitric oxide synthase (iNOS), tumor necrosis factor-α (TNF-α), adhesion molecule (ICAM-1), and cyclooxygenase-2 (COX-2) was determined by ELISA and immunohistochemistry. CSM significantly inhibited IR-induced up-regulation of NF-kappaB activation and the brain production of IL-1β, TNF-α, iNOS, ICAM-1, and COX-2. Moreover, CSM suppressed infiltration of PMN. The study demonstrates the neuroprotective potential of CSM inhibition through anti-inflammation in a rat model of ischemia–reperfusion.

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ACKNOWLEDGEMENTS

This work was supported by the Key New Drugs Innovation project from Ministry of Science and Technology (2009ZX09502-017), the project from Key Laboratory of Mental Health, Chinese Academy of Sciences, Young Scientist project from IPCAS (08CX043004), NNSF grant (30800301), the Knowledge Innovation Program of the Chinese Academy of Sciences (KSCX2-YW-R-254).

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Correspondence to Jianyou Guo.

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Liu, Z., Li, P., Zhao, D. et al. Anti-inflammation Effects of Cordyceps sinensis Mycelium in Focal Cerebral Ischemic Injury Rats. Inflammation 34, 639–644 (2011). https://doi.org/10.1007/s10753-010-9273-5

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KEY WORDS

  • CSM
  • inflammation
  • ischemia–reperfusion
  • inflammatory cells
  • inflammatory mediators