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Neurochemical Research

, Volume 39, Issue 7, pp 1206–1218 | Cite as

Citicoline Protects Brain Against Closed Head Injury in Rats Through Suppressing Oxidative Stress and Calpain Over-Activation

  • Ke Qian
  • Yi Gu
  • Yumei Zhao
  • Zhenzong Li
  • Ming Sun
Original Paper

Abstract

Citicoline, a natural compound that functions as an intermediate in the biosynthesis of cell membrane phospholipids, is essential for membrane integrity and repair. It has been reported to protect brain against trauma. This study was designed to investigate the protective effects of citicoline on closed head injury (CHI) in rats. Citicoline (250 mg/kg i.v. 30 min and 4 h after CHI) lessened body weight loss, and improved neurological functions significantly at 7 days after CHI. It markedly lowered brain edema and blood–brain barrier permeability, enhanced the activities of superoxide dismutase and the levels of glutathione, reduced the levels of malondialdehyde and lactic acid. Moreover, citicoline suppressed the activities of calpain, and enhanced the levels of calpastatin, myelin basic protein and αII-spectrin in traumatic tissue 24 h after CHI. Also, it attenuated the axonal and myelin sheath damage in corpus callosum and the neuronal cell death in hippocampal CA1 and CA3 subfields 7 days after CHI. These data demonstrate the protection of citicoline against white matter and grey matter damage due to CHI through suppressing oxidative stress and calpain over-activation, providing additional support to the application of citicoline for the treatment of traumatic brain injury.

Keywords

Citicoline Closed head injury Oxidative stress Calpain Corpus callosum Hippocampus 

Notes

Acknowledgments

All authors have read the manuscript and approved the final version of the manuscript. We thank Miss Jingjing Yang for excellent technical assistance.

Conflict of interest

All authors have read the manuscript and the journal’s policy on the disclosure of potential conflicts of interest, and all authors have none to declare.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Ke Qian
    • 1
  • Yi Gu
    • 2
  • Yumei Zhao
    • 2
  • Zhenzong Li
    • 3
  • Ming Sun
    • 2
  1. 1.Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingPeople’s Republic of China
  2. 2.Department of Neuropharmacology, Beijing Neurosurgical InstituteCapital Medical UniversityBeijingPeople’s Republic of China
  3. 3.Department of Experimental Zoology, Beijing Neurosurgical InstituteCapital Medical UniversityBeijingPeople’s Republic of China

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