Linked Life Data

21163331

Source:http://linkedlifedata.com/resource/pubmed/id/21163331

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2011-1-21
pubmed:abstractText
The stimulating action of anti-depressant drugs on the number of mitotic cells on the dentate gyrus on the adult rat depends on an intact diurnal rhythm of corticosterone. This suggests that there may be a clock mechanism in the dentate gyrus which is sensitive to corticoids. This paper reports the diurnal expression the 'clock' gene per1 in the dentate gyrus, and how it is altered by clamping the diurnal rhythm in corticosterone. We show that there is a diurnal rhythm in the number of mitotic progenitor cells in the dentate gyrus of the hippocampus in adult male per1-luciferase rats, approximately 6 h out of phase with the plasma corticosterone rhythm. This is suppressed by clamping the daily corticosterone levels by a subcutaneous implant of corticosterone (100 mg). There was also a daily rhythm of per1 expression in both suprachiasmatic nucleus (SCN) and the dentate gyrus, which were in phase with one another. The per1 rhythm in the dentate gyrus, but not the SCN, was suppressed by clamping the plasma corticosterone rhythm. These results are related to the previous finding that clamping the corticosterone rhythm also prevents the stimulating action of fluoxetine and other controlling agents on the mitotic activity of the progenitor cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1872-7972
pubmed:author
pubmed:copyrightInfo
© 2010 Elsevier Ireland Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
11
pubmed:volume
489
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
177-81
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Rhythmic expression of per1 in the dentate gyrus is suppressed by corticosterone: implications for neurogenesis.
pubmed:affiliation
Department of Physiology, Development and Neuroscience, University of Cambridge, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't