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aFGF, bFGF and flg mRNAs Show Distinct Patterns of Induction in the Hippocampus Following Kainate‐induced Seizures
Author(s) -
Bugra Kuyas,
Pollard Hélène,
Charton Gérard,
Moreau Joëlle,
BenAri Yezekiel,
Khrestchatisky Michel
Publication year - 1994
Publication title -
european journal of neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 206
eISSN - 1460-9568
pISSN - 0953-816X
DOI - 10.1111/j.1460-9568.1994.tb00247.x
Subject(s) - dentate gyrus , kainic acid , hippocampal formation , hippocampus , kainate receptor , neuroscience , pyramidal cell , neuron , biology , receptor , microbiology and biotechnology , chemistry , medicine , biochemistry , nmda receptor , glutamate receptor , ampa receptor
We report that kainic acid‐induced seizures lead to marked increases in mRNAs encoding basic and acidic fibroblast growth factors (bFGF and aFGF, respectively) and fig, one of their receptors, in the rat hippocampus. Anticonvulsant pretreatment inhibits the up‐regulation of these mRNAs. The observed increase in fig mRNA levels involves the pyramidal cells of all hippocampal subfields and the granular ceils of the dentate gyrus. The increased expression of aFGF and bFGF mRNAs is limited to neuron populations that are resistant to seizure‐induced injury, the granular cells of dentate gyrus and pyramidal cells of CA1 region, respectively. The results suggest that the increase in the FGFs and fig may play pivotal roles in neuron survival and in long‐term changes occurring in the hippocampus following seizure activity.