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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2003, Vol. 8 ›› Issue (2): 139-142.

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Relation between activation of hippocampal astrocytes and ischemic tolerance induced by 3-nitropropionic acid in gerbils1

ZHU Hong-Can, SUN Sheng-Gang, LI Hong-Ge   

  1. Department of Neurology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, Hubei
  • Received:2002-11-04 Revised:2002-12-04 Online:2003-04-26 Published:2020-11-25

Abstract: AIM: To investigate the relationship between astroglial activation state and ischemic tolerance induced by low dose of 3-nitropropionic acid (3-NPA) in gerbil hippocampus. METHODS: Transient forebrain ischemic model was induced by bilateral common carotid arteries occlution.HE staining and immunohistochemistry were used to identify neuronal and astrocyte response. RESULTS: Preconditioning with 3-NPA produced protective effects of CA1neurons.The number of glial fibrillary acidic protein positive astrocyte in hippocampal CA1 region increased slightly in control group, but increased significantly in preconditioning of the brain with 3-nitropropionic acid. CONCLUSION: The state of astroglial activation is related to neuronal survival in ischemic tolerance induced by low dose of 3-nitropropionic acid.

Key words: pharmacodynamics, 3-nitropropionic acid, cerebral ischemic tolerance, astrocyte, hippocampus, gerbil

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