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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Role of endonuclease G in neuronal excitotoxicity in mice.

Excitotoxicity is a process by which excitatory amino acids induce neuronal cell death. To what extent excitotoxicity is regulated by apoptotic molecules is currently unclear. We previously found that endonuclease G (EndoG) plays an important role in both normal apoptosis in vivo and in pre-implantation embryogenesis. To investigate whether EndoG participates in neuronal cell death, we compared EndoG expression and kainic acid (KA)-induced seizure behavior and excitotoxicity in EndoG+/- and wild-type mice. We found that EndoG expression in the hippocampus of EndoG+/- mice is reduced compared to that in the wild-type mice. The reduction of EndoG expression levels in the hippocampus did not result in altered KA-induced seizure severity in EndoG+/- mice compared to that in wild-type mice. However, both CA3 and CA1 pyramidal neurons in EndoG+/- mice are more resistant to KA-induced cell death than that in wild-type mice. These results indicate that reduced expression of EndoG in the hippocampi of EndoG+/- mice leads to resistance to excitotoxicity.[1]


  1. Role of endonuclease G in neuronal excitotoxicity in mice. Wu, Y., Dong, M., Toepfer, N.J., Fan, Y., Xu, M., Zhang, J. Neurosci. Lett. (2004) [Pubmed]
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