We investigated the temporal and spatial expression patterns of the GDNF gene after subjecting rats to an acute contusion injury of the spinal cord using the weight drop technique. Reverse transcriptase-polymerase chain reaction (RT-PCR) revealed that GDNF transcription in the spinal cord began to increase within 30 min after injury and peaked within 3 h. Immunohistochemical analysis showed GDNF immunoreactivity to be present mainly in microglia and macrophages 1 day after injury,but not in neurons or astrocytes. This immediate upregulation of GDNF gene expression may be a component of an inflammatory process and probably exerts a protective effect on neurons following spinal cord injury (SCI). NeuroReport 11:3877-3881 (C) 2000 Lippincott Williams & Wilkins.
机构:
Indiana Univ Sch Med, Med Neurosci Grad Program, Indianapolis, IN 47450 USA
Indiana Univ Sch Med, Spinal Cord & Brain Injury Res, Indianapolis, IN 47450 USA
Indiana Univ Sch Med, Stark Neurosci Res Inst, Indianapolis, IN 47450 USA
Indiana Univ Sch Med, Dept Neurol Surg, Indianapolis, IN 47450 USAIndiana Univ Sch Med, Med Neurosci Grad Program, Indianapolis, IN 47450 USA
Walker, Melissa J.
Xu, Xiao-Ming
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Indiana Univ Sch Med, Spinal Cord & Brain Injury Res, Indianapolis, IN 47450 USA
Indiana Univ Sch Med, Stark Neurosci Res Inst, Indianapolis, IN 47450 USA
Indiana Univ Sch Med, Dept Neurol Surg, Indianapolis, IN 47450 USAIndiana Univ Sch Med, Med Neurosci Grad Program, Indianapolis, IN 47450 USA
机构:
So Taiwan Univ Technol, Ctr Gen Educ, Tainan, Taiwan
Chi Mei Med Ctr, Dept Surg, Tainan, TaiwanMackay Mem Hosp, Dept Surg, Taipei, Taiwan
Kao, Cheng-Hsing
Chen, Sheng-Hsien
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Chi Mei Med Ctr, Dept Obstet & Gynecol, Tainan, Taiwan
Taipei Med Univ, Sch Med, Dept Obstet & Gynecol, Taipei, TaiwanMackay Mem Hosp, Dept Surg, Taipei, Taiwan
Chen, Sheng-Hsien
Chio, Chung-Ching
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Chi Mei Med Ctr, Dept Surg, Tainan, TaiwanMackay Mem Hosp, Dept Surg, Taipei, Taiwan
Chio, Chung-Ching
Chang, Chen-Kuei
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Mackay Mem Hosp, Dept Surg, Taipei, Taiwan
Taipei Med Univ, Grad Inst Injury Prevent & Control, Taipei, Taiwan
Municipal Wan Fan Hosp, Taipei, TaiwanMackay Mem Hosp, Dept Surg, Taipei, Taiwan
Chang, Chen-Kuei
Lin, Mao-Tsun
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Chi Mei Med Ctr, Dept Med Res, Tainan, TaiwanMackay Mem Hosp, Dept Surg, Taipei, Taiwan