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Article

Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia

  • Authors:
    • Sheng‑Yang Huang
    • Shih‑Huang Tai
    • Che‑Chao Chang
    • Yi‑Fang Tu
    • Chih‑Han Chang
    • E‑Jian Lee
  • View Affiliations / Copyright

    Affiliations: Institute of Biomedical Engineering, National Cheng Kung University, Tainan 70428, Taiwan, R.O.C., Neurophysiology Laboratory, Department of Surgery, National Cheng Kung University Medical Center and Medical School, Tainan 70428, Taiwan, R.O.C.
  • Pages: 2252-2262
    |
    Published online on: January 15, 2018
       https://doi.org/10.3892/ijmm.2018.3387
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Abstract

In the present study, the neuroprotective potential of magnolol against ischemia-reperfusion brain injury was examined via in vivo and in vitro experiments. Magnolol exhibited strong radical scavenging and antioxidant activity, and significantly inhibited the production of interleukin‑6, tumor necrosis factor‑a and nitrite/nitrate (NOX) in lipopolysaccharide-stimulated BV2 and RAW 264.7 cells when applied at concentrations of 10 and 50 µM, respectively. Magnolol (100 µM) also significantly attenuated oxygen‑glucose deprivation‑induced damage in neonatal rat hippocampal slice cultures, when administered up to 4 h following the insult. In a rat model of stable ischemia, compared with a vehicle‑treated ischemic control, pretreatment with magnolol (0.01‑1 mg/kg, intravenously) significantly reduced brain infarction following ischemic stroke, and post‑treatment with magnolol (1 mg/kg) remained effective and significantly reduced infarction when administered 2 h following the onset of ischemia. Additionally, magnolol (0.3 and 1 mg/kg) significantly reduced the accumulation of superoxide anions at the border zones of infarction and reduced oxidative damage in the ischemic brain. This was assessed by measuring the levels of NOX, malondialdehyde and myeloperoxidase, the ratio of glutathione/oxidized glutathione and the immunoreactions of 8‑hydroxy‑2'‑deoxyguanosine and 4‑hydroxynonenal. Thus, magnolol was revealed to protect against ischemia‑reperfusion brain damage. This may be partly attributed to its antioxidant, radical scavenging and anti‑inflammatory effects.
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Copy and paste a formatted citation
Spandidos Publications style
Huang SY, Tai SH, Chang CC, Tu YF, Chang CH and Lee EJ: Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia. Int J Mol Med 41: 2252-2262, 2018.
APA
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., & Lee, E. (2018). Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia. International Journal of Molecular Medicine, 41, 2252-2262. https://doi.org/10.3892/ijmm.2018.3387
MLA
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., Lee, E."Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia". International Journal of Molecular Medicine 41.4 (2018): 2252-2262.
Chicago
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., Lee, E."Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia". International Journal of Molecular Medicine 41, no. 4 (2018): 2252-2262. https://doi.org/10.3892/ijmm.2018.3387
Copy and paste a formatted citation
x
Spandidos Publications style
Huang SY, Tai SH, Chang CC, Tu YF, Chang CH and Lee EJ: Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia. Int J Mol Med 41: 2252-2262, 2018.
APA
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., & Lee, E. (2018). Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia. International Journal of Molecular Medicine, 41, 2252-2262. https://doi.org/10.3892/ijmm.2018.3387
MLA
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., Lee, E."Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia". International Journal of Molecular Medicine 41.4 (2018): 2252-2262.
Chicago
Huang, S., Tai, S., Chang, C., Tu, Y., Chang, C., Lee, E."Magnolol protects against ischemic-reperfusion brain damage following oxygen-glucose deprivation and transient focal cerebral ischemia". International Journal of Molecular Medicine 41, no. 4 (2018): 2252-2262. https://doi.org/10.3892/ijmm.2018.3387
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