Linked Life Data

17870057

Source:http://linkedlifedata.com/resource/pubmed/id/17870057

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2007-10-9
pubmed:abstractText
Insulin-like growth factor 2 (Igf2), a member of the insulin gene family, is important for brain development and has known neurotrophic properties. Though Igf2, its receptors, and binding proteins, are expressed in the adult CNS, their role in the adult brain is less well-understood. Here we studied how Igf2 deficiency affects brains of adult Igf2 knockout (Igf2(-/-)) mice following neurotoxic insult produced by the glutamate analog kainic acid (KA). Igf2(-/-) mice exhibited attenuated epileptiform activity in response to KA and were less susceptible to hippocampal neurodegeneration compared with Igf2(+/+) mice. Other brain areas protected by the lack of Igf2 included the amygdala complex, septal nuclei, and thalamic region. Apoptosis, as determined by TUNEL and Hoechst 33342 staining, was accordingly less for Igf2(-/-) mice. Hippocampal slices from Igf2(-/-) mice also were protected against the effects epileptogenic effects of KA compared to Igf2(+/+) mice suggesting that neuroprotection afforded by a lack of Igf2 may be developmental in origin and experiments demonstrating enhanced synaptic inhibition in slices taken from Igf2(-/-) mice support this hypothesis. Taken together, these results suggest that Igf2 may be important for mechanisms and circuits that contribute to neurodegeneration and epilepsy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
1175
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
85-95
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
IGF2 knockout mice are resistant to kainic acid-induced seizures and neurodegeneration.
pubmed:affiliation
Children's Hospital/Department of Neurology, Harvard Medical School, Boston, MA 02115, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural