Linked Life Data

15217378

Source:http://linkedlifedata.com/resource/pubmed/id/15217378

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2004-6-25
pubmed:abstractText
Brief or prolonged seizures induce various patterns of plasticity. Axonal or dendritic remodelling and development of ectopic granule cells have been described in the hilus and molecular layer of the adult rodent hippocampus. Hippocampal cell proliferation also occurs after seizures. However, whether the seizure-induced cell proliferation plays a pathological or reparative role in the epileptic brain is unknown. In this study, we attempted to suppress the seizure-induced cell proliferation with the antimitotic agent cytosine-b-D-arabinofuranoside (Ara-C) and to examine the development of spontaneous recurrent seizures (SRS). Experimental status epilepticus was induced with pilocarpine, and Ara-C or vehicle alone was infused continuously with an osmotic minipump. SRS were video-monitored. BrdU immunohistochemistry was used for the spatial and temporal analysis of hippocampal cell proliferation, and double labelling with NeuN, calbindin and GFAP antibodies was performed for the differentiation of BrdU-positive cells. Timm staining was also performed for evaluation of mossy fibre sprouting (MFS). With continuous Ara-C infusion, the likelihood of developing SRS was decreased and, during the latent period, the development of ectopic granule cells in the hilus and new glia in the CA1 area was reduced when compared with the vehicle-infused group, while MFS was not altered. The results suggest that the hippocampal cell proliferation plays a pro-epileptogenic role rather than a compensatory role, and that the epileptogenic process may be associated with the generation of new glia in the CA1 area and/or new neurons in the dentate gyrus, particularly the ectopically located hilar granule cells.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0953-816X
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3219-26
pubmed:dateRevised
2010-6-10
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Continuous cytosine-b-D-arabinofuranoside infusion reduces ectopic granule cells in adult rat hippocampus with attenuation of spontaneous recurrent seizures following pilocarpine-induced status epilepticus.
pubmed:affiliation
Stroke & Neural Stem Cell Laboratory in Clinical Research Institute, Department of Neurology, Seoul National University Hospital, 28, Yongon-Dong, Chongro-Gu, Seoul, 110-744, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't