Cellular and Molecular Neurobiology

, Volume 35, Issue 7, pp 921–930 | Cite as

Protective Effect of Pyrroloquinoline Quinone (PQQ) in Rat Model of Intracerebral Hemorrhage

  • Hongjian Lu
  • Jiabing Shen
  • Xinjian Song
  • Jianbin Ge
  • Rixin Cai
  • Aihua Dai
  • Zhongli Jiang
Original Research


Pyrroloquinoline quinone (PQQ) has invoked considerable interest because of its presence in foods, antioxidant properties, cofactor of dehydrogenase, and amine oxidase. Protective roles of PQQ in central nervous system diseases, such as experimental stroke and spinal cord injury models have been emerged. However, it is unclear whether intracerebral hemorrhage (ICH), as an acute devastating disease, can also benefit from PQQ in experimental conditions. Herein, we examined the possible effect of PQQ on neuronal functions following ICH in the adult rats. The results showed that rats pretreated with PQQ at 10 mg/kg effectively improved the locomotor functions, alleviated the hematoma volumes, and reduced the expansion of brain edema after ICH. Also, pretreated rats with PQQ obviously reduced the production of reactive oxygen species after ICH, probably due to its antioxidant properties. Further, we found that, Bcl-2/Bax, the important indicator of oxidative stress insult in mitochondria after ICH, exhibited increasing ratio in PQQ-pretreated groups. Moreover, activated caspase-3, the apoptotic executor, showed coincident alleviation in PQQ groups after ICH. Collectively, we speculated that PQQ might be an effective and potential neuroprotectant in clinical therapy for ICH.


PQQ ICH ROS Neuroprotectant Rat 



We thank Dr. Aiguo Shen of Nantong University for his advice and great help on this paper. This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

Conflict of interest

The authors declare no conflict of interest.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Hongjian Lu
    • 1
    • 2
  • Jiabing Shen
    • 3
    • 4
  • Xinjian Song
    • 2
  • Jianbin Ge
    • 2
  • Rixin Cai
    • 4
  • Aihua Dai
    • 3
    • 4
  • Zhongli Jiang
    • 1
  1. 1.Department of Rehabilitation MedicineThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
  2. 2.The Second People’s Hospital of NantongNantongChina
  3. 3.Department of NeurologyAffiliated Hospital of Nantong UniversityNantongChina
  4. 4.Jiangsu Province Key Laboratory for Inflammation and Molecular Drug TargetMedical College of Nantong UniversityNantongChina

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